Rev 31 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
31 | halyavin | 1 | |
2 | ; Copyright (c) 1999-2006, Tomasz Grysztar. |
||
109 | heavyiron | 3 | ; All rights reserved. |
31 | halyavin | 4 | |
5 | |||
6 | push ebp |
||
109 | heavyiron | 7 | call get_fp_value |
8 | jnc fp_expression |
||
9 | mov [current_offset],esp |
||
10 | expression_loop: |
||
31 | halyavin | 11 | push edi |
109 | heavyiron | 12 | mov edi,single_operand_operators |
13 | call get_operator |
||
14 | pop edi |
||
15 | or al,al |
||
16 | jz expression_element |
||
17 | push eax |
||
18 | jmp expression_loop |
||
19 | expression_element: |
||
20 | mov al,[esi] |
||
21 | cmp al,1Ah |
||
22 | je expression_number |
||
23 | cmp al,22h |
||
24 | je expression_number |
||
25 | cmp al,'(' |
||
26 | je expression_number |
||
27 | mov al,'!' |
||
28 | stos byte [edi] |
||
29 | jmp expression_operator |
||
30 | expression_number: |
||
31 | halyavin | 31 | call convert_number |
109 | heavyiron | 32 | expression_operator: |
31 | halyavin | 33 | push edi |
109 | heavyiron | 34 | mov edi,operators |
35 | call get_operator |
||
36 | pop edi |
||
37 | or al,al |
||
38 | jz expression_end |
||
39 | operators_loop: |
||
31 | halyavin | 40 | cmp esp,[current_offset] |
109 | heavyiron | 41 | je push_operator |
42 | mov bl,al |
||
43 | and bl,0F0h |
||
44 | mov bh,byte [esp] |
||
45 | and bh,0F0h |
||
46 | cmp bl,bh |
||
47 | ja push_operator |
||
48 | pop ebx |
||
49 | mov byte [edi],bl |
||
50 | inc edi |
||
51 | jmp operators_loop |
||
52 | push_operator: |
||
31 | halyavin | 53 | push eax |
109 | heavyiron | 54 | jmp expression_loop |
55 | expression_end: |
||
31 | halyavin | 56 | cmp esp,[current_offset] |
109 | heavyiron | 57 | je expression_converted |
58 | pop eax |
||
59 | stos byte [edi] |
||
60 | jmp expression_end |
||
61 | expression_converted: |
||
31 | halyavin | 62 | pop ebp |
109 | heavyiron | 63 | ret |
64 | fp_expression: |
||
31 | halyavin | 65 | mov al,'.' |
109 | heavyiron | 66 | stos byte [edi] |
67 | mov eax,[fp_value] |
||
68 | stos dword [edi] |
||
69 | mov eax,[fp_value+4] |
||
70 | stos dword [edi] |
||
71 | mov eax,[fp_value+8] |
||
72 | stos dword [edi] |
||
73 | pop ebp |
||
74 | ret |
||
75 | |||
31 | halyavin | 76 | |
77 | lea eax,[edi-10h] |
||
109 | heavyiron | 78 | cmp eax,[labels_list] |
79 | jae out_of_memory |
||
80 | cmp byte [esi],'(' |
||
81 | je expression_value |
||
82 | inc edi |
||
83 | call get_number |
||
84 | jc symbol_value |
||
85 | or ebp,ebp |
||
86 | jz valid_number |
||
87 | mov byte [edi-1],0Fh |
||
88 | ret |
||
89 | valid_number: |
||
31 | halyavin | 90 | cmp dword [edi+4],0 |
109 | heavyiron | 91 | jne qword_number |
92 | cmp word [edi+2],0 |
||
93 | jne dword_number |
||
94 | cmp byte [edi+1],0 |
||
95 | jne word_number |
||
96 | byte_number: |
||
31 | halyavin | 97 | mov byte [edi-1],1 |
109 | heavyiron | 98 | inc edi |
99 | ret |
||
100 | qword_number: |
||
31 | halyavin | 101 | mov byte [edi-1],8 |
109 | heavyiron | 102 | add edi,8 |
103 | ret |
||
104 | dword_number: |
||
31 | halyavin | 105 | mov byte [edi-1],4 |
109 | heavyiron | 106 | scas dword [edi] |
107 | ret |
||
108 | word_number: |
||
31 | halyavin | 109 | mov byte [edi-1],2 |
109 | heavyiron | 110 | scas word [edi] |
111 | ret |
||
112 | expression_value: |
||
31 | halyavin | 113 | mov eax,esp |
109 | heavyiron | 114 | sub eax,100h |
115 | jc stack_overflow |
||
116 | cmp eax,[stack_limit] |
||
117 | jb stack_overflow |
||
118 | inc esi |
||
119 | push [current_offset] |
||
120 | call convert_expression |
||
121 | pop [current_offset] |
||
122 | lods byte [esi] |
||
123 | cmp al,')' |
||
124 | jne invalid_expression |
||
125 | ret |
||
126 | symbol_value: |
||
31 | halyavin | 127 | push edi |
109 | heavyiron | 128 | mov edi,address_registers |
129 | call get_operator |
||
130 | or al,al |
||
131 | jnz register_value |
||
132 | mov edi,directive_operators |
||
133 | call get_operator |
||
134 | pop edi |
||
135 | or al,al |
||
136 | jnz broken_value |
||
137 | lods byte [esi] |
||
138 | cmp al,1Ah |
||
139 | jne invalid_value |
||
140 | lods byte [esi] |
||
141 | movzx ecx,al |
||
142 | call get_label_id |
||
143 | store_label_value: |
||
31 | halyavin | 144 | mov byte [edi-1],11h |
109 | heavyiron | 145 | stos dword [edi] |
146 | ret |
||
147 | broken_value: |
||
31 | halyavin | 148 | mov eax,0Fh |
109 | heavyiron | 149 | jmp store_label_value |
150 | register_value: |
||
31 | halyavin | 151 | pop edi |
109 | heavyiron | 152 | mov byte [edi-1],10h |
153 | stos byte [edi] |
||
154 | ret |
||
155 | |||
31 | halyavin | 156 | |
157 | xor ebp,ebp |
||
109 | heavyiron | 158 | lods byte [esi] |
159 | cmp al,22h |
||
160 | je get_text_number |
||
161 | cmp al,1Ah |
||
162 | jne not_number |
||
163 | lods byte [esi] |
||
164 | movzx ecx,al |
||
165 | mov [number_start],esi |
||
166 | mov al,[esi] |
||
167 | cmp al,'$' |
||
168 | je number_begin |
||
169 | sub al,30h |
||
170 | cmp al,9 |
||
171 | ja invalid_number |
||
172 | number_begin: |
||
31 | halyavin | 173 | mov ebx,esi |
109 | heavyiron | 174 | add esi,ecx |
175 | push esi |
||
176 | dec esi |
||
177 | mov dword [edi],0 |
||
178 | mov dword [edi+4],0 |
||
179 | cmp byte [ebx],'$' |
||
180 | je pascal_hex_number |
||
181 | cmp word [ebx],'0x' |
||
182 | je get_hex_number |
||
183 | mov al,[esi] |
||
184 | dec esi |
||
185 | cmp al,'h' |
||
186 | je get_hex_number |
||
187 | cmp al,'b' |
||
188 | je get_bin_number |
||
189 | cmp al,'d' |
||
190 | je get_dec_number |
||
191 | cmp al,'o' |
||
192 | je get_oct_number |
||
193 | cmp al,'H' |
||
194 | je get_hex_number |
||
195 | cmp al,'B' |
||
196 | je get_bin_number |
||
197 | cmp al,'D' |
||
198 | je get_dec_number |
||
199 | cmp al,'O' |
||
200 | je get_oct_number |
||
201 | inc esi |
||
202 | get_dec_number: |
||
31 | halyavin | 203 | mov ebx,esi |
109 | heavyiron | 204 | mov esi,[number_start] |
205 | get_dec_digit: |
||
31 | halyavin | 206 | cmp esi,ebx |
109 | heavyiron | 207 | ja number_ok |
208 | xor edx,edx |
||
209 | mov eax,[edi] |
||
210 | shld edx,eax,2 |
||
211 | shl eax,2 |
||
212 | add eax,[edi] |
||
213 | adc edx,0 |
||
214 | add eax,eax |
||
215 | adc edx,edx |
||
216 | mov [edi],eax |
||
217 | mov eax,[edi+4] |
||
218 | add eax,eax |
||
219 | jc dec_out_of_range |
||
220 | add eax,eax |
||
221 | jc dec_out_of_range |
||
222 | add eax,[edi+4] |
||
223 | jc dec_out_of_range |
||
224 | add eax,eax |
||
225 | jc dec_out_of_range |
||
226 | add eax,edx |
||
227 | jc dec_out_of_range |
||
228 | mov [edi+4],eax |
||
229 | movzx eax,byte [esi] |
||
230 | sub al,30h |
||
231 | cmp al,9 |
||
232 | ja bad_number |
||
233 | add [edi],eax |
||
234 | adc dword [edi+4],0 |
||
235 | jc dec_out_of_range |
||
236 | inc esi |
||
237 | jmp get_dec_digit |
||
238 | dec_out_of_range: |
||
31 | halyavin | 239 | or ebp,-1 |
109 | heavyiron | 240 | inc esi |
241 | jmp get_dec_digit |
||
242 | bad_number: |
||
31 | halyavin | 243 | pop eax |
109 | heavyiron | 244 | invalid_number: |
31 | halyavin | 245 | mov esi,[number_start] |
109 | heavyiron | 246 | dec esi |
247 | not_number: |
||
31 | halyavin | 248 | dec esi |
109 | heavyiron | 249 | stc |
250 | ret |
||
251 | get_bin_number: |
||
31 | halyavin | 252 | xor bl,bl |
109 | heavyiron | 253 | get_bin_digit: |
31 | halyavin | 254 | cmp esi,[number_start] |
109 | heavyiron | 255 | jb number_ok |
256 | movzx eax,byte [esi] |
||
257 | sub al,30h |
||
258 | cmp al,1 |
||
259 | ja bad_number |
||
260 | xor edx,edx |
||
261 | mov cl,bl |
||
262 | dec esi |
||
263 | cmp bl,64 |
||
264 | je bin_out_of_range |
||
265 | inc bl |
||
266 | cmp cl,32 |
||
267 | jae bin_digit_high |
||
268 | shl eax,cl |
||
269 | or dword [edi],eax |
||
270 | jmp get_bin_digit |
||
271 | bin_digit_high: |
||
31 | halyavin | 272 | sub cl,32 |
109 | heavyiron | 273 | shl eax,cl |
274 | or dword [edi+4],eax |
||
275 | jmp get_bin_digit |
||
276 | bin_out_of_range: |
||
31 | halyavin | 277 | or al,al |
109 | heavyiron | 278 | jz get_bin_digit |
279 | or ebp,-1 |
||
280 | jmp get_bin_digit |
||
281 | pascal_hex_number: |
||
31 | halyavin | 282 | cmp cl,1 |
109 | heavyiron | 283 | je bad_number |
284 | get_hex_number: |
||
31 | halyavin | 285 | xor bl,bl |
109 | heavyiron | 286 | get_hex_digit: |
31 | halyavin | 287 | cmp esi,[number_start] |
109 | heavyiron | 288 | jb number_ok |
289 | movzx eax,byte [esi] |
||
290 | cmp al,'x' |
||
291 | je hex_number_ok |
||
292 | cmp al,'$' |
||
293 | je pascal_hex_ok |
||
294 | sub al,30h |
||
295 | cmp al,9 |
||
296 | jbe hex_digit_ok |
||
297 | sub al,7 |
||
298 | cmp al,15 |
||
299 | jbe hex_letter_digit_ok |
||
300 | sub al,20h |
||
301 | cmp al,15 |
||
302 | ja bad_number |
||
303 | hex_letter_digit_ok: |
||
31 | halyavin | 304 | cmp al,10 |
109 | heavyiron | 305 | jb bad_number |
306 | hex_digit_ok: |
||
31 | halyavin | 307 | xor edx,edx |
109 | heavyiron | 308 | mov cl,bl |
309 | dec esi |
||
310 | cmp bl,64 |
||
311 | je hex_out_of_range |
||
312 | add bl,4 |
||
313 | cmp cl,32 |
||
314 | jae hex_digit_high |
||
315 | shl eax,cl |
||
316 | or dword [edi],eax |
||
317 | jmp get_hex_digit |
||
318 | hex_digit_high: |
||
31 | halyavin | 319 | sub cl,32 |
109 | heavyiron | 320 | shl eax,cl |
321 | or dword [edi+4],eax |
||
322 | jmp get_hex_digit |
||
323 | hex_out_of_range: |
||
31 | halyavin | 324 | or al,al |
109 | heavyiron | 325 | jz get_hex_digit |
326 | or ebp,-1 |
||
327 | jmp get_hex_digit |
||
328 | get_oct_number: |
||
31 | halyavin | 329 | xor bl,bl |
109 | heavyiron | 330 | get_oct_digit: |
31 | halyavin | 331 | cmp esi,[number_start] |
109 | heavyiron | 332 | jb number_ok |
333 | movzx eax,byte [esi] |
||
334 | sub al,30h |
||
335 | cmp al,7 |
||
336 | ja bad_number |
||
337 | oct_digit_ok: |
||
31 | halyavin | 338 | xor edx,edx |
109 | heavyiron | 339 | mov cl,bl |
340 | dec esi |
||
341 | cmp bl,64 |
||
342 | jae oct_out_of_range |
||
343 | add bl,3 |
||
344 | cmp cl,30 |
||
345 | je oct_digit_wrap |
||
346 | ja oct_digit_high |
||
347 | shl eax,cl |
||
348 | or dword [edi],eax |
||
349 | jmp get_oct_digit |
||
350 | oct_digit_wrap: |
