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548 | serge | 1 | ;***************************************************************************** |
2 | ;* |
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3 | ;* Open Watcom Project |
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4 | ;* |
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5 | ;* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved. |
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6 | ;* |
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7 | ;* ======================================================================== |
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8 | ;* |
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9 | ;* This file contains Original Code and/or Modifications of Original |
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10 | ;* Code as defined in and that are subject to the Sybase Open Watcom |
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11 | ;* Public License version 1.0 (the 'License'). You may not use this file |
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12 | ;* except in compliance with the License. BY USING THIS FILE YOU AGREE TO |
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13 | ;* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is |
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14 | ;* provided with the Original Code and Modifications, and is also |
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15 | ;* available at www.sybase.com/developer/opensource. |
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16 | ;* |
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17 | ;* The Original Code and all software distributed under the License are |
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18 | ;* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
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19 | ;* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM |
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20 | ;* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF |
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21 | ;* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR |
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22 | ;* NON-INFRINGEMENT. Please see the License for the specific language |
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23 | ;* governing rights and limitations under the License. |
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24 | ;* |
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25 | ;* ======================================================================== |
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26 | ;* |
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27 | ;* Description: WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE |
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28 | ;* DESCRIBE IT HERE! |
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29 | ;* |
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30 | ;***************************************************************************** |
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31 | |||
32 | |||
33 | ; |
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34 | ; segment definitions for WATCOM C/C++32 |
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35 | ; |
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36 | include langenv.inc |
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37 | |||
38 | name segdefns |
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39 | .386p |
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40 | |||
41 | assume nothing |
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42 | |||
43 | |||
44 | if COMP_CFG_COFF |
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45 | DGROUP group _NULL,_AFTERNULL,CONST,_DATA,DATA,_BSS,STACK |
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46 | else |
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47 | ifdef __LINUX__ |
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48 | DGROUP group _NULL,_AFTERNULL,CONST,_DATA,DATA,TIB,TI,TIE,XIB,XI,XIE,YIB,YI,YIE,_BSS |
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49 | else |
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50 | DGROUP group _NULL,_AFTERNULL,CONST,_DATA,DATA,_BSS,STACK,TIB,TI,TIE,XIB,XI,XIE,YIB,YI,YIE |
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51 | endif |
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52 | endif |
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53 | |||
54 | ; this guarantees that no function pointer will equal NULL |
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55 | ; (WLINK will keep segment 'BEGTEXT' in front) |
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56 | ; This segment must be at least 4 bytes in size to avoid confusing the |
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57 | ; signal function. |
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58 | |||
59 | BEGTEXT segment use32 word public 'CODE' |
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60 | assume cs:BEGTEXT |
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61 | forever label near |
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62 | int 3h |
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63 | jmp short forever |
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64 | ; NOTE that __begtext needs to be at offset 3 |
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65 | ; don't move it. i.e. don't change any code before here. |
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66 | ___begtext label byte |
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67 | nop |
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68 | nop |
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69 | nop |
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70 | nop |
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71 | public ___begtext |
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72 | assume cs:nothing |
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73 | BEGTEXT ends |
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74 | |||
75 | assume ds:DGROUP |
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76 | |||
77 | _NULL segment para public 'BEGDATA' |
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78 | __nullarea label word |
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79 | db 01h,01h,01h,00h |
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80 | public __nullarea |
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81 | _NULL ends |
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82 | |||
83 | _AFTERNULL segment word public 'BEGDATA' |
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84 | _AFTERNULL ends |
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85 | |||
86 | CONST segment word public 'DATA' |
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87 | CONST ends |
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88 | |||
89 | if COMP_CFG_COFF eq 0 |
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90 | TIB segment byte public 'DATA' |
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91 | TIB ends |
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92 | TI segment byte public 'DATA' |
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93 | TI ends |
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94 | TIE segment byte public 'DATA' |
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95 | TIE ends |
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96 | |||
97 | XIB segment word public 'DATA' |
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98 | _Start_XI label byte |
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99 | public "C",_Start_XI |
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100 | XIB ends |
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101 | XI segment word public 'DATA' |
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102 | XI ends |
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103 | XIE segment word public 'DATA' |
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104 | _End_XI label byte |
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105 | public "C",_End_XI |
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106 | XIE ends |
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107 | |||
108 | YIB segment word public 'DATA' |
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109 | _Start_YI label byte |
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110 | public "C",_Start_YI |
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111 | YIB ends |
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112 | YI segment word public 'DATA' |
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113 | YI ends |
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114 | YIE segment word public 'DATA' |
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115 | _End_YI label byte |
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116 | public "C",_End_YI |
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117 | YIE ends |
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118 | endif |
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119 | |||
120 | _DATA segment word public 'DATA' |
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121 | _DATA ends |
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122 | |||
123 | DATA segment word public 'DATA' |
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124 | DATA ends |
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125 | |||
126 | _BSS segment word public 'BSS' |
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127 | _BSS ends |
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128 | |||
129 | ifndef __LINUX__ |
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130 | STACK_SIZE equ 4096h |
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131 | |||
132 | STACK segment para stack 'STACK' |
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133 | db (STACK_SIZE) dup(?) |
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134 | STACK ends |
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135 | endif |
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136 | |||
137 | _TEXT segment use32 word public 'CODE' |
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138 | _TEXT ends |
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139 | |||
140 | end |