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Rev | Author | Line No. | Line |
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431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
593 | mikedld | 8 | $Revision: 886 $ |
9 | |||
10 | |||
357 | serge | 11 | GREEDY_KERNEL equ 0 |
164 | serge | 12 | |
13 | struc APP_HEADER_00 |
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14 | { .banner dq ? |
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15 | .version dd ? ;+8 |
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16 | .start dd ? ;+12 |
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17 | .i_end dd ? ;+16 |
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18 | .mem_size dd ? ;+20 |
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19 | .i_param dd ? ;+24 |
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20 | } |
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21 | |||
22 | struc APP_HEADER_01 |
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23 | { .banner dq ? |
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24 | .version dd ? ;+8 |
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25 | .start dd ? ;+12 |
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26 | .i_end dd ? ;+16 |
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27 | .mem_size dd ? ;+20 |
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28 | .stack_top dd ? ;+24 |
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29 | .i_param dd ? ;+28 |
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30 | .i_icon dd ? ;+32 |
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31 | } |
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32 | |||
237 | serge | 33 | |
34 | struc APP_PARAMS |
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774 | Rus | 35 | { .app_cmdline ;0x00 |
36 | .app_path ;0x04 |
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37 | .app_eip ;0x08 |
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38 | .app_esp ;0x0C |
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39 | .app_mem ;0x10 |
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237 | serge | 40 | } |
41 | |||
42 | macro _clear_ op |
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43 | { mov ecx, op/4 |
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44 | xor eax, eax |
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45 | cld |
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46 | rep stosd |
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47 | } |
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48 | |||
521 | diamond | 49 | fs_execute_from_sysdir: |
774 | Rus | 50 | xor ebx, ebx |
51 | xor edx, edx |
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52 | mov esi, sysdir_path |
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363 | serge | 53 | |
164 | serge | 54 | align 4 |
363 | serge | 55 | proc fs_execute |
56 | |||
57 | ;fn_read:dword, file_size:dword, cluster:dword |
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58 | |||
59 | ; ebx - cmdline |
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60 | ; edx - flags |
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61 | ; ebp - full filename |
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62 | ; [esp+4] = procedure DoRead, [esp+8] = filesize & [esp+12]... - arguments for it |
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63 | |||
886 | serge | 64 | locals |
65 | cmdline rd 64 ;256/4 |
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66 | filename rd 256 ;1024/4 |
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67 | flags dd ? |
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363 | serge | 68 | |
886 | serge | 69 | save_cr3 dd ? |
70 | slot dd ? |
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71 | slot_base dd ? |
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72 | file_base dd ? |
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73 | file_size dd ? |
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74 | ;app header data |
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75 | hdr_cmdline dd ? ;0x00 |
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76 | hdr_path dd ? ;0x04 |
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77 | hdr_eip dd ? ;0x08 |
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78 | hdr_esp dd ? ;0x0C |
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79 | hdr_mem dd ? ;0x10 |
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80 | hdr_i_end dd ? ;0x14 |
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81 | endl |
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164 | serge | 82 | |
886 | serge | 83 | pushad |
363 | serge | 84 | |
886 | serge | 85 | mov [flags], edx |
363 | serge | 86 | |
87 | ; [ebp] pointer to filename |
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88 | |||
886 | serge | 89 | lea edi, [filename] |
90 | lea ecx, [edi+1024] |
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91 | mov al, '/' |
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92 | stosb |
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521 | diamond | 93 | @@: |
886 | serge | 94 | cmp edi, ecx |
95 | jae .bigfilename |
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96 | lodsb |
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97 | stosb |
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98 | test al, al |
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99 | jnz @b |
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100 | mov esi, [ebp] |
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101 | test esi, esi |
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102 | jz .namecopied |
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103 | mov byte [edi-1], '/' |
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521 | diamond | 104 | @@: |
886 | serge | 105 | cmp edi, ecx |
106 | jae .bigfilename |
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107 | lodsb |
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108 | stosb |
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109 | test al, al |
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110 | jnz @b |
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111 | jmp .namecopied |