||
31 | halyavin | 351 | shl eax,cl |
109 | heavyiron | 352 | adc dword [edi+4],0 |
353 | or dword [edi],eax |
||
354 | jmp get_oct_digit |
||
355 | oct_digit_high: |
||
31 | halyavin | 356 | sub cl,32 |
109 | heavyiron | 357 | shl eax,cl |
358 | or dword [edi+4],eax |
||
359 | jmp get_oct_digit |
||
360 | oct_out_of_range: |
||
31 | halyavin | 361 | or al,al |
109 | heavyiron | 362 | jz get_oct_digit |
363 | or ebp,-1 |
||
364 | jmp get_oct_digit |
||
365 | hex_number_ok: |
||
31 | halyavin | 366 | dec esi |
109 | heavyiron | 367 | pascal_hex_ok: |
31 | halyavin | 368 | cmp esi,[number_start] |
109 | heavyiron | 369 | jne bad_number |
370 | number_ok: |
||
31 | halyavin | 371 | pop esi |
109 | heavyiron | 372 | number_done: |
31 | halyavin | 373 | clc |
109 | heavyiron | 374 | ret |
375 | get_text_number: |
||
31 | halyavin | 376 | lods dword [esi] |
109 | heavyiron | 377 | mov edx,eax |
378 | xor bl,bl |
||
379 | mov dword [edi],0 |
||
380 | mov dword [edi+4],0 |
||
381 | get_text_character: |
||
31 | halyavin | 382 | sub edx,1 |
109 | heavyiron | 383 | jc number_done |
384 | movzx eax,byte [esi] |
||
385 | inc esi |
||
386 | mov cl,bl |
||
387 | cmp bl,64 |
||
388 | je text_out_of_range |
||
389 | add bl,8 |
||
390 | cmp cl,32 |
||
391 | jae text_character_high |
||
392 | shl eax,cl |
||
393 | or dword [edi],eax |
||
394 | jmp get_text_character |
||
395 | text_character_high: |
||
31 | halyavin | 396 | sub cl,32 |
109 | heavyiron | 397 | shl eax,cl |
398 | or dword [edi+4],eax |
||
399 | jmp get_text_character |
||
400 | text_out_of_range: |
||
31 | halyavin | 401 | or ebp,-1 |
109 | heavyiron | 402 | jmp get_text_character |
403 | |||
31 | halyavin | 404 | |
405 | push edi esi |
||
109 | heavyiron | 406 | lods byte [esi] |
407 | cmp al,1Ah |
||
408 | je fp_value_start |
||
409 | cmp al,'-' |
||
410 | je fp_sign_ok |
||
411 | cmp al,'+' |
||
412 | jne not_fp_value |
||
413 | fp_sign_ok: |
||
31 | halyavin | 414 | lods byte [esi] |
109 | heavyiron | 415 | cmp al,1Ah |
416 | jne not_fp_value |
||
417 | fp_value_start: |
||
31 | halyavin | 418 | lods byte [esi] |
109 | heavyiron | 419 | movzx ecx,al |
420 | cmp cl,1 |
||
421 | jbe not_fp_value |
||
422 | lea edx,[esi+1] |
||
423 | xor ah,ah |
||
424 | check_fp_value: |
||
31 | halyavin | 425 | lods byte [esi] |
109 | heavyiron | 426 | cmp al,'.' |
427 | je fp_character_dot |
||
428 | cmp al,'E' |
||
429 | je fp_character_exp |
||
430 | cmp al,'e' |
||
431 | je fp_character_exp |
||
432 | cmp al,'F' |
||
433 | je fp_last_character |
||
434 | cmp al,'f' |
||
435 | je fp_last_character |
||
436 | digit_expected: |
||
31 | halyavin | 437 | cmp al,'0' |
109 | heavyiron | 438 | jb not_fp_value |
439 | cmp al,'9' |
||
440 | ja not_fp_value |
||
441 | jmp fp_character_ok |
||
442 | fp_character_dot: |
||
31 | halyavin | 443 | cmp esi,edx |
109 | heavyiron | 444 | je not_fp_value |
445 | or ah,ah |
||
446 | jnz not_fp_value |
||
447 | or ah,1 |
||
448 | lods byte [esi] |
||
449 | loop digit_expected |
||
450 | not_fp_value: |
||
31 | halyavin | 451 | pop esi edi |
109 | heavyiron | 452 | stc |
453 | ret |
||
454 | fp_last_character: |
||
455 | cmp cl,1 |
||
456 | jne not_fp_value |
||
457 | or ah,4 |
||
458 | jmp fp_character_ok |
||
459 | fp_character_exp: |
||
31 | halyavin | 460 | cmp esi,edx |
109 | heavyiron | 461 | je not_fp_value |
462 | cmp ah,1 |
||
463 | ja not_fp_value |
||
464 | or ah,2 |
||
465 | cmp ecx,1 |
||
466 | jne fp_character_ok |
||
467 | cmp byte [esi],'+' |
||
468 | je fp_exp_sign |
||
469 | cmp byte [esi],'-' |
||
470 | jne fp_character_ok |
||
471 | fp_exp_sign: |
||
31 | halyavin | 472 | inc esi |
109 | heavyiron | 473 | cmp byte [esi],1Ah |
474 | jne not_fp_value |
||
475 | inc esi |
||
476 | lods byte [esi] |
||
477 | movzx ecx,al |
||
478 | inc ecx |
||
479 | fp_character_ok: |
||
31 | halyavin | 480 | dec ecx |
109 | heavyiron | 481 | jnz check_fp_value |
482 | or ah,ah |
||
483 | jz not_fp_value |
||
484 | pop esi |
||
485 | lods byte [esi] |
||
486 | mov [fp_sign],0 |
||
487 | cmp al,1Ah |
||
488 | je fp_get |
||
489 | inc esi |
||
490 | cmp al,'+' |
||
491 | je fp_get |
||
492 | mov [fp_sign],1 |
||
493 | fp_get: |
||
31 | halyavin | 494 | lods byte [esi] |
109 | heavyiron | 495 | movzx ecx,al |
496 | xor edx,edx |
||
497 | mov edi,fp_value |
||
498 | mov [edi],edx |
||
499 | mov [edi+4],edx |
||
500 | mov [edi+12],edx |
||
501 | call fp_optimize |
||
502 | mov [fp_format],0 |
||
503 | mov al,[esi] |
||
504 | fp_before_dot: |
||
31 | halyavin | 505 | lods byte [esi] |
109 | heavyiron | 506 | cmp al,'.' |
507 | je fp_dot |
||
508 | cmp al,'E' |
||
509 | je fp_exponent |
||
510 | cmp al,'e' |
||
511 | je fp_exponent |
||
512 | cmp al,'F' |
||
513 | je fp_done |
||
514 | cmp al,'f' |
||
515 | je fp_done |
||
516 | sub al,30h |
||
517 | mov edi,fp_value+16 |
||
518 | xor edx,edx |
||
519 | mov dword [edi+12],edx |
||
520 | mov dword [edi],edx |
||
521 | mov dword [edi+4],edx |
||
522 | mov [edi+7],al |
||
523 | mov dl,7 |
||
524 | mov dword [edi+8],edx |
||
525 | call fp_optimize |
||
526 | mov edi,fp_value |
||
527 | push ecx |
||
528 | mov ecx,10 |
||
529 | call fp_mul |
||
530 | pop ecx |
||
531 | mov ebx,fp_value+16 |
||
532 | call fp_add |
||
533 | loop fp_before_dot |
||
534 | fp_dot: |
||
31 | halyavin | 535 | mov edi,fp_value+16 |
109 | heavyiron | 536 | xor edx,edx |
537 | mov [edi],edx |
||
538 | mov [edi+4],edx |
||
539 | mov byte [edi+7],80h |
||
540 | mov [edi+8],edx |
||
541 | mov dword [edi+12],edx |
||
542 | dec ecx |
||
543 | jz fp_done |
||
544 | fp_after_dot: |
||
31 | halyavin | 545 | lods byte [esi] |
109 | heavyiron | 546 | cmp al,'E' |
547 | je fp_exponent |
||
548 | cmp al,'e' |
||
549 | je fp_exponent |
||
550 | cmp al,'F' |
||
551 | je fp_done |
||
552 | cmp al,'f' |
||
553 | je fp_done |
||
554 | inc [fp_format] |
||
555 | cmp [fp_format],80h |
||
556 | jne fp_counter_ok |
||
557 | mov [fp_format],7Fh |
||
558 | fp_counter_ok: |
||
31 | halyavin | 559 | dec esi |
109 | heavyiron | 560 | mov edi,fp_value+16 |
561 | push ecx |
||
562 | mov ecx,10 |
||
563 | call fp_div |
||
564 | push dword [edi] |
||
565 | push dword [edi+4] |
||
566 | push dword [edi+8] |
||
567 | push dword [edi+12] |
||
568 | lods byte [esi] |
||
569 | sub al,30h |
||
570 | movzx ecx,al |
||
571 | call fp_mul |
||
572 | mov ebx,edi |
||
573 | mov edi,fp_value |
||
574 | call fp_add |
||
575 | mov edi,fp_value+16 |
||
576 | pop dword [edi+12] |
||
577 | pop dword [edi+8] |
||
578 | pop dword [edi+4] |
||
579 | pop dword [edi] |
||
580 | pop ecx |
||
581 | loop fp_after_dot |
||
582 | jmp fp_done |
||
583 | fp_exponent: |
||
31 | halyavin | 584 | or [fp_format],80h |
109 | heavyiron | 585 | xor edx,edx |
586 | xor ebp,ebp |
||
587 | dec ecx |
||
588 | jnz get_exponent |
||
589 | cmp byte [esi],'+' |
||
590 | je fp_exponent_sign |
||
591 | cmp byte [esi],'-' |
||
592 | jne fp_done |
||
593 | not ebp |
||
594 | fp_exponent_sign: |
||
31 | halyavin | 595 | add esi,2 |
109 | heavyiron | 596 | lods byte [esi] |
597 | movzx ecx,al |
||
598 | get_exponent: |
||
31 | halyavin | 599 | movzx eax,byte [esi] |
109 | heavyiron | 600 | inc esi |
601 | sub al,30h |
||
602 | cmp al,10 |
||
603 | jae exponent_ok |
||
604 | imul edx,10 |
||
605 | cmp edx,8000h |
||
606 | jae value_out_of_range |
||
607 | add edx,eax |
||
608 | loop get_exponent |
||
609 | exponent_ok: |
||
31 | halyavin | 610 | mov edi,fp_value |
109 | heavyiron | 611 | or edx,edx |
612 | jz fp_done |
||
613 | mov ecx,edx |
||
614 | or ebp,ebp |
||
615 | jnz fp_negative_power |
||
616 | fp_power: |
||
31 | halyavin | 617 | push ecx |
109 | heavyiron | 618 | mov ecx,10 |
619 | call fp_mul |
||
620 | pop ecx |
||
621 | loop fp_power |
||
622 | jmp fp_done |
||
623 | fp_negative_power: |
||
31 | halyavin | 624 | push ecx |
109 | heavyiron | 625 | mov ecx,10 |
626 | call fp_div |
||
627 | pop ecx |
||
628 | loop fp_negative_power |
||
629 | fp_done: |
||
31 | halyavin | 630 | mov edi,fp_value |
109 | heavyiron | 631 | mov al,[fp_format] |
632 | mov [edi+10],al |
||
633 | mov al,[fp_sign] |
||
634 | mov [edi+11],al |
||
635 | test byte [edi+15],80h |
||
636 | jz fp_ok |
||
637 | add dword [edi],1 |
||
638 | adc dword [edi+4],0 |
||
639 | jnc fp_ok |
||
640 | mov eax,[edi+4] |
||
641 | shrd [edi],eax,1 |
||
642 | shr eax,1 |
||
643 | or eax,80000000h |
||
644 | mov [edi+4],eax |
||
645 | inc word [edi+8] |
||
646 | fp_ok: |
||
31 | halyavin | 647 | pop edi |
109 | heavyiron | 648 | clc |
649 | ret |
||
650 | fp_mul: |
||
31 | halyavin | 651 | or ecx,ecx |
109 | heavyiron | 652 | jz fp_zero |
653 | mov eax,[edi+12] |
||
654 | mul ecx |
||
655 | mov [edi+12],eax |
||
656 | mov ebx,edx |
||
657 | mov eax,[edi] |
||
658 | mul ecx |
||
659 | add eax,ebx |
||
660 | adc edx,0 |
||
661 | mov [edi],eax |
||
662 | mov ebx,edx |
||
663 | mov eax,[edi+4] |
||
664 | mul ecx |
||
665 | add eax,ebx |
||
666 | adc edx,0 |
||
667 | mov [edi+4],eax |
||
668 | .loop: |
||
31 | halyavin | 669 | or edx,edx |
109 | heavyiron | 670 | jz .done |
671 | mov eax,[edi] |
||
672 | shrd [edi+12],eax,1 |
||
673 | mov eax,[edi+4] |
||
674 | shrd [edi],eax,1 |
||
675 | shrd eax,edx,1 |
||
676 | mov [edi+4],eax |
||
677 | shr edx,1 |
||
678 | inc dword [edi+8] |
||
679 | cmp dword [edi+8],8000h |
||
680 | jge value_out_of_range |
||
681 | jmp .loop |
||
682 | .done: |
||
31 | halyavin | 683 | ret |
109 | heavyiron | 684 | fp_div: |
31 | halyavin | 685 | mov eax,[edi+4] |
109 | heavyiron | 686 | xor edx,edx |
687 | div ecx |
||
688 | mov [edi+4],eax |
||
689 | mov eax,[edi] |
||
690 | div ecx |
||
691 | mov [edi],eax |
||
692 | mov eax,[edi+12] |
||
693 | div ecx |
||
694 | mov [edi+12],eax |
||
695 | mov ebx,eax |
||
696 | or ebx,[edi] |
||
697 | or ebx,[edi+4] |
||
698 | jz fp_zero |
||
699 | .loop: |
||
31 | halyavin | 700 | test byte [edi+7],80h |
109 | heavyiron | 701 | jnz .exp_ok |
702 | mov eax,[edi] |
||
703 | shld [edi+4],eax,1 |
||
704 | mov eax,[edi+12] |
||
705 | shld [edi],eax,1 |
||
706 | add eax,eax |
||
707 | mov [edi+12],eax |
||
708 | dec dword [edi+8] |
||
709 | add edx,edx |
