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ccec4c39 | 1 | #------------------------------------------------------------------------------\r |
2 | #*\r | |
3 | #* Copyright 2006, Intel Corporation \r | |
4 | #* All rights reserved. This program and the accompanying materials \r | |
5 | #* are licensed and made available under the terms and conditions of the BSD License \r | |
6 | #* which accompanies this distribution. The full text of the license may be found at \r | |
7 | #* http://opensource.org/licenses/bsd-license.php \r | |
8 | #* \r | |
9 | #* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
10 | #* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
11 | #* \r | |
12 | #* efi32.asm\r | |
13 | #* \r | |
14 | #* Abstract:\r | |
15 | #*\r | |
16 | #------------------------------------------------------------------------------\r | |
17 | \r | |
18 | ##############################################################################\r | |
19 | # Now in 32-bit protected mode.\r | |
20 | ##############################################################################\r | |
21 | \r | |
22 | .486: \r | |
23 | #.MODEL flat\r | |
24 | .stack: \r | |
20193e01 | 25 | .code:\r |
ccec4c39 | 26 | .org 0x21000\r |
27 | \r | |
28 | .equ DEFAULT_HANDLER_SIZE, INT1 - INT0\r | |
29 | \r | |
30 | .macro jmpCommonIdtEntry \r | |
31 | # jmp commonIdtEntry - this must be hand coded to keep the assembler from\r | |
32 | # using a 8 bit reletive jump when the entries are\r | |
33 | # within 255 bytes of the common entry. This must\r | |
34 | # be done to maintain the consistency of the size\r | |
35 | # of entry points...\r | |
36 | .byte 0xe9 # jmp 16 bit relative\r | |
37 | .long commonIdtEntry - . - 4 # A problem \r | |
38 | .endm\r | |
39 | \r | |
40 | Start: \r | |
41 | movw %ax, %ds\r | |
42 | movw %ax, %es\r | |
43 | movw %ax, %fs\r | |
44 | movw %ax, %gs\r | |
45 | movw %ax, %ss\r | |
46 | movl $0x001ffff0, %esp\r | |
47 | \r | |
48 | call ClearScreen\r | |
49 | \r | |
50 | # Populate IDT with meaningful offsets for exception handlers...\r | |
51 | sidt Idtr \r | |
52 | \r | |
53 | movl Halt, %eax\r | |
54 | movl %eax, %ebx # use bx to copy 15..0 to descriptors\r | |
55 | shrl $16, %eax # use ax to copy 31..16 to descriptors \r | |
56 | movl $0x78, %ecx # 78h IDT entries to initialize with unique entry points (exceptions)\r | |
57 | movl (Idtr + 2), %esi\r | |
58 | movl (%esi), %edi\r | |
59 | \r | |
60 | LOOP_1: # loop through all IDT entries exception handlers and initialize to default handler\r | |
61 | movw %bx, (%edi) # write bits 15..0 of offset\r | |
62 | movw $0x20, 2(%edi) # SYS_CODE_SEL from GDT\r | |
63 | movw $(0x0e00 | 0x8000), 4(%edi) # type = 386 interrupt gate, present\r | |
64 | movw %ax, 6(%edi) # write bits 31..16 of offset\r | |
65 | addl $8, %edi # move up to next descriptor\r | |
66 | addw DEFAULT_HANDLER_SIZE, %bx # move to next entry point\r | |
67 | loopl LOOP_1 # loop back through again until all descriptors are initialized\r | |
68 | \r | |
69 | ## at this point edi contains the offset of the descriptor for INT 20\r | |
