dos-vga-arena-shooter-game/test.asm

#PUBLIC doAThing_
#PUBLIC renderTopTile_
PUBLIC renderFloorTile_

.386
.model flat,c

.CODE
doAThing_:
  push ebp
  mov ebp, esp

  mov eax, [ebp + 8]

  pop ebp
  ret

renderTopTile_:
  push ebp
  mov ebp, esp
  push ebx

  mov eax, [ebp + 8]
  mov ebx, 20

_renderNextLine:
  mov DWORD PTR [eax], 02020202h
  mov DWORD PTR [eax + 4], 02020202h
  mov DWORD PTR [eax + 8], 02020202h
  mov DWORD PTR [eax + 12], 02020202h
  mov DWORD PTR [eax + 16], 02020202h

  add eax, 320
  dec ebx
  cmp ebx, 0
  jne _renderNextLine

  pop ebx
  pop ebp
  ret

renderFloorTile_:
  push ebp
  mov ebp, esp
  push ebx

  mov eax, [ebp + 8]
  mov ebx, 20

_renderNextFloorLine:
  mov DWORD PTR [eax], 04040404h
  mov DWORD PTR [eax + 4], 04040404h
  mov DWORD PTR [eax + 8], 04040404h
  mov DWORD PTR [eax + 12], 04040404h
  mov DWORD PTR [eax + 16], 04040404h

  add eax, 320
  dec ebx
  cmp ebx, 0
  jne _renderNextFloorLine

_done:
  pop ebx
  pop ebp
  ret

end