Somewhat working

Add source
Start EFI port
2025-11-29 13:34:21 +01:00 · 2025-11-28 22:50:05 +01:00 · 2025-11-28 22:42:14 +01:00 · 2025-11-23 18:52:51 +01:00 · 2025-11-23 11:54:05 +01:00 · 2025-11-22 23:43:42 +01:00
77 changed files with 125449 additions and 23 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,6 @@ _o/
 build/
 picolibc/
 picolibc-install/
-/lib/
+/lib/
+*.iso
+*.img
--- a/efi-port/.gitignore
+++ b/efi-port/.gitignore
@@ -0,0 +1 @@
+out/
--- a/efi-port/core/compat/math.h
+++ b/efi-port/core/compat/math.h
@@ -0,0 +1,29 @@
+#ifndef COMPAT_MATH_H
+#define COMPAT_MATH_H
+
+#define HUGE_VAL (__builtin_huge_val())
+#define NAN (__builtin_nan(""))
+#define INFINITY (__builtin_inf())
+
+double fabs(double x);
+double floor(double x);
+double ceil(double x);
+double fmod(double x, double y);
+double pow(double x, double y);
+double sqrt(double x);
+double sin(double x);
+double cos(double x);
+double tan(double x);
+double asin(double x);
+double acos(double x);
+double atan(double x);
+double atan2(double y, double x);
+double exp(double x);
+double log(double x);
+double log10(double x);
+double cbrt(double x);
+double log2(double x);
+double trunc(double x);
+
+
+#endif
--- a/efi-port/core/compat/setjmp.h
+++ b/efi-port/core/compat/setjmp.h
@@ -0,0 +1,9 @@
+#ifndef COMPAT_SETJMP_H
+#define COMPAT_SETJMP_H
+
+typedef void *jmp_buf[5];
+
+#define setjmp(env)   __builtin_setjmp(env)
+#define longjmp(env, val) __builtin_longjmp(env, val)
+
+#endif
--- a/efi-port/core/compat/stdarg.h
+++ b/efi-port/core/compat/stdarg.h
@@ -0,0 +1,14 @@
+#ifndef COMPAT_STDARG_H
+#define COMPAT_STDARG_H
+
+#ifndef MDE_CPU_X64
+#define MDE_CPU_X64
+#endif
+#include <Base.h>
+#include_next <stdarg.h>
+
+#ifndef va_copy
+#define va_copy(dest, src) VA_COPY(dest, src)
+#endif
+
+#endif
--- a/efi-port/core/compat/stdint.h
+++ b/efi-port/core/compat/stdint.h
@@ -0,0 +1,31 @@
+#ifndef COMPAT_STDINT_H
+#define COMPAT_STDINT_H
+
+#ifndef MDE_CPU_X64
+#define MDE_CPU_X64
+#endif
+#include <Base.h>
+#include_next <stdint.h>
+
+typedef int8_t int_least8_t;
+typedef uint8_t uint_least8_t;
+typedef int16_t int_least16_t;
+typedef uint16_t uint_least16_t;
+typedef int32_t int_least32_t;
+typedef uint32_t uint_least32_t;
+typedef int64_t int_least64_t;
+typedef uint64_t uint_least64_t;
+
+typedef int8_t int_fast8_t;
+typedef uint8_t uint_fast8_t;
+typedef int16_t int_fast16_t;
+typedef uint16_t uint_fast16_t;
+typedef int32_t int_fast32_t;
+typedef uint32_t uint_fast32_t;
+typedef int64_t int_fast64_t;
+typedef uint64_t uint_fast64_t;
+
+typedef int64_t intmax_t;
+typedef uint64_t uintmax_t;
+
+#endif
--- a/efi-port/core/compat/stdio.h
+++ b/efi-port/core/compat/stdio.h
@@ -0,0 +1,14 @@
+#ifndef COMPAT_STDIO_H
+#define COMPAT_STDIO_H
+
+#ifndef MDE_CPU_X64
+#define MDE_CPU_X64
+#endif
+#include <Base.h>
+#include_next <stdio.h>
+#include <stdarg.h>
+
+int vsnprintf(char *str, size_t size, const char *format, va_list ap);
+int snprintf(char *str, size_t size, const char *format, ...);
+
+#endif
--- a/efi-port/core/compat/time.h
+++ b/efi-port/core/compat/time.h
@@ -0,0 +1,13 @@
+#ifndef COMPAT_TIME_H
+#define COMPAT_TIME_H
+
+#ifndef MDE_CPU_X64
+#define MDE_CPU_X64
+#endif
+#include <Base.h>
+#include_next <time.h>
+
+double difftime(time_t time1, time_t time0);
+
+
+#endif
--- a/efi-port/core/compat/windows.h
+++ b/efi-port/core/compat/windows.h
@@ -0,0 +1,12 @@
+/* Dummy windows.h for Duktape compatibility in EFI */
+#ifndef WINDOWS_H
+#define WINDOWS_H
+
+#ifndef MDE_CPU_X64
+#define MDE_CPU_X64
+#endif
+
+#include <Uefi.h>
+
+#endif
+
--- a/efi-port/core/lib/duktape/src/duk_config.h
+++ b/efi-port/core/lib/duktape/src/duk_config.h
--- a/efi-port/core/lib/duktape/src/duk_source_meta.json
+++ b/efi-port/core/lib/duktape/src/duk_source_meta.json
@@ -0,0 +1,996 @@
+{
+    "type": "duk_source_meta",
+    "comment": "Metadata for prepared Duktape sources and configuration",
+    "git_commit": "b5d069a96ba0989c444dad8e6f002a0a057b4df0",
+    "git_branch": "master",
+    "git_describe": "v2.5.0-393-gb5d069a9",
+    "duk_version": 29999,
+    "duk_version_string": "2.99.99",
+    "line_map": [
+        {
+            "original_file": "duk_unicode_tables.c",
+            "original_line": 1,
+            "combined_line": 159
+        },
+        {
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+            "original_line": 1,
+            "combined_line": 164
+        },
+        {
+            "original_file": "duk_dblunion.h",
+            "original_line": 1,
+            "combined_line": 201
+        },
+        {
+            "original_file": "duk_fltunion.h",
+            "original_line": 1,
+            "combined_line": 621
+        },
+        {
+            "original_file": "duk_replacements.h",
+            "original_line": 1,
+            "combined_line": 661
+        },
+        {
+            "original_file": "duk_jmpbuf.h",
+            "original_line": 1,
+            "combined_line": 691
+        },
+        {
+            "original_file": "duk_exception.h",
+            "original_line": 1,
+            "combined_line": 716
+        },
+        {
+            "original_file": "duk_forwdecl.h",
+            "original_line": 1,
+            "combined_line": 748
+        },
+        {
+            "original_file": "duk_tval.h",
+            "original_line": 1,
+            "combined_line": 881
+        },
+        {
+            "original_file": "duk_builtins.h",
+            "original_line": 1,
+            "combined_line": 1582
+        },
+        {
+            "original_file": "duk_internal.h",
+            "original_line": 45,
+            "combined_line": 3156
+        },
+        {
+            "original_file": "duk_util.h",
+            "original_line": 1,
+            "combined_line": 3158
+        },
+        {
+            "original_file": "duk_strings.h",
+            "original_line": 1,
+            "combined_line": 3954
+        },
+        {
+            "original_file": "duk_js_bytecode.h",
+            "original_line": 1,
+            "combined_line": 4130
+        },
+        {
+            "original_file": "duk_lexer.h",
+            "original_line": 1,
+            "combined_line": 4604
+        },
+        {
+            "original_file": "duk_js_compiler.h",
+            "original_line": 1,
+            "combined_line": 5040
+        },
+        {
+            "original_file": "duk_regexp.h",
+            "original_line": 1,
+            "combined_line": 5273
+        },
+        {
+            "original_file": "duk_heaphdr.h",
+            "original_line": 1,
+            "combined_line": 5362
+        },
+        {
+            "original_file": "duk_refcount.h",
+            "original_line": 1,
+            "combined_line": 5848
+        },
+        {
+            "original_file": "duk_api_internal.h",
+            "original_line": 1,
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+        {
+            "original_file": "duk_hstring.h",
+            "original_line": 1,
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+        },
+        {
+            "original_file": "duk_hobject.h",
+            "original_line": 1,
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+            "original_file": "duk_hnatfunc.h",
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+            "original_line": 1,
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+        {
+            "original_file": "duk_bi_json.c",
+            "original_line": 1,
+            "combined_line": 49221
+        },
+        {
+            "original_file": "duk_bi_math.c",
+            "original_line": 1,
+            "combined_line": 52561
+        },
+        {
+            "original_file": "duk_bi_number.c",
+            "original_line": 1,
+            "combined_line": 53052
+        },
+        {
+            "original_file": "duk_bi_object.c",
+            "original_line": 1,
+            "combined_line": 53316
+        },
+        {
+            "original_file": "duk_bi_performance.c",
+            "original_line": 1,
+            "combined_line": 54033
+        },
+        {
+            "original_file": "duk_bi_pointer.c",
+            "original_line": 1,
+            "combined_line": 54064
+        },
+        {
+            "original_file": "duk_bi_promise.c",
+            "original_line": 1,
+            "combined_line": 54138
+        },
+        {
+            "original_file": "duk_bi_proxy.c",
+            "original_line": 1,
+            "combined_line": 54182
+        },
+        {
+            "original_file": "duk_bi_reflect.c",
+            "original_line": 1,
+            "combined_line": 54233
+        },
+        {
+            "original_file": "duk_bi_regexp.c",
+            "original_line": 1,
+            "combined_line": 54321
+        },
+        {
+            "original_file": "duk_bi_string.c",
+            "original_line": 1,
+            "combined_line": 54549
+        },
+        {
+            "original_file": "duk_bi_symbol.c",
+            "original_line": 1,
+            "combined_line": 56036
+        },
+        {
+            "original_file": "duk_bi_thread.c",
+            "original_line": 1,
+            "combined_line": 56208
+        },
+        {
+            "original_file": "duk_bi_thrower.c",
+            "original_line": 1,
+            "combined_line": 56532
+        },
+        {
+            "original_file": "duk_debug_fixedbuffer.c",
+            "original_line": 1,
+            "combined_line": 56541
+        },
+        {
+            "original_file": "duk_debug_vsnprintf.c",
+            "original_line": 1,
+            "combined_line": 56610
+        },
+        {
+            "original_file": "duk_debugger.c",
+            "original_line": 1,
+            "combined_line": 57855
+        },
+        {
+            "original_file": "duk_error_augment.c",
+            "original_line": 1,
+            "combined_line": 60927
+        },
+        {
+            "original_file": "duk_error_longjmp.c",
+            "original_line": 1,
+            "combined_line": 61528
+        },
+        {
+            "original_file": "duk_error_misc.c",
+            "original_line": 1,
+            "combined_line": 61635
+        },
+        {
+            "original_file": "duk_error_throw.c",
+            "original_line": 1,
+            "combined_line": 61813
+        },
+        {
+            "original_file": "duk_hbuffer_alloc.c",
+            "original_line": 1,
+            "combined_line": 61972
+        },
+        {
+            "original_file": "duk_hbuffer_assert.c",
+            "original_line": 1,
+            "combined_line": 62106
+        },
+        {
+            "original_file": "duk_hbuffer_ops.c",
+            "original_line": 1,
+            "combined_line": 62119
+        },
+        {
+            "original_file": "duk_hbufobj_misc.c",
+            "original_line": 2,
+            "combined_line": 62197
+        },
+        {
+            "original_file": "duk_heap_alloc.c",
+            "original_line": 1,
+            "combined_line": 62319
+        },
+        {
+            "original_file": "duk_heap_finalize.c",
+            "original_line": 1,
+            "combined_line": 63595
+        },
+        {
+            "original_file": "duk_heap_hashstring.c",
+            "original_line": 1,
+            "combined_line": 64044
+        },
+        {
+            "original_file": "duk_heap_markandsweep.c",
+            "original_line": 1,
+            "combined_line": 64165
+        },
+        {
+            "original_file": "duk_heap_memory.c",
+            "original_line": 1,
+            "combined_line": 65771
+        },
+        {
+            "original_file": "duk_heap_misc.c",
+            "original_line": 1,
+            "combined_line": 66205
+        },
+        {
+            "original_file": "duk_heap_refcount.c",
+            "original_line": 1,
+            "combined_line": 66392
+        },
+        {
+            "original_file": "duk_heap_stringcache.c",
+            "original_line": 1,
+            "combined_line": 67364
+        },
+        {
+            "original_file": "duk_heap_stringtable.c",
+            "original_line": 1,
+            "combined_line": 67865
+        },
+        {
+            "original_file": "duk_heaphdr_assert.c",
+            "original_line": 1,
+            "combined_line": 69108
+        },
+        {
+            "original_file": "duk_hobject_alloc.c",
+            "original_line": 1,
+            "combined_line": 69199
+        },
+        {
+            "original_file": "duk_hobject_array.c",
+            "original_line": 2,
+            "combined_line": 69479
+        },
+        {
+            "original_file": "duk_hobject_assert.c",
+            "original_line": 1,
+            "combined_line": 69758
+        },
+        {
+            "original_file": "duk_hobject_lookup.c",
+            "original_line": 2,
+            "combined_line": 69998
+        },
+        {
+            "original_file": "duk_hobject_misc.c",
+            "original_line": 1,
+            "combined_line": 70556
+        },
+        {
+            "original_file": "duk_hobject_pc2line.c",
+            "original_line": 1,
+            "combined_line": 71019
+        },
+        {
+            "original_file": "duk_hobject_props.c",
+            "original_line": 1,
+            "combined_line": 71265
+        },
+        {
+            "original_file": "duk_hobject_proxy.c",
+            "original_line": 2,
+            "combined_line": 71721
+        },
+        {
+            "original_file": "duk_hobject_resize.c",
+            "original_line": 2,
+            "combined_line": 71885
+        },
+        {
+            "original_file": "duk_hstring_assert.c",
+            "original_line": 1,
+            "combined_line": 73228
+        },
+        {
+            "original_file": "duk_hstring_misc.c",
+            "original_line": 1,
+            "combined_line": 73250
+        },
+        {
+            "original_file": "duk_hthread_alloc.c",
+            "original_line": 1,
+            "combined_line": 73479
+        },
+        {
+            "original_file": "duk_hthread_builtins.c",
+            "original_line": 1,
+            "combined_line": 73538
+        },
+        {
+            "original_file": "duk_hthread_misc.c",
+            "original_line": 1,
+            "combined_line": 74438
+        },
+        {
+            "original_file": "duk_hthread_stacks.c",
+            "original_line": 1,
+            "combined_line": 74535
+        },
+        {
+            "original_file": "duk_js_arith.c",
+            "original_line": 1,
+            "combined_line": 74898
+        },
+        {
+            "original_file": "duk_js_call.c",
+            "original_line": 1,
+            "combined_line": 75039
+        },
+        {
+            "original_file": "duk_js_compiler.c",
+            "original_line": 1,
+            "combined_line": 77862
+        },
+        {
+            "original_file": "duk_js_executor.c",
+            "original_line": 1,
+            "combined_line": 86010
+        },
+        {
+            "original_file": "duk_js_ops.c",
+            "original_line": 1,
+            "combined_line": 91409
+        },
+        {
+            "original_file": "duk_js_prop.c",
+            "original_line": 2,
+            "combined_line": 92848
+        },
+        {
+            "original_file": "duk_js_var.c",
+            "original_line": 1,
+            "combined_line": 93095
+        },
+        {
+            "original_file": "duk_lexer.c",
+            "original_line": 1,
+            "combined_line": 94829
+        },
+        {
+            "original_file": "duk_numconv.c",
+            "original_line": 1,
+            "combined_line": 97281
+        },
+        {
+            "original_file": "duk_prop_defown.c",
+            "original_line": 1,
+            "combined_line": 99623
+        },
+        {
+            "original_file": "duk_prop_delete.c",
+            "original_line": 1,
+            "combined_line": 101144
+        },
+        {
+            "original_file": "duk_prop_enum.c",
+            "original_line": 1,
+            "combined_line": 102280
+        },
+        {
+            "original_file": "duk_prop_get.c",
+            "original_line": 1,
+            "combined_line": 102538
+        },
+        {
+            "original_file": "duk_prop_getown.c",
+            "original_line": 1,
+            "combined_line": 104476
+        },
+        {
+            "original_file": "duk_prop_has.c",
+            "original_line": 1,
+            "combined_line": 105079
+        },
+        {
+            "original_file": "duk_prop_ownpropkeys.c",
+            "original_line": 1,
+            "combined_line": 105712
+        },
+        {
+            "original_file": "duk_prop_set.c",
+            "original_line": 1,
+            "combined_line": 106347
+        },
+        {
+            "original_file": "duk_prop_util.c",
+            "original_line": 1,
+            "combined_line": 109579
+        },
+        {
+            "original_file": "duk_regexp_compiler.c",
+            "original_line": 1,
+            "combined_line": 109893
+        },
+        {
+            "original_file": "duk_regexp_executor.c",
+            "original_line": 1,
+            "combined_line": 111194
+        },
+        {
+            "original_file": "duk_selftest.c",
+            "original_line": 1,
+            "combined_line": 112187
+        },
+        {
+            "original_file": "duk_tval.c",
+            "original_line": 2,
+            "combined_line": 112934
+        },
+        {
+            "original_file": "duk_unicode_wtf8.c",
+            "original_line": 1,
+            "combined_line": 113085
+        },
+        {
+            "original_file": "duk_util_bitdecoder.c",
+            "original_line": 1,
+            "combined_line": 114166
+        },
+        {
+            "original_file": "duk_util_bitencoder.c",
+            "original_line": 1,
+            "combined_line": 114330
+        },
+        {
+            "original_file": "duk_util_bufwriter.c",
+            "original_line": 1,
+            "combined_line": 114373
+        },
+        {
+            "original_file": "duk_util_cast.c",
+            "original_line": 1,
+            "combined_line": 114659
+        },
+        {
+            "original_file": "duk_util_double.c",
+            "original_line": 1,
+            "combined_line": 114831
+        },
+        {
+            "original_file": "duk_util_hashbytes.c",
+            "original_line": 1,
+            "combined_line": 115174
+        },
+        {
+            "original_file": "duk_util_memory.c",
+            "original_line": 1,
+            "combined_line": 115236
+        },
+        {
+            "original_file": "duk_util_tinyrandom.c",
+            "original_line": 1,
+            "combined_line": 115272
+        }
+    ]
+}
--- a/efi-port/core/lib/duktape/src/duktape.c
+++ b/efi-port/core/lib/duktape/src/duktape.c
--- a/efi-port/core/lib/duktape/src/duktape.h
+++ b/efi-port/core/lib/duktape/src/duktape.h
--- a/efi-port/core/src/compat.c
+++ b/efi-port/core/src/compat.c
@@ -0,0 +1,319 @@
+#include <Uefi.h>
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PrintLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+
+// EDK2 CRT Support Header
+#include <CrtLibSupport.h>
+
+// Global variables required by CrtLibSupport.h
+int errno = 0;
+FILE *stderr = NULL;
+
+// Better malloc/free with size tracking
+typedef struct {
+    size_t size;
+    char data[];
+} AllocHeader;
+
+void *my_malloc(size_t size) {
+    AllocHeader *hdr;
+    if (gBS->AllocatePool(EfiLoaderData, size + sizeof(AllocHeader), (void**)&hdr) != EFI_SUCCESS) {
+        return NULL;
+    }
+    hdr->size = size;
+    return hdr->data;
+}
+
+void my_free(void *ptr) {
+    if (ptr) {
+        AllocHeader *hdr = (AllocHeader*)((char*)ptr - sizeof(AllocHeader));
+        gBS->FreePool(hdr);
+    }
+}
+
+void *my_realloc(void *ptr, size_t size) {
+    if (!ptr) return my_malloc(size);
+    if (size == 0) {
+        my_free(ptr);
+        return NULL;
+    }
+
+    AllocHeader *old_hdr = (AllocHeader*)((char*)ptr - sizeof(AllocHeader));
+    size_t old_size = old_hdr->size;
+
+    void *new_ptr = my_malloc(size);
+    if (!new_ptr) return NULL;
+
+    CopyMem(new_ptr, ptr, old_size < size ? old_size : size);
+    my_free(ptr);
+    return new_ptr;
+}
+
+// Redirect standard malloc/free/realloc to our versions
+#undef malloc
+#undef free
+#undef realloc
+
+void *malloc(size_t size) { return my_malloc(size); }
+void free(void *ptr) { my_free(ptr); }
+void *realloc(void *ptr, size_t size) { return my_realloc(ptr, size); }
+
+void *calloc(size_t nmemb, size_t size) {
+    size_t total = nmemb * size;
+    void *ptr = malloc(total);
+    if (ptr) {
+        SetMem(ptr, total, 0);
+    }
+    return ptr;
+}
+
+// IO
+int printf(const char *format, ...) {
+    return 0; 
+}
+
+int vsnprintf(char *str, size_t size, const char *format, va_list ap) {
+    return (int)AsciiVSPrint(str, size, format, ap);
+}
+
+int snprintf(char *str, size_t size, const char *format, ...) {
+    VA_LIST Marker;
+    VA_START(Marker, format);
+    UINTN Return = AsciiVSPrint(str, size, format, Marker);
+    VA_END(Marker);
+    return (int)Return;
+}
+
+// sprintf is a macro in CrtLibSupport.h, so we don't define it.
+
+
+// Math
+// Duktape needs math. EDK2 doesn't provide standard math lib.
+// We might need to implement simple versions or pull in a math lib.
+// For now, stubs.
+double floor(double x) { return (double)(int)x; } // Very wrong for negative/large
+double ceil(double x) { return (double)(int)x + 1; } 
+double fabs(double x) { return x < 0 ? -x : x; }
+double pow(double x, double y) { return 0; } // TODO
+double sqrt(double x) { return 0; }
+double sin(double x) { return 0; }
+double cos(double x) { return 0; }
+double tan(double x) { return 0; }
+double asin(double x) { return 0; }
+double acos(double x) { return 0; }
+double atan(double x) { return 0; }
+double atan2(double y, double x) { return 0; }
+double exp(double x) { return 0; }
+double log(double x) { return 0; }
+double log10(double x) { return 0; }
+double fmod(double x, double y) { return 0; }
+
+// Other
+void abort(void) {
+    // CpuDeadLoop();
+    while(1);
+}
+
+void exit(int status) {
+    // CpuDeadLoop();
+    while(1);
+}
+
+// Global gBS
+EFI_BOOT_SERVICES *gBS = NULL;
+int _fltused = 0;
+
+// Stack probe (needed for MSVC ABI)
+void __chkstk(void) { return; }
+
+// Memory functions
+#undef memset
+#undef memcpy
+#undef memcmp
+
+void *memset(void *s, int c, size_t n) {
+    unsigned char *p = s;
+    while (n--) {
+        *p++ = (unsigned char)c;
+    }
+    return s;
+}
+
+void *memcpy(void *dest, const void *src, size_t n) {
+    char *d = dest;
+    const char *s = src;
+    while (n--) {
+        *d++ = *s++;
+    }
+    return dest;
+}
+
+int memcmp(const void *s1, const void *s2, size_t n) {
+    const unsigned char *p1 = s1, *p2 = s2;
+    while (n--) {
+        if (*p1 != *p2) {
+            return *p1 - *p2;
+        }
+        p1++;
+        p2++;
+    }
+    return 0;
+}
+
+void *SetMem(void *Buffer, UINTN Length, UINT8 Value) {
+    return memset(Buffer, Value, Length);
+}
+
+void *CopyMem(void *Destination, const void *Source, UINTN Length) {
+    return memcpy(Destination, Source, Length);
+}
+
+INTN CompareMem(const void *Destination, const void *Source, UINTN Length) {
+    return (INTN)memcmp(Destination, Source, Length); 
+}
+
+// String functions
+UINTN AsciiStrnLenS(const CHAR8 *String, UINTN MaxSize) {
+    UINTN len = 0;
+    while (len < MaxSize && String[len] != 0) {
+        len++;
+    }
+    return len;
+}
+
+INTN AsciiStrnCmp(const CHAR8 *FirstString, const CHAR8 *SecondString, UINTN Length) {
+    if (Length == 0) return 0;
+    while (Length > 0 && *FirstString && *SecondString) {
+        if (*FirstString != *SecondString) break;
+        FirstString++;
+        SecondString++;
+        Length--;
+    }
+    if (Length == 0) return 0;
+    return *FirstString - *SecondString;
+}
+
+int strcmp(const char *s1, const char *s2) {
+    while (*s1 && (*s1 == *s2)) {
+        s1++;
+        s2++;
+    }
+    return *(const unsigned char *)s1 - *(const unsigned char *)s2;
+}
+
+// Print functions
+// Minimal vsnprintf implementation
+#include <stdarg.h>
+static void simple_append(char **str, size_t *size, char c) {
+    if (*size > 1) {
+        **str = c;
+        (*str)++;
+        (*size)--;
+    }
+}
+
+static void simple_append_str(char **str, size_t *size, const char *s) {
+    while (*s) {
+        simple_append(str, size, *s++);
+    }
+}
+
+static void simple_append_hex(char **str, size_t *size, UINT64 num) {
+    char buf[17];
+    const char *digits = "0123456789ABCDEF";
+    int i = 0;
+    if (num == 0) {
+        simple_append(str, size, '0');
+        return;
+    }
+    while (num > 0) {
+        buf[i++] = digits[num % 16];
+        num /= 16;
+    }
+    while (i > 0) {
+        simple_append(str, size, buf[--i]);
+    }
+}
+
+static void simple_append_dec(char **str, size_t *size, INT64 num) {
+    char buf[21];
+    int i = 0;
+    int neg = 0;
+    if (num < 0) {
+        neg = 1;
+        num = -num;
+    }
+    if (num == 0) {
+        simple_append(str, size, '0');
+        return;
+    }
+    while (num > 0) {
+        buf[i++] = (num % 10) + '0';
+        num /= 10;
+    }
+    if (neg) simple_append(str, size, '-');
+    while (i > 0) {
+        simple_append(str, size, buf[--i]);
+    }
+}
+
+UINTN AsciiVSPrint(CHAR8 *StartOfBuffer, UINTN BufferSize, CONST CHAR8 *FormatString, VA_LIST Marker) {
+    char *str = StartOfBuffer;
+    size_t size = BufferSize;
+    const char *fmt = FormatString;
+    
+    while (*fmt) {
+        if (*fmt == '%') {
+            fmt++;
+            if (*fmt == 's') {
+                char *s = VA_ARG(Marker, char*);
+                simple_append_str(&str, &size, s ? s : "(null)");
+            } else if (*fmt == 'd') {
+                int d = VA_ARG(Marker, int);
+                simple_append_dec(&str, &size, d);
+            } else if (*fmt == 'x' || *fmt == 'X') {
+                unsigned int x = VA_ARG(Marker, unsigned int);
+                simple_append_hex(&str, &size, x);
+            } else if (*fmt == 'p') {
+                void *p = VA_ARG(Marker, void*);
+                simple_append_hex(&str, &size, (UINT64)p);
+            } else if (*fmt == '%') {
+                simple_append(&str, &size, '%');
+            } else {
+                simple_append(&str, &size, '%');
+                simple_append(&str, &size, *fmt);
+            }
+        } else {
+            simple_append(&str, &size, *fmt);
+        }
+        fmt++;
+    }
+    *str = 0;
+    return (UINTN)(str - StartOfBuffer);
+}
+
+UINTN AsciiSPrint(CHAR8 *StartOfBuffer, UINTN BufferSize, CONST CHAR8 *FormatString, ...) {
+    VA_LIST Marker;
+    VA_START(Marker, FormatString);
+    UINTN ret = AsciiVSPrint(StartOfBuffer, BufferSize, FormatString, Marker);
+    VA_END(Marker);
+    return ret;
+}
+
+// Time functions
+struct tm *gmtime(const time_t *timep) { return NULL; }
+time_t mktime(struct tm *tm) { return 0; }
+int sscanf(const char *str, const char *format, ...) { return 0; }
+
+time_t time(time_t *tloc) { return 0; }
+double difftime(time_t time1, time_t time0) { return (double)(time1 - time0); }
+double cbrt(double x) { return 0; }
+double log2(double x) { return 0; }
+double trunc(double x) { return (double)(int)x; }
+
+
+// Needed for CrtLibSupport headers to work?
+// They use VA_LIST etc which are in Base.h
--- a/efi-port/core/src/efi.c
+++ b/efi-port/core/src/efi.c
@@ -0,0 +1,12 @@
+#include "efi.h"
+#include "main.h"
+
+extern EFI_BOOT_SERVICES *gBS;
+
+EFI_STATUS EFIAPI efi_main(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable) {
+    gBS = SystemTable->BootServices;
+    
+    // Initialize standard library (if needed)
+    // ...
+    return kernel_main(SystemTable);
+}
--- a/efi-port/core/src/efi.h
+++ b/efi-port/core/src/efi.h
@@ -0,0 +1,13 @@
+#ifndef EFI_H
+#define EFI_H
+
+#ifndef MDE_CPU_X64
+#define MDE_CPU_X64
+#endif
+
+#include <Uefi.h>
+
+// Map legacy names if needed, or update main.c
+typedef EFI_SYSTEM_TABLE EfiSystemTable;
+
+#endif
--- a/efi-port/core/src/main.c
+++ b/efi-port/core/src/main.c
@@ -0,0 +1,57 @@
+#include "main.h" 
+#include "efi.h" 
+#include "duktape.h"
+
+duk_context *ctx;
+EFI_SYSTEM_TABLE* systemTable;
+
+void halt() {
+  for (;;) {}
+}
+
+void ascii_to_utf16(const char *ascii, CHAR16 *utf16) {
+  while (*ascii) {
+    *utf16++ = (CHAR16)*ascii++;
+  }
+  *utf16 = 0;
+}
+
+duk_ret_t native_log(duk_context *ctx) {
+  CHAR16 buffer[256];
+  ascii_to_utf16(duk_safe_to_string(ctx, 0), buffer);
+  systemTable->ConOut->OutputString(systemTable->ConOut, buffer);
+  
+  return 0;
+}
+
+int kernel_main(EFI_SYSTEM_TABLE *st) {
+  systemTable = st;
+  ctx = duk_create_heap_default();
+
+  duk_push_c_function(ctx, native_log, 1);
+  duk_put_global_string(ctx, "$log");
+
+  duk_push_object(ctx);
+
+  duk_push_pointer(ctx, (void *)st);
+  duk_put_prop_string(ctx, -2, "st");
+
+  duk_put_global_string(ctx, "$st");
+
+  duk_push_string(ctx, "$log($st.st.ConOut)");
+  duk_int_t returnCode = duk_peval(ctx);
+
+  if (returnCode != 0)
+  {
+    duk_safe_to_stacktrace(ctx, -1);
+    CHAR16 buffer[256];
+    ascii_to_utf16(duk_safe_to_string(ctx, -1), buffer);
+    systemTable->ConOut->OutputString(systemTable->ConOut, buffer);
+  }
+
+  duk_pop(ctx);
+
+  halt();
+
+  return 0;
+}
--- a/efi-port/core/src/main.h
+++ b/efi-port/core/src/main.h
@@ -0,0 +1,8 @@
+#include "efi.h"
+
+#ifndef MAIN_H
+#define MAIN_H
+
+int kernel_main(EFI_SYSTEM_TABLE* systemTable);
+
+#endif
--- a/efi-port/edk2
+++ b/efi-port/edk2
--- a/efi-port/scripts/build_c.sh
+++ b/efi-port/scripts/build_c.sh
@@ -0,0 +1,11 @@
+mkdir -p out
+mkdir -p out/core
+mkdir -p out/img/EFI/BOOT
+mkdir -p out/lib
+
+clang -target x86_64-pc-win32-coff -fno-stack-protector -fshort-wchar -mno-red-zone -Iedk2/MdePkg/Include -Iedk2/MdePkg/Include/X64 -c core/src/efi.c -o out/core/efi.o
+clang -target x86_64-pc-win32-coff -fno-stack-protector -fshort-wchar -mno-red-zone -Icore/compat -Icore/lib/duktape/src -Iedk2/MdePkg/Include -Iedk2/MdePkg/Include/X64 -Iedk2/CryptoPkg/Library/Include -c core/src/main.c -o out/core/main.o
+clang -target x86_64-pc-win32-coff -fno-stack-protector -fshort-wchar -mno-red-zone -DDUK_F_GENERIC -U_WIN32 -UWIN32 -U_WIN64 -UWIN64 -Icore/compat -Iedk2/MdePkg/Include -Iedk2/MdePkg/Include/X64 -Iedk2/CryptoPkg/Library/Include -c core/lib/duktape/src/duktape.c -o out/lib/duktape.o
+clang -target x86_64-pc-win32-coff -fno-stack-protector -fshort-wchar -mno-red-zone -Icore/compat -Iedk2/MdePkg/Include -Iedk2/MdePkg/Include/X64 -Iedk2/CryptoPkg/Library/Include -c core/src/compat.c -o out/core/compat.o
+
+lld-link -filealign:16 -subsystem:efi_application -nodefaultlib -dll -entry:efi_main out/core/main.o out/core/efi.o out/lib/duktape.o out/core/compat.o -out:out/img/EFI/BOOT/BOOTX64.EFI
--- a/efi-port/scripts/out_to_iso.sh
+++ b/efi-port/scripts/out_to_iso.sh
@@ -0,0 +1,19 @@
+# Create a FAT12 image
+dd if=/dev/zero of=out/fat.img bs=1k count=1440
+mformat -i out/fat.img -f 1440 ::
+
+# Create EFI directory structure
+mmd -i out/fat.img ::/EFI
+mmd -i out/fat.img ::/EFI/BOOT
+
+# Copy the EFI application
+mcopy -i out/fat.img out/img/EFI/BOOT/BOOTX64.EFI ::/EFI/BOOT
+
+# Verify content
+echo "Verifying FAT image content:"
+mdir -i out/fat.img -/ ::
+
+# Create the ISO
+# -e specifies the boot image (the FAT image)
+# -no-emul-boot is required for UEFI
+xorriso -as mkisofs -R -f -e /fat.img -no-emul-boot -volid LintsEFI -o out/lints.iso out/img out/fat.img
--- a/efi-port/scripts/run_vbox.sh
+++ b/efi-port/scripts/run_vbox.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+VM_NAME="LintsEFI"
+ISO_PATH="$(pwd)/out/lints.iso"
+
+# Check if VM exists
+if VBoxManage list vms | grep -q "\"$VM_NAME\""; then
+    echo "VM '$VM_NAME' already exists."
+else
+    echo "Creating VM '$VM_NAME'..."
+    VBoxManage createvm --name "$VM_NAME" --ostype "Other_64" --register
+    VBoxManage modifyvm "$VM_NAME" --memory 128 --firmware efi --graphicscontroller vmsvga
+    VBoxManage storagectl "$VM_NAME" --name "IDE Controller" --add ide
+fi
+
+# Attach ISO (force unmount first just in case)
+echo "Attaching ISO..."
+VBoxManage storageattach "$VM_NAME" --storagectl "IDE Controller" --port 0 --device 0 --type dvddrive --medium emptydrive --forceunmount
+VBoxManage storageattach "$VM_NAME" --storagectl "IDE Controller" --port 0 --device 0 --type dvddrive --medium "$ISO_PATH"
+
+# Start VM
+echo "Starting VM..."
+VBoxManage startvm "$VM_NAME"
--- a/scripts/build-kernel.sh
+++ b/scripts/build-kernel.sh
@@ -37,6 +37,7 @@ python3 scripts/embed_js.py build/index.js > "$BUILD_DIR/embedded_js.h"