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521 | diamond | 112 | .bigfilename: |
886 | serge | 113 | popad |
114 | mov eax, -ERROR_FILE_NOT_FOUND |
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115 | ret |
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521 | diamond | 116 | .namecopied: |
363 | serge | 117 | |
886 | serge | 118 | mov [cmdline], ebx |
119 | test ebx, ebx |
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120 | jz @F |
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519 | serge | 121 | |
886 | serge | 122 | lea eax, [cmdline] |
123 | mov dword [eax+252], 0 |
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124 | stdcall strncpy, eax, ebx, 255 |
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519 | serge | 125 | @@: |
886 | serge | 126 | lea eax, [filename] |
127 | stdcall load_file, eax |
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128 | mov ecx, -ERROR_FILE_NOT_FOUND |
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129 | test eax, eax |
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130 | jz .err_file |
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237 | serge | 131 | |
886 | serge | 132 | mov [file_base], eax |
133 | mov [file_size], ebx |
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237 | serge | 134 | |
886 | serge | 135 | lea ebx, [hdr_cmdline] |
136 | call test_app_header |
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137 | mov ecx, -0x1F |
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138 | test eax, eax |
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139 | jz .err_hdr |
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237 | serge | 140 | |
886 | serge | 141 | DEBUGF 1,"%s",new_process_loading |
237 | serge | 142 | |
143 | .wait_lock: |
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886 | serge | 144 | cmp [application_table_status],0 |
145 | je .get_lock |
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146 | call change_task |
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147 | jmp .wait_lock |
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237 | serge | 148 | |
149 | .get_lock: |
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886 | serge | 150 | mov eax, 1 |
151 | xchg eax, [application_table_status] |
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152 | cmp eax, 0 |
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153 | jne .wait_lock |
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237 | serge | 154 | |
886 | serge | 155 | call set_application_table_status |
237 | serge | 156 | |
886 | serge | 157 | call get_new_process_place |
158 | test eax, eax |
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159 | mov ecx, -0x20 ; too many processes |
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160 | jz .err |
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237 | serge | 161 | |
886 | serge | 162 | mov [slot], eax |
163 | shl eax, 8 |
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164 | add eax, SLOT_BASE |
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165 | mov [slot_base], eax |
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166 | mov edi, eax |
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167 | _clear_ 256 ;clean extended information about process |
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237 | serge | 168 | |
169 | ; write application name |
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886 | serge | 170 | lea eax, [filename] |
171 | stdcall strrchr, eax, '/' ; now eax points to name without path |
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237 | serge | 172 | |
886 | serge | 173 | lea esi, [eax+1] |
174 | test eax, eax |
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175 | jnz @F |
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176 | lea esi, [filename] |
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237 | serge | 177 | @@: |
886 | serge | 178 | mov ecx, 8 ; 8 chars for name |
179 | mov edi, [slot_base] |
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237 | serge | 180 | .copy_process_name_loop: |
886 | serge | 181 | lodsb |
182 | cmp al, '.' |
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183 | jz .copy_process_name_done |
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184 | test al, al |
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185 | jz .copy_process_name_done |
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186 | stosb |
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187 | loop .copy_process_name_loop |
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237 | serge | 188 | .copy_process_name_done: |
189 | |||
886 | serge | 190 | mov ebx, cr3 |
191 | mov [save_cr3], ebx |
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839 | serge | 192 | |
843 | serge | 193 | stdcall create_app_space,[hdr_mem],[file_base],[file_size] |
194 | mov ecx, -30 ; no memory |
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886 | serge | 195 | test eax, eax |
196 | jz .failed |
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237 | serge | 197 | |
886 | serge | 198 | mov ebx,[slot_base] |
199 | mov [ebx+APPDATA.dir_table],eax |
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200 | mov eax,[hdr_mem] |
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201 | mov [ebx+APPDATA.mem_size],eax |
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237 | serge | 202 | |
357 | serge | 203 | if GREEDY_KERNEL |
204 | else |
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886 | serge | 205 | mov ecx, [hdr_mem] |
206 | mov edi, [file_size] |
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207 | add edi, 4095 |
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208 | and edi, not 4095 |
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209 | sub ecx, edi |
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210 | jna @F |
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269 | serge | 211 | |
886 | serge | 212 | xor eax, eax |
213 | cld |
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214 | rep stosb |
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247 | serge | 215 | @@: |
269 | serge | 216 | end if |
217 | |||