||
710 | jmp .loop |
||
711 | .exp_ok: |
||
31 | halyavin | 712 | mov eax,edx |
109 | heavyiron | 713 | xor edx,edx |
714 | div ecx |
||
715 | add [edi+12],eax |
||
716 | adc dword [edi],0 |
||
717 | adc dword [edi+4],0 |
||
718 | jnc .done |
||
719 | mov eax,[edi+4] |
||
720 | mov ebx,[edi] |
||
721 | shrd [edi],eax,1 |
||
722 | shrd [edi+12],ebx,1 |
||
723 | shr eax,1 |
||
724 | or eax,80000000h |
||
725 | mov [edi+4],eax |
||
726 | inc dword [edi+8] |
||
727 | .done: |
||
31 | halyavin | 728 | ret |
109 | heavyiron | 729 | fp_add: |
31 | halyavin | 730 | cmp dword [ebx+8],8000h |
109 | heavyiron | 731 | je .done |
732 | cmp dword [edi+8],8000h |
||
733 | je .copy |
||
734 | mov eax,[ebx+8] |
||
735 | cmp eax,[edi+8] |
||
736 | jge .exp_ok |
||
737 | mov eax,[edi+8] |
||
738 | .exp_ok: |
||
31 | halyavin | 739 | call .change_exp |
109 | heavyiron | 740 | xchg ebx,edi |
741 | call .change_exp |
||
742 | xchg ebx,edi |
||
743 | mov edx,[ebx+12] |
||
744 | mov eax,[ebx] |
||
745 | mov ebx,[ebx+4] |
||
746 | add [edi+12],edx |
||
747 | adc [edi],eax |
||
748 | adc [edi+4],ebx |
||
749 | jnc .done |
||
750 | mov eax,[edi] |
||
751 | shrd [edi+12],eax,1 |
||
752 | mov eax,[edi+4] |
||
753 | shrd [edi],eax,1 |
||
754 | shr eax,1 |
||
755 | or eax,80000000h |
||
756 | mov [edi+4],eax |
||
757 | inc dword [edi+8] |
||
758 | .done: |
||
31 | halyavin | 759 | ret |
109 | heavyiron | 760 | .copy: |
31 | halyavin | 761 | mov eax,[ebx] |
109 | heavyiron | 762 | mov [edi],eax |
763 | mov eax,[ebx+4] |
||
764 | mov [edi+4],eax |
||
765 | mov eax,[ebx+8] |
||
766 | mov [edi+8],eax |
||
767 | mov eax,[ebx+12] |
||
768 | mov [edi+12],eax |
||
769 | ret |
||
770 | .change_exp: |
||
31 | halyavin | 771 | push ecx |
109 | heavyiron | 772 | mov ecx,eax |
773 | sub ecx,[ebx+8] |
||
774 | mov edx,[ebx+4] |
||
775 | jecxz .exp_done |
||
776 | .exp_loop: |
||
31 | halyavin | 777 | mov ebp,[ebx] |
109 | heavyiron | 778 | shrd [ebx+12],ebp,1 |
779 | shrd [ebx],edx,1 |
||
780 | shr edx,1 |
||
781 | inc dword [ebx+8] |
||
782 | loop .exp_loop |
||
783 | .exp_done: |
||
31 | halyavin | 784 | mov [ebx+4],edx |
109 | heavyiron | 785 | pop ecx |
786 | ret |
||
787 | fp_optimize: |
||
31 | halyavin | 788 | mov eax,[edi] |
109 | heavyiron | 789 | mov ebp,[edi+4] |
790 | or ebp,[edi] |
||
791 | or ebp,[edi+12] |
||
792 | jz fp_zero |
||
793 | .loop: |
||
31 | halyavin | 794 | test byte [edi+7],80h |
109 | heavyiron | 795 | jnz .done |
796 | shld [edi+4],eax,1 |
||
797 | mov ebp,[edi+12] |
||
798 | shld eax,ebp,1 |
||
799 | mov [edi],eax |
||
800 | shl dword [edi+12],1 |
||
801 | dec dword [edi+8] |
||
802 | jmp .loop |
||
803 | .done: |
||
31 | halyavin | 804 | ret |
109 | heavyiron | 805 | fp_zero: |
31 | halyavin | 806 | mov dword [edi+8],8000h |
109 | heavyiron | 807 | ret |
808 | |||
31 | halyavin | 809 | |
810 | mov [current_offset],edi |
||
109 | heavyiron | 811 | mov [value_undefined],0 |
812 | cmp byte [esi],0 |
||
813 | je get_string_value |
||
814 | cmp byte [esi],'.' |
||
815 | je convert_fp |
||
816 | calculation_loop: |
||
31 | halyavin | 817 | lods byte [esi] |
109 | heavyiron | 818 | cmp al,1 |
819 | je get_byte_number |
||
820 | cmp al,2 |
||
821 | je get_word_number |
||
822 | cmp al,4 |
||
823 | je get_dword_number |
||
824 | cmp al,8 |
||
825 | je get_qword_number |
||
826 | cmp al,0Fh |
||
827 | je value_out_of_range |
||
828 | cmp al,10h |
||
829 | je get_register |
||
830 | cmp al,11h |
||
831 | je get_label |
||
832 | cmp al,')' |
||
833 | je expression_calculated |
||
834 | cmp al,']' |
||
835 | je expression_calculated |
||
836 | cmp al,'!' |
||
837 | je invalid_expression |
||
838 | sub edi,14h |
||
839 | mov ebx,edi |
||
840 | sub ebx,14h |
||
841 | cmp al,0E0h |
||
842 | je calculate_rva |
||
843 | cmp al,0D0h |
||
844 | je calculate_not |
||
845 | cmp al,083h |
||
846 | je calculate_neg |
||
847 | mov dx,[ebx+8] |
||
848 | or dx,[edi+8] |
||
849 | cmp al,80h |
||
850 | je calculate_add |
||
851 | cmp al,81h |
||
852 | je calculate_sub |
||
853 | mov ah,[ebx+12] |
||
854 | or ah,[edi+12] |
||
855 | jz absolute_values_calculation |
||
856 | cmp [error_line],0 |
||
857 | jne absolute_values_calculation |
||
858 | mov eax,[current_line] |
||
859 | mov [error_line],eax |
||
860 | mov [error],invalid_use_of_symbol |
||
861 | absolute_values_calculation: |
||
31 | halyavin | 862 | cmp al,90h |
109 | heavyiron | 863 | je calculate_mul |
864 | cmp al,91h |
||
865 | je calculate_div |
||
866 | or dx,dx |
||
867 | jnz invalid_expression |
||
868 | cmp al,0A0h |
||
869 | je calculate_mod |
||
870 | cmp al,0B0h |
||
871 | je calculate_and |
||
872 | cmp al,0B1h |
||
873 | je calculate_or |
||
874 | cmp al,0B2h |
||
875 | je calculate_xor |
||
876 | cmp al,0C0h |
||
877 | je calculate_shl |
||
878 | cmp al,0C1h |
||
879 | je calculate_shr |
||
880 | jmp invalid_expression |
||
881 | expression_calculated: |
||
31 | halyavin | 882 | sub edi,14h |
109 | heavyiron | 883 | cmp [value_undefined],0 |
884 | je expression_value_ok |
||
885 | xor eax,eax |
||
886 | mov [edi],eax |
||
887 | mov [edi+4],eax |
||
888 | mov [edi+12],al |
||
889 | expression_value_ok: |
||
31 | halyavin | 890 | ret |
109 | heavyiron | 891 | get_byte_number: |
31 | halyavin | 892 | mov word [edi+8],0 |
109 | heavyiron | 893 | mov byte [edi+12],0 |
894 | xor eax,eax |
||
895 | lods byte [esi] |
||
896 | stos dword [edi] |
||
897 | xor al,al |
||
898 | stos dword [edi] |
||
899 | add edi,0Ch |
||
900 | jmp calculation_loop |
||
901 | get_word_number: |
||
31 | halyavin | 902 | mov word [edi+8],0 |
109 | heavyiron | 903 | mov byte [edi+12],0 |
904 | xor eax,eax |
||
905 | lods word [esi] |
||
906 | stos dword [edi] |
||
907 | xor ax,ax |
||
908 | stos dword [edi] |
||
909 | add edi,0Ch |
||
910 | jmp calculation_loop |
||
911 | get_dword_number: |
||
31 | halyavin | 912 | mov word [edi+8],0 |
109 | heavyiron | 913 | mov byte [edi+12],0 |
914 | movs dword [edi],[esi] |
||
915 | xor eax,eax |
||
916 | stos dword [edi] |
||
917 | add edi,0Ch |
||
918 | jmp calculation_loop |
||
919 | get_qword_number: |
||
31 | halyavin | 920 | mov word [edi+8],0 |
109 | heavyiron | 921 | mov byte [edi+12],0 |
922 | movs dword [edi],[esi] |
||
923 | movs dword [edi],[esi] |
||
924 | add edi,0Ch |
||
925 | jmp calculation_loop |
||
926 | get_register: |
||
31 | halyavin | 927 | mov byte [edi+9],0 |
109 | heavyiron | 928 | mov byte [edi+12],0 |
929 | lods byte [esi] |
||
930 | mov [edi+8],al |
||
931 | mov byte [edi+10],1 |
||
932 | xor eax,eax |
||
933 | stos dword [edi] |
||
934 | stos dword [edi] |
||
935 | add edi,0Ch |
||
936 | jmp calculation_loop |
||
937 | get_label: |
||
31 | halyavin | 938 | xor eax,eax |
109 | heavyiron | 939 | mov [edi+8],eax |
940 | mov [edi+12],al |
||
941 | mov [edi+20],eax |
||
942 | lods dword [esi] |
||
943 | cmp eax,0Fh |
||
944 | jb predefined_label |
||
945 | je reserved_word_used_as_symbol |
||
946 | mov ebx,eax |
||
947 | mov ax,[current_pass] |
||
948 | mov [ebx+18],ax |
||
949 | or byte [ebx+8],8 |
||
950 | test byte [ebx+8],1 |
||
951 | jz label_undefined |
||
952 | cmp ax,[ebx+16] |
||
953 | je label_defined |
||
954 | test byte [ebx+8],4 |
||
955 | jnz label_undefined |
||
956 | test byte [ebx+9],1 |
||
957 | jz label_defined |
||
958 | mov eax,[ebx] |
||
959 | sub eax,dword [adjustment] |
||
960 | stos dword [edi] |
||
961 | mov eax,[ebx+4] |
||
962 | sbb eax,dword [adjustment+4] |
||
963 | stos dword [edi] |
||
964 | mov eax,dword [adjustment] |
||
965 | or eax,dword [adjustment+4] |
||
966 | jz got_label |
||
967 | or [next_pass_needed],-1 |
||
968 | jmp got_label |
||
969 | label_defined: |
||
31 | halyavin | 970 | mov eax,[ebx] |
109 | heavyiron | 971 | stos dword [edi] |
972 | mov eax,[ebx+4] |
||
973 | stos dword [edi] |
||
974 | got_label: |
||
31 | halyavin | 975 | mov al,[ebx+11] |
109 | heavyiron | 976 | mov [edi-8+12],al |
977 | mov eax,[ebx+12] |
||
978 | mov [edi-8+8],eax |
||
979 | mov eax,[ebx+20] |
||
980 | mov [edi-8+16],eax |
||
981 | add edi,0Ch |
||
982 | mov al,[ebx+10] |
||
983 | or al,al |
||
984 | jz calculation_loop |
||
985 | cmp [size_override],-1 |
||
986 | je calculation_loop |
||
987 | cmp [size_override],0 |
||
988 | je check_size |
||
989 | cmp [operand_size],0 |
||
990 | jne calculation_loop |
||
991 | mov [operand_size],al |
||
992 | jmp calculation_loop |
||
993 | check_size: |
||
31 | halyavin | 994 | xchg [operand_size],al |
109 | heavyiron | 995 | or al,al |
996 | jz calculation_loop |
||
997 | cmp al,[operand_size] |
||
998 | jne operand_sizes_do_not_match |
||
999 | jmp calculation_loop |
||
1000 | current_offset_label: |
||
31 | halyavin | 1001 | mov al,[labels_type] |
109 | heavyiron | 1002 | mov [edi+12],al |
1003 | mov eax,[org_symbol] |
||
1004 | mov [edi+16],eax |
||
1005 | mov eax,[current_offset] |
||
1006 | xor edx,edx |
||
1007 | sub eax,dword [org_origin] |
||
1008 | sbb edx,dword [org_origin+4] |
||
1009 | stos dword [edi] |
||
1010 | mov eax,edx |
||
1011 | stos dword [edi] |
||
1012 | mov eax,[org_registers] |
||
1013 | stos dword [edi] |
||
1014 | add edi,8 |
||
1015 | jmp calculation_loop |
||
1016 | org_origin_label: |
||
31 | halyavin | 1017 | mov al,[labels_type] |
109 | heavyiron | 1018 | mov [edi+12],al |
1019 | mov eax,[org_symbol] |
||
1020 | mov [edi+16],eax |
||
1021 | mov eax,[org_start] |
||
1022 | xor edx,edx |
||
1023 | sub eax,dword [org_origin] |
||
1024 | sbb edx,dword [org_origin+4] |
||
1025 | stos dword [edi] |
||
1026 | mov eax,edx |
||
1027 | stos dword [edi] |
||
1028 | mov eax,[org_registers] |
||
1029 | stos dword [edi] |
||
1030 | add edi,8 |
||
1031 | jmp calculation_loop |
||
1032 | counter_label: |
||
31 | halyavin | 1033 | mov eax,[counter] |
109 | heavyiron | 1034 | make_dword_label_value: |
31 | halyavin | 1035 | stos dword [edi] |
109 | heavyiron | 1036 | xor eax,eax |
1037 | stos dword [edi] |
||
1038 | add edi,0Ch |
||
1039 | jmp calculation_loop |
||
1040 | timestamp_label: |
||
31 | halyavin | 1041 | call make_timestamp |
109 | heavyiron | 1042 | jmp make_dword_label_value |
1043 | predefined_label: |
||