 # Compiler flags
 CFLAGS="-m32 -march=i686 -ffreestanding -nostdlib -fno-builtin"
+CFLAGS="$CFLAGS -mno-sse -mno-sse2 -mno-mmx -mno-3dnow"
 CFLAGS="$CFLAGS -I$PICOLIBC_INSTALL/include"
 CFLAGS="$CFLAGS -I./lib/duktape/src"
 CFLAGS="$CFLAGS -I./src/lib"
@@ -56,10 +57,19 @@ echo "=== Building kernel with picolibc ==="
 echo "Assembling boot code..."
 nasm -f elf32 src/boot/kernel.asm -o "$BUILD_DIR/kasm.o"

+# Build interrupt assembly
+echo "Assembling interrupt handlers..."
+nasm -f elf32 src/kernel/interrupt/interrupt.asm -o "$BUILD_DIR/interrupt.o"
+
 # Build duktape
 echo "Building Duktape..."
 gcc $CFLAGS -c lib/duktape/src/duktape.c -o "$BUILD_DIR/duktape.o"

+# Build interrupt system
+echo "Building interrupt system..."
+gcc $CFLAGS -c src/kernel/interrupt/idt.c -o "$BUILD_DIR/idt.o"
+gcc $CFLAGS -c src/kernel/interrupt/isr.c -o "$BUILD_DIR/isr.o"
+
 # Build kernel
 echo "Building kernel..."
 gcc $CFLAGS -c src/kernel/kernel.c -o "$BUILD_DIR/kc.o"
@@ -72,6 +82,9 @@ gcc $CFLAGS -c src/lib/syscalls.c -o "$BUILD_DIR/syscalls.o"
 echo "Linking kernel..."
 ld $LDFLAGS -T src/link.ld -o "$OUT_DIR/kernel" \
    "$BUILD_DIR/kasm.o" \
+    "$BUILD_DIR/interrupt.o" \
+    "$BUILD_DIR/idt.o" \
+    "$BUILD_DIR/isr.o" \
    "$BUILD_DIR/kc.o" \
    "$BUILD_DIR/duktape.o" \
    "$BUILD_DIR/syscalls.o" \
--- a/scripts/run-kernel.sh
+++ b/scripts/run-kernel.sh
@@ -1,3 +1,69 @@
 ./scripts/build.sh

-qemu-system-i386 -serial stdio -kernel "build/out/kernel"
+# Create disk image if it doesn't exist
+if [ ! -f hdd.img ]; then
+  echo "Creating disk image..."
+  qemu-img create -f raw hdd.img 10M
+  
+  # Create a proper MBR partition table with one FAT32 partition
+  # Using fdisk commands
+  (
+    echo o      # Create new DOS partition table
+    echo n      # New partition
+    echo p      # Primary partition
+    echo 1      # Partition number 1
+    echo        # Default first sector
+    echo        # Default last sector (use all space)
+    echo t      # Change partition type
+    echo c      # FAT32 LBA
+    echo a      # Make bootable
+    echo w      # Write changes
+  ) | fdisk hdd.img >/dev/null 2>&1
+  
+  # Format the partition as FAT32
+  # First, get the partition offset using sfdisk
+  OFFSET=$(sfdisk -l hdd.img 2>/dev/null | grep 'hdd.img1' | awk '{print $2}')
+  
+  # Check if OFFSET is empty or non-numeric and set default if needed
+  if [ -z "$OFFSET" ] || ! [[ "$OFFSET" =~ ^[0-9]+$ ]]; then
+    OFFSET=2048  # Default first sector for most partition tables
+  fi
+  
+  # Create FAT32 filesystem on the partition
+  echo "Formatting partition as FAT32..."
+  mkfs.vfat -F 32 -n "TESTDISK" --offset $OFFSET hdd.img
+  
+  echo "Disk image created with FAT32 partition"
+fi
+
+# Get the partition offset for file operations
+OFFSET=$(sfdisk -l hdd.img 2>/dev/null | grep 'hdd.img1' | awk '{print $2}')
+if [ -z "$OFFSET" ] || ! [[ "$OFFSET" =~ ^[0-9]+$ ]]; then
+  OFFSET=2048
+fi
+
+# Copy test-hdd contents into the disk image
+if [ -d "test-hdd" ]; then
+  echo "Copying test-hdd contents to disk image..."
+  
+  # Use mcopy to copy files to the FAT32 partition
+  MTOOLS_SKIP_CHECK=1 mcopy -i hdd.img@@$((OFFSET * 512)) -s test-hdd/* :: || {
+    echo "Warning: mcopy failed, retrying individual files..."
+    for file in test-hdd/*; do
+      if [ -f "$file" ]; then
+        MTOOLS_SKIP_CHECK=1 mcopy -i hdd.img@@$((OFFSET * 512)) "$file" :: && echo "Copied $(basename "$file")"
+      fi
+    done
+  }
+fi
+
+# Create CD-ROM image if it doesn't exist
+if [ ! -f cdrom.iso ]; then
+    mkdir -p /tmp/cdrom_content
+    echo "Test CD-ROM" > /tmp/cdrom_content/readme.txt
+    genisoimage -o cdrom.iso -V "TESTCD" -r -J /tmp/cdrom_content 2>/dev/null || touch cdrom.iso
+fi
+
+qemu-system-i386 -serial stdio -kernel "build/out/kernel" \
+  -drive file=hdd.img,if=ide,format=raw,index=0,media=disk \
+  -drive file=cdrom.iso,if=ide,format=raw,index=1,media=cdrom
--- a/src/boot/kernel.asm
+++ b/src/boot/kernel.asm
@@ -8,10 +8,18 @@ section .text

 global start
 extern kmain	;kmain is defined in the kernel.c file
+extern __stack_top

 start:
-	cli  ; stop interrupts
+	cli  ; stop interrupts during boot
+	mov esp, __stack_top
+	
+	; Initialize FPU (x87)
+	finit  ; Initialize FPU to default state

 	call kmain
+	; Note: kmain will call sti to enable interrupts after IDT is set up

