POP AX RET ADDP ENDP ;¼õ·¨×Ó³ÌÐò SUBP PROC
PUSH AX MOV AX,X1 SUB AX,X2 MOV Y,AX POP AX RET SUBP ENDP ;³Ë·¨×Ó³ÌÐò MULP PROC
PUSH AX PUSH DX MOV AX,X1 MOV DX,X2 MUL DX MOV Y,AX POP DX POP AX RET MULP ENDP ;³ý·¨×Ó³ÌÐò DIVP PROC
PUSH AX PUSH BX PUSH DX MOV DX,0 MOV AX,X1 MOV BX,X2 DIV BX MOV Y,AX POP DX POP BX POP AX RET DIVP ENDP
;DISP PROC
ÏÔʾ×Ó³ÌÐò PUSH BX PUSH AX MOV BH,0
LEA SI,DISCODE
CALL BITP ; CMP CC,4 JZ QIAN
XÖеÄÊýÖµ°´Î»ÏÔʾ³öÀ´ ²âÊÔXλÊý £¬½« CMP CC,3 JZ BAI CMP CC,2 JZ SHI CMP CC,1 JMP G JMP NONE
QIAN: MOV AH,11100000B ;´ÓµÚʼÏÔʾ
4λ¿ª
MOV AL,AH OUT 44H,AL MOV BL,X[0] MOV AL,[SI+BX] OUT 42H,AL CALL DELY MOV AL,0 OUT 42H,AL
BAI: MOV AH,11010000B ;ʼÏÔʾ
MOV AL,AH OUT 44H,AL MOV BL,X[1] MOV AL,[SI+BX] OUT 42H,AL CALL DELY MOV AL,0 OUT 42H,AL
SHI: MOV AH,10110000B ;ʼÏÔʾ MOV AL,AH
OUT 44H,AL MOV BL,X[2] MOV AL,[SI+BX] OUT 42H,AL CALL DELY MOV AL,0 OUT 42H,AL
G: MOV AH,01110000B ;ʼÏÔʾ
MOV AL,AH OUT 44H,AL MOV BL,X[3] MOV AL,[SI+BX] OUT 42H,AL CALL DELY
´ÓµÚ3λ¿ª
´ÓµÚ2λ¿ª
´ÓµÚ1λ¿ª
JMP EXIT4
NONE: MOV AL,0 ;XÖÐûÓÐÊý¾Ý£¬²»ÏÔʾ OUT 42H,AL EXIT4: POP AX POP BX RET DISP ENDP
;·ÖÎöÊý¾ÝλÊý×Ó³ÌÐò BITP PROC
CMP X[0],0 ;Ϊ4λÊý
JNZ FOURBIT
CMP X[1],0 ;Ϊ3λÊý
JNZ THREEBIT
CMP X[2],0 ;Ϊ2λÊý
JNZ TOWBIT
CMP X[3],0 ;Ϊ1λÊý
JNZ ONEBIT
JMP ZER0BIT ; FOURBIT: MOV CC,4 JMP EXIT5 THREEBIT: MOV CC,3 JMP EXIT5 TOWBIT: MOV CC,2 JMP EXIT5 ONEBIT: MOV CC,1 JMP EXIT5 ZER0BIT: MOV CC,0 EXIT5: RET BITP ENDP
;ÑÓʱ×Ó³ÌÐò DELY PROC
PUSH CX MOV CX,100 LOOP $ POP CX RET DELY ENDP
CODE ENDS
END START
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