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Rev | Author | Line No. | Line |
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7597 | akron1 | 1 | (* |
2 | BSD 2-Clause License |
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3 | |||
7693 | akron1 | 4 | Copyright (c) 2018, 2019, Anton Krotov |
7597 | akron1 | 5 | All rights reserved. |
6 | *) |
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7 | |||
8 | MODULE KOS; |
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9 | |||
10 | IMPORT BIN, WR := WRITER, LISTS, CHL := CHUNKLISTS; |
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11 | |||
12 | |||
13 | CONST |
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14 | |||
15 | HEADER_SIZE = 36; |
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16 | |||
17 | SIZE_OF_DWORD = 4; |
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18 | |||
19 | |||
20 | TYPE |
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21 | |||
22 | FILE = WR.FILE; |
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23 | |||
24 | HEADER = RECORD |
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25 | |||
26 | menuet01: ARRAY 9 OF CHAR; |
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27 | ver, start, size, mem, sp, param, path: INTEGER |
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28 | |||
29 | END; |
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30 | |||
31 | |||
32 | PROCEDURE align (n, _align: INTEGER): INTEGER; |
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33 | BEGIN |
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34 | IF n MOD _align # 0 THEN |
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35 | n := n + _align - (n MOD _align) |
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36 | END |
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37 | |||
38 | RETURN n |
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39 | END align; |
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40 | |||
41 | |||
42 | PROCEDURE Import* (program: BIN.PROGRAM; idata: INTEGER; VAR ImportTable: CHL.INTLIST; VAR len, libcount, size: INTEGER); |
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43 | VAR |
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44 | i: INTEGER; |
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45 | import: BIN.IMPRT; |
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46 | |||
47 | BEGIN |
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48 | libcount := 0; |
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49 | import := program.imp_list.first(BIN.IMPRT); |
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50 | WHILE import # NIL DO |
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51 | IF import.label = 0 THEN |
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52 | INC(libcount) |
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53 | END; |
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54 | import := import.next(BIN.IMPRT) |
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55 | END; |
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56 | |||
57 | len := libcount * 2 + 2; |
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58 | size := (LISTS.count(program.imp_list) + len + 1) * SIZE_OF_DWORD; |
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59 | |||
60 | ImportTable := CHL.CreateIntList(); |
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61 | FOR i := 0 TO size DIV SIZE_OF_DWORD - 1 DO |
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62 | CHL.PushInt(ImportTable, 0) |
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63 | END; |
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64 | |||
65 | i := 0; |
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66 | import := program.imp_list.first(BIN.IMPRT); |
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67 | WHILE import # NIL DO |
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68 | |||
69 | IF import.label = 0 THEN |
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70 | CHL.SetInt(ImportTable, len, 0); |
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71 | INC(len); |
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72 | CHL.SetInt(ImportTable, i, idata + len * SIZE_OF_DWORD); |
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73 | INC(i); |
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74 | CHL.SetInt(ImportTable, i, import.nameoffs + size + idata); |
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75 | INC(i) |
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76 | ELSE |
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77 | CHL.SetInt(ImportTable, len, import.nameoffs + size + idata); |
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78 | import.label := len * SIZE_OF_DWORD; |
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79 | INC(len) |
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80 | END; |
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81 | |||
82 | import := import.next(BIN.IMPRT) |
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83 | END; |
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84 | CHL.SetInt(ImportTable, len, 0); |
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85 | CHL.SetInt(ImportTable, i, 0); |
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86 | CHL.SetInt(ImportTable, i + 1, 0); |
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87 | INC(len); |
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88 | size := size + CHL.Length(program.import) |
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89 | END Import; |
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90 | |||
91 | |||
92 | PROCEDURE write* (program: BIN.PROGRAM; FileName: ARRAY OF CHAR); |
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93 | |||
94 | CONST |
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95 | |||
96 | PARAM_SIZE = 2048; |
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97 | FileAlignment = 16; |
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98 | |||
99 | |||
100 | VAR |
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101 | header: HEADER; |
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102 | |||
103 | base, text, data, idata, bss: INTEGER; |
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104 | |||
105 | reloc: BIN.RELOC; |
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106 | iproc: BIN.IMPRT; |
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107 | L: INTEGER; |
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108 | delta: INTEGER; |
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109 | |||
110 | i: INTEGER; |
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111 | |||
112 | File: FILE; |
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113 | |||