31 | halyavin | 1044 | or eax,eax |
109 | heavyiron | 1045 | jz current_offset_label |
1046 | cmp eax,1 |
||
1047 | je counter_label |
||
1048 | cmp eax,2 |
||
1049 | je timestamp_label |
||
1050 | cmp eax,3 |
||
1051 | je org_origin_label |
||
1052 | label_undefined: |
||
31 | halyavin | 1053 | cmp [current_pass],1 |
109 | heavyiron | 1054 | ja undefined_value |
1055 | force_next_pass: |
||
31 | halyavin | 1056 | or [next_pass_needed],-1 |
109 | heavyiron | 1057 | undefined_value: |
31 | halyavin | 1058 | mov byte [edi+12],0 |
109 | heavyiron | 1059 | or [value_undefined],-1 |
1060 | xor eax,eax |
||
1061 | stos dword [edi] |
||
1062 | stos dword [edi] |
||
1063 | add edi,0Ch |
||
1064 | cmp [error_line],0 |
||
1065 | jne calculation_loop |
||
1066 | mov eax,[current_line] |
||
1067 | mov [error_line],eax |
||
1068 | mov [error],undefined_symbol |
||
1069 | jmp calculation_loop |
||
1070 | calculate_add: |
||
31 | halyavin | 1071 | mov ecx,[ebx+16] |
109 | heavyiron | 1072 | cmp byte [edi+12],0 |
1073 | je add_values |
||
1074 | mov ecx,[edi+16] |
||
1075 | cmp byte [ebx+12],0 |
||
1076 | je add_values |
||
1077 | cmp [error_line],0 |
||
1078 | jne add_values |
||
1079 | mov eax,[current_line] |
||
1080 | mov [error_line],eax |
||
1081 | mov [error],invalid_use_of_symbol |
||
1082 | add_values: |
||
31 | halyavin | 1083 | mov al,[edi+12] |
109 | heavyiron | 1084 | or [ebx+12],al |
1085 | mov [ebx+16],ecx |
||
1086 | mov eax,[edi] |
||
1087 | add [ebx],eax |
||
1088 | mov eax,[edi+4] |
||
1089 | adc [ebx+4],eax |
||
1090 | or dx,dx |
||
1091 | jz calculation_loop |
||
1092 | push esi |
||
1093 | mov esi,ebx |
||
1094 | lea ebx,[edi+10] |
||
1095 | mov cl,[edi+8] |
||
1096 | call add_register |
||
1097 | lea ebx,[edi+11] |
||
1098 | mov cl,[edi+9] |
||
1099 | call add_register |
||
1100 | pop esi |
||
1101 | jmp calculation_loop |
||
1102 | add_register: |
||
31 | halyavin | 1103 | or cl,cl |
109 | heavyiron | 1104 | jz add_register_done |
1105 | add_register_start: |
||
31 | halyavin | 1106 | cmp [esi+8],cl |
109 | heavyiron | 1107 | jne add_in_second_slot |
1108 | mov al,[ebx] |
||
1109 | add [esi+10],al |
||
1110 | jnz add_register_done |
||
1111 | mov byte [esi+8],0 |
||
1112 | ret |
||
1113 | add_in_second_slot: |
||
31 | halyavin | 1114 | cmp [esi+9],cl |
109 | heavyiron | 1115 | jne create_in_first_slot |
1116 | mov al,[ebx] |
||
1117 | add [esi+11],al |
||
1118 | jnz add_register_done |
||
1119 | mov byte [esi+9],0 |
||
1120 | ret |
||
1121 | create_in_first_slot: |
||
31 | halyavin | 1122 | cmp byte [esi+8],0 |
109 | heavyiron | 1123 | jne create_in_second_slot |
1124 | mov [esi+8],cl |
||
1125 | mov al,[ebx] |
||
1126 | mov [esi+10],al |
||
1127 | ret |
||
1128 | create_in_second_slot: |
||
31 | halyavin | 1129 | cmp byte [esi+9],0 |
109 | heavyiron | 1130 | jne invalid_expression |
1131 | mov [esi+9],cl |
||
1132 | mov al,[ebx] |
||
1133 | mov [esi+11],al |
||
1134 | add_register_done: |
||
31 | halyavin | 1135 | ret |
109 | heavyiron | 1136 | calculate_sub: |
31 | halyavin | 1137 | xor ah,ah |
109 | heavyiron | 1138 | mov ah,[ebx+12] |
1139 | mov al,[edi+12] |
||
1140 | or al,al |
||
1141 | jz sub_values |
||
1142 | cmp al,ah |
||
1143 | jne invalid_sub |
||
1144 | xor ah,ah |
||
1145 | mov ecx,[edi+16] |
||
1146 | cmp ecx,[ebx+16] |
||
1147 | je sub_values |
||
1148 | cmp ecx,[org_symbol] |
||
1149 | jne invalid_sub |
||
1150 | test byte [ebx+12],1 |
||
1151 | jnz invalid_sub |
||
1152 | mov ah,3 |
||
1153 | sub_values: |
||
31 | halyavin | 1154 | mov [ebx+12],ah |
109 | heavyiron | 1155 | mov eax,[edi] |
1156 | sub [ebx],eax |
||
1157 | mov eax,[edi+4] |
||
1158 | sbb [ebx+4],eax |
||
1159 | or dx,dx |
||
1160 | jz calculation_loop |
||
1161 | push esi |
||
1162 | mov esi,ebx |
||
1163 | lea ebx,[edi+10] |
||
1164 | mov cl,[edi+8] |
||
1165 | call sub_register |
||
1166 | lea ebx,[edi+11] |
||
1167 | mov cl,[edi+9] |
||
1168 | call sub_register |
||
1169 | pop esi |
||
1170 | jmp calculation_loop |
||
1171 | invalid_sub: |
||
31 | halyavin | 1172 | cmp [error_line],0 |
109 | heavyiron | 1173 | jne sub_values |
1174 | mov eax,[current_line] |
||
1175 | mov [error_line],eax |
||
1176 | mov [error],invalid_use_of_symbol |
||
1177 | jmp sub_values |
||
1178 | sub_register: |
||
31 | halyavin | 1179 | or cl,cl |
109 | heavyiron | 1180 | jz add_register_done |
1181 | neg byte [ebx] |
||
1182 | jmp add_register_start |
||
1183 | calculate_mul: |
||
31 | halyavin | 1184 | or dx,dx |
109 | heavyiron | 1185 | jz mul_start |
1186 | cmp word [ebx+8],0 |
||
1187 | jne mul_start |
||
1188 | mov eax,[ebx] |
||
1189 | xchg eax,[edi] |
||
1190 | mov [ebx],eax |
||
1191 | mov eax,[ebx+4] |
||
1192 | xchg eax,[edi+4] |
||
1193 | mov [ebx+4],eax |
||
1194 | mov eax,[ebx+8] |
||
1195 | xchg eax,[edi+8] |
||
1196 | mov [ebx+8],eax |
||
1197 | mov eax,[ebx+12] |
||
1198 | xchg eax,[edi+12] |
||
1199 | mov [ebx+12],eax |
||
1200 | mul_start: |
||
31 | halyavin | 1201 | push esi edx |
109 | heavyiron | 1202 | mov esi,ebx |
1203 | xor bl,bl |
||
1204 | bt dword [esi+4],31 |
||
1205 | jnc mul_first_sign_ok |
||
1206 | not dword [esi] |
||
1207 | not dword [esi+4] |
||
1208 | add dword [esi],1 |
||
1209 | adc dword [esi+4],0 |
||
1210 | not bl |
||
1211 | mul_first_sign_ok: |
||
31 | halyavin | 1212 | bt dword [edi+4],31 |
109 | heavyiron | 1213 | jnc mul_second_sign_ok |
1214 | not dword [edi] |
||
1215 | not dword [edi+4] |
||
1216 | add dword [edi],1 |
||
1217 | adc dword [edi+4],0 |
||
1218 | not bl |
||
1219 | mul_second_sign_ok: |
||
31 | halyavin | 1220 | cmp dword [esi+4],0 |
109 | heavyiron | 1221 | jz mul_numbers |
1222 | cmp dword [edi+4],0 |
||
1223 | jnz value_out_of_range |
||
1224 | mul_numbers: |
||
31 | halyavin | 1225 | mov eax,[esi+4] |
109 | heavyiron | 1226 | mul dword [edi] |
1227 | or edx,edx |
||
1228 | jnz value_out_of_range |
||
1229 | mov ecx,eax |
||
1230 | mov eax,[esi] |
||
1231 | mul dword [edi+4] |
||
1232 | or edx,edx |
||
1233 | jnz value_out_of_range |
||
1234 | add ecx,eax |
||
1235 | jc value_out_of_range |
||
1236 | mov eax,[esi] |
||
1237 | mul dword [edi] |
||
1238 | add edx,ecx |
||
1239 | jc value_out_of_range |
||
1240 | test edx,1 shl 31 |
||
1241 | jnz value_out_of_range |
||
1242 | mov [esi],eax |
||
1243 | mov [esi+4],edx |
||
1244 | or bl,bl |
||
1245 | jz mul_ok |
||
1246 | not dword [esi] |
||
1247 | not dword [esi+4] |
||
1248 | add dword [esi],1 |
||
1249 | adc dword [esi+4],0 |
||
1250 | mul_ok: |
||
31 | halyavin | 1251 | pop edx |
109 | heavyiron | 1252 | or dx,dx |
1253 | jz mul_calculated |
||
1254 | cmp word [edi+8],0 |
||
1255 | jne invalid_value |
||
1256 | cmp byte [esi+8],0 |
||
1257 | je mul_first_register_ok |
||
1258 | mov al,[edi] |
||
1259 | cbw |
||
1260 | cwde |
||
1261 | cdq |
||
1262 | cmp edx,[edi+4] |
||
1263 | jne value_out_of_range |
||
1264 | cmp eax,[edi] |
||
1265 | jne value_out_of_range |
||
1266 | imul byte [esi+10] |
||
1267 | mov dl,ah |
||
1268 | cbw |
||
1269 | cmp ah,dl |
||
1270 | jne value_out_of_range |
||
1271 | mov [esi+10],al |
||
1272 | mul_first_register_ok: |
||
31 | halyavin | 1273 | cmp byte [esi+9],0 |
109 | heavyiron | 1274 | je mul_calculated |
1275 | mov al,[edi] |
||
1276 | cbw |
||
1277 | cwde |
||
1278 | cdq |
||
1279 | cmp edx,[edi+4] |
||
1280 | jne value_out_of_range |
||
1281 | cmp eax,[edi] |
||
1282 | jne value_out_of_range |
||
1283 | imul byte [esi+11] |
||
1284 | mov dl,ah |
||
1285 | cbw |
||
1286 | cmp ah,dl |
||
1287 | jne value_out_of_range |
||
1288 | mov [esi+11],al |
||
1289 | mul_calculated: |
||
31 | halyavin | 1290 | pop esi |
109 | heavyiron | 1291 | jmp calculation_loop |
1292 | calculate_div: |
||
31 | halyavin | 1293 | push esi edx |
109 | heavyiron | 1294 | mov esi,ebx |
1295 | call div_64 |
||
1296 | pop edx |
||
1297 | or dx,dx |
||
1298 | jz div_calculated |
||
1299 | cmp byte [esi+8],0 |
||
1300 | je div_first_register_ok |
||
1301 | mov al,[edi] |
||
1302 | cbw |
||
1303 | cwde |
||
1304 | cdq |
||
1305 | cmp edx,[edi+4] |
||
1306 | jne value_out_of_range |
||
1307 | cmp eax,[edi] |
||
1308 | jne value_out_of_range |
||
1309 | or al,al |
||
1310 | jz value_out_of_range |
||
1311 | mov al,[esi+10] |
||
1312 | cbw |
||
1313 | idiv byte [edi] |
||
1314 | or ah,ah |
||
1315 | jnz invalid_use_of_symbol |
||
1316 | mov [esi+10],al |
||
1317 | div_first_register_ok: |
||
31 | halyavin | 1318 | cmp byte [esi+9],0 |
109 | heavyiron | 1319 | je div_calculated |
1320 | mov al,[edi] |
||
1321 | cbw |
||
1322 | cwde |
||
1323 | cdq |
||
1324 | cmp edx,[edi+4] |
||
1325 | jne value_out_of_range |
||
1326 | cmp eax,[edi] |
||
1327 | jne value_out_of_range |
||
1328 | or al,al |
||
1329 | jz value_out_of_range |
||
1330 | mov al,[esi+11] |
||
1331 | cbw |
||
1332 | idiv byte [edi] |
||
1333 | or ah,ah |
||
1334 | jnz invalid_use_of_symbol |
||
1335 | mov [esi+11],al |
||
1336 | div_calculated: |
||
31 | halyavin | 1337 | pop esi |
109 | heavyiron | 1338 | jmp calculation_loop |
1339 | calculate_mod: |
||
31 | halyavin | 1340 | push esi |
109 | heavyiron | 1341 | mov esi,ebx |
1342 | call div_64 |
||
1343 | mov [esi],eax |
||
1344 | mov [esi+4],edx |
||
1345 | pop esi |
||
1346 | jmp calculation_loop |
||
1347 | calculate_and: |
||
31 | halyavin | 1348 | mov eax,[edi] |
109 | heavyiron | 1349 | and [ebx],eax |
1350 | mov eax,[edi+4] |
||
1351 | and [ebx+4],eax |
||
1352 | jmp calculation_loop |
||
1353 | calculate_or: |
||
31 | halyavin | 1354 | mov eax,[edi] |
109 | heavyiron | 1355 | or [ebx],eax |
1356 | mov eax,[edi+4] |
||
1357 | or [ebx+4],eax |
||
1358 | jmp calculation_loop |
||
1359 | calculate_xor: |
||
31 | halyavin | 1360 | mov eax,[edi] |
109 | heavyiron | 1361 | xor [ebx],eax |
1362 | mov eax,[edi+4] |
||
1363 | xor [ebx+4],eax |
||
1364 | jmp calculation_loop |
||
1365 | shr_negative: |
||
31 | halyavin | 1366 | not dword [edi] |
109 | heavyiron | 1367 | not dword [edi+4] |
1368 | add dword [edi],1 |
||
1369 | adc dword [edi+4],0 |
||
1370 | calculate_shl: |
||
31 | halyavin | 1371 | mov eax,dword [edi+4] |
109 | heavyiron | 1372 | bt eax,31 |