70 | ## and bx contains the low 16 bits of the offset of the default handler\r | |
71 | ## so initialize all the rest of the descriptors with these two values...\r | |
72 | # mov ecx, 101 ; there are 100 descriptors left (INT 20 (14h) - INT 119 (77h)\r | |
73 | #@@: ; loop through all IDT entries exception handlers and initialize to default handler\r | |
74 | # mov word ptr [edi], bx ; write bits 15..0 of offset\r | |
75 | # mov word ptr [edi+2], 20h ; SYS_CODE_SEL from GDT\r | |
76 | # mov word ptr [edi+4], 0e00h OR 8000h ; type = 386 interrupt gate, present\r | |
77 | # mov word ptr [edi+6], ax ; write bits 31..16 of offset\r | |
78 | # add edi, 8 ; move up to next descriptor\r | |
79 | # loop @b ; loop back through again until all descriptors are initialized\r | |
80 | \r | |
81 | \r | |
82 | ## DUMP location of IDT and several of the descriptors\r | |
83 | # mov ecx, 8\r | |
84 | # mov eax, [offset Idtr + 2]\r | |
85 | # mov eax, [eax]\r | |
86 | # mov edi, 0b8000h\r | |
87 | # call PrintDword\r | |
88 | # mov esi, eax\r | |
89 | # mov edi, 0b80a0h\r | |
90 | # jmp OuterLoop\r | |
91 | \r | |
92 | ## \r | |
93 | ## just for fun, let's do a software interrupt to see if we correctly land in the exception handler...\r | |
94 | # mov eax, 011111111h\r | |
95 | # mov ebx, 022222222h\r | |
96 | # mov ecx, 033333333h\r | |
97 | # mov edx, 044444444h\r | |
98 | # mov ebp, 055555555h\r | |
99 | # mov esi, 066666666h\r | |
100 | # mov edi, 077777777h\r | |
101 | # push 011111111h\r | |
102 | # push 022222222h\r | |
103 | # push 033333333h\r | |
104 | # int 119\r | |
105 | \r | |
106 | \r | |
107 | movl $0x22000, %esi # esi = 22000\r | |
108 | movl 0x14(%esi), %eax # eax = [22014]\r | |
109 | addl %eax, %esi # esi = 22000 + [22014] = Base of EFILDR.C\r | |
110 | movl 0x3c(%esi), %ebp # ebp = [22000 + [22014] + 3c] = NT Image Header for EFILDR.C\r | |
111 | addl %esi, %ebp\r | |
112 | movl 0x34(%ebp), %edi # edi = [[22000 + [22014] + 3c] + 30] = ImageBase\r | |
113 | movl 0x28(%ebp), %eax # eax = [[22000 + [22014] + 3c] + 24] = EntryPoint\r | |
114 | addl %edi, %eax # eax = ImageBase + EntryPoint\r | |
115 | movl %eax, EfiLdrOffset # Modify far jump instruction for correct entry point\r | |
116 | \r | |
117 | movw 6(%ebp), %bx # bx = Number of sections\r | |
118 | xorl %eax, %eax\r | |
119 | movw 0x14(%ebp), %ax # ax = Optional Header Size\r | |
120 | addl %eax, %ebp\r | |
121 | addl $0x18, %ebp # ebp = Start of 1st Section\r | |
122 | \r | |
123 | SectionLoop: \r | |
124 | pushl %esi # Save Base of EFILDR.C\r | |
125 | pushl %edi # Save ImageBase\r | |
126 | addl 0x14(%ebp), %esi # esi = Base of EFILDR.C + PointerToRawData\r | |
127 | addl 0x0c(%ebp), %edi # edi = ImageBase + VirtualAddress\r | |
128 | movl 0x10(%ebp), %ecx # ecs = SizeOfRawData\r | |
129 | \r | |
130 | cld\r | |
131 | shrl $2, %ecx\r | |
132 | rep\r | |
133 | movsl\r | |
134 | \r | |
135 | popl %edi # Restore ImageBase\r | |
136 | popl %esi # Restore Base of EFILDR.C\r | |
137 | \r | |
138 | addw $0x28, %bp # ebp = ebp + 028h = Pointer to next section record\r | |
139 | decw %bx\r | |
140 | cmpw $0, %bx\r | |
141 | jne SectionLoop\r | |
142 | \r | |
