diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/entry.asm | 2 | ||||
| -rw-r--r-- | src/lib/def.h | 18 | ||||
| -rw-r--r-- | src/main.c | 19 |
3 files changed, 34 insertions, 5 deletions
diff --git a/src/entry.asm b/src/entry.asm index 487e4b4..d17246d 100644 --- a/src/entry.asm +++ b/src/entry.asm @@ -51,7 +51,7 @@ %define A20_EXCLUDE_BIT 0xfe ; Bit 0 may be write-only, causing a crash ; GDT constants (bitmap) -%define GDT_MAX_LIMIT 0xffff +%define GDT_MAX_LIMIT 0xffff ; I just use the max limit lel %define GDT_PRESENT 0b10000000 ; Is present %define GDT_DESCRIPTOR 0b00010000 ; Descriptor type, set for code/data %define GDT_EXECUTABLE 0b00001000 ; Can be executed diff --git a/src/lib/def.h b/src/lib/def.h new file mode 100644 index 0000000..dc3cc55 --- /dev/null +++ b/src/lib/def.h @@ -0,0 +1,18 @@ +#ifndef DEF_H +#define DEF_H + +typedef signed char s8; +typedef unsigned char u8; + +typedef signed short s16; +typedef unsigned short u16; + +typedef signed int s32; +typedef unsigned int u32; + +typedef signed long long s64; +typedef unsigned long long u64; + +#define NULL ((void *)0) + +#endif @@ -1,11 +1,22 @@ -int main() +#include <def.h> + +void clear(); + +// This must kinda be at the top +int main(u32 *mem_info) +{ + mem_info++; // TODO: Use the mmap! + clear(); + while (1) { + }; + return 0; +} + +void clear() { char *vga = (char *)0x000B8000; for (long i = 0; i < 80 * 25; i++) { *vga++ = 0; *vga++ = 0; } - while (1) { - }; - return 0; } |