218 | ; release only virtual space, not phisical memory |
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219 | |||
886 | serge | 220 | stdcall free_kernel_space, [file_base] ; |
221 | lea eax, [hdr_cmdline] |
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222 | lea ebx, [cmdline] |
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223 | lea ecx, [filename] |
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224 | stdcall set_app_params ,[slot],eax,ebx,ecx,[flags] |
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237 | serge | 225 | |
886 | serge | 226 | mov eax, [save_cr3] |
227 | call set_cr3 |
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237 | serge | 228 | |
886 | serge | 229 | xor ebx, ebx |
230 | mov [application_table_status],ebx ;unlock application_table_status mutex |
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231 | mov eax,[process_number] ;set result |
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232 | ret |
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237 | serge | 233 | .failed: |
886 | serge | 234 | mov eax, [save_cr3] |
235 | call set_cr3 |
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269 | serge | 236 | .err: |
247 | serge | 237 | .err_hdr: |
886 | serge | 238 | stdcall kernel_free,[file_base] |
247 | serge | 239 | .err_file: |
886 | serge | 240 | xor eax, eax |
241 | mov [application_table_status],eax |
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242 | mov eax, ecx |
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243 | ret |
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237 | serge | 244 | endp |
164 | serge | 245 | |
237 | serge | 246 | align 4 |
247 | test_app_header: |
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774 | Rus | 248 | virtual at eax |
249 | APP_HEADER_00 APP_HEADER_00 |
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250 | end virtual |
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251 | virtual at eax |
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252 | APP_HEADER_01 APP_HEADER_01 |
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253 | end virtual |
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164 | serge | 254 | |
774 | Rus | 255 | cmp dword [eax], 'MENU' |
256 | jne .fail |
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257 | cmp word [eax+4],'ET' |
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258 | jne .fail |
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164 | serge | 259 | |
774 | Rus | 260 | cmp [eax+6], word '00' |
261 | jne .check_01_header |
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164 | serge | 262 | |
774 | Rus | 263 | mov ecx,[APP_HEADER_00.start] |
264 | mov [ebx+0x08], ecx ;app_eip |
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265 | mov edx,[APP_HEADER_00.mem_size] |
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266 | mov [ebx+0x10], edx ;app_mem |
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267 | shr edx,1 |
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268 | sub edx,0x10 |
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269 | mov [ebx+0x0C], edx ;app_esp |
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270 | mov ecx,[APP_HEADER_00.i_param] |
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271 | mov [ebx], ecx ;app_cmdline |
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272 | mov [ebx+4], dword 0 ;app_path |
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273 | mov edx, [APP_HEADER_00.i_end] |
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274 | mov [ebx+0x14], edx |
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275 | ret |
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164 | serge | 276 | |
237 | serge | 277 | .check_01_header: |
164 | serge | 278 | |
774 | Rus | 279 | cmp [eax+6],word '01' |
280 | jne .fail |
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237 | serge | 281 | |
774 | Rus | 282 | mov ecx,[APP_HEADER_01.start] |
283 | mov [ebx+0x08], ecx ;app_eip |
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284 | mov edx,[APP_HEADER_01.mem_size] |
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381 | serge | 285 | |
286 | ; \begin{diamond}[20.08.2006] |
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287 | ; sanity check (functions 19,58 load app_i_end bytes and that must |
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288 | ; fit in allocated memory to prevent kernel faults) |
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774 | Rus | 289 | cmp edx,[APP_HEADER_01.i_end] |
290 | jb .fail |
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381 | serge | 291 | ; \end{diamond}[20.08.2006] |
292 | |||
774 | Rus | 293 | mov [ebx+0x10], edx ;app_mem |
294 | mov ecx,[APP_HEADER_01.stack_top] |
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295 | mov [ebx+0x0C], ecx ;app_esp |
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296 | mov edx,[APP_HEADER_01.i_param] |
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297 | mov [ebx], edx ;app_cmdline |
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298 | mov ecx,[APP_HEADER_01.i_icon] |
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299 | mov [ebx+4], ecx ;app_path |
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300 | mov edx, [APP_HEADER_01.i_end] |
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301 | mov [ebx+0x14], edx |
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302 | ret |
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237 | serge | 303 | .fail: |
774 | Rus | 304 | xor eax, eax |
305 | ret |
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164 | serge | 306 | |
307 | align 4 |
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308 | proc get_new_process_place |
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309 | ;input: |
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310 | ; none |
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311 | ;result: |
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312 | ; eax=[new_process_place]<>0 - ok |
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313 | ; 0 - failed. |
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314 | ;This function find least empty slot. |