114 | ImportTable: CHL.INTLIST; |
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115 | ILen, libcount, isize: INTEGER; |
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116 | |||
117 | icount, dcount, ccount: INTEGER; |
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118 | |||
119 | |||
120 | BEGIN |
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121 | base := 0; |
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122 | |||
123 | icount := CHL.Length(program.import); |
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124 | dcount := CHL.Length(program.data); |
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125 | ccount := CHL.Length(program.code); |
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126 | |||
127 | text := base + HEADER_SIZE; |
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128 | data := align(text + ccount, FileAlignment); |
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129 | idata := align(data + dcount, FileAlignment); |
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130 | |||
131 | Import(program, idata, ImportTable, ILen, libcount, isize); |
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132 | |||
133 | bss := align(idata + isize, FileAlignment); |
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134 | |||
135 | header.menuet01 := "MENUET01"; |
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136 | header.ver := 1; |
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137 | header.start := text; |
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138 | header.size := idata + isize - base; |
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139 | header.mem := align(header.size + program.stack + program.bss + PARAM_SIZE * 2 + 4096, FileAlignment); |
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140 | header.sp := base + header.mem - PARAM_SIZE * 2; |
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141 | header.param := header.sp; |
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142 | header.path := header.param + PARAM_SIZE; |
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143 | |||
144 | |||
145 | reloc := program.rel_list.first(BIN.RELOC); |
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146 | WHILE reloc # NIL DO |
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147 | |||
148 | L := BIN.get32le(program.code, reloc.offset); |
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149 | delta := 3 - reloc.offset - text; |
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150 | |||
151 | CASE reloc.opcode OF |
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152 | |||
153 | |BIN.RIMP: |
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154 | iproc := BIN.GetIProc(program, L); |
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155 | BIN.put32le(program.code, reloc.offset, idata + iproc.label) |
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156 | |||
157 | |BIN.RBSS: |
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158 | BIN.put32le(program.code, reloc.offset, L + bss) |
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159 | |||
160 | |BIN.RDATA: |
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161 | BIN.put32le(program.code, reloc.offset, L + data) |
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162 | |||
163 | |BIN.RCODE: |
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164 | BIN.put32le(program.code, reloc.offset, BIN.GetLabel(program, L) + text) |
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165 | |||
166 | |BIN.PICDATA: |
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167 | BIN.put32le(program.code, reloc.offset, L + data + delta) |
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168 | |||
169 | |BIN.PICCODE: |
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170 | BIN.put32le(program.code, reloc.offset, BIN.GetLabel(program, L) + text + delta) |
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171 | |||
172 | |BIN.PICBSS: |
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173 | BIN.put32le(program.code, reloc.offset, L + bss + delta) |
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174 | |||
175 | |BIN.PICIMP: |
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176 | iproc := BIN.GetIProc(program, L); |
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177 | BIN.put32le(program.code, reloc.offset, idata + iproc.label + delta) |
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178 | |||
179 | |BIN.IMPTAB: |
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180 | BIN.put32le(program.code, reloc.offset, idata + delta) |
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181 | |||
182 | END; |
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183 | |||
184 | reloc := reloc.next(BIN.RELOC) |
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185 | END; |
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186 | |||
187 | File := WR.Create(FileName); |
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188 | |||
189 | FOR i := 0 TO 7 DO |
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190 | WR.WriteByte(File, ORD(header.menuet01[i])) |
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191 | END; |
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192 | |||
193 | WR.Write32LE(File, header.ver); |
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194 | WR.Write32LE(File, header.start); |
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195 | WR.Write32LE(File, header.size); |
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196 | WR.Write32LE(File, header.mem); |
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197 | WR.Write32LE(File, header.sp); |
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198 | WR.Write32LE(File, header.param); |
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199 | WR.Write32LE(File, header.path); |
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7693 | akron1 | 200 | |
7597 | akron1 | 201 | CHL.WriteToFile(File, program.code); |
202 | WR.Padding(File, FileAlignment); |
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203 | |||
204 | CHL.WriteToFile(File, program.data); |
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205 | WR.Padding(File, FileAlignment); |
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206 | |||
207 | FOR i := 0 TO ILen - 1 DO |
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208 | WR.Write32LE(File, CHL.GetInt(ImportTable, i)) |
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7693 | akron1 | 209 | END; |
210 | |||
7597 | akron1 | 211 | CHL.WriteToFile(File, program.import); |
212 | |||
213 | WR.Close(File) |
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214 | |||
215 | END write; |
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216 | |||
217 | |||
218 | END KOS. |