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Rev | Author | Line No. | Line |
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31 | halyavin | 1 | ; |
2 | ; LAUNCHER - АВТОЗАПУСК ПРОГРАММ |
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3 | ; Код программы совсем не оптимизирован, но очень прост для понимания. |
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4 | ; Этот лаунчер грузит информацию о программах для запуска из файла |
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5 | ; AUTORUN.DAT. Формат очень прост и в комментариях не нуждается. |
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6 | ; |
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7 | ; Компилируйте с помощью FASM 1.52 и выше |
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8 | ; |
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1741 | dunkaist | 9 | include "../../../macros.inc" |
31 | halyavin | 10 | |
11 | use32 |
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12 | org 0x0 |
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13 | db 'MENUET01' ; 8 byte id |
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14 | dd 0x01 ; header version |
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15 | dd START ; start of code |
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16 | dd I_END ; size of image |
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17 | dd 0x8000 ; memory for app |
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18 | dd 0x8000 ; esp |
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19 | dd 0x0 , 0x0 ; I_Param , I_Icon |
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20 | |||
21 | ;include "DEBUG.INC" |
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22 | |||
23 | START: ; start of execution |
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24 | |||
132 | diamond | 25 | ; mov eax, 5 |
26 | ; mov ebx, 10 |
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485 | heavyiron | 27 | ; mcall |
31 | halyavin | 28 | |
1013 | diamond | 29 | ; mcall 18,15 |
132 | diamond | 30 | |
142 | diamond | 31 | mov eax, 70 ; load AUTORUN.DAT |
31 | halyavin | 32 | mov ebx, autorun_dat_info |
485 | heavyiron | 33 | mcall |
1013 | diamond | 34 | add ebx, file_data |
35 | mov [fileend], ebx |
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31 | halyavin | 36 | |
1013 | diamond | 37 | ; this cycle does not contain an obvious exit condition, |
38 | ; but auxiliary procedures (like "get_string") will exit |
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39 | ; at EOF |
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31 | halyavin | 40 | start_program: |
1013 | diamond | 41 | call skip_spaces |
42 | cmp al,'#' |
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43 | jz skip_this_string |
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31 | halyavin | 44 | call clear_strings |
45 | mov edi, program |
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46 | call get_string |
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47 | mov edi, parameters |
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48 | call get_string |
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49 | call get_number |
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1013 | diamond | 50 | ;dps <"STARTING A PROGRAM",13,10> |
31 | halyavin | 51 | call run_program |
1013 | diamond | 52 | skip_this_string: |
31 | halyavin | 53 | call next_line |
1013 | diamond | 54 | jmp start_program |
31 | halyavin | 55 | |
56 | exit: |
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57 | or eax, -1 |
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485 | heavyiron | 58 | mcall |
31 | halyavin | 59 | |
60 | |||
61 | run_program: ; time to delay in eax |
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62 | push eax |
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142 | diamond | 63 | mcall 70, start_info |
31 | halyavin | 64 | pop ebx |
65 | |||
1013 | diamond | 66 | ; if delay is negative, wait for termination |
67 | ; of the spawned process |
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68 | test ebx, ebx |
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69 | js must_wait_for_termination |
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70 | ; otherwise, simply wait |
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31 | halyavin | 71 | mov eax, 5 |
485 | heavyiron | 72 | mcall |
1013 | diamond | 73 | ret |
74 | must_wait_for_termination: |
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75 | mov esi, eax ; save slot for the future |
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76 | ; get process slot |
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77 | mov ecx, eax |
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78 | mcall 18, 21 |
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79 | ; if an error has occured, exit |
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80 | test eax, eax |
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81 | jz child_exited |
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82 | mov ecx, eax |
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83 | ; wait |
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84 | wait_for_termination: |
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85 | mcall 5, 1 |
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86 | mov ebx, processinfo |
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87 | mcall 9 |
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88 | cmp word [ebx+50], 9 ; the slot was freed? |
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89 | jz child_exited |
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90 | cmp dword [ebx+30], esi ; the slot is still occupied by our child? |
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91 | jz wait_for_termination |
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92 | child_exited: |
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93 | ret |
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31 | halyavin | 94 | |
95 | clear_strings: ; clears buffers |
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96 | pushad |
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97 | |||
98 | mov ecx, 60 |
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99 | mov edi, program |
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100 | xor al, al ;mov al, ' ' |
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101 | rep stosb |
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102 | |||
103 | mov ecx, 60 |
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104 | mov edi, parameters |
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105 | rep stosb |
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106 | |||
107 | popad |
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108 | ret |
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109 | |||
110 | |||
111 | get_string: ; pointer to destination buffer in edi |
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112 | pushad |
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113 | call skip_spaces |
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114 | mov esi, [position] |
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115 | ;dpd esi |
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116 | ;dps <13,10> |
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117 | add esi, file_data |
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1999 | clevermous | 118 | cmp byte [esi], '"' |
119 | jz .quoted |
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31 | halyavin | 120 | .start: |
1013 | diamond | 121 | cmp esi, [fileend] |
122 | jae exit |
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31 | halyavin | 123 | lodsb |
