graphics.asm

参照MINIX3写的操作系统 用GCC+NASM+BOCHS开发

global SetPixel
SetPixel:
	mov ecx,[esp+12]		;color
	mov edi,[esp+4]	        ;y
	mov eax,[esp+8]	       ;x
	mov ebx,320
	mul ebx
	add eax,edi
	add eax,0a0000h
	mov esi,eax
	mov [esi],cx
	ret