143 | movzwl Idtr, %eax # get size of IDT\r | |
144 | incl %eax\r | |
145 | addl Idtr + 2, %eax # add to base of IDT to get location of memory map... \r | |
146 | pushl %eax # push memory map location on stack for call to EFILDR...\r | |
147 | \r | |
148 | pushl %eax # push return address (useless, just for stack balance)\r | |
149 | .byte 0xb8\r | |
150 | EfiLdrOffset: \r | |
151 | .long 0x00401000 # Offset of EFILDR\r | |
152 | # mov eax, 401000h\r | |
153 | pushl %eax\r | |
154 | ret\r | |
155 | \r | |
156 | # db "**** DEFAULT IDT ENTRY ***",0\r | |
157 | .align 0x2\r | |
158 | Halt: \r | |
159 | INT0: \r | |
160 | pushl $0x0 # push error code place holder on the stack\r | |
161 | pushl $0x0\r | |
162 | jmpCommonIdtEntry \r | |
163 | # db 0e9h ; jmp 16 bit reletive \r | |
164 | # dd commonIdtEntry - $ - 4 ; offset to jump to\r | |
165 | \r | |
166 | INT1: \r | |
167 | pushl $0x0 # push error code place holder on the stack\r | |
168 | pushl $0x1\r | |
169 | jmpCommonIdtEntry \r | |
170 | \r | |
171 | INT2: \r | |
172 | pushl $0x0 # push error code place holder on the stack\r | |
173 | pushl $0x2\r | |
174 | jmpCommonIdtEntry \r | |
175 | \r | |
176 | INT3: \r | |
177 | pushl $0x0 # push error code place holder on the stack\r | |
178 | pushl $0x3\r | |
179 | jmpCommonIdtEntry \r | |
180 | \r | |
181 | INT4: \r | |
182 | pushl $0x0 # push error code place holder on the stack\r | |
183 | pushl $0x4\r | |
184 | jmpCommonIdtEntry \r | |
185 | \r | |
186 | INT5: \r | |
187 | pushl $0x0 # push error code place holder on the stack\r | |
188 | pushl $0x5\r | |
189 | jmpCommonIdtEntry \r | |
190 | \r | |
191 | INT6: \r | |
192 | pushl $0x0 # push error code place holder on the stack\r | |
193 | pushl $0x6\r | |
194 | jmpCommonIdtEntry \r | |
195 | \r | |
196 | INT7: \r | |
197 | pushl $0x0 # push error code place holder on the stack\r | |
198 | pushl $0x7\r | |
199 | jmpCommonIdtEntry \r | |
200 | \r | |
201 | INT8: \r | |
202 | # Double fault causes an error code to be pushed so no phony push necessary\r | |
203 | nop\r | |
204 | nop\r | |
205 | pushl $0x8\r | |
206 | jmpCommonIdtEntry \r | |
207 | \r | |
208 | INT9: \r | |
209 | pushl $0x0 # push error code place holder on the stack\r | |
210 | pushl $0x9\r | |
211 | jmpCommonIdtEntry \r | |
212 | \r | |
213 | INT10: \r | |
214 | # Invalid TSS causes an error code to be pushed so no phony push necessary\r | |
215 | nop\r | |
216 | nop\r | |
217 | pushl $10\r | |
218 | jmpCommonIdtEntry \r | |
219 | \r | |
220 | INT11: \r | |
221 | # Segment Not Present causes an error code to be pushed so no phony push necessary\r | |
222 | nop\r | |
223 | nop\r | |
224 | pushl $11\r | |
225 | jmpCommonIdtEntry \r | |
226 | \r | |
227 | INT12: \r | |
228 | # Stack fault causes an error code to be pushed so no phony push necessary\r | |
229 | nop\r | |
230 | nop\r | |
231 | pushl $12\r | |
232 | jmpCommonIdtEntry \r | |
233 | \r | |
234 | INT13: \r | |
235 | # GP fault causes an error code to be pushed so no phony push necessary\r | |
236 | nop\r | |
237 | nop\r | |
238 | pushl $13\r | |
239 | jmpCommonIdtEntry \r | |
240 | \r | |
241 | INT14: \r | |