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315 | ;It doesn't increase [TASK_COUNT]! |
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774 | Rus | 316 | mov eax,CURRENT_TASK |
317 | mov ebx,[TASK_COUNT] |
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318 | inc ebx |
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319 | shl ebx,5 |
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320 | add ebx,eax ;ebx - address of process information for (last+1) slot |
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164 | serge | 321 | .newprocessplace: |
322 | ;eax = address of process information for current slot |
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774 | Rus | 323 | cmp eax,ebx |
324 | jz .endnewprocessplace ;empty slot after high boundary |
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325 | add eax,0x20 |
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326 | cmp word [eax+0xa],9 ;check process state, 9 means that process slot is empty |
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327 | jnz .newprocessplace |
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164 | serge | 328 | .endnewprocessplace: |
774 | Rus | 329 | mov ebx,eax |
330 | sub eax,CURRENT_TASK |
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331 | shr eax,5 ;calculate slot index |
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332 | cmp eax,256 |
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333 | jge .failed ;it should be <256 |
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334 | mov word [ebx+0xa],9 ;set process state to 9 (for slot after hight boundary) |
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335 | ret |
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164 | serge | 336 | .failed: |
774 | Rus | 337 | xor eax,eax |
338 | ret |
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164 | serge | 339 | endp |
340 | |||
341 | align 4 |
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269 | serge | 342 | proc create_app_space stdcall, app_size:dword,img_base:dword,img_size:dword |
886 | serge | 343 | locals |
344 | app_pages dd ? |
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345 | img_pages dd ? |
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346 | dir_addr dd ? |
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347 | app_tabs dd ? |
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348 | endl |
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164 | serge | 349 | |
886 | serge | 350 | mov ebx, pg_data.pg_mutex |
351 | call wait_mutex ;ebx |
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164 | serge | 352 | |
886 | serge | 353 | xor eax, eax |
354 | mov [dir_addr], eax |
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164 | serge | 355 | |
886 | serge | 356 | mov eax, [app_size] |
357 | add eax, 4095 |
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861 | serge | 358 | and eax, not 4095 |
886 | serge | 359 | mov [app_size], eax |
360 | mov ebx, eax |
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361 | shr eax, 12 |
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362 | mov [app_pages], eax |
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170 | serge | 363 | |
886 | serge | 364 | add ebx, 0x3FFFFF |
861 | serge | 365 | and ebx, not 0x3FFFFF |
886 | serge | 366 | shr ebx, 22 |
367 | mov [app_tabs], ebx |
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164 | serge | 368 | |
886 | serge | 369 | mov ecx, [img_size] |
370 | add ecx, 4095 |
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861 | serge | 371 | and ecx, not 4095 |
164 | serge | 372 | |
886 | serge | 373 | mov [img_size], ecx |
374 | shr ecx, 12 |
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375 | mov [img_pages], ecx |
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164 | serge | 376 | |
861 | serge | 377 | ; if GREEDY_KERNEL |
378 | ; lea eax, [ecx+ebx+2] ;only image size |
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379 | ; else |
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380 | ; lea eax, [eax+ebx+2] ;all requested memory |
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381 | ; end if |
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843 | serge | 382 | ; cmp eax, [pg_data.pages_free] |
383 | ; ja .fail |
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170 | serge | 384 | |
854 | serge | 385 | call _alloc_page |
886 | serge | 386 | test eax, eax |
387 | mov [dir_addr], eax |
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388 | jz .fail |
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164 | serge | 389 | |
861 | serge | 390 | ;lea edi, [eax + OS_BASE] |
391 | ;mov ecx, (OS_BASE shr 20)/4 |
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392 | ;xor eax, eax |
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393 | ;cld |
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394 | ;rep stosd |
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465 | serge | 395 | |
861 | serge | 396 | ;mov ecx, 1024-(OS_BASE shr 20)/4 |
397 | ;mov esi, _sys_pdbr+(OS_BASE shr 20) |
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398 | ;rep movsd |
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164 | serge | 399 | |
861 | serge | 400 | lea edi, [eax+OS_BASE] |
401 | mov ecx, 512 |
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402 | xor eax, eax |
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403 | cld |
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404 | rep stosd |
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405 | |||
406 | mov ecx, 512 |
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407 | mov esi, _sys_pdbr+(HEAP_BASE shr 20) |
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408 | rep movsd |
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409 | |||
839 | serge | 410 | mov edi, [dir_addr] |
411 | lea eax, [edi+PG_SW] |
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412 | mov [edi+OS_BASE+(page_tabs shr 20)], eax |
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378 | serge | 413 | |
861 | serge | 414 | mov eax, edi |
886 | serge | 415 | call set_cr3 |
164 | serge | 416 | |
861 | serge | 417 | mov edx, [app_tabs] |
418 | mov edi, master_tab |
