获取中断向量的简易程序

王建民
1994-01-07

        程序经汇编、连接、再用“EXE2BIN”转换为“COM”文件即可。
        TYPE INTO__FF.ASM
        CODE SEGMENT
        ASSUME CS:CODE,DS:CODE
        ORG 100H
        START: JMP BEGIN
        INT    DB' INT('
        INTH   DB'OOH)='
        SEG    DB'OOOO'
        OFF    DB 'OOOO:',OAH,ODH,'＄'
        BEGIN: MOV AX,OO
        MOV ES,AX          ;ES指向向量段
        MOV SI,OO
        MOV CX,OO
        LOOP1: MOV DX,ES ;取向量偏移地址
        LEA BX,OFF
        MOV AH,4
        CALL H__OUT
        MOV DX,ES  ;取向量段基址
        LEA BX,SEG
        MOV AH,4
        CALL H__OUT
        MOV DH,CL        ;取向量号
        MOV DL,OO
        LEA BX,INTH
        MOV AH,2
        CALL H__OUT
        LEA DX,INT
        MOV AH,09        ;显示
        INT 21H
        ADD SI,4
        INC CX
        CMP CL,00
        JNE LOOP1
        MOV AH,4CH
        INT 21H
        H___OUT PROC NEAR   ;16进制数转ASCII码
        PUSH CX
        LOOP2: MOV CL,4
        ROL DX,CL
        MOV AL,DL
        AND AL,OFH
        DAA
        ADD AL,OFOH
        ADC AL,40H
        MOV ,AL
        INC BX
        DEC AH
        CMP AH,OO
        JNE LOOP2
        POP CX
        RET
        H__OUT ENDP
        CODE ENDS
        END START
        王建民
 
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