242 | # Page fault causes an error code to be pushed so no phony push necessary\r | |
243 | nop\r | |
244 | nop\r | |
245 | pushl $14\r | |
246 | jmpCommonIdtEntry \r | |
247 | \r | |
248 | INT15: \r | |
249 | pushl $0x0 # push error code place holder on the stack\r | |
250 | pushl $15\r | |
251 | jmpCommonIdtEntry \r | |
252 | \r | |
253 | INT16: \r | |
254 | pushl $0x0 # push error code place holder on the stack\r | |
255 | pushl $16\r | |
256 | jmpCommonIdtEntry \r | |
257 | \r | |
258 | INT17: \r | |
259 | # Alignment check causes an error code to be pushed so no phony push necessary\r | |
260 | nop\r | |
261 | nop\r | |
262 | pushl $17\r | |
263 | jmpCommonIdtEntry \r | |
264 | \r | |
265 | INT18: \r | |
266 | pushl $0x0 # push error code place holder on the stack\r | |
267 | pushl $18\r | |
268 | jmpCommonIdtEntry \r | |
269 | \r | |
270 | INT19: \r | |
271 | pushl $0x0 # push error code place holder on the stack\r | |
272 | pushl $19\r | |
273 | jmpCommonIdtEntry \r | |
274 | \r | |
275 | INTUnknown: \r | |
276 | .rept (0x78 - 20)\r | |
277 | pushl $0x0 # push error code place holder on the stack\r | |
278 | # push $0xxx # push vector number\r | |
279 | .byte 0x6a\r | |
280 | .long ( . - INTUnknown - 3 ) / 9 + 20 # vector number\r | |
281 | jmpCommonIdtEntry \r | |
282 | .endr\r | |
283 | \r | |
284 | commonIdtEntry: \r | |
285 | pushal\r | |
286 | movl %esp, %ebp\r | |
287 | ##\r | |
288 | ## At this point the stack looks like this:\r | |
289 | ##\r | |
290 | ## eflags\r | |
291 | ## Calling CS\r | |
292 | ## Calling EIP\r | |
293 | ## Error code or 0\r | |
294 | ## Int num or 0ffh for unknown int num\r | |
295 | ## eax\r | |
296 | ## ecx\r | |
297 | ## edx\r | |
298 | ## ebx\r | |
299 | ## esp\r | |
300 | ## ebp\r | |
301 | ## esi\r | |
302 | ## edi <------- ESP, EBP\r | |
303 | ## \r | |
304 | \r | |
305 | call ClearScreen\r | |
306 | movl String1, %esi\r | |
307 | call PrintString\r | |
308 | movl 32(%ebp), %eax ## move Int number into EAX \r | |
309 | cmpl $19, %eax\r | |
310 | ja PrintDefaultString\r | |
311 | PrintExceptionString: \r | |
312 | shll $2, %eax ## multiply by 4 to get offset from StringTable to actual string address\r | |
313 | addl StringTable, %eax\r | |
314 | movl (%eax), %esi\r | |
315 | jmp PrintTheString\r | |
316 | PrintDefaultString: \r | |
317 | movl IntUnknownString, %esi\r | |
318 | # patch Int number\r | |
319 | movl %eax, %edx\r | |
320 | call A2C\r | |
321 | movb %al, 1(%esi)\r | |
322 | movl %edx, %eax\r | |
323 | shrl $4, %eax\r | |
324 | call A2C\r | |
325 | movb %al, (%esi)\r | |
326 | PrintTheString: \r | |
327 | call PrintString\r | |
328 | movl String2, %esi\r | |
329 | call PrintString\r | |
330 | movl 44(%ebp), %eax # CS\r | |
331 | call PrintDword\r | |
332 | movb ':', %al\r | |
333 | movb %al, (%edi)\r | |
334 | addl $2, %edi\r | |
335 | movl 40(%ebp), %eax # EIP\r | |
336 | call PrintDword\r | |
337 | movl String3, %esi\r | |
338 | call PrintString\r | |
339 | \r | |
340 | movl $0xb8140, %edi\r | |
341 | \r | |
342 | movl StringEax, %esi # eax\r | |
343 | call PrintString\r | |
344 | movl 28(%ebp), %eax\r | |
345 | call PrintDword\r | |