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164 | serge | 419 | @@: |
854 | serge | 420 | call _alloc_page |
886 | serge | 421 | test eax, eax |
422 | jz .fail |
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164 | serge | 423 | |
861 | serge | 424 | or eax, PG_UW |
425 | stosd |
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426 | dec edx |
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427 | jnz @B |
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164 | serge | 428 | |
839 | serge | 429 | mov edi, page_tabs |
269 | serge | 430 | |
886 | serge | 431 | mov ecx, [app_tabs] |
432 | shl ecx, 10 |
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433 | xor eax, eax |
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434 | rep stosd |
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164 | serge | 435 | |
886 | serge | 436 | mov ecx, [img_pages] |
437 | mov ebx, PG_UW |
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438 | mov esi, [img_base] |
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439 | shr esi, 10 |
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440 | add esi, page_tabs |
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839 | serge | 441 | xor edx, edx |
442 | mov edi, page_tabs |
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269 | serge | 443 | .remap: |
886 | serge | 444 | lodsd |
445 | or eax, ebx ; force user level r/w access |
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446 | stosd |
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447 | add edx, 0x1000 |
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448 | dec [app_pages] |
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449 | dec ecx |
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450 | jnz .remap |
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269 | serge | 451 | |
886 | serge | 452 | mov ecx, [app_pages] |
453 | test ecx, ecx |
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454 | jz .done |
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269 | serge | 455 | |
456 | if GREEDY_KERNEL |
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886 | serge | 457 | mov eax, 0x02 |
819 | serge | 458 | rep stosd |
269 | serge | 459 | else |
460 | |||
164 | serge | 461 | .alloc: |
854 | serge | 462 | call _alloc_page |
886 | serge | 463 | test eax, eax |
464 | jz .fail |
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164 | serge | 465 | |
886 | serge | 466 | stdcall map_page,edx,eax,dword PG_UW |
467 | add edx, 0x1000 |
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468 | dec [app_pages] |
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469 | jnz .alloc |
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269 | serge | 470 | end if |
164 | serge | 471 | |
269 | serge | 472 | .done: |
839 | serge | 473 | dec [pg_data.pg_mutex] |
886 | serge | 474 | mov eax, [dir_addr] |
475 | ret |
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164 | serge | 476 | .fail: |
886 | serge | 477 | dec [pg_data.pg_mutex] |
478 | cmp [dir_addr], 0 |
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479 | je @f |
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480 | stdcall destroy_app_space, [dir_addr] |
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164 | serge | 481 | @@: |
886 | serge | 482 | xor eax, eax |
483 | ret |
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164 | serge | 484 | endp |
485 | |||
486 | align 4 |
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487 | set_cr3: |
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465 | serge | 488 | |
886 | serge | 489 | mov ebx, [current_slot] |
490 | mov [ebx+APPDATA.dir_table], eax |
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491 | mov cr3, eax |
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492 | ret |
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164 | serge | 493 | |
494 | align 4 |
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495 | proc destroy_page_table stdcall, pg_tab:dword |
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496 | |||
886 | serge | 497 | push esi |
164 | serge | 498 | |
886 | serge | 499 | mov esi, [pg_tab] |
500 | mov ecx, 1024 |
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164 | serge | 501 | .free: |
886 | serge | 502 | mov eax, [esi] |
503 | test eax, 1 |
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504 | jz .next |
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505 | |||
819 | serge | 506 | test eax, 1 shl 9 |
507 | jnz .next ;skip shared pages |
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886 | serge | 508 | |
509 | call free_page |
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164 | serge | 510 | .next: |
886 | serge | 511 | add esi, 4 |
512 | dec ecx |
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513 | jnz .free |
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514 | pop esi |
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515 | ret |
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164 | serge | 516 | endp |
517 | |||
518 | align 4 |
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519 | proc destroy_app_space stdcall, pg_dir:dword |
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520 | |||
886 | serge | 521 | mov ebx, pg_data.pg_mutex |
522 | call wait_mutex ;ebx |
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164 | serge | 523 | |
886 | serge | 524 | xor edx,edx |
525 | mov eax,0x2 |
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526 | mov ebx, [pg_dir] |
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164 | serge | 527 | .loop: |
528 | ;eax = current slot of process |
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886 | serge | 529 | mov ecx,eax |
530 | shl ecx,5 |
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531 | cmp byte [CURRENT_TASK+ecx+0xa],9 ;if process running? |
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532 | jz @f ;skip empty slots |
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533 | |||
534 | shl ecx,3 |
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535 | cmp [SLOT_BASE+ecx+0xB8],ebx ;compare page directory addresses |
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536 | jnz @f |
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537 | |||
