bcdjianfa.asm

来自「微机的程序~很多~如~BCD转换成二进制~加减法运算等」· 汇编 代码 · 共 31 行

STACK SEGMENT STACK
	  DW 64 DUP(?)
STACK ENDS
DATA SEGMENT
   X DW ?
   Y DW ?
   Z DW ?
DATA ENDS
CODE SEGMENT
	 ASSUME CS:CODE,DS:DATA
START: MOV AX,DATA
       MOV DS,AX
       MOV AH,00H
       SAHF
       MOV CX,0002H
       MOV SI,OFFSET X
       MOV DI,OFFSET Z
A1:    MOV AL,[SI]
       SBB AL,[SI+02H]
       DAS
       PUSHF
       AND AL,0FH
       POPF
       MOV [DI],AL
       INC DI
       INC SI
       LOOP A1
       INT 03H
CODE   ENDS
       END START