;Task_4.asm		習題3_3  第4題
;4.	數據段中存放有一個無符號字數據N_BIN，將其轉換成非壓縮格式的BCD碼，存于N_BCD開始的單元中（高位在前）；

data	segment	para
	N_BIN	dw	8000H					;無符號字數據
	N_BCD	db	5	dup(0)				;存放非壓縮格式BCD碼
data	ends
ss_seg	segment	stack
	dw	50	dup(0)
ss_seg	ends
code	segment
	assume	cs:code,ds:data,ss:ss_seg
	main	proc	far
			mov		ax, data
			mov		ds, ax
			mov		si, N_BIN
			mov		cx, 16
	main1:	shl		si, 1
			mov		di, 5
	main2:	mov		al, N_BCD[di-1]
			adc		al, N_BCD[di-1]
			AAA
			mov		N_BCD[di-1], al
			dec		di
			jnz		main2
			loop	main1
			mov		ax, 4c00h
			int		21h
	main	endp
code	ends
	end		main