📄 a.asm
字号:
STACK1 SEGMENT STACK
DW 64(?)
STACK1 ENDS
CODE SEGMENT
ASSUME CS:CODE
START: MOV CX,000AH
MOV SI,300AH
MOV BL,0FFH
A1: CMP BL,0FFH
JNZ A4
MOV BL,00H
DEC CX
JZ A4
PUSH SI
PUSH CX
A2: DEC SI
MOV AL,[SI]
DEC SI
CMP AL,[SI]
JA A3
XCHG AL,[SI]
MOV [SI+01H],AL
MOV BL,0FFH
A3: INC SI
LOOP A2
POP CX
POP SI
JMP A1
A4: INT 03H
CODE ENDS
END START
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