1373 | jc shl_negative |
||
1374 | or eax,eax |
||
1375 | jnz zero_value |
||
1376 | mov ecx,[edi] |
||
1377 | cmp ecx,64 |
||
1378 | jae zero_value |
||
1379 | cmp ecx,32 |
||
1380 | jae shl_high |
||
1381 | mov edx,[ebx+4] |
||
1382 | mov eax,[ebx] |
||
1383 | shld edx,eax,cl |
||
1384 | shl eax,cl |
||
1385 | mov [ebx],eax |
||
1386 | mov [ebx+4],edx |
||
1387 | jmp calculation_loop |
||
1388 | shl_high: |
||
31 | halyavin | 1389 | sub cl,32 |
109 | heavyiron | 1390 | mov eax,[ebx] |
1391 | shl eax,cl |
||
1392 | mov [ebx+4],eax |
||
1393 | mov dword [ebx],0 |
||
1394 | jmp calculation_loop |
||
1395 | shl_negative: |
||
31 | halyavin | 1396 | not dword [edi] |
109 | heavyiron | 1397 | not dword [edi+4] |
1398 | add dword [edi],1 |
||
1399 | adc dword [edi+4],0 |
||
1400 | calculate_shr: |
||
31 | halyavin | 1401 | mov eax,dword [edi+4] |
109 | heavyiron | 1402 | bt eax,31 |
1403 | jc shr_negative |
||
1404 | or eax,eax |
||
1405 | jnz zero_value |
||
1406 | mov ecx,[edi] |
||
1407 | cmp ecx,64 |
||
1408 | jae zero_value |
||
1409 | cmp ecx,32 |
||
1410 | jae shr_high |
||
1411 | mov edx,[ebx+4] |
||
1412 | mov eax,[ebx] |
||
1413 | shrd eax,edx,cl |
||
1414 | shr edx,cl |
||
1415 | mov [ebx],eax |
||
1416 | mov [ebx+4],edx |
||
1417 | jmp calculation_loop |
||
1418 | shr_high: |
||
31 | halyavin | 1419 | sub cl,32 |
109 | heavyiron | 1420 | mov eax,[ebx+4] |
1421 | shr eax,cl |
||
1422 | mov [ebx],eax |
||
1423 | mov dword [ebx+4],0 |
||
1424 | jmp calculation_loop |
||
1425 | zero_value: |
||
31 | halyavin | 1426 | mov dword [ebx],0 |
109 | heavyiron | 1427 | mov dword [ebx+4],0 |
1428 | jmp calculation_loop |
||
1429 | calculate_not: |
||
31 | halyavin | 1430 | cmp word [edi+8],0 |
109 | heavyiron | 1431 | jne invalid_expression |
1432 | cmp byte [edi+12],0 |
||
1433 | je not_ok |
||
1434 | cmp [error_line],0 |
||
1435 | jne not_ok |
||
1436 | mov eax,[current_line] |
||
1437 | mov [error_line],eax |
||
1438 | mov [error],invalid_use_of_symbol |
||
1439 | not_ok: |
||
31 | halyavin | 1440 | cmp [value_size],1 |
109 | heavyiron | 1441 | je not_byte |
1442 | cmp [value_size],2 |
||
1443 | je not_word |
||
1444 | cmp [value_size],4 |
||
1445 | je not_dword |
||
1446 | cmp [value_size],6 |
||
1447 | je not_pword |
||
1448 | not_qword: |
||
31 | halyavin | 1449 | not dword [edi] |
109 | heavyiron | 1450 | not dword [edi+4] |
1451 | add edi,14h |
||
1452 | jmp calculation_loop |
||
1453 | not_byte: |
||
31 | halyavin | 1454 | cmp dword [edi+4],0 |
109 | heavyiron | 1455 | jne not_qword |
1456 | cmp word [edi+2],0 |
||
1457 | jne not_qword |
||
1458 | cmp byte [edi+1],0 |
||
1459 | jne not_qword |
||
1460 | not byte [edi] |
||
1461 | add edi,14h |
||
1462 | jmp calculation_loop |
||
1463 | not_word: |
||
31 | halyavin | 1464 | cmp dword [edi+4],0 |
109 | heavyiron | 1465 | jne not_qword |
1466 | cmp word [edi+2],0 |
||
1467 | jne not_qword |
||
1468 | not word [edi] |
||
1469 | add edi,14h |
||
1470 | jmp calculation_loop |
||
1471 | not_dword: |
||
31 | halyavin | 1472 | cmp dword [edi+4],0 |
109 | heavyiron | 1473 | jne not_qword |
1474 | not dword [edi] |
||
1475 | add edi,14h |
||
1476 | jmp calculation_loop |
||
1477 | not_pword: |
||
31 | halyavin | 1478 | cmp word [edi+6],0 |
109 | heavyiron | 1479 | jne not_qword |
1480 | not dword [edi] |
||
1481 | not word [edi+4] |
||
1482 | add edi,14h |
||
1483 | jmp calculation_loop |
||
1484 | calculate_neg: |
||
31 | halyavin | 1485 | cmp word [edi+8],0 |
109 | heavyiron | 1486 | jne invalid_expression |
1487 | cmp byte [edi+12],0 |
||
1488 | je neg_ok |
||
1489 | cmp [error_line],0 |
||
1490 | jne neg_ok |
||
1491 | mov eax,[current_line] |
||
1492 | mov [error_line],eax |
||
1493 | mov [error],invalid_use_of_symbol |
||
1494 | neg_ok: |
||
31 | halyavin | 1495 | mov eax,[edi] |
109 | heavyiron | 1496 | mov edx,[edi+4] |
1497 | mov dword [edi],0 |
||
1498 | mov dword [edi+4],0 |
||
1499 | sub [edi],eax |
||
1500 | sbb [edi+4],edx |
||
1501 | add edi,14h |
||
1502 | jmp calculation_loop |
||
1503 | calculate_rva: |
||
31 | halyavin | 1504 | cmp word [edi+8],0 |
109 | heavyiron | 1505 | jne invalid_expression |
1506 | cmp [output_format],5 |
||
1507 | je calculate_gotoff |
||
1508 | cmp [output_format],3 |
||
1509 | jne invalid_expression |
||
1510 | test [format_flags],8 |
||
1511 | jnz pe64_rva |
||
1512 | mov al,2 |
||
1513 | bt [resolver_flags],0 |
||
1514 | jc rva_type_ok |
||
1515 | xor al,al |
||
1516 | rva_type_ok: |
||
1517 | cmp byte [edi+12],al |
||
1518 | je rva_ok |
||
1519 | cmp [error_line],0 |
||
1520 | jne rva_ok |
||
1521 | mov eax,[current_line] |
||
1522 | mov [error_line],eax |
||
1523 | mov [error],invalid_use_of_symbol |
||
1524 | rva_ok: |
||
31 | halyavin | 1525 | mov byte [edi+12],0 |
109 | heavyiron | 1526 | mov eax,[code_start] |
1527 | mov eax,[eax+34h] |
||
1528 | cdq |
||
1529 | sub [edi],eax |
||
1530 | sbb [edi+4],edx |
||
1531 | add edi,14h |
||
1532 | jmp calculation_loop |
||
1533 | pe64_rva: |
||
31 | halyavin | 1534 | mov al,4 |
109 | heavyiron | 1535 | bt [resolver_flags],0 |
1536 | jc pe64_rva_type_ok |
||
1537 | xor al,al |
||
1538 | pe64_rva_type_ok: |
||
1539 | cmp byte [edi+12],al |
||
1540 | je pe64_rva_ok |
||
1541 | cmp [error_line],0 |
||
1542 | jne pe64_rva_ok |
||
1543 | mov eax,[current_line] |
||
1544 | mov [error_line],eax |
||
1545 | mov [error],invalid_use_of_symbol |
||
1546 | pe64_rva_ok: |
||
31 | halyavin | 1547 | mov byte [edi+12],0 |
109 | heavyiron | 1548 | mov eax,[code_start] |
1549 | mov edx,[eax+34h] |
||
1550 | mov eax,[eax+30h] |
||
1551 | sub [edi],eax |
||
1552 | sbb [edi+4],edx |
||
1553 | add edi,14h |
||
1554 | jmp calculation_loop |
||
1555 | calculate_gotoff: |
||
1556 | test [format_flags],8+1 |
||
1557 | jnz invalid_expression |
||
1558 | cmp byte [edi+12],2 |
||
1559 | je gotoff_ok |
||
1560 | cmp [error_line],0 |
||
1561 | jne pe64_rva_ok |
||
1562 | mov eax,[current_line] |
||
1563 | mov [error_line],eax |
||
1564 | mov [error],invalid_use_of_symbol |
||
1565 | gotoff_ok: |
||
1566 | mov byte [edi+12],5 |
||
1567 | add edi,14h |
||
1568 | jmp calculation_loop |
||
1569 | div_64: |
||
31 | halyavin | 1570 | xor ebx,ebx |
109 | heavyiron | 1571 | cmp dword [edi],0 |
1572 | jne divider_ok |
||
1573 | cmp dword [edi+4],0 |
||
1574 | jne divider_ok |
||
1575 | cmp [next_pass_needed],0 |
||
1576 | je value_out_of_range |
||
1577 | jmp div_done |
||
1578 | divider_ok: |
||
31 | halyavin | 1579 | bt dword [esi+4],31 |
109 | heavyiron | 1580 | jnc div_first_sign_ok |
1581 | not dword [esi] |
||
1582 | not dword [esi+4] |
||
1583 | add dword [esi],1 |
||
1584 | adc dword [esi+4],0 |
||
1585 | not bx |
||
1586 | div_first_sign_ok: |
||
31 | halyavin | 1587 | bt dword [edi+4],31 |
109 | heavyiron | 1588 | jnc div_second_sign_ok |
1589 | not dword [edi] |
||
1590 | not dword [edi+4] |
||
1591 | add dword [edi],1 |
||
1592 | adc dword [edi+4],0 |
||
1593 | not bl |
||
1594 | div_second_sign_ok: |
||
31 | halyavin | 1595 | cmp dword [edi+4],0 |
109 | heavyiron | 1596 | jne div_high |
1597 | mov ecx,[edi] |
||
1598 | mov eax,[esi+4] |
||
1599 | xor edx,edx |
||
1600 | div ecx |
||
1601 | mov [esi+4],eax |
||
1602 | mov eax,[esi] |
||
1603 | div ecx |
||
1604 | mov [esi],eax |
||
1605 | mov eax,edx |
||
1606 | xor edx,edx |
||
1607 | jmp div_done |
||
1608 | div_high: |
||
31 | halyavin | 1609 | mov eax,[esi+4] |
109 | heavyiron | 1610 | xor edx,edx |
1611 | div dword [edi+4] |
||
1612 | mov ebx,[esi] |
||
1613 | mov [esi],eax |
||
1614 | mov dword [esi+4],0 |
||
1615 | mov ecx,edx |
||
1616 | mul dword [edi] |
||
1617 | div_high_loop: |
||
31 | halyavin | 1618 | cmp ecx,edx |
109 | heavyiron | 1619 | ja div_high_done |
1620 | jb div_high_large_correction |
||
1621 | cmp ebx,eax |
||
1622 | jae div_high_done |
||
1623 | div_high_correction: |
||
31 | halyavin | 1624 | dec dword [esi] |
109 | heavyiron | 1625 | sub eax,[edi] |
1626 | sbb edx,[edi+4] |
||
1627 | jnc div_high_loop |
||
1628 | div_high_done: |
||
31 | halyavin | 1629 | sub ebx,eax |
109 | heavyiron | 1630 | sbb ecx,edx |
1631 | mov edx,ecx |
||
1632 | mov eax,ebx |
||
1633 | ret |
||
1634 | div_high_large_correction: |
||
31 | halyavin | 1635 | push eax edx |
109 | heavyiron | 1636 | mov eax,edx |
1637 | sub eax,ecx |
||
1638 | xor edx,edx |
||
1639 | div dword [edi+4] |
||
1640 | shr eax,1 |
||
1641 | jz div_high_small_correction |
||
1642 | sub [esi],eax |
||
1643 | push eax |
||
1644 | mul dword [edi+4] |
||
1645 | sub dword [esp+4],eax |
||
1646 | pop eax |
||
1647 | mul dword [edi] |
||
1648 | sub dword [esp+4],eax |
||
1649 | sbb dword [esp],edx |
||
1650 | pop edx eax |
||
1651 | jmp div_high_loop |
||
1652 | div_high_small_correction: |
||
31 | halyavin | 1653 | pop edx eax |
109 | heavyiron | 1654 | jmp div_high_correction |
1655 | div_done: |
||
31 | halyavin | 1656 | or bh,bh |
109 | heavyiron | 1657 | jz remainder_ok |
1658 | not eax |
||
1659 | not edx |
||
1660 | add eax,1 |
||
1661 | adc edx,0 |
||
1662 | remainder_ok: |
||
31 | halyavin | 1663 | or bl,bl |
109 | heavyiron | 1664 | jz div_ok |
1665 | not dword [esi] |
||
1666 | not dword [esi+4] |
||
1667 | add dword [esi],1 |
||
1668 | adc dword [esi+4],0 |
||
1669 | div_ok: |
||
31 | halyavin | 1670 | ret |
109 | heavyiron | 1671 | convert_fp: |
31 | halyavin | 1672 | inc esi |
109 | heavyiron | 1673 | mov word [edi+8],0 |
1674 | mov byte [edi+12],0 |
||
1675 | mov al,[value_size] |
||
1676 | cmp al,4 |
||
1677 | je convert_fp_dword |
||
1678 | cmp al,8 |
||
1679 | je convert_fp_qword |
||
1680 | jmp invalid_value |
||
1681 | convert_fp_dword: |
||
31 | halyavin | 1682 | xor eax,eax |
109 | heavyiron | 1683 | cmp word [esi+8],8000h |
1684 | je fp_dword_store |
||
1685 | mov bx,[esi+8] |
||
1686 | mov eax,[esi+4] |
||
1687 | shl eax,1 |
||
1688 | shr eax,9 |
||
1689 | jnc fp_dword_ok |
||
1690 | inc eax |
||
1691 | bt eax,23 |
||
1692 | jnc fp_dword_ok |
||
1693 | and eax,1 shl 23 - 1 |
||
1694 | inc bx |
||
1695 | shr eax,1 |
||
1696 | fp_dword_ok: |
||
31 | halyavin | 1697 | add bx,7Fh |
109 | heavyiron | 1698 | cmp bx,100h |
