dw2bin.asm

一个十六进制编辑器源代码,cool!

;将一个数值转换为二进制串
dw2bin proto :DWORD ,:DWORD 
.code
dw2bin proc uses ebx ecx edi nNum,lpBuf
	_tobin_:
		mov ebx,nNum
		mov ecx,1
		mov ah,'0'
		mov edi,lpBuf
		.while ecx<=32
			mov al,ah
			shl ebx,1
			jnc @1
			inc al
		@1:
			stosb
			.if !(ecx & 3);每4位为一组
				mov al,' '
				stosb
			.endif
			inc ecx
		.endw
		mov BYTE ptr [edi],0
		ret
dw2bin endp