-	hlt ; halt the CPU
+hang:
+	hlt ; halt the CPU
+	jmp hang
--- a/src/kernel/interrupt/idt.c
+++ b/src/kernel/interrupt/idt.c
@@ -0,0 +1,22 @@
+#include "idt.h"
+
+/* Define the IDT and IDT register here */
+idt_gate_t idt[IDT_ENTRIES];
+idt_register_t idt_reg;
+
+void set_idt_gate(int n, u32 handler)
+{
+  idt[n].low_offset = low_16(handler);
+  idt[n].sel = KERNEL_CS;
+  idt[n].always0 = 0;
+  idt[n].flags = 0x8E;
+  idt[n].high_offset = high_16(handler);
+}
+
+void set_idt()
+{
+  idt_reg.base = (u32)&idt;
+  idt_reg.limit = IDT_ENTRIES * sizeof(idt_gate_t) - 1;
+  /* Don't make the mistake of loading &idt -- always load &idt_reg */
+  __asm__ __volatile__("lidtl (%0)" : : "r"(&idt_reg));
+}
--- a/src/kernel/interrupt/idt.h
+++ b/src/kernel/interrupt/idt.h
@@ -0,0 +1,40 @@
+#ifndef IDT_H
+#define IDT_H
+
+#include "types.h"
+
+/* Segment selectors */
+#define KERNEL_CS 0x08
+
+/* How every interrupt gate (handler) is defined */
+typedef struct
+{
+  u16 low_offset; /* Lower 16 bits of handler function address */
+  u16 sel;        /* Kernel segment selector */
+  u8 always0;
+  /* First byte
+   * Bit 7: "Interrupt is present"
+   * Bits 6-5: Privilege level of caller (0=kernel..3=user)
+   * Bit 4: Set to 0 for interrupt gates
+   * Bits 3-0: bits 1110 = decimal 14 = "32 bit interrupt gate" */
+  u8 flags;
+  u16 high_offset; /* Higher 16 bits of handler function address */
+} __attribute__((packed)) idt_gate_t;
+
+/* A pointer to the array of interrupt handlers.
+ * Assembly instruction 'lidt' will read it */
+typedef struct
+{
+  u16 limit;
+  u32 base;
+} __attribute__((packed)) idt_register_t;
+
+#define IDT_ENTRIES 256
+extern idt_gate_t idt[IDT_ENTRIES];
+extern idt_register_t idt_reg;
+
+/* Functions implemented in idt.c */
+void set_idt_gate(int n, u32 handler);
+void set_idt();
+
+#endif
--- a/src/kernel/interrupt/interrupt.asm
+++ b/src/kernel/interrupt/interrupt.asm
@@ -0,0 +1,446 @@
+; Defined in isr.c
+[extern isr_handler]
+[extern irq_handler]
+
+; Common ISR code
+isr_common_stub:
+    ; 1. Save CPU state
+	pusha ; Pushes edi,esi,ebp,esp,ebx,edx,ecx,eax
+	mov ax, ds ; Lower 16-bits of eax = ds.
+	push eax ; save the data segment descriptor
+	mov ax, 0x10  ; kernel data segment descriptor
+	mov ds, ax
+	mov es, ax
+	mov fs, ax
+	mov gs, ax
+	
+    ; 2. Call C handler - pass pointer to registers_t struct on stack
+	push esp
+	call isr_handler
+	add esp, 4
+	
+    ; 3. Restore state
+	pop eax 
+	mov ds, ax
+	mov es, ax
+	mov fs, ax
+	mov gs, ax
+	popa
+	add esp, 8 ; Cleans up the pushed error code and pushed ISR number
+	iret ; pops 5 things at once: CS, EIP, EFLAGS, SS, and ESP (and restores interrupt flag)
+
+; Common IRQ code
+irq_common_stub:
+    ; 1. Save CPU state
+	pusha
+	mov ax, ds
+	push eax
+	mov ax, 0x10
+	mov ds, ax
+	mov es, ax
+	mov fs, ax
+	mov gs, ax
+
+    ; 2. Call C handler - pass pointer to registers_t struct on stack
+	push esp
+	call irq_handler
+	add esp, 4
+
+    ; 3. Restore state
+	pop ebx
+	mov ds, bx
+	mov es, bx
+	mov fs, bx
+	mov gs, bx
+	popa
+	add esp, 8
+	iret ; iret restores the interrupt flag automatically from saved EFLAGS
+	
+; We don't get information about which interrupt was caller
+; when the handler is run, so we will need to have a different handler
+; for every interrupt.
+; Furthermore, some interrupts push an error code onto the stack but others
+; don't, so we will push a dummy error code for those which don't, so that
+; we have a consistent stack for all of them.
+
+; First make the ISRs global
+global isr0
+global isr1
+global isr2
+global isr3
+global isr4
+global isr5
+global isr6
+global isr7
+global isr8
+global isr9
+global isr10
+global isr11
+global isr12
+global isr13
+global isr14
+global isr15
+global isr16
+global isr17
+global isr18
+global isr19
+global isr20
+global isr21
+global isr22
+global isr23
+global isr24
+global isr25
+global isr26
+global isr27
+global isr28
+global isr29
+global isr30
+global isr31
+
+; 0: Divide By Zero Exception
+isr0:
+    cli
+    push byte 0
+    push byte 0
+    jmp isr_common_stub
+
+; 1: Debug Exception
+isr1:
+    cli
+    push byte 0
+    push byte 1
+    jmp isr_common_stub
+
+; 2: Non Maskable Interrupt Exception
+isr2:
+    cli
+    push byte 0
+    push byte 2
+    jmp isr_common_stub
+
+; 3: Int 3 Exception
+isr3:
+    cli
+    push byte 0
+    push byte 3
+    jmp isr_common_stub
+
+; 4: INTO Exception
+isr4:
+    cli
+    push byte 0
+    push byte 4
+    jmp isr_common_stub
+
+; 5: Out of Bounds Exception
+isr5:
+    cli
+    push byte 0
+    push byte 5
+    jmp isr_common_stub
+
+; 6: Invalid Opcode Exception
+isr6:
+    cli
+    push byte 0
+    push byte 6
+    jmp isr_common_stub
+
+; 7: Coprocessor Not Available Exception
+isr7:
+    cli
+    push byte 0
+    push byte 7
+    jmp isr_common_stub
+
+; 8: Double Fault Exception (With Error Code!)
+isr8:
+    cli
+    push byte 8
+    jmp isr_common_stub
+
+; 9: Coprocessor Segment Overrun Exception
+isr9:
+    cli
+    push byte 0
+    push byte 9
+    jmp isr_common_stub
+
+; 10: Bad TSS Exception (With Error Code!)
+isr10:
+    cli
+    push byte 10
+    jmp isr_common_stub
+
+; 11: Segment Not Present Exception (With Error Code!)
+isr11:
+    cli
+    push byte 11
+    jmp isr_common_stub
+
+; 12: Stack Fault Exception (With Error Code!)
+isr12:
+    cli
+    push byte 12
+    jmp isr_common_stub
+
+; 13: General Protection Fault Exception (With Error Code!)
+isr13:
+    cli
+    push byte 13
+    jmp isr_common_stub
+
+; 14: Page Fault Exception (With Error Code!)
+isr14:
+    cli
+    push byte 14
+    jmp isr_common_stub
+
+; 15: Reserved Exception
+isr15:
+    cli
+    push byte 0
+    push byte 15
+    jmp isr_common_stub
+
+; 16: Floating Point Exception
+isr16:
+    cli
+    push byte 0
+    push byte 16
+    jmp isr_common_stub
+
+; 17: Alignment Check Exception
+isr17:
+    cli
+    push byte 0
+    push byte 17
+    jmp isr_common_stub
+
+; 18: Machine Check Exception
+isr18:
+    cli
+    push byte 0
+    push byte 18
+    jmp isr_common_stub
+
+; 19: Reserved
+isr19:
+    cli
+    push byte 0
+    push byte 19
+    jmp isr_common_stub
+
+; 20: Reserved
+isr20:
+    cli
+    push byte 0
+    push byte 20
+    jmp isr_common_stub
+
+; 21: Reserved
+isr21:
+    cli
+    push byte 0
+    push byte 21
+    jmp isr_common_stub
+
+; 22: Reserved
+isr22:
+    cli
+    push byte 0
+    push byte 22
+    jmp isr_common_stub
+
+; 23: Reserved
+isr23:
+    cli
+    push byte 0
+    push byte 23
+    jmp isr_common_stub
+
+; 24: Reserved
+isr24:
+    cli
+    push byte 0
+    push byte 24
+    jmp isr_common_stub
+
+; 25: Reserved
+isr25:
+    cli
+    push byte 0
+    push byte 25
+    jmp isr_common_stub
+
+; 26: Reserved
+isr26:
+    cli
+    push byte 0
+    push byte 26
+    jmp isr_common_stub
+
+; 27: Reserved
+isr27:
+    cli
+    push byte 0
+    push byte 27
+    jmp isr_common_stub
+
+; 28: Reserved
+isr28:
+    cli
+    push byte 0
+    push byte 28
+    jmp isr_common_stub
+
+; 29: Reserved
+isr29:
+    cli
+    push byte 0
+    push byte 29
+    jmp isr_common_stub
+
+; 30: Reserved
+isr30:
+    cli
+    push byte 0
+    push byte 30
+    jmp isr_common_stub
+
+; 31: Reserved
+isr31:
+    cli
+    push byte 0
+    push byte 31
+    jmp isr_common_stub
+
+; IRQ handlers
+global irq0
+global irq1
+global irq2
+global irq3
+global irq4
+global irq5
+global irq6
+global irq7
+global irq8
+global irq9
+global irq10
+global irq11
+global irq12
+global irq13
+global irq14
+global irq15
+
+; IRQ 0: System Timer
+irq0:
+    cli
+    push byte 0
+    push byte 32
+    jmp irq_common_stub
+
+; IRQ 1: Keyboard
+irq1:
+    cli
+    push byte 0
+    push byte 33
+    jmp irq_common_stub
+
+; IRQ 2: Cascade (never raised)
+irq2:
+    cli
+    push byte 0
+    push byte 34
+    jmp irq_common_stub
+
+; IRQ 3: COM2
+irq3:
+    cli
+    push byte 0
+    push byte 35
+    jmp irq_common_stub
+
+; IRQ 4: COM1
+irq4:
+    cli
+    push byte 0
+    push byte 36
+    jmp irq_common_stub
+
+; IRQ 5: LPT2
+irq5:
+    cli
+    push byte 0
+    push byte 37
+    jmp irq_common_stub
+
+; IRQ 6: Floppy Disk
+irq6:
+    cli
+    push byte 0
+    push byte 38
+    jmp irq_common_stub
+
+; IRQ 7: LPT1
+irq7:
+    cli
+    push byte 0
+    push byte 39
+    jmp irq_common_stub
+
+; IRQ 8: CMOS Real-time Clock
+irq8:
+    cli
+    push byte 0
+    push byte 40
+    jmp irq_common_stub
+
+; IRQ 9: Free for peripherals
+irq9:
+    cli
+    push byte 0
+    push byte 41
+    jmp irq_common_stub
+
+; IRQ 10: Free for peripherals
+irq10:
+    cli
+    push byte 0
+    push byte 42
+    jmp irq_common_stub
+
+; IRQ 11: Free for peripherals
+irq11:
+    cli
+    push byte 0
+    push byte 43
+    jmp irq_common_stub
+
+; IRQ 12: PS/2 Mouse
+irq12:
+    cli
+    push byte 0
+    push byte 44
+    jmp irq_common_stub
+
+; IRQ 13: FPU
+irq13:
+    cli
+    push byte 0
+    push byte 45
+    jmp irq_common_stub
+
+; IRQ 14: Primary ATA Hard Disk
+irq14:
+    cli
+    push byte 0
+    push byte 46
+    jmp irq_common_stub
+
+; IRQ 15: Secondary ATA Hard Disk
+irq15:
+    cli
+    push byte 0
+    push byte 47
+    jmp irq_common_stub
--- a/src/kernel/interrupt/isr.c
+++ b/src/kernel/interrupt/isr.c
@@ -0,0 +1,317 @@
+#include "isr.h"
+#include "idt.h"
+
+/* Port I/O functions */
+static inline void outb(u16 port, u8 val)
+{
+  __asm__ volatile("outb %0, %1" : : "a"(val), "Nd"(port));
+}
+
+static inline u8 inb(u16 port)
+{
+  u8 ret;
+  __asm__ volatile("inb %1, %0" : "=a"(ret) : "Nd"(port));
+  return ret;
+}
+
+/* PIC (Programmable Interrupt Controller) constants */
+#define PIC1_COMMAND 0x20
+#define PIC1_DATA 0x21
+#define PIC2_COMMAND 0xA0
+#define PIC2_DATA 0xA1
+#define PIC_EOI 0x20
+
+/* Array to store custom IRQ handlers */
+static irq_handler_t irq_handlers[16] = {0};
+
+/* Can't do this with a loop because we need the address
+ * of the function names */
+void isr_install()
+{
+  set_idt_gate(0, (u32)isr0);
+  set_idt_gate(1, (u32)isr1);
+  set_idt_gate(2, (u32)isr2);
+  set_idt_gate(3, (u32)isr3);
+  set_idt_gate(4, (u32)isr4);
+  set_idt_gate(5, (u32)isr5);
+  set_idt_gate(6, (u32)isr6);
+  set_idt_gate(7, (u32)isr7);
+  set_idt_gate(8, (u32)isr8);
+  set_idt_gate(9, (u32)isr9);
+  set_idt_gate(10, (u32)isr10);
+  set_idt_gate(11, (u32)isr11);
+  set_idt_gate(12, (u32)isr12);
+  set_idt_gate(13, (u32)isr13);
+  set_idt_gate(14, (u32)isr14);
+  set_idt_gate(15, (u32)isr15);
+  set_idt_gate(16, (u32)isr16);
+  set_idt_gate(17, (u32)isr17);
+  set_idt_gate(18, (u32)isr18);
+  set_idt_gate(19, (u32)isr19);
+  set_idt_gate(20, (u32)isr20);
+  set_idt_gate(21, (u32)isr21);
+  set_idt_gate(22, (u32)isr22);
+  set_idt_gate(23, (u32)isr23);
+  set_idt_gate(24, (u32)isr24);
+  set_idt_gate(25, (u32)isr25);
+  set_idt_gate(26, (u32)isr26);
+  set_idt_gate(27, (u32)isr27);
+  set_idt_gate(28, (u32)isr28);
+  set_idt_gate(29, (u32)isr29);
+  set_idt_gate(30, (u32)isr30);
+  set_idt_gate(31, (u32)isr31);
+
+  set_idt(); // Load with ASM
+}
+
+/* Remap the PIC to avoid conflicts with CPU exceptions */
+static void pic_remap(void)
+{
+  // Start initialization
+  outb(PIC1_COMMAND, 0x11);
+  outb(PIC2_COMMAND, 0x11);
+
+  // Set vector offsets (IRQs 0-7 -> interrupts 32-39, IRQs 8-15 -> interrupts 40-47)
+  outb(PIC1_DATA, 0x20);
+  outb(PIC2_DATA, 0x28);
+
+  // Tell master PIC there's a slave PIC at IRQ2
+  outb(PIC1_DATA, 0x04);
+  // Tell slave PIC its cascade identity
+  outb(PIC2_DATA, 0x02);
+
+  // Set to 8086 mode
+  outb(PIC1_DATA, 0x01);
+  outb(PIC2_DATA, 0x01);
+
+  // Mask all interrupts initially
+  outb(PIC1_DATA, 0xFF);
+  outb(PIC2_DATA, 0xFF);
+}
+
+/* Install IRQ handlers */
+void irq_install()
+{
+  // Remap the PIC
+  pic_remap();
+
+  // Install IRQ handlers (32-47)
+  set_idt_gate(32, (u32)irq0);
+  set_idt_gate(33, (u32)irq1);
+  set_idt_gate(34, (u32)irq2);
+  set_idt_gate(35, (u32)irq3);
+  set_idt_gate(36, (u32)irq4);
+  set_idt_gate(37, (u32)irq5);
+  set_idt_gate(38, (u32)irq6);
+  set_idt_gate(39, (u32)irq7);
+  set_idt_gate(40, (u32)irq8);
+  set_idt_gate(41, (u32)irq9);
+  set_idt_gate(42, (u32)irq10);
+  set_idt_gate(43, (u32)irq11);
+  set_idt_gate(44, (u32)irq12);
+  set_idt_gate(45, (u32)irq13);
+  set_idt_gate(46, (u32)irq14);
+  set_idt_gate(47, (u32)irq15);
+
+  set_idt(); // Reload IDT
+}
+
+/* To print the message which defines every exception */
+char *exception_messages[] = {
+    "Division By Zero",
+    "Debug",
+    "Non Maskable Interrupt",
+    "Breakpoint",
+    "Into Detected Overflow",
+    "Out of Bounds",
+    "Invalid Opcode",
+    "No Coprocessor",
+
+    "Double Fault",
+    "Coprocessor Segment Overrun",
+    "Bad TSS",
+    "Segment Not Present",
+    "Stack Fault",
+    "General Protection Fault",
+    "Page Fault",
+    "Unknown Interrupt",
+
+    "Coprocessor Fault",
+    "Alignment Check",
+    "Machine Check",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved",
+    "Reserved"};
+
+void isr_handler(registers_t *r)
+{
+  // Write exception to VGA memory
+  char *vidmem = (char *)0xb8000;
+  const char *msg = "EXCEPTION: ";
+  int i = 0;
+
+  // Clear first line
+  for (i = 0; i < 80 * 2; i++)
+  {
+    vidmem[i] = 0;
+  }
+
+  // Write message
+  i = 0;
+  while (msg[i])
+  {
+    vidmem[i * 2] = msg[i];
+    vidmem[i * 2 + 1] = 0x4F; // White on red
+    i++;
+  }
+
+  // Write exception number
+  vidmem[i * 2] = '0' + (r->int_no / 10);
+  vidmem[i * 2 + 1] = 0x4F;
+  i++;
+  vidmem[i * 2] = '0' + (r->int_no % 10);
+  vidmem[i * 2 + 1] = 0x4F;
+  i++;
+
+  // Write error code
+  vidmem[i * 2] = ' ';
+  vidmem[i * 2 + 1] = 0x4F;
+  i++;
+  vidmem[i * 2] = 'E';
+  vidmem[i * 2 + 1] = 0x4F;
+  i++;
+  vidmem[i * 2] = 'R';
+  vidmem[i * 2 + 1] = 0x4F;
+  i++;
+  vidmem[i * 2] = 'R';
+  vidmem[i * 2 + 1] = 0x4F;
+  i++;
+  vidmem[i * 2] = ':';
+  vidmem[i * 2 + 1] = 0x4F;
+  i++;
+
+  // Write error code in hex
+  u32 err = r->err_code;
+  for (int j = 7; j >= 0; j--)
+  {
+    u8 nibble = (err >> (j * 4)) & 0xF;
+    vidmem[i * 2] = nibble < 10 ? '0' + nibble : 'A' + (nibble - 10);
+    vidmem[i * 2 + 1] = 0x4F;
+    i++;
+  }
+
+  // Write EIP
+  i++;
+  vidmem[i * 2] = 'E';
+  vidmem[i * 2 + 1] = 0x4F;
+  i++;
+  vidmem[i * 2] = 'I';
+  vidmem[i * 2 + 1] = 0x4F;
+  i++;
+  vidmem[i * 2] = 'P';
+  vidmem[i * 2 + 1] = 0x4F;
+  i++;
+  vidmem[i * 2] = ':';
+  vidmem[i * 2 + 1] = 0x4F;
+  i++;
+
+  // Write EIP in hex
+  u32 eip = r->eip;
+  for (int j = 7; j >= 0; j--)
+  {
+    u8 nibble = (eip >> (j * 4)) & 0xF;
+    vidmem[i * 2] = nibble < 10 ? '0' + nibble : 'A' + (nibble - 10);
+    vidmem[i * 2 + 1] = 0x4F;
+    i++;
+  }
+
+  // Halt
+  __asm__ volatile("cli; hlt");
+  while (1)
+    ;
+}
+
+/* IRQ handler */
+void irq_handler(registers_t *r)
+{
+  // Calculate IRQ number (interrupts 32-47 map to IRQ 0-15)
+  u8 irq_no = r->int_no - 32;
+
+  // Handle spurious IRQ7 (from master PIC)
+  if (irq_no == 7)
+  {
+    // Read In-Service Register (ISR)
+    outb(PIC1_COMMAND, 0x0B);
+    u8 isr = inb(PIC1_COMMAND);
+    if (!(isr & 0x80))
+    {
+      // Spurious interrupt, don't send EOI
+      return;
+    }
+  }
+
+  // Handle spurious IRQ15 (from slave PIC)
+  if (irq_no == 15)
+  {
+    // Read In-Service Register (ISR) of slave PIC
+    outb(PIC2_COMMAND, 0x0B);
+    u8 isr = inb(PIC2_COMMAND);
+    if (!(isr & 0x80))
+    {
+      // Spurious interrupt from slave, send EOI to master only
+      outb(PIC1_COMMAND, PIC_EOI);
+      return;
+    }
+  }
+
+  // Call custom handler if registered
+  if (irq_handlers[irq_no] != 0)
+  {
+    irq_handlers[irq_no](r);
+  }
+
+  // Send EOI to PIC
+  if (r->int_no >= 40)
+  {
+    // IRQ came from slave PIC, send EOI to both
+    outb(PIC2_COMMAND, PIC_EOI);
+  }
+  outb(PIC1_COMMAND, PIC_EOI);
+}
+
+/* Register a custom IRQ handler */
+void irq_register_handler(u8 irq, irq_handler_t handler)
+{
+  if (irq < 16)
+  {
+    irq_handlers[irq] = handler;
+
+    // Unmask the IRQ on the PIC
+    u16 port;
+    u8 value;
+
+    if (irq < 8)
+    {
+      port = PIC1_DATA;
+    }
+    else
+    {
+      port = PIC2_DATA;
+      irq -= 8;
+    }
+
+    value = inb(port) & ~(1 << irq);
+    outb(port, value);
+  }
+}
--- a/src/kernel/interrupt/isr.h
+++ b/src/kernel/interrupt/isr.h
@@ -0,0 +1,78 @@
+#ifndef ISR_H
+#define ISR_H
+
+#include "types.h"
+
+/* ISRs reserved for CPU exceptions */
+extern void isr0();
+extern void isr1();
+extern void isr2();
+extern void isr3();
+extern void isr4();
+extern void isr5();
+extern void isr6();
+extern void isr7();
+extern void isr8();
+extern void isr9();
+extern void isr10();
+extern void isr11();
+extern void isr12();
+extern void isr13();
+extern void isr14();
+extern void isr15();
+extern void isr16();
+extern void isr17();
+extern void isr18();
+extern void isr19();
+extern void isr20();
+extern void isr21();
+extern void isr22();
+extern void isr23();
+extern void isr24();
+extern void isr25();
+extern void isr26();
+extern void isr27();
+extern void isr28();
+extern void isr29();
+extern void isr30();
+extern void isr31();
+
+/* IRQ handlers */
+extern void irq0();
+extern void irq1();
+extern void irq2();
+extern void irq3();
+extern void irq4();
+extern void irq5();
+extern void irq6();
+extern void irq7();
+extern void irq8();
+extern void irq9();
+extern void irq10();
+extern void irq11();
+extern void irq12();
+extern void irq13();
+extern void irq14();
+extern void irq15();
+
+/* Struct which aggregates many registers */
+typedef struct
+{
+  u32 ds;                                     /* Data segment selector */
+  u32 edi, esi, ebp, esp, ebx, edx, ecx, eax; /* Pushed by pusha. */
+  u32 int_no, err_code;                       /* Interrupt number and error code (if applicable) */
+  u32 eip, cs, eflags, useresp, ss;           /* Pushed by the processor automatically */
+} registers_t;
+
+/* Function pointer type for IRQ handlers */
+typedef void (*irq_handler_t)(registers_t *);
+
+void isr_install();
+void isr_handler(registers_t *r);
+void irq_install();
+void irq_handler(registers_t *r);
+
+/* Register a custom IRQ handler */
+void irq_register_handler(u8 irq, irq_handler_t handler);
+
+#endif
--- a/src/kernel/interrupt/types.h
+++ b/src/kernel/interrupt/types.h
@@ -0,0 +1,16 @@
+#ifndef TYPES_H
+#define TYPES_H
+
+/* Instead of using 'chars' to allocate non-character bytes,
+ * we will use these new type with no semantic meaning */
+typedef unsigned int u32;
+typedef int s32;
+typedef unsigned short u16;
+typedef short s16;
+typedef unsigned char u8;
+typedef char s8;
+
+#define low_16(address) (u16)((address) & 0xFFFF)
+#define high_16(address) (u16)(((address) >> 16) & 0xFFFF)
+
+#endif
--- a/src/kernel/kernel.c
+++ b/src/kernel/kernel.c
@@ -1,7 +1,9 @@
 #include <string.h>
 #include <stdint.h>
+#include <stdio.h>
 #include <duktape.h>
 #include "embedded_js.h"
+#include "interrupt/isr.h"