1699 | jae value_out_of_range |
||
1700 | shl ebx,23 |
||
1701 | or eax,ebx |
||
1702 | fp_dword_store: |
||
31 | halyavin | 1703 | mov bl,[esi+11] |
109 | heavyiron | 1704 | shl ebx,31 |
1705 | or eax,ebx |
||
1706 | mov [edi],eax |
||
1707 | xor eax,eax |
||
1708 | mov [edi+4],eax |
||
1709 | add esi,13 |
||
1710 | ret |
||
1711 | convert_fp_qword: |
||
31 | halyavin | 1712 | xor eax,eax |
109 | heavyiron | 1713 | xor edx,edx |
1714 | cmp word [esi+8],8000h |
||
1715 | je fp_qword_store |
||
1716 | mov bx,[esi+8] |
||
1717 | mov eax,[esi] |
||
1718 | mov edx,[esi+4] |
||
1719 | add eax,eax |
||
1720 | adc edx,edx |
||
1721 | mov ecx,edx |
||
1722 | shr edx,12 |
||
1723 | shrd eax,ecx,12 |
||
1724 | jnc fp_qword_ok |
||
1725 | add eax,1 |
||
1726 | adc edx,0 |
||
1727 | bt edx,20 |
||
1728 | jnc fp_qword_ok |
||
1729 | and edx,1 shl 20 - 1 |
||
1730 | inc bx |
||
1731 | shr edx,1 |
||
1732 | rcr eax,1 |
||
1733 | fp_qword_ok: |
||
31 | halyavin | 1734 | add bx,3FFh |
109 | heavyiron | 1735 | cmp bx,800h |
1736 | jae value_out_of_range |
||
1737 | shl ebx,20 |
||
1738 | or edx,ebx |
||
1739 | fp_qword_store: |
||
31 | halyavin | 1740 | mov bl,[esi+11] |
109 | heavyiron | 1741 | shl ebx,31 |
1742 | or edx,ebx |
||
1743 | mov [edi],eax |
||
1744 | mov [edi+4],edx |
||
1745 | add esi,13 |
||
1746 | ret |
||
1747 | get_string_value: |
||
31 | halyavin | 1748 | inc esi |
109 | heavyiron | 1749 | lods dword [esi] |
1750 | mov ecx,eax |
||
1751 | cmp ecx,8 |
||
1752 | ja value_out_of_range |
||
1753 | mov edx,edi |
||
1754 | xor eax,eax |
||
1755 | stos dword [edi] |
||
1756 | stos dword [edi] |
||
1757 | mov edi,edx |
||
1758 | rep movs byte [edi],[esi] |
||
1759 | mov edi,edx |
||
1760 | inc esi |
||
1761 | mov word [edi+8],0 |
||
1762 | mov byte [edi+12],0 |
||
1763 | ret |
||
1764 | |||
31 | halyavin | 1765 | |
1766 | mov [value_size],1 |
||
109 | heavyiron | 1767 | mov [size_override],-1 |
1768 | call calculate_expression |
||
1769 | mov eax,[edi+16] |
||
1770 | mov [symbol_identifier],eax |
||
1771 | mov [value_type],0 |
||
1772 | cmp word [edi+8],0 |
||
1773 | jne invalid_value |
||
1774 | cmp byte [edi+12],0 |
||
1775 | je check_byte_value |
||
1776 | cmp [error_line],0 |
||
1777 | jne check_byte_value |
||
1778 | mov eax,[current_line] |
||
1779 | mov [error_line],eax |
||
1780 | mov [error],invalid_use_of_symbol |
||
1781 | check_byte_value: |
||
31 | halyavin | 1782 | mov eax,[edi] |
109 | heavyiron | 1783 | mov edx,[edi+4] |
1784 | or edx,edx |
||
1785 | jz byte_positive |
||
1786 | cmp edx,-1 |
||
1787 | jne range_exceeded |
||
1788 | cmp eax,-80h |
||
1789 | jb range_exceeded |
||
1790 | ret |
||
1791 | byte_positive: |
||
31 | halyavin | 1792 | cmp eax,100h |
109 | heavyiron | 1793 | jae range_exceeded |
1794 | return_byte_value: |
||
31 | halyavin | 1795 | ret |
109 | heavyiron | 1796 | range_exceeded: |
31 | halyavin | 1797 | xor eax,eax |
109 | heavyiron | 1798 | xor edx,edx |
1799 | cmp [error_line],0 |
||
1800 | jne return_byte_value |
||
1801 | mov ecx,[current_line] |
||
1802 | mov [error_line],ecx |
||
1803 | mov [error],value_out_of_range |
||
1804 | ret |
||
1805 | get_word_value: |
||
31 | halyavin | 1806 | mov [value_size],2 |
109 | heavyiron | 1807 | mov [size_override],-1 |
1808 | call calculate_expression |
||
1809 | mov eax,[edi+16] |
||
1810 | mov [symbol_identifier],eax |
||
1811 | cmp word [edi+8],0 |
||
1812 | jne invalid_value |
||
1813 | mov al,[edi+12] |
||
1814 | mov [value_type],al |
||
1815 | cmp al,2 |
||
1816 | jb check_word_value |
||
1817 | cmp [error_line],0 |
||
1818 | jne check_word_value |
||
1819 | mov eax,[current_line] |
||
1820 | mov [error_line],eax |
||
1821 | mov [error],invalid_use_of_symbol |
||
1822 | check_word_value: |
||
31 | halyavin | 1823 | mov eax,[edi] |
109 | heavyiron | 1824 | mov edx,[edi+4] |
1825 | or edx,edx |
||
1826 | jz word_positive |
||
1827 | cmp edx,-1 |
||
1828 | jne range_exceeded |
||
1829 | cmp eax,-8000h |
||
1830 | jb range_exceeded |
||
1831 | ret |
||
1832 | word_positive: |
||
31 | halyavin | 1833 | cmp eax,10000h |
109 | heavyiron | 1834 | jae range_exceeded |
1835 | ret |
||
1836 | get_dword_value: |
||
31 | halyavin | 1837 | mov [value_size],4 |
109 | heavyiron | 1838 | mov [size_override],-1 |
1839 | call calculate_expression |
||
1840 | mov eax,[edi+16] |
||
1841 | mov [symbol_identifier],eax |
||
1842 | cmp word [edi+8],0 |
||
1843 | jne invalid_value |
||
1844 | mov al,[edi+12] |
||
1845 | mov [value_type],al |
||
1846 | cmp al,4 |
||
1847 | jne check_dword_value |
||
1848 | mov [value_type],2 |
||
1849 | mov eax,[edi] |
||
1850 | cdq |
||
1851 | cmp edx,[edi+4] |
||
1852 | jne range_exceeded |
||
1853 | ret |
||
1854 | check_dword_value: |
||
31 | halyavin | 1855 | mov eax,[edi] |
109 | heavyiron | 1856 | mov edx,[edi+4] |
1857 | or edx,edx |
||
1858 | jz dword_positive |
||
1859 | cmp edx,-1 |
||
1860 | jne range_exceeded |
||
1861 | bt eax,31 |
||
1862 | jnc range_exceeded |
||
1863 | dword_positive: |
||
31 | halyavin | 1864 | ret |
109 | heavyiron | 1865 | get_pword_value: |
31 | halyavin | 1866 | mov [value_size],6 |
109 | heavyiron | 1867 | mov [size_override],-1 |
1868 | call calculate_expression |
||
1869 | mov eax,[edi+16] |
||
1870 | mov [symbol_identifier],eax |
||
1871 | cmp word [edi+8],0 |
||
1872 | jne invalid_value |
||
1873 | mov al,[edi+12] |
||
1874 | mov [value_type],al |
||
1875 | cmp al,4 |
||
1876 | jne check_pword_value |
||
1877 | cmp [error_line],0 |
||
1878 | jne check_pword_value |
||
1879 | mov eax,[current_line] |
||
1880 | mov [error_line],eax |
||
1881 | mov [error],invalid_use_of_symbol |
||
1882 | check_pword_value: |
||
31 | halyavin | 1883 | mov eax,[edi] |
109 | heavyiron | 1884 | mov edx,[edi+4] |
1885 | cmp edx,10000h |
||
1886 | jge range_exceeded |
||
1887 | cmp edx,-8000h |
||
1888 | jl range_exceeded |
||
1889 | ret |
||
1890 | get_qword_value: |
||
31 | halyavin | 1891 | mov [value_size],8 |
109 | heavyiron | 1892 | mov [size_override],-1 |
1893 | call calculate_expression |
||
1894 | mov eax,[edi+16] |
||
1895 | mov [symbol_identifier],eax |
||
1896 | cmp word [edi+8],0 |
||
1897 | jne invalid_value |
||
1898 | mov al,[edi+12] |
||
1899 | mov [value_type],al |
||
1900 | check_qword_value: |
||
31 | halyavin | 1901 | mov eax,[edi] |
109 | heavyiron | 1902 | mov edx,[edi+4] |
1903 | ret |
||
1904 | get_value: |
||
31 | halyavin | 1905 | mov [operand_size],0 |
109 | heavyiron | 1906 | lods byte [esi] |
1907 | call get_size_operator |
||
1908 | cmp al,'(' |
||
1909 | jne invalid_value |
||
1910 | mov al,[operand_size] |
||
1911 | cmp al,1 |
||
1912 | je value_byte |
||
1913 | cmp al,2 |
||
1914 | je value_word |
||
1915 | cmp al,4 |
||
1916 | je value_dword |
||
1917 | cmp al,6 |
||
1918 | je value_pword |
||
1919 | cmp al,8 |
||
1920 | je value_qword |
||
1921 | or al,al |
||
1922 | jnz invalid_value |
||
1923 | value_qword: |
||
31 | halyavin | 1924 | call get_qword_value |
109 | heavyiron | 1925 | ret |
1926 | value_pword: |
||
31 | halyavin | 1927 | call get_pword_value |
109 | heavyiron | 1928 | movzx edx,dx |
1929 | ret |
||
1930 | value_dword: |
||
31 | halyavin | 1931 | call get_dword_value |
109 | heavyiron | 1932 | xor edx,edx |
1933 | ret |
||
1934 | value_word: |
||
31 | halyavin | 1935 | call get_word_value |
109 | heavyiron | 1936 | xor edx,edx |
1937 | movzx eax,ax |
||
1938 | ret |
||
1939 | value_byte: |
||
31 | halyavin | 1940 | call get_byte_value |
109 | heavyiron | 1941 | xor edx,edx |
1942 | movzx eax,al |
||
1943 | ret |
||
1944 | get_address_value: |
||
31 | halyavin | 1945 | mov [address_size],0 |
109 | heavyiron | 1946 | mov [value_size],8 |
1947 | calculate_address: |
||
31 | halyavin | 1948 | cmp byte [esi],'.' |
109 | heavyiron | 1949 | je invalid_address |
1950 | call calculate_expression |
||
1951 | mov eax,[edi+16] |
||
1952 | mov [address_symbol],eax |
||
1953 | mov al,[edi+12] |
||
1954 | mov [value_type],al |
||
1955 | cmp al,5 |
||
1956 | je gotoff_address |
||
1957 | test al,1 |
||
1958 | jnz invalid_use_of_symbol |
||
1959 | or al,al |
||
1960 | jz address_size_ok |
||
1961 | shl al,5 |
||
1962 | jmp address_symbol_ok |
||
1963 | gotoff_address: |
||
1964 | mov al,40h |
||
1965 | address_symbol_ok: |
||
31 | halyavin | 1966 | mov ah,[address_size] |
109 | heavyiron | 1967 | or [address_size],al |
1968 | shr al,4 |
||
1969 | or ah,ah |
||
1970 | jz address_size_ok |
||
1971 | cmp al,ah |
||
1972 | je address_size_ok |
||
1973 | cmp ax,0408h |
||
1974 | jne address_sizes_do_not_agree |
||
1975 | mov [value_type],2 |
||
1976 | mov eax,[edi] |
||
1977 | cdq |
||
1978 | cmp edx,[edi+4] |
||
1979 | je address_size_ok |
||
1980 | cmp [error_line],0 |
||
1981 | jne address_size_ok |
||
1982 | mov ecx,[current_line] |
||
1983 | mov [error_line],ecx |
||
1984 | mov [error],value_out_of_range |
||
1985 | address_size_ok: |
||
1986 | xor bx,bx |
||
1987 | xor cl,cl |
||
1988 | mov ch,[address_size] |
||
1989 | cmp word [edi+8],0 |
||
1990 | je check_immediate_address |
||
1991 | mov al,[edi+8] |
||
1992 | mov dl,[edi+10] |
||
1993 | call get_address_register |
||
1994 | mov al,[edi+9] |
||
1995 | mov dl,[edi+11] |
||
1996 | call get_address_register |
||
1997 | mov ax,bx |
||
1998 | shr ah,4 |
||
1999 | shr al,4 |
||
2000 | or bh,bh |
||
2001 | jz check_address_registers |
||
2002 | or bl,bl |
||
2003 | jz check_address_registers |
||
2004 | cmp al,ah |
||
2005 | jne invalid_address |
||
2006 | check_address_registers: |
||
31 | halyavin | 2007 | or al,ah |
109 | heavyiron | 2008 | cmp al,4 |
2009 | je sib_allowed |
||
2010 | cmp al,8 |
||
2011 | je sib_allowed |
||
2012 | or cl,cl |
||
2013 | jz check_word_value |
||
2014 | cmp cl,1 |
||
2015 | je check_word_value |
||
2016 | jmp invalid_address |
||
2017 | get_address_register: |
||
31 | halyavin | 2018 | or al,al |
109 | heavyiron | 2019 | jz address_register_ok |
2020 | cmp dl,1 |
||
2021 | jne scaled_register |
||
2022 | or bh,bh |
||
2023 | jnz scaled_register |
||
2024 | mov bh,al |
||
2025 | address_register_ok: |
||
31 | halyavin | 2026 | ret |
109 | heavyiron | 2027 | scaled_register: |