538 | inc edx ;thread found |
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164 | serge | 539 | @@: |
886 | serge | 540 | inc eax |
541 | cmp eax,[TASK_COUNT] ;exit loop if we look through all processes |
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542 | jle .loop |
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164 | serge | 543 | |
544 | ;edx = number of threads |
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545 | ;our process is zombi so it isn't counted |
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886 | serge | 546 | cmp edx,1 |
547 | jg .exit |
||
164 | serge | 548 | ;if there isn't threads then clear memory. |
549 | |||
886 | serge | 550 | mov eax, [pg_dir] |
839 | serge | 551 | and eax, -4096 |
552 | add eax, OS_BASE |
||
553 | mov [tmp_task_pdir], eax |
||
554 | mov esi, eax |
||
555 | mov edi, (HEAP_BASE shr 20)/4 |
||
164 | serge | 556 | .destroy: |
886 | serge | 557 | mov eax, [esi] |
558 | test eax, 1 |
||
559 | jz .next |
||
560 | and eax, not 0xFFF |
||
839 | serge | 561 | add eax, OS_BASE |
562 | |||
563 | stdcall destroy_page_table, eax |
||
564 | |||
565 | mov eax, [esi] |
||
886 | serge | 566 | call free_page |
164 | serge | 567 | .next: |
886 | serge | 568 | add esi, 4 |
569 | dec edi |
||
570 | jnz .destroy |
||
164 | serge | 571 | |
886 | serge | 572 | mov eax, [pg_dir] |
573 | call free_page |
||
164 | serge | 574 | .exit: |
886 | serge | 575 | dec [pg_data.pg_mutex] |
576 | ret |
||
164 | serge | 577 | endp |
578 | |||
520 | serge | 579 | align 4 |
580 | get_pid: |
||
886 | serge | 581 | mov eax, [TASK_BASE] |
819 | serge | 582 | mov eax, [eax+TASKDATA.pid] |
886 | serge | 583 | ret |
520 | serge | 584 | |
164 | serge | 585 | pid_to_slot: |
586 | ;Input: |
||
587 | ; eax - pid of process |
||
588 | ;Output: |
||
589 | ; eax - slot of process or 0 if process don't exists |
||
590 | ;Search process by PID. |
||
591 | push ebx |
||
592 | push ecx |
||
593 | mov ebx,[TASK_COUNT] |
||
594 | shl ebx,5 |
||
595 | mov ecx,2*32 |
||
596 | |||
597 | .loop: |
||
598 | ;ecx=offset of current process info entry |
||
599 | ;ebx=maximum permitted offset |
||
600 | cmp byte [CURRENT_TASK+ecx+0xa],9 |
||
774 | Rus | 601 | jz .endloop ;skip empty slots |
164 | serge | 602 | cmp [CURRENT_TASK+ecx+0x4],eax ;check PID |
774 | Rus | 603 | jz .pid_found |
164 | serge | 604 | .endloop: |
605 | add ecx,32 |
||
606 | cmp ecx,ebx |
||
607 | jle .loop |
||
608 | |||
609 | pop ecx |
||
610 | pop ebx |
||
611 | xor eax,eax |
||
612 | ret |
||
613 | |||
614 | .pid_found: |
||
615 | shr ecx,5 |
||
774 | Rus | 616 | mov eax,ecx ;convert offset to index of slot |
164 | serge | 617 | pop ecx |
618 | pop ebx |
||
619 | ret |
||
620 | |||
621 | check_region: |
||
622 | ;input: |
||
623 | ; ebx - start of buffer |
||
624 | ; ecx - size of buffer |
||
625 | ;result: |
||
626 | ; eax = 1 region lays in app memory |
||
627 | ; eax = 0 region don't lays in app memory |
||
628 | mov eax,[CURRENT_TASK] |
||
629 | jmp check_process_region |
||
630 | ;----------------------------------------------------------------------------- |
||
631 | check_process_region: |
||
632 | ;input: |
||
633 | ; eax - slot |
||
634 | ; ebx - start of buffer |
||
635 | ; ecx - size of buffer |
||
636 | ;result: |
||
637 | ; eax = 1 region lays in app memory |
||
638 | ; eax = 0 region don't lays in app memory |
||
639 | |||
640 | test ecx,ecx |
||
641 | jle .ok |
||
642 | shl eax,5 |
||
643 | cmp word [CURRENT_TASK+eax+0xa],0 |
||
644 | jnz .failed |
||
645 | shl eax,3 |
||
380 | serge | 646 | mov eax,[SLOT_BASE+eax+0xb8] |
164 | serge | 647 | test eax,eax |
648 | jz .failed |
||
649 | |||
650 | mov eax,1 |
||
651 | ret |
||
652 | |||
653 | |||
654 | ; call MEM_Get_Linear_Address |
||
655 | ; push ebx |
||
656 | ; push ecx |
||
657 | ; push edx |
||
658 | ; mov edx,ebx |
||
659 | ; and edx,not (4096-1) |
||
660 | ; sub ebx,edx |
||
661 | ; add ecx,ebx |
||
662 | ; mov ebx,edx |
||
663 | ; add ecx,(4096-1) |
||
664 | ; and ecx,not (4096-1) |
||
665 | ;.loop: |
||
666 | ;;eax - linear address of page directory |
||
667 | ;;ebx - current page |
||
668 | ;;ecx - current size |
||
669 | ; mov edx,ebx |
||
670 | ; shr edx,22 |
||
671 | ; mov edx,[eax+4*edx] |
||
672 | ; and edx,not (4096-1) |
||
673 | ; test edx,edx |
||
674 | ; jz .failed1 |
||
675 | ; push eax |
||
676 | ; mov eax,edx |
||
677 | ; call MEM_Get_Linear_Address |
||
678 | ; mov edx,ebx |
||
679 | ; shr edx,12 |
||
680 | ; and edx,(1024-1) |
||
681 | ; mov eax,[eax+4*edx] |
||
682 | ; and eax,not (4096-1) |
||
683 | ; test eax,eax |
||
684 | ; pop eax |
||
685 | ; jz .failed1 |
||
686 | ; add ebx,4096 |
||
687 | ; sub ecx,4096 |
||
688 | ; jg .loop |
||
689 | ; pop edx |
||
690 | ; pop ecx |
||
691 | ; pop ebx |
||
692 | .ok: |
||
693 | mov eax,1 |
||
694 | ret |
||
695 | ; |
||
696 | ;.failed1: |
||
697 | ; pop edx |
||
698 | ; pop ecx |
||
699 | ; pop ebx |
||
700 | .failed: |
||
701 | xor eax,eax |
||
702 | ret |
||
703 | |||
704 | align 4 |
||
705 | proc read_process_memory |
||
706 | ;Input: |
||
707 | ; eax - process slot |
||
708 | ; ebx - buffer address |
||
709 | ; ecx - buffer size |
||
710 | ; edx - start address in other process |
||
711 | ;Output: |
||
712 | ; eax - number of bytes read. |
||
774 | Rus | 713 | locals |
714 | slot dd ? |
||
715 | buff dd ? |
||
716 | r_count dd ? |
||
717 | offset dd ? |
||
718 | tmp_r_cnt dd ? |
||
719 | endl |
||
164 | serge | 720 | |
774 | Rus | 721 | mov [slot], eax |
722 | mov [buff], ebx |
||
723 | and [r_count], 0 |
||
724 | mov [tmp_r_cnt], ecx |
||
725 | mov [offset], edx |
||
164 | serge | 726 | |
774 | Rus | 727 | pushad |
164 | serge | 728 | .read_mem: |
774 | Rus | 729 | mov edx, [offset] |
730 | mov ebx, [tmp_r_cnt] |
||
164 | serge | 731 | |
774 | Rus | 732 | mov ecx, 0x400000 |
733 | and edx, 0x3FFFFF |
||
734 | sub ecx, edx |
||
735 | cmp ecx, ebx |
||
736 | jbe @f |
||
737 | mov ecx, ebx |
||
164 | serge | 738 | @@: |
774 | Rus | 739 | cmp ecx, 0x8000 |
740 | jna @F |
||
741 | mov ecx, 0x8000 |
||
164 | serge | 742 | @@: |
774 | Rus | 743 | mov eax, [slot] |
744 | shl eax,8 |
||
745 | mov ebx, [offset] |
||
465 | serge | 746 | ; add ebx, new_app_base |
774 | Rus | 747 | push ecx |
748 | stdcall map_memEx, [proc_mem_map],\ |
||
