| 166,6 → 166,7 |
|---|
| ret |
| endp |
| |
| align 4 |
| proc map_io_mem stdcall, base:dword, size:dword, flags:dword |
| |
| push ebx |
| 358,7 → 359,9 |
|---|
| cmp dword [LFBAddress], -1 |
| jne @f |
| mov [BOOT_VAR+0x901c],byte 2 |
| stdcall alloc_pages, (0x280000 / 4096) |
| ; max VGA=640*480*4=1228800 bytes |
| ; + 32*640*4=81920 bytes for mouse pointer |
| stdcall alloc_pages, ((1228800+81920)/4096) |
| |
| push eax |
| call alloc_page |
| 366,7 → 369,9 |
|---|
| pop eax |
| or eax, PG_UW |
| mov ebx, LFB_BASE |
| mov ecx, 0x280000 / 4096 |
| ; max VGA=640*480*4=1228800 bytes |
| ; + 32*640*4=81920 bytes for mouse pointer |
| mov ecx, (1228800+81920)/4096 |
| call commit_pages |
| mov [LFBAddress], dword LFB_BASE |
| ret |
| 470,7 → 475,8 |
|---|
| pop eax |
| call free_page |
| |
| .next: add edi, 1 |
| .next: |
| add edi, 1 |
| cmp edi, esi |
| jb @B |
| |
| 797,7 → 803,8 |
|---|
| ; and eax, 0xFFFFF000 |
| ; stdcall map_page, edi, eax |
| |
| @@: mov edi, [lin_addr] |
| @@: |
| mov edi, [lin_addr] |
| and edi, 0xFFFFF000 |
| mov ecx, [buf_size] |
| add ecx, 4095 |
| 857,7 → 864,8 |
|---|
| jz .exit |
| stdcall map_page,edi,eax,PG_UW |
| |
| @@: mov edi, [lin_addr] |
| @@: |
| mov edi, [lin_addr] |
| and edi, 0xFFFFF000 |
| mov ecx, [buf_size] |
| add ecx, 4095 |
| 988,7 → 996,8 |
|---|
| add edx, 4095 |
| and edx, not 4095 |
| |
| .touch: mov eax, [ecx] |
| .touch: |
| mov eax, [ecx] |
| add ecx, 0x1000 |
| cmp ecx, edx |
| jb .touch |
| 1299,6 → 1308,11 |
|---|
| @@: |
| ret |
| |
| .26: |
| stdcall user_unmap, ecx, edx, esi |
| mov [esp+32], eax |
| ret |
| |
| .fail: |
| xor eax, eax |
| mov [esp+32], eax |
| 1321,8 → 1335,9 |
|---|
| dd f68.21 ; load_driver |
| dd f68.22 ; shmem_open |
| dd f68.23 ; shmem_close |
| dd f68.24 |
| dd f68.25 |
| dd f68.24 ; set exception handler |
| dd f68.25 ; unmask exception |
| dd f68.26 ; user_unmap |
| |
| |
| align 4 |