www.pudn.com > ngcd080s.zip > EXTRACT8.ASM

	%include ".\src\helper.asm" 
 
	BITS32 
	 
	GLOBAL	_extract8 
	GLOBAL	_motorola_peek 
	GLOBAL	_motorola_poke 
	 
	SECTION	.text 
 
	AlignFunc 
	 
_extract8: 
	BEGIN 
	PUSHL	ebx 
	PUSHL	ecx 
	PUSHL	edi 
	PUSHL	esi 
	 
	mov	esi, [esp + ARGS] 
	mov	edi, [esp + ARGS + 4] 
		 
	mov	bh, byte [esi] 
	mov	bl, byte [esi+1] 
	mov	ch, byte [esi+2] 
	mov	cl, byte [esi+3] 
 
	%rep	4 
	xor	eax, eax 
	shr	ch, 1 
	rcl	al, 1 
	shr	cl, 1 
	rcl	al, 1 
	shr	bh, 1 
	rcl	al, 1 
	shr	bl, 1 
	rcl	al, 1 
	shr	ch, 1 
	rcl	ah, 1 
	shr	cl, 1 
	rcl	ah, 1 
	shr	bh, 1 
	rcl	ah, 1 
	shr	bl, 1 
	rcl	ah, 1 
	shl	ah, 4 
	or	al, ah 
	mov	[edi], al 
	inc	edi 
	%endrep 
	 
	pop	esi 
	pop	edi 
	pop	ecx 
	pop	ebx 
	ret 
 
	AlignFunc 
	 
_motorola_peek: 
	BEGIN 
	mov	eax, [esp + ARGS] 
	mov	eax, [eax] 
	bswap	eax 
	ret 
 
	AlignFunc 
	 
_motorola_poke: 
	BEGIN 
	PUSHL	ecx 
	PUSHL	edx 
 
	mov	edx, [esp + ARGS] 
	mov	ecx, [esp + ARGS + 4] 
	bswap	ecx 
	mov	[edx], ecx 
	pop	edx 
	pop	ecx 
	ret 
 
	AlignFunc