 #define WHITE_TXT 0x0F

@@ -56,6 +58,35 @@ duk_ret_t native_ptout(duk_context *ctx)
  return 0;
 }

+duk_ret_t native_byte_in(duk_context *ctx)
+{
+  // Get the port (first argument)
+  uint16_t port = (uint16_t)duk_to_uint32(ctx, 0);
+
+  uint8_t result;
+  __asm__ volatile("inb %1, %0"
+                   : "=a"(result)
+                   : "Nd"(port));
+
+  duk_push_uint(ctx, (duk_uint_t)result);
+  return 1;
+}
+
+duk_ret_t native_byte_out(duk_context *ctx)
+{
+  // Get the port (first argument)
+  uint16_t port = (uint16_t)duk_to_uint32(ctx, 0);
+
+  // Get the value to write (second argument)
+  uint8_t value = (uint8_t)duk_to_uint32(ctx, 1);
+
+  __asm__ volatile("outb %0, %1"
+                   :
+                   : "a"(value), "Nd"(port));
+
+  return 0;
+}
+
 duk_ret_t native_dword_in(duk_context *ctx)
 {
  // Get the port (first argument)
@@ -85,10 +116,557 @@ duk_ret_t native_dword_out(duk_context *ctx)
  return 0;
 }

+duk_ret_t native_word_in(duk_context *ctx)
+{
+  uint16_t port = (uint16_t)duk_to_uint32(ctx, 0);
+
+  uint16_t result;
+  __asm__ volatile("inw %1, %0"
+                   : "=a"(result)
+                   : "Nd"(port));
+
+  duk_push_uint(ctx, (duk_uint_t)result);
+  return 1;
+}
+
+duk_ret_t native_word_out(duk_context *ctx)
+{
+  uint16_t port = (uint16_t)duk_to_uint32(ctx, 0);
+
+  // Get the value to write (second argument)
+  uint16_t value = (uint16_t)duk_to_uint32(ctx, 1);
+
+  __asm__ volatile("outw %0, %1"
+                   :
+                   : "a"(value), "Nd"(port));
+
+  return 0;
+}
+
+// Global context for IRQ handlers
+duk_context *global_ctx = NULL;
+
+// Pending heaps to destroy
+duk_context *pending_heaps[16];
+int pending_heaps_count = 0;
+
+void process_pending_heaps()
+{
+  for (int i = 0; i < pending_heaps_count; i++)
+  {
+    if (pending_heaps[i] != NULL)
+    {
+      duk_destroy_heap(pending_heaps[i]);
+    }
+  }
+  pending_heaps_count = 0;
+}
+
+// JavaScript IRQ wrapper
+void js_irq_callback(registers_t *r)
+{
+  if (global_ctx == NULL)
+    return;
+
+  // Get IRQ number
+  u8 irq_no = r->int_no - 32;
+
+  // Build the key for this IRQ handler manually (avoid snprintf in interrupt)
+  char key[32] = "irq_handler_";
+  int key_len = 12;
+  if (irq_no >= 10)
+  {
+    key[key_len++] = '0' + (irq_no / 10);
+    key[key_len++] = '0' + (irq_no % 10);
+  }
+  else
+  {
+    key[key_len++] = '0' + irq_no;
+  }
+  key[key_len] = '\0';
+
+  // Call the JavaScript handler
+  duk_push_global_stash(global_ctx);
+
+  if (duk_get_prop_string(global_ctx, -1, key))
+  {
+    // Function found, call it with IRQ number
+    duk_push_uint(global_ctx, irq_no);
+
+    // Try protected call with error handler
+    duk_int_t rc = duk_pcall(global_ctx, 1);
+    duk_pop(global_ctx); // Pop result or error
+  }
+  else
+  {
+    duk_pop(global_ctx); // Pop undefined value
+  }
+
+  duk_pop(global_ctx); // Pop stash
+
+  // Process any pending heaps
+  process_pending_heaps();
+}
+
+// Native function to register IRQ from JavaScript
+duk_ret_t native_irq_register(duk_context *ctx)
+{
+  // Get the IRQ number
+  u8 irq = (u8)duk_to_uint32(ctx, 0);
+
+  // Get the handler function
+  if (!duk_is_function(ctx, 1))
+  {
+    duk_push_boolean(ctx, 0);
+    return 1;
+  }
+
+  // Store function in global stash
+  char key[32];
+  snprintf(key, sizeof(key), "irq_handler_%d", irq);
+
+  duk_push_global_stash(ctx);
+  duk_dup(ctx, 1); // Duplicate the function
+  duk_put_prop_string(ctx, -2, key);
+  duk_pop(ctx); // Pop stash
+
+  // Register the C wrapper
+  irq_register_handler(irq, js_irq_callback);
+
+  duk_push_boolean(ctx, 1);
+  return 1;
+}
+
+// Proxy getter for __oskrnl that forwards to root context's globalThis.__oskrnl
+duk_ret_t oskrnl_proxy_getter(duk_context *isolated_ctx)
+{
+  // Get the property name being accessed
+  const char *prop_name = duk_require_string(isolated_ctx, 1);
+
+  // Get the root context from the hidden symbol in the isolated context
+  duk_push_global_stash(isolated_ctx);
+  duk_get_prop_string(isolated_ctx, -1, "\xFF"
+                                        "root_ctx_ptr");
+  duk_context *root_ctx = (duk_context *)duk_get_pointer(isolated_ctx, -1);
+  duk_pop_2(isolated_ctx);
+
+  if (root_ctx == NULL)
+  {
+    duk_push_undefined(isolated_ctx);
+    return 1;
+  }
+
+  // Access globalThis.__oskrnl[prop_name] in the root context
+  duk_push_global_object(root_ctx);
+  duk_get_prop_string(root_ctx, -1, "__oskrnl");
+
+  if (!duk_is_object(root_ctx, -1))
+  {
+    duk_pop_2(root_ctx);
+    duk_push_undefined(isolated_ctx);
+    return 1;
+  }
+
+  duk_get_prop_string(root_ctx, -1, prop_name);
+
+  // If it's a function, we need to create a wrapper that calls it in root context
+  if (duk_is_function(root_ctx, -1))
+  {
+    // Store the function reference in root context's stash
+    char stash_key[128];
+    snprintf(stash_key, sizeof(stash_key), "\xFF"
+                                           "oskrnl_fn_%s",
+             prop_name);
+
+    duk_push_global_stash(root_ctx);
+    duk_dup(root_ctx, -2); // Duplicate the function
+    duk_put_prop_string(root_ctx, -2, stash_key);
+    duk_pop(root_ctx); // Pop stash
+
+    duk_pop_3(root_ctx); // Pop function, __oskrnl, globalThis
+
+    // Create a wrapper function in the isolated context
+    // Use ES5 syntax compatible with Duktape
+    const char *wrapper_code =
+        "(function(propName) {"
+        "  return function() {"
+        "    var args = Array.prototype.slice.call(arguments);"
+        "    return __oskrnl_call_native(propName, args);"
+        "  };"
+        "})";
+
+    duk_push_string(isolated_ctx, wrapper_code);
+    if (duk_peval(isolated_ctx) != 0)
+    {
+      duk_pop(isolated_ctx);
+      duk_push_undefined(isolated_ctx);
+      return 1;
+    }
+
+    duk_push_string(isolated_ctx, prop_name);
+    if (duk_pcall(isolated_ctx, 1) != 0)
+    {
+      duk_pop(isolated_ctx);
+      duk_push_undefined(isolated_ctx);
+      return 1;
+    }
+
+    return 1;
+  }
+
+  // For non-function properties, just get the value (primitives)
+  if (duk_is_number(root_ctx, -1))
+  {
+    double val = duk_get_number(root_ctx, -1);
+    duk_pop_3(root_ctx);
+    duk_push_number(isolated_ctx, val);
+    return 1;
+  }
+  else if (duk_is_string(root_ctx, -1))
+  {
+    const char *val = duk_get_string(root_ctx, -1);
+    duk_pop_3(root_ctx);
+    duk_push_string(isolated_ctx, val);
+    return 1;
+  }
+  else if (duk_is_boolean(root_ctx, -1))
+  {
+    int val = duk_get_boolean(root_ctx, -1);
+    duk_pop_3(root_ctx);
+    duk_push_boolean(isolated_ctx, val);
+    return 1;
+  }
+
+  duk_pop_3(root_ctx);
+  duk_push_undefined(isolated_ctx);
+  return 1;
+}
+
+// Callback bridge to call from root context back to isolated context
+duk_ret_t native_bridge_callback(duk_context *root_ctx)
+{
+  // Get metadata from the current function (the bridge)
+  duk_push_current_function(root_ctx);
+
+  duk_get_prop_string(root_ctx, -1, "\xFF"
+                                    "isolated_ctx_ptr");
+  duk_context *isolated_ctx = (duk_context *)duk_get_pointer(root_ctx, -1);
+  duk_pop(root_ctx);
+
+  duk_get_prop_string(root_ctx, -1, "\xFF"
+                                    "fn_id");
+  const char *fn_id = duk_get_string(root_ctx, -1);
+  duk_pop(root_ctx);
+
+  duk_pop(root_ctx); // Pop current function
+
+  if (isolated_ctx == NULL || fn_id == NULL)
+  {
+    return 0;
+  }
+
+  // Get the target function from isolated context stash
+  duk_push_global_stash(isolated_ctx);
+  duk_get_prop_string(isolated_ctx, -1, fn_id);
+  duk_remove(isolated_ctx, -2); // Remove stash
+
+  if (!duk_is_function(isolated_ctx, -1))
+  {
+    duk_pop(isolated_ctx);
+    return 0;
+  }
+
+  // Marshal arguments from root to isolated
+  duk_idx_t nargs = duk_get_top(root_ctx);
+  for (duk_idx_t i = 0; i < nargs; i++)
+  {
+    if (duk_is_number(root_ctx, i))
+    {
+      duk_push_number(isolated_ctx, duk_get_number(root_ctx, i));
+    }
+    else if (duk_is_string(root_ctx, i))
+    {
+      duk_push_string(isolated_ctx, duk_get_string(root_ctx, i));
+    }
+    else if (duk_is_boolean(root_ctx, i))
+    {
+      duk_push_boolean(isolated_ctx, duk_get_boolean(root_ctx, i));
+    }
+    else
+    {
+      duk_push_undefined(isolated_ctx);
+    }
+  }
+
+  // Call the isolated function
+  if (duk_pcall(isolated_ctx, nargs) != 0)
+  {
+    // Error occurred
+    const char *err = duk_safe_to_string(isolated_ctx, -1);
+    // k_printf((char *)"[Bridge] Error: ", 24);
+    // k_printf((char *)err, 25);
+    duk_pop(isolated_ctx); // Pop error
+    return 0;
+  }
+
+  // Marshal return value back to root
+  if (duk_is_number(isolated_ctx, -1))
+  {
+    duk_push_number(root_ctx, duk_get_number(isolated_ctx, -1));
+  }
+  else if (duk_is_string(isolated_ctx, -1))
+  {
+    duk_push_string(root_ctx, duk_get_string(isolated_ctx, -1));
+  }
+  else if (duk_is_boolean(isolated_ctx, -1))
+  {
+    duk_push_boolean(root_ctx, duk_get_boolean(isolated_ctx, -1));
+  }
+  else
+  {
+    duk_push_undefined(root_ctx);
+  }
+
+  duk_pop(isolated_ctx); // Pop result
+
+  return 1;
+}
+
+// Native helper to call root context oskrnl functions
+duk_ret_t oskrnl_call_native(duk_context *isolated_ctx)
+{
+  // Get function name and arguments
+  const char *fn_name = duk_require_string(isolated_ctx, 0);
+
+  if (!duk_is_array(isolated_ctx, 1))
+  {
+    duk_push_undefined(isolated_ctx);
+    return 1;
+  }
+
+  // Get the root context
+  duk_push_global_stash(isolated_ctx);
+  duk_get_prop_string(isolated_ctx, -1, "\xFF"
+                                        "root_ctx_ptr");
+  duk_context *root_ctx = (duk_context *)duk_get_pointer(isolated_ctx, -1);
+  duk_pop_2(isolated_ctx);
+
+  if (root_ctx == NULL)
+  {
+    duk_push_undefined(isolated_ctx);
+    return 1;
+  }
+
+  // Get the function from root context stash
+  char stash_key[128];
+  snprintf(stash_key, sizeof(stash_key), "\xFF"
+                                         "oskrnl_fn_%s",
+           fn_name);
+
+  duk_push_global_stash(root_ctx);
+  duk_get_prop_string(root_ctx, -1, stash_key);
+
+  if (!duk_is_function(root_ctx, -1))
+  {
+    duk_pop_2(root_ctx);
+    duk_push_undefined(isolated_ctx);
+    return 1;
+  }
+
+  // Transfer arguments from isolated context to root context
+  duk_size_t arg_count = duk_get_length(isolated_ctx, 1);
+
+  for (duk_size_t i = 0; i < arg_count; i++)
+  {
+    duk_get_prop_index(isolated_ctx, 1, i);
+
+    if (duk_is_number(isolated_ctx, -1))
+    {
+      duk_push_number(root_ctx, duk_get_number(isolated_ctx, -1));
+    }
+    else if (duk_is_string(isolated_ctx, -1))
+    {
+      duk_push_string(root_ctx, duk_get_string(isolated_ctx, -1));
+    }
+    else if (duk_is_boolean(isolated_ctx, -1))
+    {
+      duk_push_boolean(root_ctx, duk_get_boolean(isolated_ctx, -1));
+    }
+    else if (duk_is_function(isolated_ctx, -1))
+    {
+      // Create a bridge function in root context
+      static int bridge_cnt = 0;
+      char bridge_id[32];
+      snprintf(bridge_id, sizeof(bridge_id), "b_%d", bridge_cnt++);
+
+      // Stash isolated function
+      duk_push_global_stash(isolated_ctx);
+      duk_dup(isolated_ctx, -2);
+      duk_put_prop_string(isolated_ctx, -2, bridge_id);
+      duk_pop(isolated_ctx);
+
+      // Create bridge in root
+      duk_push_c_function(root_ctx, native_bridge_callback, DUK_VARARGS);
+
+      // Attach metadata
+      duk_push_pointer(root_ctx, isolated_ctx);
+      duk_put_prop_string(root_ctx, -2, "\xFF"
+                                        "isolated_ctx_ptr");
+
+      duk_push_string(root_ctx, bridge_id);
+      duk_put_prop_string(root_ctx, -2, "\xFF"
+                                        "fn_id");
+    }
+    else
+    {
+      duk_push_undefined(root_ctx);
+    }
+
+    duk_pop(isolated_ctx);
+  }
+
+  // Call the function in root context
+  duk_int_t rc = duk_pcall(root_ctx, arg_count);
+
+  // Transfer return value back to isolated context
+  if (rc == 0)
+  {
+    if (duk_is_number(root_ctx, -1))
+    {
+      duk_push_number(isolated_ctx, duk_get_number(root_ctx, -1));
+    }
+    else if (duk_is_string(root_ctx, -1))
+    {
+      duk_push_string(isolated_ctx, duk_get_string(root_ctx, -1));
+    }
+    else if (duk_is_boolean(root_ctx, -1))
+    {
+      duk_push_boolean(isolated_ctx, duk_get_boolean(root_ctx, -1));
+    }
+    else
+    {
+      duk_push_undefined(isolated_ctx);
+    }
+    duk_pop(root_ctx); // Pop result
+  }
+  else
+  {
+    duk_pop(root_ctx); // Pop error
+    duk_push_undefined(isolated_ctx);
+  }
+
+  duk_pop(root_ctx); // Pop stash
+
+  return 1;
+}
+
+// Native function to execute JS code in isolated context with __oskrnl access
+duk_ret_t native_isolated_exec(duk_context *ctx)
+{
+  // Get the JS code to execute
+  const char *js_code = duk_require_string(ctx, 0);
+
+  // Create a new isolated Duktape heap
+  duk_context *isolated_ctx = duk_create_heap_default();
+
+  if (isolated_ctx == NULL)
+  {
+    duk_push_boolean(ctx, 0);
+    return 1;
+  }
+
+  // Store reference to root context in isolated context's stash
+  duk_push_global_stash(isolated_ctx);
+  duk_push_pointer(isolated_ctx, ctx);
+  duk_put_prop_string(isolated_ctx, -2, "\xFF"
+                                        "root_ctx_ptr");
+  duk_pop(isolated_ctx);
+
+  // Register the native call helper in isolated context
+  duk_push_c_function(isolated_ctx, oskrnl_call_native, 2);
+  duk_put_global_string(isolated_ctx, "__oskrnl_call_native");
+
+  // Register the getter function
+  duk_push_c_function(isolated_ctx, oskrnl_proxy_getter, 2);
+  duk_put_global_string(isolated_ctx, "__oskrnl_get_prop");
+
+  // Create __oskrnl proxy object using ES6 Proxy
+  const char *proxy_code =
+      "(function() {"
+      "  var handler = {"
+      "    get: function(target, prop) {"
+      "      if (typeof prop === 'symbol') return undefined;"
+      "      return __oskrnl_get_prop(null, String(prop));"
+      "    }"
+      "  };"
+      "  return new Proxy({}, handler);"
+      "})()";
+
+  duk_push_string(isolated_ctx, proxy_code);
+
+  if (duk_peval(isolated_ctx) != 0)
+  {
+    duk_pop(isolated_ctx);
+    duk_destroy_heap(isolated_ctx);
+    duk_push_boolean(ctx, 0);
+    return 1;
+  }
+
+  duk_put_global_string(isolated_ctx, "__oskrnl");
+
+  // Execute the provided JS code
+  duk_push_string(isolated_ctx, js_code);
+  duk_int_t rc = duk_peval(isolated_ctx);
+
+  // Check for errors
+  int success = (rc == 0);
+
+  if (!success)
+  {
+    // Transfer error message back to root context for display
+    const char *err = duk_safe_to_string(isolated_ctx, -1);
+    k_printf((char *)"[Isolated] Execution error: ", 12);
+    k_printf((char *)err, 13);
+  }
+
+  duk_pop(isolated_ctx); // Pop result or error
+
+  // Clean up the isolated heap
+  // duk_destroy_heap(isolated_ctx);
+
+  // Return success/failure
+  // Return the heap pointer as a number (uint32_t)
+  duk_push_uint(ctx, (duk_uint_t)isolated_ctx);
+  return 1;
+}
+
+// Native function to destroy an isolated heap
+duk_ret_t native_destroy_isolated_heap(duk_context *ctx)
+{
+  // Get the heap pointer
+  duk_uint_t heap_ptr = duk_require_uint(ctx, 0);
+  duk_context *isolated_ctx = (duk_context *)heap_ptr;
+
+  if (isolated_ctx != NULL)
+  {
+    if (pending_heaps_count < 16)
+    {
+      pending_heaps[pending_heaps_count++] = isolated_ctx;
+    }
+  }
+
+  return 0;
+}
+
 void kmain()
 {
+  // Initialize IDT and ISRs
+  isr_install();
+  irq_install();
+
  // Initialize Duktape heap
  ctx = duk_create_heap_default();
+  global_ctx = ctx;