749 | [SLOT_BASE+eax+0xB8],\ |
||
750 | ebx, ecx |
||
751 | pop ecx |
||
164 | serge | 752 | |
774 | Rus | 753 | mov esi, [offset] |
754 | and esi, 0xfff |
||
755 | add esi, [proc_mem_map] |
||
756 | mov edi, [buff] |
||
757 | mov edx, ecx |
||
758 | rep movsb |
||
759 | add [r_count], edx |
||
164 | serge | 760 | |
774 | Rus | 761 | add [offset], edx |
762 | sub [tmp_r_cnt], edx |
||
763 | jnz .read_mem |
||
164 | serge | 764 | |
774 | Rus | 765 | popad |
766 | mov eax, [r_count] |
||
767 | ret |
||
164 | serge | 768 | endp |
769 | |||
770 | align 4 |
||
771 | proc write_process_memory |
||
772 | ;Input: |
||
773 | ; eax - process slot |
||
774 | ; ebx - buffer address |
||
775 | ; ecx - buffer size |
||
776 | ; edx - start address in other process |
||
777 | ;Output: |
||
778 | ; eax - number of bytes written |
||
779 | |||
774 | Rus | 780 | locals |
781 | slot dd ? |
||
782 | buff dd ? |
||
783 | w_count dd ? |
||
784 | offset dd ? |
||
785 | tmp_w_cnt dd ? |
||
786 | endl |
||
164 | serge | 787 | |
774 | Rus | 788 | mov [slot], eax |
789 | mov [buff], ebx |
||
790 | and [w_count], 0 |
||
791 | mov [tmp_w_cnt], ecx |
||
792 | mov [offset], edx |
||
164 | serge | 793 | |
774 | Rus | 794 | pushad |
164 | serge | 795 | .read_mem: |
774 | Rus | 796 | mov edx, [offset] |
797 | mov ebx, [tmp_w_cnt] |
||
164 | serge | 798 | |
774 | Rus | 799 | mov ecx, 0x400000 |
800 | and edx, 0x3FFFFF |
||
801 | sub ecx, edx |
||
802 | cmp ecx, ebx |
||
803 | jbe @f |
||
804 | mov ecx, ebx |
||
164 | serge | 805 | @@: |
774 | Rus | 806 | cmp ecx, 0x8000 |
807 | jna @F |
||
808 | mov ecx, 0x8000 |
||
164 | serge | 809 | @@: |
774 | Rus | 810 | mov eax, [slot] |
811 | shl eax,8 |
||
812 | mov ebx, [offset] |
||
465 | serge | 813 | ; add ebx, new_app_base |
774 | Rus | 814 | push ecx |
815 | stdcall map_memEx, [proc_mem_map],\ |
||
816 | [SLOT_BASE+eax+0xB8],\ |
||
817 | ebx, ecx |
||
818 | pop ecx |
||
164 | serge | 819 | |
774 | Rus | 820 | mov edi, [offset] |
821 | and edi, 0xfff |
||
822 | add edi, [proc_mem_map] |
||
823 | mov esi, [buff] |
||
824 | mov edx, ecx |
||
825 | rep movsb |
||
164 | serge | 826 | |
774 | Rus | 827 | add [w_count], edx |
828 | add [offset], edx |
||
829 | sub [tmp_w_cnt], edx |
||
830 | jnz .read_mem |
||
164 | serge | 831 | |
774 | Rus | 832 | popad |
833 | mov eax, [w_count] |
||
834 | ret |
||
164 | serge | 835 | endp |
836 | |||
837 | align 4 |
||
838 | proc new_sys_threads |
||
886 | serge | 839 | locals |
840 | slot dd ? |
||
841 | app_cmdline dd ? ;0x00 |
||
842 | app_path dd ? ;0x04 |
||
843 | app_eip dd ? ;0x08 |
||
844 | app_esp dd ? ;0x0C |
||
845 | app_mem dd ? ;0x10 |
||
846 | endl |
||
164 | serge | 847 | |
886 | serge | 848 | cmp eax,1 |
849 | jne .failed ;other subfunctions |
||
164 | serge | 850 | |
886 | serge | 851 | xor eax,eax |
852 | mov [app_cmdline], eax |
||
853 | mov [app_path], eax |
||
854 | mov [app_eip], ebx |
||
855 | mov [app_esp], ecx |
||
164 | serge | 856 | |
886 | serge | 857 | ;mov esi,new_process_loading |
858 | ;call sys_msg_board_str |
||
859 | DEBUGF 1,"%s",new_process_loading |
||
164 | serge | 860 | .wait_lock: |
886 | serge | 861 | cmp [application_table_status],0 |
862 | je .get_lock |
||
164 | serge | 863 | |
886 | serge | 864 | call change_task |
865 | jmp .wait_lock |
||
866 | |||
164 | serge | 867 | .get_lock: |
886 | serge | 868 | mov eax, 1 |
869 | xchg eax, [application_table_status] |
||
870 | cmp eax, 0 |
||
871 | jne .wait_lock |
||
164 | serge | 872 | |
886 | serge | 873 | call set_application_table_status |
164 | serge | 874 | |
886 | serge | 875 | call get_new_process_place |
876 | test eax, eax |
||
877 | jz .failed |
||
164 | serge | 878 | |
886 | serge | 879 | mov [slot], eax |
164 | serge | 880 | |
886 | serge | 881 | mov esi,[current_slot] |
882 | mov ebx,esi ;ebx=esi - pointer to extended information about current thread |
||
164 | serge | 883 | |
886 | serge | 884 | mov edi, eax |
885 | shl edi,8 |
||
886 | add edi,SLOT_BASE |
||
887 | mov edx,edi ;edx=edi - pointer to extended infomation about new thread |
||
888 | mov ecx,256/4 |
||
889 | xor eax, eax |
||
890 | cld |
||
891 | rep stosd ;clean extended information about new thread |
||
892 | mov esi,ebx |
||
893 | mov edi,edx |
||
894 | mov ecx,11 |
||
895 | rep movsb ;copy process name |
||
164 | serge | 896 | |
886 | serge | 897 | mov eax,[ebx+APPDATA.heap_base] |
898 | mov [edx+APPDATA.heap_base], eax |
||
164 | serge | 899 | |
886 | serge | 900 | mov ecx,[ebx+APPDATA.heap_top] |
901 | mov [edx+APPDATA.heap_top], ecx |
||
237 | serge | 902 | |
886 | serge | 903 | mov eax,[ebx+APPDATA.mem_size] |
904 | mov [edx+APPDATA.mem_size], eax |
||
237 | serge | 905 | |
886 | serge | 906 | mov ecx,[ebx+APPDATA.dir_table] |
907 | mov [edx+APPDATA.dir_table],ecx ;copy page directory |
||
237 | serge | 908 | |
886 | serge | 909 | lea eax, [app_cmdline] |
910 | stdcall set_app_params ,[slot],eax,dword 0,\ |
||
911 | dword 0,dword 0 |
||
237 | serge | 912 | |
886 | serge | 913 | ;mov esi,new_process_running |
914 | ;call sys_msg_board_str ;output information about succefull startup |
||
915 | DEBUGF 1,"%s",new_process_running |
||
164 | serge | 916 | |
886 | serge | 917 | mov [application_table_status],0 ;unlock application_table_status mutex |
918 | mov eax,[process_number] ;set result |
||
919 | ret |
||
164 | serge | 920 | .failed: |
886 | serge | 921 | mov [application_table_status],0 |
922 | mov eax,-1 |
||
923 | ret |
||
164 | serge | 924 | endp |
925 | |||
276 | serge | 926 | ; param |
927 | ; ebx=mutex |
||
928 | |||
164 | serge | 929 | align 4 |
276 | serge | 930 | wait_mutex: |
886 | serge | 931 | push eax |
932 | push ebx |
||
321 | diamond | 933 | .do_wait: |
886 | serge | 934 | cmp dword [ebx],0 |
935 | je .get_lock |
||
936 | |||
937 | call change_task |
||
938 | jmp .do_wait |
||
164 | serge | 939 | .get_lock: |
886 | serge | 940 | mov eax, 1 |
941 | xchg eax, [ebx] |
||
942 | test eax, eax |
||
943 | jnz .do_wait |
||
164 | serge | 944 | |
886 | serge | 945 | pop ebx |
946 | pop eax |
||
947 | ret |
||
948 | |||
774 | Rus | 949 | EFL_IF equ 0x0200 |
465 | serge | 950 | EFL_IOPL1 equ 0x1000 |
951 | EFL_IOPL2 equ 0x2000 |
||
952 | EFL_IOPL3 equ 0x3000 |
||
953 | |||
954 | |||
237 | serge | 955 | align 4 |
956 | proc set_app_params stdcall,slot:dword, params:dword,\ |