31 | halyavin | 2028 | or bl,bl |
109 | heavyiron | 2029 | jnz invalid_address |
2030 | mov bl,al |
||
2031 | mov cl,dl |
||
2032 | jmp address_register_ok |
||
2033 | sib_allowed: |
||
31 | halyavin | 2034 | or bh,bh |
109 | heavyiron | 2035 | jnz check_index_scale |
2036 | cmp cl,2 |
||
2037 | je special_index_scale |
||
2038 | cmp cl,3 |
||
2039 | je special_index_scale |
||
2040 | cmp cl,5 |
||
2041 | je special_index_scale |
||
2042 | cmp cl,9 |
||
2043 | je special_index_scale |
||
2044 | check_index_scale: |
||
31 | halyavin | 2045 | or cl,cl |
109 | heavyiron | 2046 | jz address_registers_ok |
2047 | cmp cl,1 |
||
2048 | je address_registers_ok |
||
2049 | cmp cl,2 |
||
2050 | je address_registers_ok |
||
2051 | cmp cl,4 |
||
2052 | je address_registers_ok |
||
2053 | cmp cl,8 |
||
2054 | je address_registers_ok |
||
2055 | jmp invalid_address |
||
2056 | special_index_scale: |
||
31 | halyavin | 2057 | mov bh,bl |
109 | heavyiron | 2058 | dec cl |
2059 | address_registers_ok: |
||
31 | halyavin | 2060 | jmp check_dword_value |
109 | heavyiron | 2061 | check_immediate_address: |
31 | halyavin | 2062 | cmp [code_type],64 |
109 | heavyiron | 2063 | jne check_dword_value |
2064 | cmp [address_size],4 |
||
2065 | je check_dword_value |
||
2066 | jmp check_qword_value |
||
2067 | get_relative_offset: |
||
31 | halyavin | 2068 | mov [value_size],4 |
109 | heavyiron | 2069 | mov [size_override],-1 |
2070 | call calculate_expression |
||
2071 | calculate_relative_offset: |
||
31 | halyavin | 2072 | push esi |
109 | heavyiron | 2073 | add edi,14h |
2074 | mov esi,[display_buffer] |
||
2075 | sub esi,7 |
||
2076 | lea eax,[esi-14h] |
||
2077 | cmp eax,edi |
||
2078 | jb out_of_memory |
||
2079 | mov byte [esi],11h |
||
2080 | xor eax,eax |
||
2081 | mov dword [esi+1],eax |
||
2082 | mov word [esi+5],')' shl 8 + 81h |
||
2083 | call calculation_loop |
||
2084 | pop esi |
||
2085 | cmp word [edi+8],0 |
||
2086 | jne invalid_value |
||
2087 | mov al,[edi+12] |
||
2088 | mov [value_type],al |
||
2089 | mov eax,[edi+16] |
||
2090 | mov [symbol_identifier],eax |
||
2091 | mov eax,[edi] |
||
2092 | mov edx,[edi+4] |
||
2093 | or edx,edx |
||
2094 | jz offset_positive |
||
2095 | cmp edx,-1 |
||
2096 | jne range_exceeded |
||
2097 | bt eax,31 |
||
2098 | jnc range_exceeded |
||
2099 | ret |
||
2100 | offset_positive: |
||
31 | halyavin | 2101 | bt eax,31 |
109 | heavyiron | 2102 | jc range_exceeded |
2103 | ret |
||
2104 | |||
31 | halyavin | 2105 | |
109 | heavyiron | 2106 | push edi |
2107 | call preevaluate_logical_value |
||
2108 | preevaluation_loop: |
||
2109 | cmp al,0FFh |
||
2110 | je invalid_logical_expression |
||
2111 | mov dl,[esi] |
||
2112 | inc esi |
||
2113 | cmp dl,'|' |
||
2114 | je preevaluate_or |
||
2115 | cmp dl,'&' |
||
2116 | je preevaluate_and |
||
2117 | cmp dl,'}' |
||
2118 | je preevaluation_done |
||
2119 | or dl,dl |
||
2120 | jnz invalid_logical_expression |
||
2121 | preevaluation_done: |
||
2122 | pop edx |
||
2123 | dec esi |
||
2124 | ret |
||
2125 | preevaluate_or: |
||
2126 | cmp al,'1' |
||
2127 | je quick_true |
||
2128 | cmp al,'0' |
||
2129 | je leave_only_following |
||
2130 | push edi |
||
2131 | mov al,dl |
||
2132 | stos byte [edi] |
||
2133 | call preevaluate_logical_value |
||
2134 | pop ebx |
||
2135 | cmp al,'0' |
||
2136 | je leave_only_preceding |
||
2137 | cmp al,'1' |
||
2138 | jne preevaluation_loop |
||
2139 | stos byte [edi] |
||
2140 | xor al,al |
||
2141 | jmp preevaluation_loop |
||
2142 | preevaluate_and: |
||
2143 | cmp al,'0' |
||
2144 | je quick_false |
||
2145 | cmp al,'1' |
||
2146 | je leave_only_following |
||
2147 | push edi |
||
2148 | mov al,dl |
||
2149 | stos byte [edi] |
||
2150 | call preevaluate_logical_value |
||
2151 | pop ebx |
||
2152 | cmp al,'1' |
||
2153 | je leave_only_preceding |
||
2154 | cmp al,'0' |
||
2155 | jne preevaluation_loop |
||
2156 | stos byte [edi] |
||
2157 | xor al,al |
||
2158 | jmp preevaluation_loop |
||
2159 | leave_only_following: |
||
2160 | mov edi,[esp] |
||
2161 | call preevaluate_logical_value |
||
2162 | jmp preevaluation_loop |
||
2163 | leave_only_preceding: |
||
2164 | mov edi,ebx |
||
2165 | xor al,al |
||
2166 | jmp preevaluation_loop |
||
2167 | quick_true: |
||
2168 | call skip_logical_value |
||
2169 | jc invalid_logical_expression |
||
2170 | mov edi,[esp] |
||
2171 | mov al,'1' |
||
2172 | jmp preevaluation_loop |
||
2173 | quick_false: |
||
2174 | call skip_logical_value |
||
2175 | jc invalid_logical_expression |
||
2176 | mov edi,[esp] |
||
2177 | mov al,'0' |
||
2178 | jmp preevaluation_loop |
||
2179 | invalid_logical_expression: |
||
2180 | pop edi |
||
2181 | mov esi,edi |
||
2182 | mov al,0FFh |
||
2183 | stos byte [edi] |
||
2184 | ret |
||
2185 | skip_logical_value: |
||
2186 | cmp byte [esi],'~' |
||
2187 | jne negation_skipped |
||
2188 | inc esi |
||
2189 | jmp skip_logical_value |
||
2190 | negation_skipped: |
||
2191 | cmp byte [esi],'{' |
||
2192 | jne skip_simple_logical_value |
||
2193 | inc esi |
||
2194 | skip_logical_expression: |
||
2195 | call skip_logical_value |
||
2196 | lods byte [esi] |
||
2197 | or al,al |
||
2198 | jz wrongly_structured_logical_expression |
||
2199 | cmp al,0Fh |
||
2200 | je wrongly_structured_logical_expression |
||
2201 | cmp al,'|' |
||
2202 | je skip_logical_expression |
||
2203 | cmp al,'&' |
||
2204 | je skip_logical_expression |
||
2205 | cmp al,'}' |
||
2206 | je logical_value_skipped |
||
2207 | wrongly_structured_logical_expression: |
||
2208 | stc |
||
2209 | ret |
||
2210 | skip_simple_logical_value: |
||
2211 | mov al,[esi] |
||
2212 | or al,al |
||
2213 | jz logical_value_skipped |
||
2214 | cmp al,0Fh |
||
2215 | je logical_value_skipped |
||
2216 | cmp al,'}' |
||
2217 | je logical_value_skipped |
||
2218 | cmp al,'|' |
||
2219 | je logical_value_skipped |
||
2220 | cmp al,'&' |
||
2221 | je logical_value_skipped |
||
2222 | call skip_symbol |
||
2223 | jmp skip_simple_logical_value |
||
2224 | logical_value_skipped: |
||
2225 | clc |
||
2226 | ret |
||
2227 | |||
31 | halyavin | 2228 | |
109 | heavyiron | 2229 | mov ebp,edi |
2230 | preevaluate_negation: |
||
2231 | cmp byte [esi],'~' |
||
2232 | jne preevaluate_negation_ok |
||
2233 | movs byte [edi],[esi] |
||
2234 | jmp preevaluate_negation |
||
2235 | preevaluate_negation_ok: |
||
2236 | mov ebx,esi |
||
2237 | xor edx,edx |
||
2238 | cmp byte [esi],'{' |
||
2239 | jne find_logical_value_boundaries |
||
2240 | movs byte [edi],[esi] |
||
2241 | push ebp |
||
2242 | call preevaluate_logical_expression |
||
2243 | pop ebp |
||
2244 | cmp al,0FFh |
||
2245 | je invalid_logical_value |
||
2246 | cmp byte [esi],'}' |
||
2247 | jne invalid_logical_value |
||
2248 | or al,al |
||
2249 | jnz preevaluated_expression_value |
||
2250 | movs byte [edi],[esi] |
||
2251 | ret |
||
2252 | preevaluated_expression_value: |
||
2253 | inc esi |
||
2254 | lea edx,[edi-1] |
||
2255 | sub edx,ebp |
||
2256 | test edx,1 |
||
2257 | jz expression_negation_ok |
||
2258 | xor al,1 |
||
2259 | expression_negation_ok: |
||
2260 | mov edi,ebp |
||
2261 | ret |
||
2262 | invalid_logical_value: |
||
2263 | mov edi,ebp |
||
2264 | mov al,0FFh |
||
2265 | ret |
||
2266 | find_logical_value_boundaries: |
||
2267 | mov al,[esi] |
||
2268 | or al,al |
||
2269 | jz logical_value_boundaries_found |
||
2270 | cmp al,'}' |
||
2271 | je logical_value_boundaries_found |
||
2272 | cmp al,'|' |
||
2273 | je logical_value_boundaries_found |
||
2274 | cmp al,'&' |
||
2275 | je logical_value_boundaries_found |
||
2276 | or edx,edx |
||
2277 | jnz next_symbol_in_logical_value |
||
2278 | cmp al,0F0h |
||
2279 | je preevaluable_logical_operator |
||
2280 | cmp al,0F7h |
||
2281 | je preevaluable_logical_operator |
||
2282 | cmp al,0F6h |
||
2283 | jne next_symbol_in_logical_value |
||
2284 | preevaluable_logical_operator: |
||
2285 | mov edx,esi |
||
2286 | next_symbol_in_logical_value: |
||
2287 | call skip_symbol |
||
2288 | jmp find_logical_value_boundaries |
||
2289 | logical_value_boundaries_found: |
||
2290 | or edx,edx |
||
2291 | jz non_preevaluable_logical_value |
||
2292 | mov al,[edx] |
||
2293 | cmp al,0F0h |
||
2294 | je compare_symbols |
||
2295 | cmp al,0F7h |
||
2296 | je compare_symbol_types |
||
2297 | cmp al,0F6h |
||
2298 | je scan_symbols_list |
||
2299 | non_preevaluable_logical_value: |
||
2300 | mov ecx,esi |
||
2301 | mov esi,ebx |
||
2302 | sub ecx,esi |
||
2303 | jz invalid_logical_value |
||
2304 | cmp esi,edi |
||
2305 | je leave_logical_value_intact |
||
2306 | rep movs byte [edi],[esi] |
||
2307 | xor al,al |
||
2308 | ret |
||
2309 | leave_logical_value_intact: |
||
2310 | add edi,ecx |
||
2311 | add esi,ecx |
||
2312 | xor al,al |
||
2313 | ret |
||
2314 | compare_symbols: |
||
31 | halyavin | 2315 | lea ecx,[esi-1] |
109 | heavyiron | 2316 | sub ecx,edx |
2317 | mov eax,edx |
||
2318 | sub eax,ebx |
||
2319 | cmp ecx,eax |
||
2320 | jne preevaluated_false |
||
2321 | push esi edi |
||
2322 | mov esi,ebx |
||
2323 | lea edi,[edx+1] |
||
2324 | repe cmps byte [esi],[edi] |
||
2325 | pop edi esi |
||
2326 | je preevaluated_true |
||
2327 | preevaluated_false: |
||
2328 | mov eax,edi |
||
2329 | sub eax,ebp |
||
2330 | test eax,1 |
||
2331 | jnz store_true |
||
2332 | store_false: |
||
2333 | mov edi,ebp |
||
2334 | mov al,'0' |
||
2335 | ret |
||
2336 | preevaluated_true: |
||
2337 | mov eax,edi |
||
2338 | sub eax,ebp |
||
2339 | test eax,1 |
||
2340 | jnz store_false |
||
2341 | store_true: |
||
2342 | mov edi,ebp |
||
2343 | mov al,'1' |
||
2344 | ret |
||
2345 | compare_symbol_types: |
||
31 | halyavin | 2346 | push esi |
109 | heavyiron | 2347 | lea esi,[edx+1] |
2348 | type_comparison: |
||
2349 | cmp esi,[esp] |
||
2350 | je types_compared |
||
2351 | mov al,[esi] |
||
2352 | cmp al,[ebx] |
||
2353 | jne different_type |
||
2354 | cmp al,'(' |
||
2355 | jne equal_type |
||
2356 | mov al,[esi+1] |
||
2357 | mov ah,[ebx+1] |
||
2358 | cmp al,ah |
||
2359 | je equal_type |
||
2360 | or al,al |
||
2361 | jz different_type |
||
2362 | or ah,ah |