  // Register native memory write function
  duk_push_c_function(ctx, native_addrw, 2);
@@ -102,6 +680,14 @@ void kmain()
  duk_push_c_function(ctx, native_ptout, 2);
  duk_put_global_string(ctx, "$ptout");

+  // Register native byte in function
+  duk_push_c_function(ctx, native_byte_in, 1);
+  duk_put_global_string(ctx, "$bytein");
+
+  // Register native byte out function
+  duk_push_c_function(ctx, native_byte_out, 2);
+  duk_put_global_string(ctx, "$byteout");
+
  // Register native dword in function
  duk_push_c_function(ctx, native_dword_in, 1);
  duk_put_global_string(ctx, "$dwordin");
@@ -110,6 +696,29 @@ void kmain()
  duk_push_c_function(ctx, native_dword_out, 2);
  duk_put_global_string(ctx, "$dwordout");

+  // Register native dword in function
+  duk_push_c_function(ctx, native_word_in, 1);
+  duk_put_global_string(ctx, "$wordin");
+
+  // Register native dword out function
+  duk_push_c_function(ctx, native_word_out, 2);
+  duk_put_global_string(ctx, "$wordout");
+
+  // Register native IRQ registration function
+  duk_push_c_function(ctx, native_irq_register, 2);
+  duk_put_global_string(ctx, "$irqregister");
+
+  // Register native isolated execution function
+  duk_push_c_function(ctx, native_isolated_exec, 1);
+  duk_put_global_string(ctx, "$isolatedExec");
+
+  // Register native isolated heap destruction function
+  duk_push_c_function(ctx, native_destroy_isolated_heap, 1);
+  duk_put_global_string(ctx, "$destroyIsolatedHeap");
+
+  // Enable interrupts before JavaScript execution
+  __asm__ volatile("sti");
+
  // Execute embedded JavaScript code from build/index.js
  duk_push_string(ctx, embedded_js_code);
  duk_int_t returnCode = duk_peval(ctx);
--- a/src/link.ld
+++ b/src/link.ld
@@ -26,15 +26,15 @@ SECTIONS
 		*(COMMON)
 	}
 	