124 | cmp al, ' ' |
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1999 | clevermous | 125 | jbe .finish |
31 | halyavin | 126 | stosb |
127 | inc [position] |
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128 | jmp .start |
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129 | .finish: |
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130 | popad |
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1999 | clevermous | 131 | ret |
132 | .quoted: |
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133 | inc esi |
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134 | inc [position] |
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135 | .quoted.start: |
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136 | cmp esi, [fileend] |
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137 | jae exit |
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138 | lodsb |
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139 | inc [position] |
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140 | cmp al, '"' |
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141 | je .finish |
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142 | stosb |
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143 | jmp .quoted.start |
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31 | halyavin | 144 | |
145 | |||
146 | get_number: |
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147 | push ebx esi |
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148 | call skip_spaces |
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149 | mov esi, [position] |
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150 | add esi, file_data |
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151 | xor eax, eax |
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1013 | diamond | 152 | cmp byte [esi], '-' |
153 | jnz @f |
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154 | inc eax |
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155 | inc esi |
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156 | inc [position] |
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157 | @@: |
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158 | push eax |
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159 | xor eax, eax |
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31 | halyavin | 160 | xor ebx, ebx |
161 | .start: |
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1013 | diamond | 162 | cmp esi, [fileend] |
163 | jae .finish |
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31 | halyavin | 164 | lodsb |
142 | diamond | 165 | sub al, '0' |
166 | cmp al, 9 |
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31 | halyavin | 167 | ja .finish |
142 | diamond | 168 | lea ebx,[ebx*4+ebx] |
169 | lea ebx,[ebx*2+eax] |
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31 | halyavin | 170 | inc [position] |
171 | jmp .start |
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172 | .finish: |
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1013 | diamond | 173 | pop eax |
174 | dec eax |
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175 | jnz @f |
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176 | neg ebx |
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177 | @@: |
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31 | halyavin | 178 | mov eax, ebx |
179 | pop esi ebx |
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180 | ret |
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181 | |||
182 | |||
183 | skip_spaces: |
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1013 | diamond | 184 | push esi |
31 | halyavin | 185 | xor eax, eax |
186 | mov esi, [position] |
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187 | add esi, file_data |
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188 | .start: |
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1013 | diamond | 189 | cmp esi, [fileend] |
190 | jae .finish |
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31 | halyavin | 191 | lodsb |
192 | cmp al, ' ' |
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1999 | clevermous | 193 | ja .finish |
31 | halyavin | 194 | inc [position] |
195 | jmp .start |
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196 | .finish: |
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197 | ;dps "NOW AL = " |
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198 | ;mov [tmp],al |
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199 | ;mov edx, tmp |
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200 | ;call debug_outstr |
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201 | ;dps <13,10> |
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1013 | diamond | 202 | pop esi |
31 | halyavin | 203 | ret |
204 | |||
205 | |||
206 | next_line: |
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207 | mov esi, [position] |
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208 | add esi, file_data |
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209 | .start: |
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1013 | diamond | 210 | cmp esi, [fileend] |
211 | jae exit |
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31 | halyavin | 212 | lodsb |
213 | cmp al, 13 |
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214 | je .finish |
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1013 | diamond | 215 | cmp al, 10 |
216 | je .finish |
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31 | halyavin | 217 | inc [position] |
218 | jmp .start |
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219 | .finish: |
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1013 | diamond | 220 | inc [position] |
221 | cmp esi, [fileend] |
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222 | jae exit |
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31 | halyavin | 223 | lodsb |
224 | cmp al, 13 |
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1013 | diamond | 225 | je .finish |
226 | cmp al, 10 |
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227 | je .finish |
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228 | ret |
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31 | halyavin | 229 | |
230 | |||
231 | |||
232 | ; DATA: |
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233 | position dd 0 ; position in file |
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234 | |||
235 | autorun_dat_info: ; AUTORUN.DAT |
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236 | .mode dd 0 ; read file |
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237 | .start_block dd 0 ; block to read |
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142 | diamond | 238 | dd 0 |
239 | .blocks dd 16*512 ; 16*512 bytes max |
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31 | halyavin | 240 | .address dd file_data |
529 | spraid | 241 | db "AUTORUN.DAT",0 |
31 | halyavin | 242 | |
243 | start_info: |
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142 | diamond | 244 | .mode dd 7 |
31 | halyavin | 245 | dd 0 |
246 | .params dd parameters |
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247 | dd 0 |
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142 | diamond | 248 | dd 0 |
31 | halyavin | 249 | .path: ; |
250 | |||
251 | I_END: |
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252 | |||
253 | program rb 61 ; 60 + [0] char |
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254 | parameters rb 61 |
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255 | |||
1013 | diamond | 256 | processinfo rb 1024 |
257 | fileend dd ? |
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31 | halyavin | 258 | |
259 | file_data rb 16*51213,10>13,10>"STARTING> |