||
774 | Rus | 957 | cmd_line:dword, app_path:dword, flags:dword |
164 | serge | 958 | |
886 | serge | 959 | locals |
960 | pl0_stack dd ? |
||
961 | endl |
||
237 | serge | 962 | |
864 | serge | 963 | mov ecx, 1 ;(RING0_STACK_SIZE+512) shr 12 |
964 | call @core_alloc@4 |
||
839 | serge | 965 | add eax, OS_BASE |
886 | serge | 966 | mov [pl0_stack], eax |
357 | serge | 967 | |
886 | serge | 968 | lea edi, [eax+RING0_STACK_SIZE] |
357 | serge | 969 | |
886 | serge | 970 | mov eax, [slot] |
971 | mov ebx, eax |
||
357 | serge | 972 | |
886 | serge | 973 | shl eax, 8 |
974 | mov [eax+SLOT_BASE+APPDATA.fpu_state], edi |
||
975 | mov [eax+SLOT_BASE+APPDATA.fpu_handler], 0 |
||
976 | mov [eax+SLOT_BASE+APPDATA.sse_handler], 0 |
||
357 | serge | 977 | |
465 | serge | 978 | ;set default io permission map |
886 | serge | 979 | mov [eax+SLOT_BASE+APPDATA.io_map],\ |
980 | (tss._io_map_0-OS_BASE+PG_MAP) |
||
981 | mov [eax+SLOT_BASE+APPDATA.io_map+4],\ |
||
982 | (tss._io_map_1-OS_BASE+PG_MAP) |
||
465 | serge | 983 | |
886 | serge | 984 | mov esi, fpu_data |
985 | mov ecx, 512/4 |
||
986 | rep movsd |
||
237 | serge | 987 | |
886 | serge | 988 | cmp ebx,[TASK_COUNT] |
989 | jle .noinc |
||
990 | inc dword [TASK_COUNT] ;update number of processes |
||
237 | serge | 991 | .noinc: |
886 | serge | 992 | shl ebx,8 |
993 | lea edx, [ebx+SLOT_BASE+APP_EV_OFFSET] |
||
994 | mov [SLOT_BASE+APPDATA.fd_ev+ebx],edx |
||
995 | mov [SLOT_BASE+APPDATA.bk_ev+ebx],edx |
||
354 | serge | 996 | |
886 | serge | 997 | add edx, APP_OBJ_OFFSET-APP_EV_OFFSET |
998 | mov [SLOT_BASE+APPDATA.fd_obj+ebx],edx |
||
999 | mov [SLOT_BASE+APPDATA.bk_obj+ebx],edx |
||
237 | serge | 1000 | |
886 | serge | 1001 | mov ecx, [def_cursor] |
1002 | mov [SLOT_BASE+APPDATA.cursor+ebx],ecx |
||
1003 | mov eax, [pl0_stack] |
||
1004 | mov [SLOT_BASE+APPDATA.pl0_stack+ebx],eax |
||
1005 | add eax, RING0_STACK_SIZE |
||
1006 | mov [SLOT_BASE+APPDATA.saved_esp0+ebx], eax |
||
281 | serge | 1007 | |
854 | serge | 1008 | call _alloc_page |
839 | serge | 1009 | add eax, OS_BASE |
886 | serge | 1010 | mov esi,[current_slot] |
1011 | mov esi,[esi+APPDATA.cur_dir] |
||
1012 | mov ecx,0x1000/4 |
||
1013 | mov edi,eax |
||
1014 | mov [ebx+SLOT_BASE+APPDATA.cur_dir],eax |
||
1015 | rep movsd |
||
521 | diamond | 1016 | |
886 | serge | 1017 | shr ebx,3 |
840 | serge | 1018 | mov dword [CURRENT_TASK+ebx+0x10], 0 |
237 | serge | 1019 | |
1020 | .add_command_line: |
||
886 | serge | 1021 | mov edx,[params] |
1022 | mov edx,[edx] ;app_cmdline |
||
1023 | test edx,edx |
||
1024 | jz @f ;application doesn't need parameters |
||
281 | serge | 1025 | |
886 | serge | 1026 | mov eax, edx |
1027 | add eax, 256 |
||
1028 | jc @f |
||
281 | serge | 1029 | |
886 | serge | 1030 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
1031 | ja @f |
||
281 | serge | 1032 | |
886 | serge | 1033 | mov byte [edx], 0 ;force empty string if no cmdline given |
1034 | mov eax, [cmd_line] |
||
1035 | test eax, eax |
||
1036 | jz @f |
||
1037 | stdcall strncpy, edx, eax, 256 |
||
237 | serge | 1038 | @@: |
886 | serge | 1039 | mov edx,[params] |
1040 | mov edx, [edx+4] ;app_path |
||
1041 | test edx,edx |
||
1042 | jz @F ;application don't need path of file |
||
1043 | mov eax, edx |
||
1044 | add eax, 1024 |
||
1045 | jc @f |
||
1046 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
||
1047 | ja @f |
||
1048 | stdcall strncpy, edx, [app_path], 1024 |
||
237 | serge | 1049 | @@: |
886 | serge | 1050 | mov ebx,[slot] |
1051 | mov eax,ebx |
||
1052 | shl ebx,5 |
||
1053 | lea ecx,[draw_data+ebx] ;ecx - pointer to draw data |
||
465 | serge | 1054 | |
237 | serge | 1055 | ; set window state to 'normal' (non-minimized/maximized/rolled-up) state |
886 | serge | 1056 | mov [ebx+window_data+WDATA.fl_wstate], WSTATE_NORMAL |
1057 | mov [ebx+window_data+WDATA.fl_redraw], 1 |
||
1058 | add ebx,CURRENT_TASK ;ebx - pointer to information about process |
||
1059 | mov [ebx+TASKDATA.wnd_number],al;set window number on screen = process slot |
||
237 | serge | 1060 | |
886 | serge | 1061 | mov [ebx+TASKDATA.event_mask],dword 1+2+4 ;set default event flags (see 40 function) |
237 | serge | 1062 | |
886 | serge | 1063 | inc dword [process_number] |
1064 | mov eax,[process_number] |
||
1065 | mov [ebx+4],eax ;set PID |
||
237 | serge | 1066 | |
1067 | ;set draw data to full screen |
||
1068 | |||
886 | serge | 1069 | mov [ecx+0],dword 0 |
1070 | mov [ecx+4],dword 0 |
||
1071 | mov eax,[Screen_Max_X] |
||
1072 | mov [ecx+8],eax |
||
1073 | mov eax,[Screen_Max_Y] |
||
1074 | mov [ecx+12],eax |
||
237 | serge | 1075 | |
886 | serge | 1076 | mov ebx, [pl0_stack] |
1077 | mov esi,[params] |
||
1078 | lea ecx, [ebx+REG_EIP] |
||
1079 | xor eax, eax |
||
237 | serge | 1080 | |
886 | serge | 1081 | mov [ebx+REG_RET], dword irq0.return |
1082 | mov [ebx+REG_EDI], eax |
||
1083 | mov [ebx+REG_ESI], eax |
||
1084 | mov [ebx+REG_EBP], eax |
||
1085 | mov [ebx+REG_ESP], ecx ;ebx+REG_EIP |
||
1086 | mov [ebx+REG_EBX], eax |
||
1087 | mov [ebx+REG_EDX], eax |
||
1088 | mov [ebx+REG_ECX], eax |
||
1089 | mov [ebx+REG_EAX], eax |
||
237 | serge | 1090 | |
886 | serge | 1091 | mov eax, [esi+0x08] ;app_eip |
1092 | mov [ebx+REG_EIP], eax ;app_entry |
||
1093 | mov [ebx+REG_CS], dword app_code |
||
1094 | mov [ebx+REG_EFLAGS], dword EFL_IOPL3+EFL_IF |
||
465 | serge | 1095 | |
886 | serge | 1096 | mov eax, [esi+0x0C] ;app_esp |
1097 | mov [ebx+REG_APP_ESP], eax ;app_stack |
||
1098 | mov [ebx+REG_SS], dword app_data |
||
237 | serge | 1099 | |
886 | serge | 1100 | lea ecx, [ebx+REG_RET] |
1101 | mov ebx, [slot] |
||
1102 | shl ebx, 5 |
||
1103 | mov [ebx*8+SLOT_BASE+APPDATA.saved_esp], ecx |
||
237 | serge | 1104 | |
886 | serge | 1105 | xor ecx, ecx ; process state - running |
237 | serge | 1106 | ; set if debuggee |
886 | serge | 1107 | test byte [flags], 1 |
1108 | jz .no_debug |
||
1109 | |||
1110 | inc ecx ; process state - suspended |
||
1111 | mov eax,[CURRENT_TASK] |
||
1112 | mov [SLOT_BASE+ebx*8+APPDATA.debugger_slot],eax |
||
237 | serge | 1113 | .no_debug: |
886 | serge | 1114 | mov [CURRENT_TASK+ebx+TASKDATA.state], cl |
1115 | DEBUGF 1,"%s",new_process_running |
||
1116 | ret |
||
237 | serge | 1117 | endp |
1118 | |||
164 | serge | 1119 | include "debug.inc"256 |