74 lines
743 B
NASM
74 lines
743 B
NASM
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CSEG SEGMENT
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PUBLIC GETSPACE
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GETSPACE PROC FAR
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ASSUME CS:CSEG
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PUSH BP
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MOV BP,SP
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MOV BX,[BP]+6
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MOV DI,[BX]+2
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MOV CX,8
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MOV AL,' '
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CLD
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REP STOSB
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MOV BX,[BP]+8
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MOV SI,[BX]+2
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MOV AX,[SI]
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AND AL,0DFH
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CMP AL,41H
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JGE CKVER
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JMP EXITSPC
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CKVER:
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PUSH AX
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MOV AH,30H
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INT 21H
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XCHG AL,AH
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SPACE20:
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POP DX
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XOR DL,40H
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MOV AH,36H
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INT 21H
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CMP AX,0FFFFH
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JE EXITSPC
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XOR DX,DX
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MUL CX
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XCHG BX,CX
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MUL CX
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PUSH AX
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PUSH DX
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ENDSPC:
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MOV BX,[BP]+6
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MOV DI,[BX]+2
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ADD DI,7
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POP DX
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POP AX
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HEXTODEC:
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MOV SI,10
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PUSH AX
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MOV AX,DX
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XOR DX,DX
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DIV SI
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POP CX
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PUSH AX
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MOV AX,CX
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DIV SI
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POP SI
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OR DL,30H
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MOV BYTE PTR [DI],DL
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DEC DI
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XCHG DX,SI
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OR AX,AX
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JNZ HEXTODEC
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EXITSPC:
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POP BP
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RET 4
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RET
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GETSPACE ENDP
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CSEG ENDS
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END
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