sr51.asm

这是汇编基本的程序主要是熟悉汇编的语法

STACK   SEGMENT  STACK
        DW       64 DUP(?)
STACK   ENDS
CODE    SEGMENT
        ASSUME   CS:CODE
START:  MOV      AX,0000H
	MOV	 DS,AX
	MOV	 SI,3000H
	MOV  	 CX,0008H
	CALL	 MYSUB1
	JMP      $
MYSUB1  PROC
	PUSH     SI
	PUSH     CX
	MOV	 DH,[SI]
	MOV      DL,[SI]
	MOV	 BX,0000H

LAB1:	CMP      CX,1
	JZ       LAB3
        MOV      BH,[SI+1]
	CMP      BH,DH
	JA	 A1
	CMP      BH,DL
	JB       A2
	JMP	 LAB2
A1:	XCHG	 DH,BH
	JMP      LAB2
A2:	XCHG     DL,BH
LAB2:   INC      SI
        DEC      CX
        JMP      LAB1
LAB3:	POP      CX
        POP      SI
	RET
MYSUB1	ENDP
CODE	ENDS	
	END	 START