微机原理实验指导书(10)

微机

MOV DX，SI MOV BP，DI

MOV BX，COUNT

AD1：SUB BYTE PTR[SI+BX-1]，30H SUB BYTE PTR [DI+BX-1]，30H DEC BX JNZ AD1 MOV SI，DX MOV DI，BP

MOV CX，COUNT CLC

AD2： MOV AL，[SI] ADC AL，[DI] AAA

MOV [SI]，AL INC SI INC DI LOOP AD2 MOV SI，DX MOV DI，BP

MOV BX，COUNT

AD3：ADD BYTE PTR [SI+BX-1]，30H ADD BYPE PTR [DI+BX-1]，30H DEC BX JNZ AD3 RET ADDA ENDP CODE ENDS

END START

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