+	/* Stack grows downward from high memory - place before heap */
+	. = ALIGN(4096);
+	__stack_bottom = .;
+	. = . + 0x100000; /* 1MB stack */
+	__stack_top = .;
+	
 	/* Heap for malloc */
 	. = ALIGN(4096);
 	__heap_start = .;
-	. = . + 0x100000; /* 1MB heap */
+	. = . + 0x10000000; /* 256MB heap */
 	__heap_end = .;
-	
-	/* Stack grows downward from high memory */
-	. = ALIGN(4096);
-	__stack_bottom = .;
-	. = . + 0x10000; /* 64KB stack */
-	__stack_top = .;
 }
--- a/src/os/src/config/keyboard.ts
+++ b/src/os/src/config/keyboard.ts
@@ -0,0 +1,67 @@
+export const Keycode = {
+  Enter: 28,
+  Backspace: 14,
+  Q: 16,
+  W: 17,
+  E: 18,
+  R: 19,
+  T: 20,
+  Y: 21,
+  U: 22,
+  I: 23,
+  O: 24,
+  P: 25,
+  A: 30,
+  S: 31,
+  D: 32,
+  F: 33,
+  G: 34,
+  H: 35,
+  J: 36,
+  K: 37,
+  L: 38,
+  Z: 44,
+  X: 45,
+  C: 46,
+  V: 47,
+  B: 48,
+  N: 49,
+  M: 50,
+  ".": 52,
+  "/": 53,
+  " ": 57,
+};
+
+export const RKeycode = {
+  28: "Enter",
+  14: "Backspace",
+  16: "Q",
+  17: "W",
+  18: "E",
+  19: "R",
+  20: "T",
+  21: "Y",
+  22: "U",
+  23: "I",
+  24: "O",
+  25: "P",
+  30: "A",
+  31: "S",
+  32: "D",
+  33: "F",
+  34: "G",
+  35: "H",
+  36: "J",
+  37: "K",
+  38: "L",
+  44: "Z",
+  45: "X",
+  46: "C",
+  47: "V",
+  48: "B",
+  49: "N",
+  50: "M",
+  52: ".",
+  53: "/",
+  57: " ",
+};
--- a/src/os/src/kernel/drivers/dev/ata.ts
+++ b/src/os/src/kernel/drivers/dev/ata.ts
@@ -0,0 +1,365 @@
+import { Logger } from "../../../lib/libstd/logger/logger.kmod";
+import { bytein, byteout } from "../../../lib/libts/byte";
+import { dwordin } from "../../../lib/libts/dword";
+import { wordin } from "../../../lib/libts/word";
+import type { AtaDriveDescriptor } from "../../../types/dev/ata/drive";
+import type { BlockCache } from "../../../types/utils/block_cache";
+import {
+  blockCache_block,
+  blockCache_create,
+  blockCache_init,
+} from "../../utils/block_cache";
+
+const KDRIVER_DEV_ATA_PRIMARY = 0x1f0;
+const KDRIVER_DEV_ATA_SECONDARY = 0x170;
+const KDRIVER_DEV_ATA_PRIMARY_CTL = 0x3f6;
+const KDRIVER_DEV_ATA_SECONDARY_CTL = 0x376;
+const KDRIVER_DEV_ATA_CTL_nIEN = 0x02;
+const KDRIVER_DEV_ATA_MASTER_BIT = 0;
+const KDRIVER_DEV_ATA_SLAVE_BIT = 1;
+const KDRIVER_DEV_ATA_DRV_HEAD = 6;
+const KDRIVER_DEV_ATA_NSECTOR = 2;
+const KDRIVER_DEV_ATA_SECTOR = 3;
+const KDRIVER_DEV_ATA_LCYL = 4;
+const KDRIVER_DEV_ATA_HCYL = 5;
+const KDRIVER_DEV_ATA_STATUS = 7;
+const KDRIVER_DEV_ATA_COMMAND = 7;
+const KDRIVER_DEV_ATA_IDENTIFY = 0xec;
+const KDRIVER_DEV_ATA_READ_SECTORS = 0x20;
+const KDRIVER_DEV_ATA_STATUS_ERROR = 0x01;
+const KDRIVER_DEV_ATA_STATUS_BSY = 0x80;
+const KDRIVER_DEV_ATA_STATUS_DRQ = 0x08;
+const KDRIVER_DEV_ATA_DATA = 0;
+const KDRIVER_DEV_ATA_BLOCK_SIZE = 512;
+
+let drives: AtaDriveDescriptor[] = [];
+let cache = blockCache_create();
+
+export function kdriver_dev_ata_init(): void {}
+
+export function kdriver_dev_ata_400ns_delay(controller: number) {
+  bytein(controller + KDRIVER_DEV_ATA_STATUS);
+  bytein(controller + KDRIVER_DEV_ATA_STATUS);
+  bytein(controller + KDRIVER_DEV_ATA_STATUS);
+  bytein(controller + KDRIVER_DEV_ATA_STATUS);
+  bytein(controller + KDRIVER_DEV_ATA_STATUS);
+  bytein(controller + KDRIVER_DEV_ATA_STATUS);
+  bytein(controller + KDRIVER_DEV_ATA_STATUS);
+  bytein(controller + KDRIVER_DEV_ATA_STATUS);
+  bytein(controller + KDRIVER_DEV_ATA_STATUS);
+}
+
+function ide_string(info: number[], start: number, size: number): string {
+  const buffer = new Array(50);
+
+  const t = info.slice(start);
+  for (let i = 0; i < size; ++i) {
+    const wordIndex = Math.floor(i / 2);
+    const isHighByte = i % 2 === 1;
+
+    buffer[i] = isHighByte ? (t[wordIndex]! >> 8) & 0xff : t[wordIndex]! & 0xff;
+  }
+
+  for (let i = 0; i < size; i += 2) {
+    const c = buffer[i];
+    buffer[i] = buffer[i + 1];
+    buffer[i + 1] = c;
+  }
+
+  let end = size - 1;
+  while (true) {
+    const c = buffer[end];
+
+    if (c > 32 && c < 127) {
+      break;
+    }
+
+    if (end == 0) {
+      break;
+    }
+
+    --end;
+  }
+
+  //buffer[end + 1] = 0;
+
+  let target = "";
+  for (let i = 0; i <= end; i++) {
+    target += String.fromCharCode(buffer[i]);
+  }
+
+  return target;
+}
+
+export function kdriver_dev_ata_identify(drive: AtaDriveDescriptor) {
+  byteout(
+    drive.controller + KDRIVER_DEV_ATA_DRV_HEAD,
+    0xa0 | (drive.slave << 4)
+  );
+  kdriver_dev_ata_400ns_delay(drive.controller);
+
+  const floatingBus = bytein(drive.controller + KDRIVER_DEV_ATA_STATUS);
+  if (floatingBus == 0xff) {
+    return;
+  }
+
+  byteout(drive.controller + KDRIVER_DEV_ATA_COMMAND, KDRIVER_DEV_ATA_IDENTIFY);
+  kdriver_dev_ata_400ns_delay(drive.controller);
+
+  if (bytein(drive.controller + KDRIVER_DEV_ATA_STATUS) == 0) return;
+
+  let notAta = false;
+  let iterations = 0;
+  while (1) {
+    const status = bytein(drive.controller + KDRIVER_DEV_ATA_STATUS);
+    iterations++;
+
+    if (status & KDRIVER_DEV_ATA_STATUS_ERROR) {
+      notAta = true;
+      break;
+    }
+
+    if (
+      !(status & KDRIVER_DEV_ATA_STATUS_BSY) &&
+      status & KDRIVER_DEV_ATA_STATUS_DRQ
+    )
+      break;
+
+    if (iterations > 100000) {
+      return;
+    }
+  }
+
+  drive.atapi = false;
+
+  if (notAta) {
+    const cl = bytein(drive.controller + KDRIVER_DEV_ATA_LCYL);
+    const ch = bytein(drive.controller + KDRIVER_DEV_ATA_HCYL);
+
+    if (cl == 0x14 && ch == 0xeb) drive.atapi = true;
+    else if (cl == 0x69 && ch == 0x96) drive.atapi = true;
+    else return;
+
+    byteout(drive.controller + KDRIVER_DEV_ATA_COMMAND, 0xa1);
+    kdriver_dev_ata_400ns_delay(drive.controller);
+  }
+
+  drive.present = true;
+
+  const info = new Array(256);
+  for (let i = 0; i < 256; i++) {
+    info[i] = wordin(drive.controller + KDRIVER_DEV_ATA_DATA);
+  }
+
+  drive.model = ide_string(info, 27, 40);
+  drive.serial = ide_string(info, 10, 20);
+  drive.firmware = ide_string(info, 23, 8);
+
+  const sectors = info[0] + 114;
+  drive.size = sectors * 4096;
+
+  Logger.log(
+    "[ATA] Found drive " +
+      drive.model +
+      " (" +
+      drive.serial +
+      ") FW: " +
+      drive.firmware +
+      " Size: " +
+      drive.size
+  );
+}
+
+export function kdriver_dev_ata_numberOfDrives(): number {
+  return 4;
+}
+
+export function kdriver_dev_ata_getDrive(n: number) {
+  return drives[n]!;
+}
+
+export function kdriver_dev_ata_detectDisks(): void {
+  blockCache_init(cache, KDRIVER_DEV_ATA_BLOCK_SIZE, 256);
+
+  drives = new Array<AtaDriveDescriptor>(4);
+
+  drives[0] = {
+    controller: KDRIVER_DEV_ATA_PRIMARY,
+    drive: 0xe0,
+    present: false,
+    slave: KDRIVER_DEV_ATA_MASTER_BIT,
+    atapi: false,
+    model: "",
+    serial: "",
+    firmware: "",
+    size: 0,
+  };
+  drives[1] = {
+    controller: KDRIVER_DEV_ATA_PRIMARY,
+    drive: 0xf0,
+    present: false,
+    slave: KDRIVER_DEV_ATA_SLAVE_BIT,
+    atapi: false,
+    model: "",
+    serial: "",
+    firmware: "",
+    size: 0,
+  };
+  drives[2] = {
+    controller: KDRIVER_DEV_ATA_SECONDARY,
+    drive: 0xe0,
+    present: false,
+    slave: KDRIVER_DEV_ATA_MASTER_BIT,
+    atapi: false,
+    model: "",
+    serial: "",
+    firmware: "",
+    size: 0,
+  };
+  drives[3] = {
+    controller: KDRIVER_DEV_ATA_SECONDARY,
+    drive: 0xf0,
+    present: false,
+    slave: KDRIVER_DEV_ATA_SLAVE_BIT,
+    atapi: false,
+    model: "",
+    serial: "",
+    firmware: "",
+    size: 0,
+  };
+
+  byteout(KDRIVER_DEV_ATA_PRIMARY_CTL, KDRIVER_DEV_ATA_CTL_nIEN);
+  byteout(KDRIVER_DEV_ATA_SECONDARY_CTL, KDRIVER_DEV_ATA_CTL_nIEN);
+
+  for (let i = 0; i < 4; i++) {
+    const drive = drives[i]!;
+
+    kdriver_dev_ata_identify(drive);
+  }
+
+  byteout(KDRIVER_DEV_ATA_PRIMARY_CTL, 0);
+  byteout(KDRIVER_DEV_ATA_SECONDARY_CTL, 0);
+
+  // TODO: INTERRUPTS
+}
+
+export function kdriver_dev_ata_readSectors(
+  descriptor: AtaDriveDescriptor,
+  start: number,
+  count: number,
+  read: number
+) {
+  let buffer: number[] = [];
+
+  for (let i = 0; i < count; ++i) {
+    const sectorNum = start + i;
+    const valid = { valid: false };
+    const block = blockCache_block(
+      cache,
+      (descriptor.controller << 8) + descriptor.drive,
+      sectorNum,
+      valid
+    );
+
+    if (!valid.valid) {
+      // Need to actually read from disk
+      byteout(
+        descriptor.controller + KDRIVER_DEV_ATA_DRV_HEAD,
+        0xe0 | (descriptor.slave << 4) | ((sectorNum >> 24) & 0x0f)
+      );
+      byteout(descriptor.controller + KDRIVER_DEV_ATA_NSECTOR, 1);
+      byteout(descriptor.controller + KDRIVER_DEV_ATA_SECTOR, sectorNum & 0xff);
+      byteout(
+        descriptor.controller + KDRIVER_DEV_ATA_LCYL,
+        (sectorNum >> 8) & 0xff
+      );
+      byteout(
+        descriptor.controller + KDRIVER_DEV_ATA_HCYL,
+        (sectorNum >> 16) & 0xff
+      );
+      byteout(
+        descriptor.controller + KDRIVER_DEV_ATA_COMMAND,
+        KDRIVER_DEV_ATA_READ_SECTORS
+      );
+
+      // Wait for drive to be ready
+      let timeout = 0;
+      while (timeout < 100000) {
+        const status = bytein(descriptor.controller + KDRIVER_DEV_ATA_STATUS);
+        if (
+          !(status & KDRIVER_DEV_ATA_STATUS_BSY) &&
+          status & KDRIVER_DEV_ATA_STATUS_DRQ
+        ) {
+          break;
+        }
+        timeout++;
+      }
+
+      // Read 256 words (512 bytes)
+      for (let j = 0; j < 256; j++) {
+        const word = wordin(descriptor.controller + KDRIVER_DEV_ATA_DATA);
+        block[j * 2] = word & 0xff;
+        block[j * 2 + 1] = (word >> 8) & 0xff;
+      }
+    }
+
+    // Copy the block to the output buffer
+    for (let n = 0; n < block.length; n++) {
+      buffer.push(block[n]!);
+    }
+
+    read += 512;
+  }
+
+  return buffer;
+}
+
+export function kdriver_dev_ata_fsDriver_read(
+  data: AtaDriveDescriptor,
+  count: number,
+  offset: number
+) {
+  if (count % KDRIVER_DEV_ATA_BLOCK_SIZE != 0) throw new Error("Invalid count");
+  if (offset % KDRIVER_DEV_ATA_BLOCK_SIZE != 0)
+    throw new Error("Invalid offset");
+
+  const sectors = count / KDRIVER_DEV_ATA_BLOCK_SIZE;
+  const start = offset / KDRIVER_DEV_ATA_BLOCK_SIZE;
+
+  const buffer = kdriver_dev_ata_readSectors(data, start, sectors, 0);
+
+  return buffer;
+}
+
+export function kdriver_dev_ata_partition_fsDriver_read(
+  data: any,
+  count: number,
+  offset: number
+) {
+  if (count % KDRIVER_DEV_ATA_BLOCK_SIZE != 0) throw new Error("Invalid count");
+  if (offset % KDRIVER_DEV_ATA_BLOCK_SIZE != 0)
+    throw new Error("Invalid offset");
+
+  const partition = data;
+  const disk = partition.disk as { descriptor: AtaDriveDescriptor };
+
+  const sectors = count / KDRIVER_DEV_ATA_BLOCK_SIZE;
+  const start = partition.lbaStart + offset / KDRIVER_DEV_ATA_BLOCK_SIZE;
+
+  const buffer = kdriver_dev_ata_readSectors(
+    disk.descriptor,
+    start,
+    sectors,
+    0
+  );
+
+  return buffer;
+}
+
+export const kdriver_dev_ata_fsDriver = {
+  read: kdriver_dev_ata_fsDriver_read,
+};
+
+export const kdriver_dev_ata_partition_fsDriver = {
+  read: kdriver_dev_ata_partition_fsDriver_read,
+};
--- a/src/os/src/kernel/drivers/dev/keyboard.ts
+++ b/src/os/src/kernel/drivers/dev/keyboard.ts
@@ -0,0 +1,31 @@
+import { Keycode, RKeycode } from "../../../config/keyboard";
+import { Logger } from "../../../lib/libstd/logger/logger.kmod";
+import { bytein } from "../../../lib/libts/byte";
+import { kmod_cpu_irq_register } from "../../modules/cpu/interrupts";
+import { kmod_terminal_input_handleKeyboardInput } from "../../modules/terminal/input";
+
+export function kdriver_dev_keyboard_handleInterrupt(): void {
+  const scancode = bytein(0x60);
+
+  const key = RKeycode[scancode as keyof typeof RKeycode] as
+    | keyof typeof Keycode
+    | undefined;
+
+  //Logger.log(String(scancode));
+
+  if (key == undefined) return;
+
+  kmod_terminal_input_handleKeyboardInput(key);
+}
+
+export function kdriver_dev_keyboard_init(): void {
+  if (!kmod_cpu_irq_register(1, kdriver_dev_keyboard_handleInterrupt, null)) {
+    Logger.log("[keyboard] Failed to register keyboard interrupt");
+    return;
+  }
+
+  let key = 0;
+  while ((key = bytein(0x64) & 1) == 1) {
+    bytein(0x60);
+  }
+}
--- a/src/os/src/kernel/filesystem/devfs.ts
+++ b/src/os/src/kernel/filesystem/devfs.ts
@@ -0,0 +1,154 @@
+import { Path } from "../../lib/libstd/path";
+import type { AtaDriveDescriptor } from "../../types/dev/ata/drive";
+import type { DeviceType } from "../../types/dev/device";
+import type {
+  KFilesystemDevice,
+  KFilesystemDirectReadResponse,
+  KFilesystemDriver,
+  KFilesystemEntity,
+  KFilesystemMemdata,
+  KFilesystemMemdev,
+  KFilesystemStat,
+} from "../../types/filesystem/fs";
+
+const devfs_data: KFilesystemMemdev = [];
+
+export function devfs_driver(): KFilesystemDriver {
+  return {
+    id: "devfs",
+    init: devfs_init,
+    listDir(path: string): (KFilesystemEntity | KFilesystemDevice)[] | null {
+      return devfs_listDir(path);
+    },
+    readFile(path: string): unknown {
+      throw new Error("Cannot read files in devfs.");
+    },
+    writeFile(path: string, content: unknown): void {
+      throw new Error("Cannot write files in devfs.");
+    },
+    createFile(path: string, content: unknown): void {
+      throw new Error("Cannot create files in devfs.");
+    },
+    mkdir(path: string): void {
+      throw new Error("Cannot make directories in devfs.");
+    },
+    stat(path: string): KFilesystemStat | null {
+      return devfs_statEntity(path);
+    },
+    rm(path: string): void {
+      throw new Error("Cannot remove objects in devfs.")
+    }
+  };
+}
+
+export function devfs_init(): void {
+  devfs_data.push({
+    name: "root",
+    path: "/",
+    type: "folder",
+    size: 0,
+    contents: null,
+  });
+}
+
+export function devfs_getEntity(
+  path: string
+): KFilesystemDevice | KFilesystemEntity | null {
+  for (let i = 0; i < devfs_data.length; i++) {
+    const entity = devfs_data[i]!;
+
+    if (entity.path === path) return entity;
+  }
+
+  return null;
+}
+
+export function devfs_statEntity(path: string): KFilesystemStat | null {
+  const entity = devfs_getEntity(path);
+  if (!entity) return null;
+
+  return {
+    name: entity.name,
+    type: entity.type,
+    size: entity.size,
+  };
+}
+
+export function devfs_mkdir(path: string): void {
+  if (devfs_getEntity(path)) return;
+
+  const parent = Path.dirname(path);
+  if (!devfs_getEntity(parent)) return;
+
+  devfs_data.push({
+    name: Path.filename(path),
+    path,
+    type: "folder",
+    size: 0,
+    contents: null,
+  });
+}
+
+export function devfs_listDir(
+  path: string
+): (KFilesystemEntity | KFilesystemDevice)[] | null {
+  const entity = devfs_getEntity(path);
+  if (!entity) return null;
+
+  if (entity.type !== "folder") return null;
+
+  const contents: (KFilesystemEntity | KFilesystemDevice)[] = [];
+
+  for (let i = 0; i < devfs_data.length; i++) {
+    const e = devfs_data[i]!;
+
+    if (Path.dirname(e.path) === path) {
+      contents.push(e);
+    }
+  }
+
+  return contents;
+}
+
+export function devfs_registerDevice(
+  path: string,
+  type: DeviceType,
+  driver: unknown,
+  data: unknown
+) {
+  if (devfs_getEntity(path)) return;
+
+  const parent = Path.dirname(path);
+  if (!devfs_getEntity(parent)) return;
+
+  devfs_data.push({
+    name: Path.filename(path),
+    path,
+    type: "file",
+    size: 0,
+    contents: "",
+    dtype: type,
+    driver: driver,
+    data: data,
+  });
+}
+
+export function devfs_getDevice(path: string): KFilesystemDevice | null {
+  const e = devfs_getEntity(path);
+  if (!e) return null;
+  if (!("driver" in e)) return null;
+
+  return e;
+}
+
+export function devfs_directRead(
+  path: string,
+  count: number,
+  offset: number
+): KFilesystemDirectReadResponse | null {
+  const device = devfs_getDevice(path);
+  if (!device) return null;
+
+  //return (device.driver as any).read(device.data, count, offset);
+  return [];
+}
--- a/src/os/src/kernel/filesystem/fat32.ts
+++ b/src/os/src/kernel/filesystem/fat32.ts
@@ -0,0 +1,370 @@
+import { Logger } from "../../lib/libstd/logger/logger.kmod";
+import type {
+  KFilesystemDriver,
+  KFilesystemEntity,
+  KFilesystemStat,
+} from "../../types/filesystem/fs";
+
+interface Fat32BootSector {
+  bytesPerSector: number;
+  sectorsPerCluster: number;
+  reservedSectors: number;
+  numberOfFATs: number;
+  sectorsPerFAT: number;
+  rootCluster: number;
+  totalSectors: number;
+}
+
+interface Fat32State {
+  driver: any;
+  data: any;
+  boot: Fat32BootSector;
+  fatStart: number;
+  dataStart: number;
+}
+
+interface DirectoryEntry {
+  name: string;
+  extension: string;
+  attributes: number;
+  firstCluster: number;
+  fileSize: number;
+}
+
+const ATTR_READ_ONLY = 0x01;
+const ATTR_HIDDEN = 0x02;
+const ATTR_SYSTEM = 0x04;
+const ATTR_VOLUME_ID = 0x08;
+const ATTR_DIRECTORY = 0x10;
+const ATTR_ARCHIVE = 0x20;
+const ATTR_LONG_NAME =
+  ATTR_READ_ONLY | ATTR_HIDDEN | ATTR_SYSTEM | ATTR_VOLUME_ID;
+
+export function fat32_driver(driver: any, data: any): KFilesystemDriver {
+  const state: Fat32State = {
+    driver,
+    data,
+    boot: {} as Fat32BootSector,
+    fatStart: 0,
+    dataStart: 0,
+  };
+
+  return {
+    id: "fat32",
+    init() {
+      return fat32_init(state);
+    },
+    listDir(path: string) {
+      return fat32_listDir(state, path);
+    },
+    readFile(path: string) {
+      return fat32_readFile(state, path);
+    },
+    writeFile(path: string, content: unknown) {
+      throw new Error("FAT32 write not implemented");
+    },
+    createFile(path: string, content: unknown) {
+      throw new Error("FAT32 createFile not implemented");
+    },
+    mkdir(path: string) {
+      throw new Error("FAT32 mkdir not implemented");
+    },
+    stat(path: string) {
+      return fat32_stat(state, path);
+    },
+    directRead(path: string, count: number, offset: number) {
+      return fat32_directRead(state, path, count, offset);
+    },
+    rm(path: string): void {
+      throw new Error("Cannot remove objects in fat32.");
+    },
+  };
+}
+
+function fat32_init(state: Fat32State): void {
+  const bootSector = state.driver.read(state.data, 512, 0);
+
+  state.boot = {
+    bytesPerSector: bootSector[11] | (bootSector[12] << 8),
+    sectorsPerCluster: bootSector[13],
+    reservedSectors: bootSector[14] | (bootSector[15] << 8),
+    numberOfFATs: bootSector[16],
+    sectorsPerFAT:
+      bootSector[36] |
+      (bootSector[37] << 8) |
+      (bootSector[38] << 16) |
+      (bootSector[39] << 24),
+    rootCluster:
+      bootSector[44] |
+      (bootSector[45] << 8) |
+      (bootSector[46] << 16) |
+      (bootSector[47] << 24),
+    totalSectors:
+      bootSector[32] |
+      (bootSector[33] << 8) |
+      (bootSector[34] << 16) |
+      (bootSector[35] << 24),
+  };
+
+  state.fatStart = state.boot.reservedSectors;
+  state.dataStart =
+    state.boot.reservedSectors +
+    state.boot.numberOfFATs * state.boot.sectorsPerFAT;
+}
+
+function fat32_clusterToSector(state: Fat32State, cluster: number): number {
+  return state.dataStart + (cluster - 2) * state.boot.sectorsPerCluster;
+}
+
+function fat32_readCluster(state: Fat32State, cluster: number): number[] {
+  const sector = fat32_clusterToSector(state, cluster);
+  const size = state.boot.sectorsPerCluster * state.boot.bytesPerSector;
+  return state.driver.read(
+    state.data,
+    size,
+    sector * state.boot.bytesPerSector
+  );
+}
+
+function fat32_getNextCluster(state: Fat32State, cluster: number): number {
+  const fatOffset = cluster * 4;
+  const fatSector =
+    state.fatStart + Math.floor(fatOffset / state.boot.bytesPerSector);
+  const entryOffset = fatOffset % state.boot.bytesPerSector;
+
+  const sector = state.driver.read(
+    state.data,
+    state.boot.bytesPerSector,
+    fatSector * state.boot.bytesPerSector
+  );
+
+  const nextCluster =
+    sector[entryOffset] |
+    (sector[entryOffset + 1] << 8) |
+    (sector[entryOffset + 2] << 16) |
+    (sector[entryOffset + 3] << 24);
+
+  return nextCluster & 0x0fffffff;
+}
+
+function fat32_parseDirectoryEntry(
+  data: number[],
+  offset: number
+): DirectoryEntry | null {
+  if (data[offset] === 0x00) return null; // End of directory
+  if (data[offset] === 0xe5) return null; // Deleted entry
+
+  const attr = data[offset + 11];
+  if ((attr & ATTR_LONG_NAME) === ATTR_LONG_NAME) return null; // LFN entry
+
+  let name = "";
+  for (let i = 0; i < 8; i++) {
+    const c = data[offset + i];
+    if (c !== 0x20) name += String.fromCharCode(c);
+  }
+
+  let extension = "";
+  for (let i = 0; i < 3; i++) {
+    const c = data[offset + 8 + i];
+    if (c !== 0x20) extension += String.fromCharCode(c);
+  }
+
+  const firstClusterLow = data[offset + 26] | (data[offset + 27] << 8);
+  const firstClusterHigh = data[offset + 20] | (data[offset + 21] << 8);
+  const firstCluster = (firstClusterHigh << 16) | firstClusterLow;
+
+  const fileSize =
+    data[offset + 28] |
+    (data[offset + 29] << 8) |
+    (data[offset + 30] << 16) |
+    (data[offset + 31] << 24);
+
+  return {
+    name: name.trim(),
+    extension: extension.trim(),
+    attributes: attr,
+    firstCluster,
+    fileSize,
+  };
+}
+
+function fat32_listDir(
+  state: Fat32State,
+  path: string
+): KFilesystemEntity[] | null {
+  let cluster: number | undefined;
+
+  if (path === "/") cluster = state.boot.rootCluster;
+  else {
+    const entry = fat32_findEntry(state, path);
+    if (!entry) {
+      return null;
+    }
+    cluster = entry.firstCluster;
+  }
+
+  if (!cluster) {
+    return null;
+  }
+
+  const entries: KFilesystemEntity[] = [];
+  let currentCluster = cluster;
+
+  while (currentCluster < 0x0ffffff8) {
+    const clusterData = fat32_readCluster(state, currentCluster);
+
+    for (let i = 0; i < clusterData.length; i += 32) {
+      const entry = fat32_parseDirectoryEntry(clusterData, i);
+      if (!entry) continue;
+
+      // Skip volume label entries
+      if ((entry.attributes & ATTR_VOLUME_ID) !== 0) continue;
+
+      const fullName = entry.extension
+        ? entry.name + "." + entry.extension
+        : entry.name;
+      const isDir = (entry.attributes & ATTR_DIRECTORY) !== 0;
+
+      entries.push({
+        name: fullName,
+        path: path === "/" ? "/" + fullName : path + "/" + fullName,
+        type: isDir ? "folder" : "file",
+        size: entry.fileSize,
+        contents: null,
+      });
+    }
+
+    currentCluster = fat32_getNextCluster(state, currentCluster);
+  }
+
+  return entries;
+}
+
+function fat32_findEntry(
+  state: Fat32State,
+  path: string
+): DirectoryEntry | null {
+  const parts = path.split("/").filter(function (p) {
+    return p.length > 0;
+  });
+  if (parts.length === 0) return null;
+
+  let currentCluster = state.boot.rootCluster;
+
+  for (let i = 0; i < parts.length; i++) {
+    const targetName = parts[i]!.toUpperCase();
+    let found = false;
+
+    while (currentCluster < 0x0ffffff8) {
+      const clusterData = fat32_readCluster(state, currentCluster);
+
+      for (let j = 0; j < clusterData.length; j += 32) {
+        const entry = fat32_parseDirectoryEntry(clusterData, j);
+        if (!entry) continue;
+
+        const entryName = entry.extension
+          ? entry.name + "." + entry.extension
+          : entry.name;
+
+        if (entryName.toUpperCase() === targetName) {
+          if (i === parts.length - 1) return entry;
+          currentCluster = entry.firstCluster;
+          found = true;
+          break;
+        }
+      }
+
+      if (found) break;
+      currentCluster = fat32_getNextCluster(state, currentCluster);
+    }
+
+    if (!found) return null;
+  }
+
+  return null;
+}
+
+function fat32_readFile(state: Fat32State, path: string): number[] {
+  const entry = fat32_findEntry(state, path);
+  if (!entry || (entry.attributes & ATTR_DIRECTORY) !== 0) {
+    throw new Error("File not found or is a directory");
+  }
+
+  const data: number[] = [];
+  let currentCluster = entry.firstCluster;
+  let remaining = entry.fileSize;
+
+  while (currentCluster < 0x0ffffff8 && remaining > 0) {
+    const clusterData = fat32_readCluster(state, currentCluster);
+    const bytesToCopy = Math.min(remaining, clusterData.length);
+
+    for (let i = 0; i < bytesToCopy; i++) {
+      data.push(clusterData[i]!);
+    }
+
+    remaining -= bytesToCopy;
+    currentCluster = fat32_getNextCluster(state, currentCluster);
+  }
+
+  return data;
+}
+
+function fat32_stat(state: Fat32State, path: string): KFilesystemStat | null {
+  if (path === "/") {
+    return { name: "/", type: "folder", size: 0 };
+  }
+
+  const entry = fat32_findEntry(state, path);
+  if (!entry) return null;
+
+  const fullName = entry.extension
+    ? entry.name + "." + entry.extension
+    : entry.name;
+
+  return {
+    name: fullName,
+    type: (entry.attributes & ATTR_DIRECTORY) !== 0 ? "folder" : "file",
+    size: entry.fileSize,
+  };
+}
+
+function fat32_directRead(
+  state: Fat32State,
+  path: string,
+  count: number,
+  offset: number
+): number[] {
+  const entry = fat32_findEntry(state, path);
+  if (!entry || (entry.attributes & ATTR_DIRECTORY) !== 0) {
+    throw new Error("File not found or is a directory");
+  }
+
+  const clusterSize = state.boot.sectorsPerCluster * state.boot.bytesPerSector;
+  let currentCluster = entry.firstCluster;
+  let currentOffset = 0;
+  const data: number[] = [];
+
+  // Skip to the cluster containing the offset
+  while (offset >= currentOffset + clusterSize && currentCluster < 0x0ffffff8) {
+    currentOffset += clusterSize;
+    currentCluster = fat32_getNextCluster(state, currentCluster);
+  }
+
+  let remaining = count;
+  const startOffsetInCluster = offset - currentOffset;
+
+  while (remaining > 0 && currentCluster < 0x0ffffff8) {
+    const clusterData = fat32_readCluster(state, currentCluster);
+    const start = data.length === 0 ? startOffsetInCluster : 0;
+    const bytesToCopy = Math.min(remaining, clusterData.length - start);
+
+    for (let i = start; i < start + bytesToCopy; i++) {
+      data.push(clusterData[i]!);
+    }
+
+    remaining -= bytesToCopy;
+    currentCluster = fat32_getNextCluster(state, currentCluster);
+  }
+
+  return data;
+}
--- a/src/os/src/kernel/filesystem/procfs.ts
+++ b/src/os/src/kernel/filesystem/procfs.ts
@@ -0,0 +1,168 @@
+import { Logger } from "../../lib/libstd/logger/logger.kmod";
+import { Path } from "../../lib/libstd/path";
+import type {
+  KFilesystemDriver,
+  KFilesystemEntity,
+  KFilesystemMemdata,
+  KFilesystemStat,
+} from "../../types/filesystem/fs";
+
+const procfs_data: KFilesystemMemdata = [];
+
+export function procfs_driver(): KFilesystemDriver {
+  return {
+    id: "procfs",
+    init: procfs_init,
+    listDir(path: string): KFilesystemEntity[] | null {
+      return procfs_listDir(path);
+    },
+    readFile(path: string): unknown {
+      return procfs_readFile(path);
+    },
+    writeFile(path: string, content: unknown): void {
+      throw new Error("Cannot write files in procfs.");
+    },
+    createFile(path: string, content: unknown): void {
+      throw new Error("Cannot create files in procfs.");
+    },
+    mkdir(path: string): void {
+      throw new Error("Cannot make directories in procfs.");
+    },
+    stat(path: string): KFilesystemStat | null {
+      return procfs_statEntity(path);
+    },
+    rm(path: string): void {
+      procfs_rm(path);
+    },
+  };
+}
+
+export function procfs_init(): void {
+  procfs_data.push({
+    name: "root",
+    path: "/",
+    type: "folder",
+    size: 0,
+    contents: null,
+  });
+}
+
+export function procfs_getEntity(path: string): KFilesystemEntity | null {
+  for (let i = 0; i < procfs_data.length; i++) {
+    const entity = procfs_data[i]!;
+
+    if (entity.path === path) return entity;
+  }
+
+  return null;
+}
+
+export function procfs_statEntity(path: string): KFilesystemStat | null {
+  const entity = procfs_getEntity(path);
+  if (!entity) return null;
+
+  return {
+    name: entity.name,
+    type: entity.type,
+    size: entity.size,
+  };
+}
+
+export function procfs_mkdir(path: string): void {
+  if (procfs_getEntity(path)) return;
+
+  const parent = Path.dirname(path);
+  if (!procfs_getEntity(parent)) return;
+
+  procfs_data.push({
+    name: Path.filename(path),
+    path,
+    type: "folder",
+    size: 0,
+    contents: null,
+  });
+}
+
+export function procfs_createFile(path: string, content: unknown): void {
+  if (procfs_getEntity(path)) return;
+
+  const parent = Path.dirname(path);
+  if (!procfs_getEntity(parent)) return;
+
+  const size = String(content).length;
+
+  procfs_data.push({
+    name: Path.filename(path),
+    path,
+    type: "file",
+    size,
+    contents: content,
+  });
+}
+
+export function procfs_writeFile(path: string, content: unknown): void {
+  const entity = procfs_getEntity(path);
+  if (!entity) return procfs_createFile(path, content);
+
+  if (entity.type !== "file") return;
+
+  entity.contents = content;
+  entity.size = String(content).length;
+}
+
+export function procfs_readFile(path: string): unknown {
+  const entity = procfs_getEntity(path);
+  if (!entity) return null;
+
+  if (entity.type !== "file") return null;
+
+  return entity.contents;
+}
+
+export function procfs_listDir(path: string): KFilesystemEntity[] | null {
+  const entity = procfs_getEntity(path);
+  if (!entity) return null;
+
+  if (entity.type !== "folder") return null;
+
+  const contents: KFilesystemEntity[] = [];
+
+  for (let i = 0; i < procfs_data.length; i++) {
+    const e = procfs_data[i]!;
+
+    if (Path.dirname(e.path) === path) {
+      contents.push(e);
+    }
+  }
+
+  return contents;
+}
+
+export function procfs_rm(path: string): void {
+  const entity = procfs_getEntity(path);
+  if (!entity) return;
+
+  if (entity.type === "file") {
+    const index = procfs_data.indexOf(entity);
+
+    if (index !== -1) procfs_data.splice(index, 1);
+  } else if (entity.type === "folder") {
+    const entitiesToRemove: KFilesystemEntity[] = [];
+    const pathPrefix = path === "/" ? "/" : path + "/";
+
+    for (let i = 0; i < procfs_data.length; i++) {
+      const e = procfs_data[i]!;
+
+      if (e.path === path || e.path.startsWith(pathPrefix)) {
+        entitiesToRemove.push(e);
+      }
+    }
+
+    for (let i = 0; i < entitiesToRemove.length; i++) {
+      const toRemove = entitiesToRemove[i]!;
+      const index = procfs_data.indexOf(toRemove);
+
+      if (index !== -1) procfs_data.splice(index, 1);
+    }
+  }
+}
--- a/src/os/src/kernel/filesystem/sysfs.ts
+++ b/src/os/src/kernel/filesystem/sysfs.ts
@@ -31,6 +31,9 @@ export function sysfs_driver(): KFilesystemDriver {
    stat(path: string): KFilesystemStat | null {
      return sysfs_statEntity(path);
    },
+    rm(path: string): void {
+      throw new Error("Cannot remove objects in sysfs.");
+    },
  };
 }