||
2363 | jz different_type |
||
2364 | cmp al,'.' |
||
2365 | je different_type |
||
2366 | cmp ah,'.' |
||
2367 | je different_type |
||
2368 | equal_type: |
||
31 | halyavin | 2369 | call skip_symbol |
109 | heavyiron | 2370 | xchg esi,ebx |
2371 | call skip_symbol |
||
2372 | xchg esi,ebx |
||
2373 | jmp type_comparison |
||
2374 | types_compared: |
||
31 | halyavin | 2375 | pop esi |
109 | heavyiron | 2376 | cmp byte [ebx],0F7h |
2377 | jne preevaluated_false |
||
2378 | jmp preevaluated_true |
||
2379 | different_type: |
||
2380 | pop esi |
||
2381 | jmp preevaluated_false |
||
2382 | scan_symbols_list: |
||
31 | halyavin | 2383 | push edi esi |
109 | heavyiron | 2384 | lea esi,[edx+1] |
2385 | sub edx,ebx |
||
2386 | lods byte [esi] |
||
2387 | cmp al,'<' |
||
2388 | jne invalid_symbols_list |
||
2389 | get_next_from_list: |
||
2390 | mov edi,esi |
||
2391 | get_from_list: |
||
2392 | cmp byte [esi],',' |
||
2393 | je compare_in_list |
||
2394 | cmp byte [esi],'>' |
||
2395 | je compare_in_list |
||
2396 | cmp esi,[esp] |
||
2397 | jae invalid_symbols_list |
||
2398 | call skip_symbol |
||
2399 | jmp get_from_list |
||
2400 | compare_in_list: |
||
31 | halyavin | 2401 | mov ecx,esi |
109 | heavyiron | 2402 | sub ecx,edi |
2403 | cmp ecx,edx |
||
2404 | jne not_equal_length_in_list |
||
2405 | mov esi,ebx |
||
2406 | repe cmps byte [esi],[edi] |
||
2407 | mov esi,edi |
||
2408 | jne not_equal_in_list |
||
2409 | skip_rest_of_list: |
||
31 | halyavin | 2410 | cmp byte [esi],'>' |
109 | heavyiron | 2411 | je check_list_end |
2412 | cmp esi,[esp] |
||
2413 | jae invalid_symbols_list |
||
2414 | call skip_symbol |
||
2415 | jmp skip_rest_of_list |
||
2416 | check_list_end: |
||
2417 | inc esi |
||
2418 | cmp esi,[esp] |
||
2419 | jne invalid_symbols_list |
||
2420 | pop esi edi |
||
2421 | jmp preevaluated_true |
||
2422 | not_equal_in_list: |
||
31 | halyavin | 2423 | add esi,ecx |
109 | heavyiron | 2424 | not_equal_length_in_list: |
2425 | lods byte [esi] |
||
2426 | cmp al,',' |
||
2427 | je get_next_from_list |
||
2428 | cmp esi,[esp] |
||
2429 | jne invalid_symbols_list |
||
2430 | pop esi edi |
||
2431 | jmp preevaluated_false |
||
2432 | invalid_symbols_list: |
||
2433 | pop esi edi |
||
2434 | jmp invalid_logical_value |
||
2435 | |||
2436 | |||
2437 | call get_logical_value |
||
2438 | logical_loop: |
||
2439 | cmp byte [esi],'|' |
||
2440 | je logical_or |
||
2441 | cmp byte [esi],'&' |
||
2442 | je logical_and |
||
2443 | ret |
||
2444 | logical_or: |
||
2445 | inc esi |
||
2446 | or al,al |
||
2447 | jnz logical_value_already_determined |
||
2448 | push eax |
||
2449 | call get_logical_value |
||
2450 | pop ebx |
||
2451 | or al,bl |
||
2452 | jmp logical_loop |
||
2453 | logical_and: |
||
2454 | inc esi |
||
2455 | or al,al |
||
2456 | jz logical_value_already_determined |
||
2457 | push eax |
||
2458 | call get_logical_value |
||
2459 | pop ebx |
||
2460 | and al,bl |
||
2461 | jmp logical_loop |
||
2462 | logical_value_already_determined: |
||
2463 | push eax |
||
2464 | call skip_logical_value |
||
2465 | jc invalid_expression |
||
2466 | pop eax |
||
2467 | jmp logical_loop |
||
2468 | get_logical_value: |
||
2469 | xor al,al |
||
2470 | check_for_negation: |
||
2471 | cmp byte [esi],'~' |
||
2472 | jne negation_ok |
||
2473 | inc esi |
||
2474 | xor al,-1 |
||
2475 | jmp check_for_negation |
||
2476 | negation_ok: |
||
2477 | push eax |
||
2478 | mov al,[esi] |
||
2479 | cmp al,'{' |
||
2480 | je logical_expression |
||
2481 | cmp al,0FFh |
||
2482 | je invalid_expression |
||
2483 | cmp al,88h |
||
2484 | je check_for_defined |
||
2485 | cmp al,89h |
||
2486 | je check_for_used |
||
2487 | cmp al,'0' |
||
2488 | je given_false |
||
2489 | cmp al,'1' |
||
2490 | je given_true |
||
2491 | call get_value |
||
2492 | mov bl,[value_type] |
||
2493 | push eax edx ebx |
||
2494 | mov al,[esi] |
||
2495 | or al,al |
||
2496 | jz logical_number |
||
2497 | cmp al,0Fh |
||
2498 | je logical_number |
||
2499 | cmp al,'}' |
||
2500 | je logical_number |
||
2501 | cmp al,'&' |
||
2502 | je logical_number |
||
2503 | cmp al,'|' |
||
2504 | je logical_number |
||
2505 | inc esi |
||
2506 | mov [compare_type],al |
||
2507 | call get_value |
||
2508 | pop ebx |
||
2509 | cmp [next_pass_needed],0 |
||
2510 | jne values_ok |
||
2511 | cmp bl,[value_type] |
||
2512 | jne invalid_use_of_symbol |
||
2513 | values_ok: |
||
31 | halyavin | 2514 | pop ecx ebx |
109 | heavyiron | 2515 | cmp [compare_type],'=' |
2516 | je check_equal |
||
2517 | cmp [compare_type],'>' |
||
2518 | je check_greater |
||
2519 | cmp [compare_type],'<' |
||
2520 | je check_less |
||
2521 | cmp [compare_type],0F1h |
||
2522 | je check_not_equal |
||
2523 | cmp [compare_type],0F2h |
||
2524 | je check_not_less |
||
2525 | cmp [compare_type],0F3h |
||
2526 | je check_not_greater |
||
2527 | jmp invalid_expression |
||
2528 | check_equal: |
||
31 | halyavin | 2529 | cmp eax,ebx |
109 | heavyiron | 2530 | jne return_false |
2531 | cmp edx,ecx |
||
2532 | jne return_false |
||
2533 | jmp return_true |
||
2534 | check_greater: |
||
31 | halyavin | 2535 | cmp edx,ecx |
109 | heavyiron | 2536 | jl return_true |
2537 | jg return_false |
||
2538 | cmp eax,ebx |
||
2539 | jb return_true |
||
2540 | jae return_false |
||
2541 | check_less: |
||
31 | halyavin | 2542 | cmp edx,ecx |
109 | heavyiron | 2543 | jl return_false |
2544 | jg return_true |
||
2545 | cmp eax,ebx |
||
2546 | jbe return_false |
||
2547 | ja return_true |
||
2548 | check_not_less: |
||
31 | halyavin | 2549 | cmp edx,ecx |
109 | heavyiron | 2550 | jl return_true |
2551 | jg return_false |
||
2552 | cmp eax,ebx |
||
2553 | jbe return_true |
||
2554 | ja return_false |
||
2555 | check_not_greater: |
||
31 | halyavin | 2556 | cmp edx,ecx |
109 | heavyiron | 2557 | jl return_false |
2558 | jg return_true |
||
2559 | cmp eax,ebx |
||
2560 | jb return_false |
||
2561 | jae return_true |
||
2562 | check_not_equal: |
||
31 | halyavin | 2563 | cmp eax,ebx |
109 | heavyiron | 2564 | jne return_true |
2565 | cmp edx,ecx |
||
2566 | jne return_true |
||
2567 | jmp return_false |
||
2568 | logical_number: |
||
31 | halyavin | 2569 | pop ebx edx eax |
109 | heavyiron | 2570 | or bl,bl |
2571 | jnz invalid_expression |
||
2572 | or eax,edx |
||
2573 | jnz return_true |
||
2574 | jmp return_false |
||
2575 | check_for_defined: |
||
31 | halyavin | 2576 | or bl,-1 |
109 | heavyiron | 2577 | lods word [esi] |
2578 | cmp ah,'(' |
||
2579 | jne invalid_expression |
||
2580 | check_expression: |
||
31 | halyavin | 2581 | lods byte [esi] |
109 | heavyiron | 2582 | or al,al |
2583 | jz defined_string |
||
2584 | cmp al,'.' |
||
2585 | je defined_fp_value |
||
2586 | cmp al,')' |
||
2587 | je expression_checked |
||
2588 | cmp al,0Fh |
||
2589 | je check_expression |
||
2590 | cmp al,10h |
||
2591 | je defined_register |
||
2592 | cmp al,11h |
||
2593 | je check_if_symbol_defined |
||
2594 | cmp al,80h |
||
2595 | jae check_expression |
||
2596 | movzx eax,al |
||
2597 | add esi,eax |
||
2598 | jmp check_expression |
||
2599 | defined_register: |
||
31 | halyavin | 2600 | inc esi |
109 | heavyiron | 2601 | jmp check_expression |
2602 | defined_fp_value: |
||
31 | halyavin | 2603 | add esi,12 |
109 | heavyiron | 2604 | jmp expression_checked |
2605 | defined_string: |
||
31 | halyavin | 2606 | lods dword [esi] |
109 | heavyiron | 2607 | add esi,eax |
2608 | inc esi |
||
2609 | jmp expression_checked |
||
2610 | check_if_symbol_defined: |
||
31 | halyavin | 2611 | lods dword [esi] |
109 | heavyiron | 2612 | cmp eax,-1 |
2613 | je invalid_expression |
||
2614 | cmp eax,0Fh |
||
2615 | jb check_expression |
||
2616 | je reserved_word_used_as_symbol |
||
2617 | test byte [eax+8],4 |
||
2618 | jnz no_prediction |
||
2619 | test byte [eax+8],1 |
||
2620 | jz symbol_predicted_undefined |
||
2621 | mov cx,[current_pass] |
||
2622 | sub cx,[eax+16] |
||
2623 | jz check_expression |
||
2624 | cmp cx,1 |
||
2625 | ja symbol_predicted_undefined |
||
2626 | or byte [eax+8],40h+80h |
||
2627 | jmp check_expression |
||
2628 | no_prediction: |
||
31 | halyavin | 2629 | test byte [eax+8],1 |
109 | heavyiron | 2630 | jz symbol_undefined |
2631 | mov cx,[current_pass] |
||
2632 | sub cx,[eax+16] |
||
2633 | jz check_expression |
||
2634 | jmp symbol_undefined |
||
2635 | symbol_predicted_undefined: |
||
31 | halyavin | 2636 | or byte [eax+8],40h |
109 | heavyiron | 2637 | and byte [eax+8],not 80h |
2638 | symbol_undefined: |
||
31 | halyavin | 2639 | xor bl,bl |
109 | heavyiron | 2640 | jmp check_expression |
2641 | expression_checked: |
||
31 | halyavin | 2642 | mov al,bl |
109 | heavyiron | 2643 | jmp logical_value_ok |
2644 | check_for_used: |
||
31 | halyavin | 2645 | lods word [esi] |
109 | heavyiron | 2646 | cmp ah,2 |
2647 | jne invalid_expression |
||
2648 | lods dword [esi] |
||
2649 | cmp eax,0Fh |
||
2650 | jb invalid_use_of_symbol |
||
2651 | je reserved_word_used_as_symbol |
||
2652 | inc esi |
||
2653 | test byte [eax+8],8 |
||
2654 | jz not_used |
||
2655 | mov cx,[current_pass] |
||
2656 | sub cx,[eax+18] |
||
2657 | jz return_true |
||
2658 | cmp cx,1 |
||
2659 | ja not_used |
||
2660 | or byte [eax+8],10h+20h |
||
2661 | jmp return_true |
||
2662 | not_used: |
||
31 | halyavin | 2663 | or byte [eax+8],10h |
109 | heavyiron | 2664 | and byte [eax+8],not 20h |
2665 | jmp return_false |
||
2666 | given_false: |
||
2667 | inc esi |
||
2668 | return_false: |
||
31 | halyavin | 2669 | xor al,al |
109 | heavyiron | 2670 | jmp logical_value_ok |
2671 | given_true: |
||
2672 | inc esi |
||
2673 | return_true: |
||
31 | halyavin | 2674 | or al,-1 |
109 | heavyiron | 2675 | jmp logical_value_ok |
2676 | logical_expression: |
||
31 | halyavin | 2677 | inc esi |
109 | heavyiron | 2678 | call calculate_logical_expression |
2679 | push eax |
||
2680 | lods byte [esi] |
||
2681 | cmp al,'}' |
||
2682 | jne invalid_expression |
||
2683 | pop eax |
||
2684 | logical_value_ok: |
||
31 | halyavin | 2685 | pop ebx |
109 | heavyiron | 2686 | xor al,bl |
2687 | ret' |
||
2688 | >' |