| 474,6 → 474,9 |
|---|
| cmp ax,0x004f |
| mov si, novesa-0x10000 |
| jnz @f |
| mov bx, word [es:di+0x12] |
| shl ebx,16 |
| mov [es:0x9050], ebx |
| mov ax,[es:di+4] |
| add ax,'0'*256+'0' |
| mov si,vervesa-0x10000 |
| 824,7 → 827,7 |
|---|
| mov al, 32 ; BPP |
| jb @f |
| mov [es:0x9000], al |
| mov dword [es:0x9018], 0x800000 |
| mov dword [es:0x9018], 0xFFFFFFFF; 0x800000 |
| @@: |
| mov [es:0x9008],bx |
| mov [es:0x900A],cx |
| 1230,37 → 1233,41 |
|---|
| ; PAGE TABLE |
| |
| push dword [es:0x9018] |
| |
| map_mem equ 64 ; amount of memory to map |
| |
| ; |
| ; mmap_mem equ 64 ; amount of memory to map |
| ; |
| push 0x6000 |
| pop es ; es:di = 6000:0 |
| xor di,di |
| mov cx,256*map_mem ; Map (mapmem) M |
| ; initialize as identity mapping |
| xor eax, eax |
| call pagetable_set |
| |
| |
| ; xor di,di |
| ; mov cx,256*mmap_mem ; Map (mapmem) M |
| ;; initialize as identity mapping |
| ; xor eax, eax |
| ; call pagetable_set |
| ; |
| ; |
| ; 4 KB PAGE DIRECTORY |
| |
| ; |
| push 0x7F00 |
| pop es ; es:di = 7F00:0 |
| xor di, di |
| mov cx, 64 / 4 |
| mov eax, 0x60007 ; for 0 M |
| call pagetable_set |
| xor si,si |
| mov di,second_base_address shr 20 |
| mov cx,64/2 |
| rep movs word [es:di], [es:si] |
| ; xor di, di |
| ; mov cx, 64 / 4 |
| ; mov eax, 0x60007 ; for 0 M |
| ; call pagetable_set |
| ; xor si,si |
| ; mov di,second_base_address shr 20 |
| ; mov cx,64/2 |
| ; rep movs word [es:di], [es:si] |
| |
| mov eax, 0x7F000 +8+16 ; Page directory and enable caches |
| mov cr3, eax |
| ; mov eax, 0x7F000 +8+16 ; Page directory and enable caches |
| ; mov cr3, eax |
| |
| ; SET GRAPHICS |
| |
| pop es |
| |
| xor ax, ax |
| mov es, ax |
| |
| mov ax,[es:0x9008] ; vga & 320x200 |
| mov bx, ax |
| cmp ax,0x13 |