--- a/src/os/src/kernel/index.ts
+++ b/src/os/src/kernel/index.ts
@@ -1,19 +1,27 @@
 import { Logger } from "../lib/libstd/logger/logger.kmod";
 import { charc } from "../lib/libts/byte";
 import { padStart } from "../lib/libts/string";
+import { uiarrtostr } from "../lib/libts/uint_arr";
 import { getDate } from "../lib/sys/date";
+import { kdriver_dev_ata_detectDisks } from "./drivers/dev/ata";
 import { kdriver_dev_pci_detectDevices } from "./drivers/dev/pci";
 import {
  kdriver_etc_serial_read,
  kdriver_etc_serial_transmit,
 } from "./drivers/etc/serial";
+import { devfs_driver, devfs_getDevice } from "./filesystem/devfs";
+import { fat32_driver } from "./filesystem/fat32";
+import { procfs_driver } from "./filesystem/procfs";
 import { sysfs_driver, sysfs_readFile } from "./filesystem/sysfs";
+import { kmod_app_init, kmod_app_run } from "./modules/app/app.kmod";
+import { kmod_disks_detectDisks } from "./modules/disks/disks.kmod";
 import {
  kmod_drivers_init,
  kmod_drivers_register,
 } from "./modules/drivers/drivers.kmod";
 import {
  kmod_filesystem_init,
+  kmod_filesystem_listDir,
  kmod_filesystem_mount,
  kmod_filesystem_readFile,
 } from "./modules/filesystem/filesystem.kmod";
@@ -21,7 +29,12 @@ import {
  kmod_graphics_vga_clear,
  kmod_graphics_vga_init,
  kmod_graphics_vga_pushLine,
+  kmod_graphics_vga_setLastLine,
 } from "./modules/graphics/graphics.kmod";
+import {
+  kmod_terminal_input_init,
+  kmod_terminal_input_onKeyboardInput,
+} from "./modules/terminal/input";

 export function kmain() {
  kmod_drivers_init();
@@ -29,18 +42,37 @@ export function kmain() {
  kmod_drivers_register();
  Logger.log("[Kernel] Drivers initialized.");

+  Logger.log("[Kernel] Initializing VGA module...");
+  kmod_graphics_vga_init();
+
  Logger.log("[Kernel] Initializing filesystem module...");
  kmod_filesystem_init();
  kmod_filesystem_mount("/sys", sysfs_driver);
+  kmod_filesystem_mount("/dev", devfs_driver);
+  kmod_filesystem_mount("/proc", procfs_driver);
+
+  Logger.log("[Kernel] Initializing terminal module...");
+  kmod_terminal_input_init();

  Logger.log("[Kernel] Initializing PCI devices...");
  kdriver_dev_pci_detectDevices();

-  Logger.log("[Kernel] Initializing VGA module...");
-  kmod_graphics_vga_init();
-  kmod_graphics_vga_pushLine("[Kernel] Kernel initialized successfully.");
-  kmod_graphics_vga_pushLine("Current date: " + getDate().toDateString());
-  kmod_graphics_vga_pushLine(
-    Number(kmod_filesystem_readFile("/sys/pci/0:1:0/vendor")).toString(16)
-  );
+  Logger.log("[Kernel] Initializing drives...");
+  kmod_disks_detectDisks();
+
+  const dev = devfs_getDevice("/hda1");
+  if (!dev) throw new Error("System drive not found");
+
+  kmod_filesystem_mount("/disk", function () {
+    return fat32_driver(dev.driver, dev.data);
+  });
+
+  Logger.log("[Kernel] Initializing app module...");
+  kmod_app_init();
+
+  Logger.log("[Kernel] Kernel initialized successfully.");
+
+  const shell = uiarrtostr(kmod_filesystem_readFile("/disk/ushellc")!);
+
+  kmod_app_run(shell, "");
 }
--- a/src/os/src/kernel/modules/app/app.kmod.ts
+++ b/src/os/src/kernel/modules/app/app.kmod.ts
@@ -0,0 +1,152 @@
+import { Logger } from "../../../lib/libstd/logger/logger.kmod";
+import { Path } from "../../../lib/libstd/path";
+import { iexec } from "../../../lib/libts/exec";
+import { uiarrtostr } from "../../../lib/libts/uint_arr";
+import {
+  kmod_filesystem_listDir,
+  kmod_filesystem_readFile,
+  kmod_filesystem_stat,
+} from "../filesystem/filesystem.kmod";
+import { oskrnl_register } from "../../../oskrnl";
+import { getPathEnv } from "../../../lib/sys/env";
+import {
+  procfs_mkdir,
+  procfs_readFile,
+  procfs_rm,
+  procfs_writeFile,
+} from "../../filesystem/procfs";
+
+const exitListeners: { [pid: string]: (() => void)[] } = {};
+const heapHandles: { [pid: string]: number } = {};
+
+export function kmod_app_init() {
+  oskrnl_register();
+}
+
+export function kmod_app_run(path: string, args: string) {
+  const appPath = kmod_app_resolve(path);
+  if (!appPath) throw new Error("App not found");
+
+  const meta = JSON.parse(
+    uiarrtostr(kmod_filesystem_readFile(Path.join(appPath, "meta.lam"))!)
+  );
+
+  if (!meta) throw new Error("App metadata not found");
+
+  const entrypoint = Path.join(appPath, meta["app:entrypoint"]);
+  const code = uiarrtostr(kmod_filesystem_readFile(entrypoint)!);
+
+  const pid = kmod_app_proc_generateId().toString();
+
+  kmod_app_proc_init(pid, meta["app:name"]!, args);
+  kmod_app_proc_registerHandle(pid, "app");
+  const heapHandle = iexec("var __oskrnl_procd_pid = " + pid + ";\n" + code);
+  if (heapHandle) heapHandles[pid] = heapHandle;
+  kmod_app_proc_unregisterHandle(pid, "app");
+
+  return pid;
+}
+
+export function kmod_app_resolve(path: string): string | null {
+  if (kmod_filesystem_stat(path)) return path;
+
+  const pathEnv = getPathEnv();
+  if (!pathEnv) return null;
+
+  for (let i = 0; i < pathEnv.length; i++) {
+    const p = Path.join(pathEnv[i]!, path);
+    if (kmod_filesystem_stat(p)) return p;
+  }
+
+  return null;
+}
+
+export function kmod_app_proc_generateId(): number {
+  return Math.floor(Math.random() * 0xffffffff);
+}
+
+export function kmod_app_proc_init(id: string, name: string, args: string) {
+  const root = "/" + id;
+  procfs_mkdir(root);
+  procfs_writeFile(Path.join(root, "name"), name);
+  procfs_writeFile(Path.join(root, "args"), args);
+  procfs_writeFile(Path.join(root, "pid"), id);
+  procfs_writeFile(Path.join(root, "handles"), "");
+}
+
+export function kmod_app_proc_getArgs(pid: string): string {
+  const res = procfs_readFile(Path.join("/" + pid, "args"));
+  return res as string;
+}
+
+export function kmod_app_proc_registerHandle(
+  pid: string,
+  handle: string
+): string {
+  const handles = procfs_readFile(Path.join("/" + pid, "handles")) as string;
+
+  const handlesArr = handles == "" ? [] : handles.split(",");
+  handlesArr.push(handle);
+
+  procfs_writeFile(Path.join("/" + pid, "handles"), handlesArr.join(","));
+
+  return handle;
+}
+
+export function kmod_app_proc_unregisterHandle(
+  pid: string,
+  handle: string
+): void {
+  const handles = procfs_readFile(Path.join("/" + pid, "handles")) as string;
+  if (handles == "") return;
+
+  const handlesArr = handles.split(",");
+  handlesArr.splice(handlesArr.indexOf(handle), 1);
+
+  procfs_writeFile(Path.join("/" + pid, "handles"), handlesArr.join(","));
+
+  if (handlesArr.length < 1) kmod_app_proc_handleExit(pid);
+}
+
+export function kmod_app_proc_generateHandle(): string {
+  return Math.floor(Math.random() * 0xffffffff).toString();
+}
+
+export function kmod_app_proc_handleExit(pid: string): void {
+  procfs_writeFile(Path.join("/", pid + "/handles"), "");
+  procfs_rm("/" + pid);
+
+  if (exitListeners[pid]) {
+    for (let i = 0; i < exitListeners[pid].length; i++) {
+      exitListeners[pid][i]!();
+    }
+  }
+
+  exitListeners[pid] = [];
+  delete exitListeners[pid];
+
+  if (heapHandles[pid]) {
+    $destroyIsolatedHeap(heapHandles[pid]!);
+    delete heapHandles[pid];
+  }
+}
+
+export function kmod_app_proc_running(pid: string): boolean {
+  const handles = procfs_readFile(Path.join("/" + pid, "handles")) as string;
+
+  if (handles === null || handles === undefined) return false;
+
+  return handles !== "";
+}
+
+export function kmod_app_proc_addExitListener(
+  pid: string,
+  listener: () => void
+): void {
+  if (!exitListeners[pid]) exitListeners[pid] = [];
+  exitListeners[pid].push(listener);
+}
+
+export function kmod_app_proc_exit(pid: string): void {
+  kmod_app_proc_handleExit(pid);
+}
--- a/src/os/src/kernel/modules/cpu/interrupts.ts
+++ b/src/os/src/kernel/modules/cpu/interrupts.ts
@@ -0,0 +1,43 @@
+import { Logger } from "../../../lib/libstd/logger/logger.kmod";
+import type { KInterrupt, KInterruptHandler } from "../../../types/interrupt";
+
+const kmod_cpu_irq_data: KInterrupt[] = [];
+
+export function kmod_cpu_irq_register(
+  irq: number,
+  handler: KInterruptHandler,
+  data: unknown
+): boolean {
+  if (kmod_cpu_irq_data[irq]) {
+    Logger.log("[IRQ] IRQ " + irq + " is already registered.");
+    return false;
+  }
+
+  if (irq > 15) {
+    Logger.log("[IRQ] IRQ " + irq + " is out of bounds.");
+    return false;
+  }
+
+  kmod_cpu_irq_data[irq] = {
+    handler: handler,
+    data: data,
+  };
+
+  function wrapper(irqNum: number) {
+    const irqData = kmod_cpu_irq_data[irqNum];
+    if (irqData) {
+      irqData.handler(irqNum, irqData.data);
+    }
+  }
+
+  const success = $irqregister(irq, wrapper);
+
+  if (!success) {
+    Logger.log("[IRQ] Failed to register IRQ " + irq + " with hardware.");
+    delete kmod_cpu_irq_data[irq];
+    return false;
+  }
+
+  Logger.log("[IRQ] Successfully registered IRQ " + irq);
+  return true;
+}
--- a/src/os/src/kernel/modules/disks/disks.kmod.ts
+++ b/src/os/src/kernel/modules/disks/disks.kmod.ts
@@ -0,0 +1,163 @@
+import { Logger } from "../../../lib/libstd/logger/logger.kmod";
+import { Path } from "../../../lib/libstd/path";
+import { cchar, charc } from "../../../lib/libts/byte";
+import { DeviceType } from "../../../types/dev/device";
+import { DiskType, type Disk } from "../../../types/filesystem/disk";
+import {
+  kdriver_dev_ata_detectDisks,
+  kdriver_dev_ata_fsDriver,
+  kdriver_dev_ata_getDrive,
+  kdriver_dev_ata_numberOfDrives,
+  kdriver_dev_ata_partition_fsDriver,
+  kdriver_dev_ata_readSectors,
+} from "../../drivers/dev/ata";
+import { devfs_registerDevice } from "../../filesystem/devfs";
+import { sysfs_mkdir, sysfs_writeFile } from "../../filesystem/sysfs";
+
+let disks: Disk[] = [];
+
+export function kmod_disks_detectDisks() {
+  kdriver_dev_ata_detectDisks();
+
+  let cdrom = charc("a");
+  let disk = charc("a");
+  let numOfDisks = 0;
+
+  for (let i = 0; i < kdriver_dev_ata_numberOfDrives(); ++i) {
+    const descriptor = kdriver_dev_ata_getDrive(i);
+
+    if (!descriptor.present) continue;
+
+    let name = "";
+
+    if (descriptor.atapi) {
+      name = "cd" + cchar(cdrom);
+      cdrom++;
+
+      disks.push({
+        dnum: numOfDisks,
+        name: name,
+        descriptor: descriptor,
+        type: DiskType.ATAPI,
+      });
+
+      devfs_registerDevice(
+        "/" + name,
+        DeviceType.BlockDevice,
+        null,
+        descriptor
+      );
+    } else {
+      name = "hd" + cchar(disk);
+      disk++;
+
+      disks.push({
+        dnum: numOfDisks,
+        name: name,
+        descriptor: descriptor,
+        type: DiskType.ATA,
+      });
+
+      devfs_registerDevice(
+        "/" + name,
+        DeviceType.BlockDevice,
+        kdriver_dev_ata_fsDriver,
+        descriptor
+      );
+
+      let part = charc("1");
+
+      const partitions = kmod_disks_getPartitions(disks[numOfDisks]!);
+
+      for (let n = 0; n < partitions.length; n++) {
+        const partition = partitions[n];
+
+        let part_name = name + cchar(part);
+        part++;
+
+        (partition as any).disk = disks[numOfDisks]!;
+
+        devfs_registerDevice(
+          "/" + part_name,
+          DeviceType.BlockDevice,
+          kdriver_dev_ata_partition_fsDriver,
+          partition
+        );
+      }
+    }
+
+    const p = Path.join("/ata", name);
+
+    sysfs_mkdir(p);
+    sysfs_writeFile(Path.join(p, "model"), descriptor.model);
+    sysfs_writeFile(Path.join(p, "serial"), descriptor.serial);
+    sysfs_writeFile(Path.join(p, "firmware"), descriptor.firmware);
+
+    numOfDisks++;
+  }
+}
+
+export function kmod_disks_getPartitions(disk: Disk) {
+  const sectors = kdriver_dev_ata_readSectors(disk.descriptor, 0, 1, 0);
+
+  const signature = (sectors[511]! << 8) | sectors[510]!;
+
+  if (signature !== 0xaa55) {
+    throw new Error("Invalid MBR signature");
+  }
+
+  const partitions = [];
+
+  // Parse partition table (starts at offset 446, 4 entries of 16 bytes each)
+  for (let i = 0; i < 4; i++) {
+    const offset = 446 + i * 16;
+
+    const status = sectors[offset]!;
+    const partitionType = sectors[offset + 4]!;
+
+    // LBA of first sector (little-endian)
+    const lbaStart =
+      sectors[offset + 8]! |
+      (sectors[offset + 9]! << 8) |
+      (sectors[offset + 10]! << 16) |
+      (sectors[offset + 11]! << 24);
+
+    // Number of sectors (little-endian)
+    const sectorCount =
+      sectors[offset + 12]! |
+      (sectors[offset + 13]! << 8) |
+      (sectors[offset + 14]! << 16) |
+      (sectors[offset + 15]! << 24);
+
+    // Skip empty partition entries
+    if (partitionType === 0 || sectorCount === 0) {
+      continue;
+    }
+
+    partitions.push({
+      index: i,
+      bootable: status === 0x80,
+      type: partitionType,
+      lbaStart: lbaStart,
+      sectors: sectorCount,
+      size: sectorCount * 512,
+    });
+
+    Logger.log(
+      "[Disk] Partition " +
+        i +
+        ": Type=0x" +
+        partitionType.toString(16) +
+        " " +
+        "LBA=" +
+        lbaStart +
+        " Sectors=" +
+        sectorCount +
+        " " +
+        "Bootable=" +
+        (status === 0x80)
+    );
+  }
+
+  return partitions;
+}
--- a/src/os/src/kernel/modules/drivers/drivers.kmod.ts
+++ b/src/os/src/kernel/modules/drivers/drivers.kmod.ts
@@ -1,7 +1,14 @@
+import { kdriver_dev_ata_init } from "../../drivers/dev/ata";
+import { kdriver_dev_keyboard_init } from "../../drivers/dev/keyboard";
 import { kdriver_dev_pci_init } from "../../drivers/dev/pci";
 import { kdriver_etc_serial_init } from "../../drivers/etc/serial";

-const drivers = [kdriver_etc_serial_init, kdriver_dev_pci_init];
+const drivers = [
+  kdriver_etc_serial_init,
+  kdriver_dev_pci_init,
+  kdriver_dev_keyboard_init,
+  kdriver_dev_ata_init,
+];

 export function kmod_drivers_init(): void {}

--- a/src/os/src/kernel/modules/filesystem/filesystem.kmod.ts
+++ b/src/os/src/kernel/modules/filesystem/filesystem.kmod.ts
@@ -1,4 +1,5 @@
 import { Logger } from "../../../lib/libstd/logger/logger.kmod";
+import { Path } from "../../../lib/libstd/path";
 import type {
  KFilesystemDriver,
  KFilesystemEntity,
@@ -48,24 +49,42 @@ export function kmod_filesystem_stripMountpoint(
  return p.slice(mount.mountpoint.length) || "/";
 }

+export function kmod_filesystem_lsMountAsFsEntity() {
+  let out: KFilesystemEntity[] = [];
+
+  for (let i = 0; i < kmod_filesystem_data.length; i++) {
+    const mount = kmod_filesystem_data[i]!;
+
+    out.push({
+      name: Path.filename(mount.mountpoint),
+      path: mount.mountpoint,
+      type: "folder",
+      size: 0,
+      contents: 0,
+    });
+  }
+
+  return out;
+}
+
 export function kmod_filesystem_listDir(
  path: string
 ): KFilesystemEntity[] | null {
  const mount = kmod_filesystem_findMount(path);
-  if (!mount) return null;
+  if (!mount) return kmod_filesystem_lsMountAsFsEntity();

  const strippedPath = kmod_filesystem_stripMountpoint(mount, path);

  return mount.driver.listDir(strippedPath);
 }

-export function kmod_filesystem_readFile(path: string): unknown {
+export function kmod_filesystem_readFile(path: string): number[] | null {
  const mount = kmod_filesystem_findMount(path);
  if (!mount) return null;

  const strippedPath = kmod_filesystem_stripMountpoint(mount, path);

-  return mount.driver.readFile(strippedPath);
+  return mount.driver.readFile(strippedPath) as number[];
 }

 export function kmod_filesystem_writeFile(
@@ -109,3 +128,9 @@ export function kmod_filesystem_stat(path: string): KFilesystemStat | null {

  return mount.driver.stat(strippedPath);
 }
+
+export function kmod_filesystem_directRead(
+  path: string,
+  count: number,
+  offset: number
+) {}
--- a/src/os/src/kernel/modules/graphics/vga.ts
+++ b/src/os/src/kernel/modules/graphics/vga.ts
@@ -6,12 +6,17 @@ import {
 } from "./config";

 let kmod_graphics_vga_lineBuf: string[] = [];
+let init = false;

 export function kmod_graphics_vga_init() {
+  init = true;
+
  kmod_graphics_vga_clear();
 }

 export function kmod_graphics_vga_pushLine(line: string) {
+  if (!init) return;
+
  kmod_graphics_vga_lineBuf.push(line);

  if (kmod_graphics_vga_lineBuf.length > CFG_KMOD_GRAPHICS_VGA_HEIGHT) {
@@ -21,7 +26,21 @@ export function kmod_graphics_vga_pushLine(line: string) {
  kmod_graphics_vga_printLines();
 }

+export function kmod_graphics_vga_setLastLine(line: string) {
+  if (!init) return;
+
+  if (kmod_graphics_vga_lineBuf.length === 0) {
+    kmod_graphics_vga_lineBuf.push(line);
+  } else {
+    kmod_graphics_vga_lineBuf[kmod_graphics_vga_lineBuf.length - 1] = line;
+  }
+
+  kmod_graphics_vga_printLines();
+}
+
 export function kmod_graphics_vga_printLines() {
+  if (!init) return;
+
  for (let y = 0; y < CFG_KMOD_GRAPHICS_VGA_HEIGHT; y++) {
    const line = kmod_graphics_vga_lineBuf[y] || "";

@@ -49,6 +68,8 @@ export function kmod_graphics_vga_getColorAddr(x: number, y: number): number {
 }

 export function kmod_graphics_vga_clear() {
+  if (!init) return;
+
  kmod_graphics_vga_lineBuf = [];

  for (let y = 0; y < CFG_KMOD_GRAPHICS_VGA_HEIGHT; y++) {
@@ -64,6 +85,8 @@ export function kmod_graphics_vga_writeChar(
  char: string,
  color: number
 ) {
+  if (!init) return;
+
  const charAddr = kmod_graphics_vga_getCharAddr(x, y);
  const colorAddr = kmod_graphics_vga_getColorAddr(x, y);

