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; ------------------------------------------------------------------------ 
; 显示 AL 中的数字 
; ------------------------------------------------------------------------ 
DispAL: 
	push	ecx 
	push	edx 
	push	edi 
 
	mov	edi, [dwDispPos] 
 
	mov	ah, 0Fh			; 0000b: 黑底    1111b: 白字 
	mov	dl, al 
	shr	al, 4 
	mov	ecx, 2 
.begin: 
	and	al, 01111b 
	cmp	al, 9 
	ja	.1 
	add	al, '0' 
	jmp	.2 
.1: 
	sub	al, 0Ah 
	add	al, 'A' 
.2: 
	mov	[gs:edi], ax 
	add	edi, 2 
 
	mov	al, dl 
	loop	.begin 
	;add	edi, 2 
 
	mov	[dwDispPos], edi 
 
	pop	edi 
	pop	edx 
	pop	ecx 
 
	ret 
; DispAL 结束------------------------------------------------------------- 
 
 
; ------------------------------------------------------------------------ 
; 显示一个整形数 
; ------------------------------------------------------------------------ 
DispInt: 
	mov	eax, [esp + 4] 
	shr	eax, 24 
	call	DispAL 
 
	mov	eax, [esp + 4] 
	shr	eax, 16 
	call	DispAL 
 
	mov	eax, [esp + 4] 
	shr	eax, 8 
	call	DispAL 
 
	mov	eax, [esp + 4] 
	call	DispAL 
 
	mov	ah, 07h			; 0000b: 黑底    0111b: 灰字 
	mov	al, 'h' 
	push	edi 
	mov	edi, [dwDispPos] 
	mov	[gs:edi], ax 
	add	edi, 4 
	mov	[dwDispPos], edi 
	pop	edi 
 
	ret 
; DispInt 结束------------------------------------------------------------ 
 
; ------------------------------------------------------------------------ 
; 显示一个字符串 
; ------------------------------------------------------------------------ 
DispStr: 
	push	ebp 
	mov	ebp, esp 
	push	ebx 
	push	esi 
	push	edi 
 
	mov	esi, [ebp + 8]	; pszInfo 
	mov	edi, [dwDispPos] 
	mov	ah, 0Fh 
.1: 
	lodsb 
	test	al, al 
	jz	.2 
	cmp	al, 0Ah	; 是回车吗? 
	jnz	.3 
	push	eax 
	mov	eax, edi 
	mov	bl, 160 
	div	bl 
	and	eax, 0FFh 
	inc	eax 
	mov	bl, 160 
	mul	bl 
	mov	edi, eax 
	pop	eax 
	jmp	.1 
.3: 
	mov	[gs:edi], ax 
	add	edi, 2 
	jmp	.1 
 
.2: 
	mov	[dwDispPos], edi 
 
	pop	edi 
	pop	esi 
	pop	ebx 
	pop	ebp 
	ret 
; DispStr 结束------------------------------------------------------------ 
 
; ------------------------------------------------------------------------ 
; 换行 
; ------------------------------------------------------------------------ 
DispReturn: 
	push	szReturn 
	call	DispStr			;printf("\n"); 
	add	esp, 4 
 
	ret 
; DispReturn 结束--------------------------------------------------------- 
 
 
; ------------------------------------------------------------------------ 
; 内存拷贝，仿 memcpy 
; ------------------------------------------------------------------------ 
; void* MemCpy(void* es:pDest, void* ds:pSrc, int iSize); 
; ------------------------------------------------------------------------ 
MemCpy: 
	push	ebp 
	mov	ebp, esp 
 
	push	esi 
	push	edi 
	push	ecx 
 
	mov	edi, [ebp + 8]	; Destination 
	mov	esi, [ebp + 12]	; Source 
	mov	ecx, [ebp + 16]	; Counter 
.1: 
	cmp	ecx, 0		; 判断计数器 
	jz	.2		; 计数器为零时跳出 
 
	mov	al, [ds:esi]		; ┓ 
	inc	esi			; ┃ 
					; ┣ 逐字节移动 
	mov	byte [es:edi], al	; ┃ 
	inc	edi			; ┛ 
 
	dec	ecx		; 计数器减一 
	jmp	.1		; 循环 
.2: 
	mov	eax, [ebp + 8]	; 返回值 
 
	pop	ecx 
	pop	edi 
	pop	esi 
	mov	esp, ebp 
	pop	ebp 
 
	ret			; 函数结束，返回 
; MemCpy 结束-------------------------------------------------------------