mul2x2.asm

来自「应用松翰母体写的一款电磁炉」· 汇编 代码 · 共 37 行

mul2x2:
	clr	result_l
	clr	result_ml
	clr	result_mh
	clr	result_h

	mov	a,multiplier_l
	mul	a,multiplicand_l
	mov	result_l,a
	mov	a,r
	mov	result_ml,a
	
	mov	a,multiplier_h
	mul	a,multiplicand_l
	add	result_ml,a
	mov	a,r
	adc	result_mh,a
	mov	a,#00h
	adc	result_h,a
	
	mov	a,multiplier_l
	mul	a,multiplicand_h
	add	result_ml,a
	mov	a,r
	adc	result_mh,a
	mov	a,#00h
	adc	result_h,a
	
	mov	a,multiplier_h
	mul	a,multiplicand_h
	add	result_mh,a
	mov	a,r
	adc	result_h,a
	
mul2x290:
	ret