48 lines
996 B
NASM
48 lines
996 B
NASM
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; Fatal error processor
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; Copyright (c) Mix Software 1988
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;
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; Generates a message to stderr and terminates.
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;
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IDT $_FATAL
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DEF $_FATAL
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FREF _exit
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DREF errno
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$_FATAL PUSH BP
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MOV BP,SP
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MOV AX,[BP][%PARM1] ; fetch error code
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MOV DX,AX
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AND AX,>000F
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CMP AL,9
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JLE DIGIT
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ADD AL,7
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DIGIT ADD AL,'0'
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MOV %[DIG0],AL
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MOV CL,4
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SHR DL,CL
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AND DL,>0F
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CMP DL,9
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JLE DIGIT2
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ADD DL,7
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DIGIT2 ADD DL,'0'
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MOV %[DIG1],DL
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MOV DX,ERRMSG
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MOV AX,>4000
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MOV BX,2
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MOV CX,MSGLEN
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INT >21
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PUSH [errno]
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CALLFAR _exit
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POP DX
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POP BP
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RETFAR
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;
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DORG 0
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ERRMSG DB 'Fatal error #'
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DIG1 DB '0'
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DIG0 DB '0'
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DB >0D,>0A
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MSGLEN EQU $-ERRMSG
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;
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END
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