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Last change
on this file was 18, checked in by bird, 22 years ago |
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Initial revision
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Property cvs2svn:cvs-rev
set to
1.1
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Property svn:eol-style
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native
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Property svn:executable
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*
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File size:
3.1 KB
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| 1 | ;
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| 2 | ; RPRINT.ASM -- Text output via DOS (real mode)
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| 3 | ;
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| 4 | ; Copyright (c) 1991-1995 by Eberhard Mattes
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| 5 | ;
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| 6 | ; This file is part of emx.
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| 7 | ;
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| 8 | ; emx is free software; you can redistribute it and/or modify it
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| 9 | ; under the terms of the GNU General Public License as published by
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| 10 | ; the Free Software Foundation; either version 2, or (at your option)
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| 11 | ; any later version.
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| 12 | ;
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| 13 | ; emx is distributed in the hope that it will be useful,
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| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | ; GNU General Public License for more details.
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| 17 | ;
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| 18 | ; You should have received a copy of the GNU General Public License
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| 19 | ; along with emx; see the file COPYING. If not, write to
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| 20 | ; the Free Software Foundation, 59 Temple Place - Suite 330,
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| 21 | ; Boston, MA 02111-1307, USA.
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| 22 | ;
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| 23 | ; See emx.asm for a special exception.
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| 24 | ;
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| 25 |
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| 26 | ;
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| 27 | ; Note: This module must not use 386 instructions
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| 28 | ;
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| 29 |
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| 30 | INCLUDE EMX.INC
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| 31 |
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| 32 | PUBLIC RWORD, RBYTE, RNIBBLE
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| 33 | PUBLIC RCHAR, RTEXT, RCRLF
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| 34 |
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| 35 |
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| 36 | INIT_CODE SEGMENT
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| 37 |
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| 38 | ASSUME CS:INIT_CODE, DS:NOTHING
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| 39 |
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| 40 | .8086 ; !!!
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| 41 |
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| 42 | RWORD PROC NEAR
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| 43 | XCHG AL, AH
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| 44 | CALL RBYTE
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| 45 | XCHG AL, AH
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| 46 | CALL RBYTE
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| 47 | RET
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| 48 | RWORD ENDP
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| 49 |
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| 50 |
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| 51 | RBYTE PROC NEAR
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| 52 | PUSH AX
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| 53 | REPT 4
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| 54 | SHR AL, 1
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| 55 | ENDM
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| 56 | CALL RNIBBLE
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| 57 | POP AX
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| 58 | PUSH AX
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| 59 | CALL RNIBBLE
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| 60 | POP AX
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| 61 | RET
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| 62 | RBYTE ENDP
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| 63 |
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| 64 | RNIBBLE PROC NEAR
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| 65 | AND AL, 0FH
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| 66 | ADD AL, 30H
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| 67 | CMP AL, 3AH
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| 68 | JB RNIB1
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| 69 | ADD AL, 7
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| 70 | RNIB1: CALL RCHAR
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| 71 | RET
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| 72 | RNIBBLE ENDP
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| 73 |
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| 74 |
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| 75 | ;
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| 76 | ; In: DS:DX Text (0 terminated)
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| 77 | ;
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| 78 | RTEXT PROC NEAR
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| 79 | PUSH AX
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| 80 | PUSH BX
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| 81 | PUSH CX
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| 82 | XCHG BX, DX
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| 83 | MOV CX, BX
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| 84 | XOR AL, AL
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| 85 | RTEXT1: CMP AL, DS:[BX]
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| 86 | JE RTEXT2
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| 87 | INC BX
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| 88 | JMP RTEXT1
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| 89 | RTEXT2: XCHG BX, CX
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| 90 | SUB CX, BX
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| 91 | XCHG BX, DX
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| 92 | MOV BX, 1 ; stdout
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| 93 | MOV AH, 40H
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| 94 | INT 21H
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| 95 | POP CX
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| 96 | POP BX
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| 97 | POP AX
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| 98 | RET
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| 99 | RTEXT ENDP
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| 100 |
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| 101 | RCHAR PROC NEAR
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| 102 | PUSH AX
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| 103 | PUSH DX
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| 104 | MOV DL, AL
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| 105 | MOV AH, 02H
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| 106 | INT 21H
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| 107 | POP DX
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| 108 | POP AX
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| 109 | RET
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| 110 | RCHAR ENDP
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| 111 |
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| 112 |
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| 113 | RCRLF PROC NEAR
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| 114 | PUSH AX
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| 115 | MOV AL, CR
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| 116 | CALL RCHAR
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| 117 | MOV AL, LF
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| 118 | CALL RCHAR
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| 119 | POP AX
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| 120 | RET
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| 121 | RCRLF ENDP
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| 122 |
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| 123 | INIT_CODE ENDS
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| 124 |
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| 125 | END
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