--- a/src/os/src/kernel/modules/terminal/input.ts
+++ b/src/os/src/kernel/modules/terminal/input.ts
@@ -0,0 +1,28 @@
+import type { Keycode } from "../../../config/keyboard";
+
+const kmod_terminal_input_keyboardInputHandlers: Array<
+  (keycode: keyof typeof Keycode) => void
+> = [];
+
+export function kmod_terminal_input_init(): void {}
+
+export function kmod_terminal_input_onKeyboardInput(
+  handler: (keycode: keyof typeof Keycode) => void
+): () => void {
+  kmod_terminal_input_keyboardInputHandlers.push(handler);
+
+  return function () {
+    const index = kmod_terminal_input_keyboardInputHandlers.indexOf(handler);
+    if (index !== -1) {
+      kmod_terminal_input_keyboardInputHandlers.splice(index, 1);
+    }
+  };
+}
+
+export function kmod_terminal_input_handleKeyboardInput(
+  keycode: keyof typeof Keycode
+): void {
+  for (let i = 0; i < kmod_terminal_input_keyboardInputHandlers.length; i++) {
+    kmod_terminal_input_keyboardInputHandlers[i]!(keycode);
+  }
+}
--- a/src/os/src/kernel/modules/terminal/terminal.kmod.ts
+++ b/src/os/src/kernel/modules/terminal/terminal.kmod.ts
@@ -0,0 +1 @@
+export * from "./input";
--- a/src/os/src/kernel/utils/block_cache.ts
+++ b/src/os/src/kernel/utils/block_cache.ts
@@ -0,0 +1,192 @@
+interface Block {
+  key: number;
+  hashNext: Block | null;
+  freeNext: Block | null;
+  freePrev: Block | null;
+  payload: number[]; // Array instead of Uint8Array
+}
+
+interface BlockCacheState {
+  payloadSize: number;
+  blocks: number;
+  hashTable: (Block | null)[];
+  blocksMemory: Block[];
+  front: Block | null;
+  rear: Block | null;
+}
+
+export function blockCache_create(): BlockCacheState {
+  return {
+    payloadSize: 0,
+    blocks: 0,
+    hashTable: [],
+    blocksMemory: [],
+    front: null,
+    rear: null,
+  };
+}
+
+export function blockCache_init(
+  state: BlockCacheState,
+  payloadSize: number,
+  blocks: number
+): void {
+  state.payloadSize = payloadSize;
+  state.blocks = blocks;
+
+  // Initialize hash table (2x the number of blocks)
+  var hashTableSize = blocks * 2;
+  state.hashTable = [];
+  for (var i = 0; i < hashTableSize; i++) {
+    state.hashTable.push(null);
+  }
+
+  // Allocate blocks in memory
+  state.blocksMemory = [];
+  var previous: Block | null = null;
+
+  for (var i = 0; i < blocks; i++) {
+    var payload: number[] = [];
+    for (var j = 0; j < payloadSize; j++) {
+      payload.push(0);
+    }
+
+    var block: Block = {
+      key: 0,
+      hashNext: null,
+      freeNext: null,
+      freePrev: previous,
+      payload: payload,
+    };
+
+    if (previous) {
+      previous.freeNext = block;
+    }
+
+    state.blocksMemory.push(block);
+    previous = block;
+  }
+
+  state.front = state.blocksMemory[0];
+  state.rear = previous;
+}
+
+export function blockCache_blockIfPresent(
+  state: BlockCacheState,
+  deviceOrKey: number,
+  sector?: number
+): number[] | null {
+  var origKey =
+    sector !== undefined ? deviceOrKey * 65536 + sector : deviceOrKey;
+
+  var key = origKey % (state.blocks * 2);
+
+  if (state.hashTable[key]) {
+    var entry = state.hashTable[key];
+
+    while (entry) {
+      if (entry.key === origKey) {
+        return entry.payload;
+      }
+      entry = entry.hashNext;
+    }
+  }
+
+  return null;
+}
+
+export function blockCache_block(
+  state: BlockCacheState,
+  deviceOrKey: number,
+  sectorOrValid: number | { valid: boolean },
+  valid?: { valid: boolean }
+): number[] {
+  var origKey: number;
+  var validRef: { valid: boolean };
+
+  if (valid !== undefined) {
+    // block(state, device, sector, valid)
+    origKey = deviceOrKey * 65536 + (sectorOrValid as number);
+    validRef = valid;
+  } else {
+    // block(state, key, valid)
+    origKey = deviceOrKey;
+    validRef = sectorOrValid as { valid: boolean };
+  }
+
+  var key = origKey % (state.blocks * 2);
+
+  // Try to get from hash table
+  var direct = blockCache_blockIfPresent(state, origKey);
+  if (direct) {
+    validRef.valid = true;
+    return direct;
+  }
+
+  // Allocate new block from front of free list
+  validRef.valid = false;
+
+  if (!state.front) {
+    throw new Error("No free blocks available");
+  }
+
+  var blk = state.front;
+
+  // Remove block from previous hash table entry if it was used
+  if (blk.key) {
+    var previousKey = blk.key % (state.blocks * 2);
+
+    if (state.hashTable[previousKey] === blk) {
+      state.hashTable[previousKey] = blk.hashNext;
+    } else {
+      var entry = state.hashTable[previousKey];
+      var found = false;
+
+      while (entry && entry.hashNext) {
+        if (entry.hashNext === blk) {
+          entry.hashNext = blk.hashNext;
+          found = true;
+          break;
+        }
+        entry = entry.hashNext;
+      }
+
+      if (!found) {
+        throw new Error("The hash table chain did not contain the used block");
+      }
+    }
+  }
+
+  // Insert block into hash table
+  blk.key = origKey;
+
+  if (!state.hashTable[key]) {
+    blk.hashNext = null;
+    state.hashTable[key] = blk;
+  } else {
+    // Insert at end of chain
+    var entry = state.hashTable[key]!;
+
+    while (entry.hashNext) {
+      entry = entry.hashNext;
+    }
+
+    entry.hashNext = blk;
+    blk.hashNext = null;
+  }
+
+  // Move block to rear of free list
+  state.front = state.front.freeNext;
+  if (state.front) {
+    state.front.freePrev = null;
+  }
+
+  if (state.rear) {
+    state.rear.freeNext = blk;
+  }
+  blk.freePrev = state.rear;
+  blk.freeNext = null;
+  state.rear = blk;
+
+  return blk.payload;
+}
--- a/src/os/src/lib/libstd/logger/logger.kmod.ts
+++ b/src/os/src/lib/libstd/logger/logger.kmod.ts
@@ -1,12 +1,27 @@
 import { charc } from "../../libts/byte";
 import { kdriver_etc_serial_transmit } from "../../../kernel/drivers/etc/serial";
+import {
+  kmod_graphics_vga_pushLine,
+  kmod_graphics_vga_setLastLine,
+} from "../../../kernel/modules/graphics/vga";

 export const Logger = {
  log(message: string) {
+    kmod_graphics_vga_pushLine(message);
+
    for (let i = 0; i < message.length; i++) {
      kdriver_etc_serial_transmit(charc(message[i]!));
    }

    kdriver_etc_serial_transmit(charc("\n"));
  },
+  update(message: string) {
+    kmod_graphics_vga_setLastLine(message);
+
+    kdriver_etc_serial_transmit(charc("\x1b[2K"));
+    kdriver_etc_serial_transmit(charc("\r"));
+    for (let i = 0; i < message.length; i++) {
+      kdriver_etc_serial_transmit(charc(message[i]!));
+    }
+  },
 };
--- a/src/os/src/lib/libts/byte.ts
+++ b/src/os/src/lib/libts/byte.ts
@@ -1,3 +1,15 @@
+export function bytein(port: number): number {
+  return $bytein(port);
+}
+
+export function byteout(port: number, value: number): void {
+  $byteout(port, value);
+}
+
 export function charc(char: string): number {
  return char.charCodeAt(0);
 }
+
+export function cchar(code: number): string {
+  return String.fromCharCode(code)[0]!;
+}
--- a/src/os/src/lib/libts/exec.ts
+++ b/src/os/src/lib/libts/exec.ts
@@ -0,0 +1,3 @@
+export function iexec(code: string) {
+  return $isolatedExec(code);
+}
--- a/src/os/src/lib/libts/uint_arr.ts
+++ b/src/os/src/lib/libts/uint_arr.ts
@@ -0,0 +1,9 @@
+export function uiarrtostr(a: number[]) {
+  let s = "";
+
+  for (let i = 0; i < a.length; i++) {
+    s += String.fromCharCode(a[i]!);
+  }
+
+  return s;
+}
--- a/src/os/src/lib/libts/word.ts
+++ b/src/os/src/lib/libts/word.ts
@@ -0,0 +1,7 @@
+export function wordin(w: number): number {
+  return $wordin(w);
+}
+
+export function wordout(w: number, value: number): void {
+  $wordout(w, value);
+}
--- a/src/os/src/lib/sys/env.ts
+++ b/src/os/src/lib/sys/env.ts
@@ -0,0 +1,22 @@
+import { kmod_filesystem_readFile } from "../../kernel/modules/filesystem/filesystem.kmod";
+import { uiarrtostr } from "../libts/uint_arr";
+
+export function getEnv(key: string): string | null {
+  const data = uiarrtostr(kmod_filesystem_readFile("/disk/uenv")!);
+  const lines = data.split("\n");
+
+  for (let i = 0; i < lines.length; i++) {
+    const kv = lines[i]!.split("=");
+
+    if (kv[0] == key) return kv[1]!;
+  }
+
+  return null;
+}
+
+export function getPathEnv(): string[] | null {
+  const path = getEnv("PATH");
+  if (!path) return null;
+
+  return path.split(":");
+}
--- a/src/os/src/oskrnl/app/launcher.ts
+++ b/src/os/src/oskrnl/app/launcher.ts
@@ -0,0 +1,5 @@
+import { kmod_app_run } from "../../kernel/modules/app/app.kmod";
+
+export function oskrnl_app_launcher_run(path: string, args: string) {
+  return kmod_app_run(path, args);
+}
--- a/src/os/src/oskrnl/app/proc.ts
+++ b/src/os/src/oskrnl/app/proc.ts
@@ -0,0 +1,25 @@
+import {
+  kmod_app_proc_addExitListener,
+  kmod_app_proc_exit,
+  kmod_app_proc_getArgs,
+  kmod_app_proc_running,
+} from "../../kernel/modules/app/app.kmod";
+
+export function oskrnl_app_proc_getArgs(pid: string): string {
+  return kmod_app_proc_getArgs(pid);
+}
+
+export function oskrnl_app_proc_addExitListener(
+  pid: string,
+  listener: () => void
+): void {
+  kmod_app_proc_addExitListener(pid, listener);
+}
+
+export function oskrnl_app_proc_exit(pid: string): void {
+  kmod_app_proc_exit(pid);
+}
+
+export function oskrnl_app_proc_running(pid: string): boolean {
+  return kmod_app_proc_running(pid);
+}
--- a/src/os/src/oskrnl/console/console.ts
+++ b/src/os/src/oskrnl/console/console.ts
@@ -0,0 +1,9 @@
+import { Logger } from "../../lib/libstd/logger/logger.kmod";
+
+export function oskrnl_console_log(data: any) {
+  Logger.log(String(data));
+}
+
+export function oskrnl_console_update(data: any) {
+  Logger.update(String(data));
+}
--- a/src/os/src/oskrnl/index.ts
+++ b/src/os/src/oskrnl/index.ts
@@ -0,0 +1,22 @@
+import { oskrnl_app_launcher_run } from "./app/launcher";
+import {
+  oskrnl_app_proc_addExitListener,
+  oskrnl_app_proc_exit,
+  oskrnl_app_proc_getArgs,
+  oskrnl_app_proc_running,
+} from "./app/proc";
+import { oskrnl_console_log, oskrnl_console_update } from "./console/console";
+import { oskrnl_input_onKeyPress } from "./input/input";
+
+export function oskrnl_register() {
+  (globalThis as any).__oskrnl = {
+    console_log: oskrnl_console_log,
+    console_update: oskrnl_console_update,
+    input_onKeyPress: oskrnl_input_onKeyPress,
+    app_launcher_run: oskrnl_app_launcher_run,
+    app_proc_getArgs: oskrnl_app_proc_getArgs,
+    app_proc_addExitListener: oskrnl_app_proc_addExitListener,
+    app_proc_exit: oskrnl_app_proc_exit,
+    app_proc_running: oskrnl_app_proc_running,
+  };
+}
--- a/src/os/src/oskrnl/input/input.ts
+++ b/src/os/src/oskrnl/input/input.ts
@@ -0,0 +1,24 @@
+import {
+  kmod_app_proc_generateHandle,
+  kmod_app_proc_registerHandle,
+  kmod_app_proc_running,
+  kmod_app_proc_addExitListener,
+} from "../../kernel/modules/app/app.kmod";
+import { kmod_terminal_input_onKeyboardInput } from "../../kernel/modules/terminal/input";
+
+export function oskrnl_input_onKeyPress(
+  pid: string,
+  handler: (key: string) => void
+) {
+  kmod_app_proc_registerHandle(pid, kmod_app_proc_generateHandle());
+  const removeHandler = kmod_terminal_input_onKeyboardInput(function (
+    key: string
+  ) {
+    const running = kmod_app_proc_running(pid);
+    if (!running) return;
+
+    handler(key);
+  });
+
+  kmod_app_proc_addExitListener(pid, removeHandler);
+}
--- a/src/os/src/programs/tsdos/index.ts
+++ b/src/os/src/programs/tsdos/index.ts
@@ -1 +0,0 @@
-console.log("TS-DOS Program Started");
--- a/src/os/src/types/c/bindings.d.ts
+++ b/src/os/src/types/c/bindings.d.ts
@@ -1,5 +1,15 @@
 declare function $addrw(address: number, value: number): void;
 declare function $ptin(port: number): number;
 declare function $ptout(port: number, value: number): void;
+declare function $bytein(port: number): number;
+declare function $byteout(port: number, value: number): void;
 declare function $dwordin(port: number): number;
 declare function $dwordout(port: number, value: number): void;
+declare function $wordin(port: number): number;
+declare function $wordout(port: number, value: number): void;
+declare const $irqregister: (
+  irq: number,
+  handler: (irqNum: number) => void
+) => boolean;
+declare function $isolatedExec(code: string): number;
+declare function $destroyIsolatedHeap(handle: number): void;
--- a/src/os/src/types/dev/ata/drive.ts
+++ b/src/os/src/types/dev/ata/drive.ts
@@ -0,0 +1,11 @@
+export type AtaDriveDescriptor = {
+  controller: number;
+  drive: number;
+  present: boolean;
+  slave: number;
+  atapi: boolean;
+  model: string;
+  serial: string;
+  firmware: string;
+  size: number;
+};
--- a/src/os/src/types/dev/device.ts
+++ b/src/os/src/types/dev/device.ts
@@ -0,0 +1,4 @@
+export enum DeviceType {
+  BlockDevice,
+  CharDevice,
+}
--- a/src/os/src/types/filesystem/disk.ts
+++ b/src/os/src/types/filesystem/disk.ts
@@ -0,0 +1,13 @@
+import type { AtaDriveDescriptor } from "../dev/ata/drive";
+
+export type Disk = {
+  dnum: number;
+  type: DiskType;
+  descriptor: AtaDriveDescriptor;
+  name: string;
+};
+
+export enum DiskType {
+  ATA,
+  ATAPI,
+}
--- a/src/os/src/types/filesystem/fs.ts
+++ b/src/os/src/types/filesystem/fs.ts
@@ -1,3 +1,5 @@
+import type { DeviceType } from "../dev/device";
+
 export type KFilesystemMountdata = KFilesystemMount[];

 export type KFilesystemMount = {
@@ -5,6 +7,8 @@ export type KFilesystemMount = {
  driver: KFilesystemDriver;
 };

+export type KFilesystemDirectReadResponse = number[];
+
 export type KFilesystemDriver = {
  id: string;
  init: () => void;
@@ -13,7 +17,13 @@ export type KFilesystemDriver = {
  writeFile(path: string, content: unknown): void;
  createFile(path: string, content: unknown): void;
  mkdir(path: string): void;
+  rm(path: string): void;
  stat(path: string): KFilesystemStat | null;
+  directRead?(
+    path: string,
+    count: number,
+    offset: number
+  ): KFilesystemDirectReadResponse;
 };

 export type KFilesystemMemdata = KFilesystemEntity[];
@@ -31,3 +41,11 @@ export type KFilesystemStat = {
  type: "file" | "folder";
  size: number;
 };
+
+export type KFilesystemDevice = KFilesystemEntity & {
+  dtype: DeviceType;
+  driver: unknown;
+  data: unknown;
+};
+
+export type KFilesystemMemdev = (KFilesystemDevice | KFilesystemEntity)[];
--- a/src/os/src/types/interrupt.ts
+++ b/src/os/src/types/interrupt.ts
@@ -0,0 +1,9 @@
+export type KInterruptHandler = (
+  interruptNumber: number,
+  data?: unknown
+) => void;
+
+export type KInterrupt = {
+  handler: KInterruptHandler;
+  data: unknown;
+};
--- a/src/os/src/types/utils/block_cache.ts
+++ b/src/os/src/types/utils/block_cache.ts
@@ -0,0 +1,4 @@
+export type BlockCache = {
+  payload_size: number;
+  blocks: number;
+};
--- a/test-hdd/apps/echo/index.js
+++ b/test-hdd/apps/echo/index.js
@@ -0,0 +1 @@
+__oskrnl.console_log(__oskrnl.app_proc_getArgs(__oskrnl_procd_pid));
--- a/test-hdd/apps/echo/meta.lam
+++ b/test-hdd/apps/echo/meta.lam
@@ -0,0 +1,5 @@
+{
+  "app:name": "echo",
+  "app:version": "1.0.0",
+  "app:entrypoint": "index.js"
+}
--- a/test-hdd/apps/tysh/index.js
+++ b/test-hdd/apps/tysh/index.js
@@ -0,0 +1,31 @@
+__oskrnl.console_log("> ");
+
+var input = "";
+var pid = "";
+
+__oskrnl.input_onKeyPress(__oskrnl_procd_pid, function (key) {
+  if (pid != "" && __oskrnl.app_proc_running(pid)) return;
+
+  if (key == "Backspace") input = input.slice(0, -1);
+  else if (key == "Enter") {
+    process();
+    return;
+  } else input += key.toLowerCase();
+
+  __oskrnl.console_update("> " + input);
+});
+
+function process() {
+  var app = input.split(" ")[0];
+  var args = input.split(" ").slice(1);
+  pid = __oskrnl.app_launcher_run(app, args.join(" "));
+  __oskrnl.app_proc_addExitListener(pid, function () {
+    input = "";
+    __oskrnl.console_log("> ");
+  });
+
+  if (!__oskrnl.app_proc_running(pid)) {
+    input = "";
+    __oskrnl.console_log("> ");
+  }
+}
--- a/test-hdd/apps/tysh/meta.lam
+++ b/test-hdd/apps/tysh/meta.lam
@@ -0,0 +1,5 @@
+{
+  "app:name": "tysh",
+  "app:version": "1.0.0",
+  "app:entrypoint": "index.js"
+}
--- a/test-hdd/apps/wfkey/index.js
+++ b/test-hdd/apps/wfkey/index.js
@@ -0,0 +1,6 @@
+__oskrnl.input_onKeyPress(__oskrnl_procd_pid, function (key) {
+  if (key == __oskrnl.app_proc_getArgs(__oskrnl_procd_pid)[0].toUpperCase()) {
+    __oskrnl.app_proc_exit(__oskrnl_procd_pid);
+    return;
+  }
+});
--- a/test-hdd/apps/wfkey/meta.lam
+++ b/test-hdd/apps/wfkey/meta.lam
@@ -0,0 +1,5 @@
+{
+  "app:name": "wfkey",
+  "app:version": "1.0.0",
+  "app:entrypoint": "index.js"
+}
--- a/test-hdd/uenv
+++ b/test-hdd/uenv
@@ -0,0 +1 @@
+PATH=/disk/apps
--- a/test-hdd/ushellc
+++ b/test-hdd/ushellc
@@ -0,0 +1 @@
+/disk/apps/tysh
Author	SHA1	Message	Date
Martin Petr	e2184bdc27	Somewhat working	2025-11-29 13:34:21 +01:00
Martin Petr	5b8804621c	Add source	2025-11-28 22:50:05 +01:00
Martin Petr	aea99102cc	Start EFI port	2025-11-28 22:42:14 +01:00
Martin Petr	1775af99b0	Add process manager	2025-11-23 18:52:51 +01:00
Martin Petr	6f303bf656	Implement system env and app resolver	2025-11-23 11:54:05 +01:00
Martin Petr	4bf79e358a	Add shell and echo app	2025-11-22 23:43:42 +01:00
Martin Petr	29a5cacdea	Add app launcher and oskrnl	2025-11-22 22:22:28 +01:00
Martin Petr	34fc6e8d3a	Update readme	2025-11-22 20:24:43 +01:00
Martin Petr	304dda0adf	Add disk driver	2025-11-21 22:57:51 +01:00
Martin Petr	18092face9	Add interrupts and keyboard driver	2025-11-20 21:13:50 +01:00
				`@@ -0,0 +1 @@`
				`__oskrnl.console_log(__oskrnl.app_proc_getArgs(__oskrnl_procd_pid));`