346 | \r | |
347 | movl StringEbx, %esi # ebx\r | |
348 | call PrintString\r | |
349 | movl 16(%ebp), %eax\r | |
350 | call PrintDword\r | |
351 | \r | |
352 | movl StringEcx, %esi # ecx\r | |
353 | call PrintString\r | |
354 | movl 24(%ebp), %eax\r | |
355 | call PrintDword\r | |
356 | \r | |
357 | movl StringEdx, %esi # edx\r | |
358 | call PrintString\r | |
359 | movl 20(%ebp), %eax\r | |
360 | call PrintDword\r | |
361 | \r | |
362 | movl StringEcode, %esi # error code\r | |
363 | call PrintString\r | |
364 | movl 36(%ebp), %eax\r | |
365 | call PrintDword\r | |
366 | \r | |
367 | movl $0xb81e0, %edi\r | |
368 | \r | |
369 | movl StringEsp, %esi # esp\r | |
370 | call PrintString\r | |
371 | movl 12(%ebp), %eax\r | |
372 | call PrintDword\r | |
373 | \r | |
374 | movl StringEbp, %esi # ebp\r | |
375 | call PrintString\r | |
376 | movl 8(%ebp), %eax\r | |
377 | call PrintDword\r | |
378 | \r | |
379 | movl StringEsi, %esi # esi\r | |
380 | call PrintString\r | |
381 | movl 4(%ebp), %eax\r | |
382 | call PrintDword\r | |
383 | \r | |
384 | movl StringEdi, %esi # edi\r | |
385 | call PrintString\r | |
386 | movl (%ebp), %eax\r | |
387 | call PrintDword\r | |
388 | \r | |
389 | movl StringEflags, %esi # eflags\r | |
390 | call PrintString\r | |
391 | movl 48(%ebp), %eax\r | |
392 | call PrintDword\r | |
393 | \r | |
394 | movl $0xb8320, %edi\r | |
395 | \r | |
396 | movl %ebp, %esi\r | |
397 | addl $52, %esi\r | |
398 | movl $8, %ecx\r | |
399 | \r | |
400 | \r | |
401 | OuterLoop: \r | |
402 | pushl %ecx\r | |
403 | movl $8, %ecx\r | |
404 | movl %edi, %edx\r | |
405 | \r | |
406 | InnerLoop: \r | |
407 | movl (%esi), %eax\r | |
408 | call PrintDword\r | |
409 | addl $4, %esi\r | |
410 | movb ' ', %al \r | |
411 | movb %al, (%edi)\r | |
412 | addl $2, %edi\r | |
413 | loop InnerLoop\r | |
414 | \r | |
415 | popl %ecx\r | |
416 | addl $0xa0, %edx\r | |
417 | movl %edx, %edi\r | |
418 | loop OuterLoop\r | |
419 | \r | |
420 | \r | |
421 | movl $0xb8960, %edi\r | |
422 | \r | |
423 | movl 40(%ebp), %eax # EIP\r | |
424 | subl $32*4, %eax\r | |
425 | movl %eax, %esi # esi = eip - 32 DWORD linear (total 64 DWORD)\r | |
426 | \r | |
427 | movl $8, %ecx\r | |
428 | \r | |
429 | OuterLoop1: \r | |
430 | pushl %ecx\r | |
431 | movl $8, %ecx\r | |
432 | movl %edi, %edx\r | |
433 | \r | |
434 | InnerLoop1: \r | |
435 | movl (%esi), %eax\r | |
436 | call PrintDword\r | |
437 | addl $4, %esi\r | |
438 | movb ' ', %al \r | |
439 | movb %al, (%edi)\r | |
440 | addl $2, %edi\r | |
441 | loop InnerLoop1\r | |
442 | \r | |
443 | popl %ecx\r | |
444 | addl $0xa0, %edx\r | |
445 | movl %edx, %edi\r | |
446 | loop OuterLoop1\r | |
447 | \r | |
448 | \r | |
449 | \r | |
450 | # wbinvd ; this intruction does not support in early than 486 arch\r | |
451 | LN_C1: \r | |
452 | jmp LN_C1\r | |
453 | #\r | |
454 | # return\r | |
455 | #\r | |
456 | movl %ebp, %esp\r | |
457 | popal\r | |
458 | addl $8, %esp # error code and INT number\r | |
459 | \r | |
460 | iretl\r | |
461 | \r | |
462 | \r | |
463 | PrintString: \r | |
464 | pushl %eax\r | |
465 | LN_C2: \r | |
466 | movb (%esi), %al\r | |
467 | cmpb $0, %al\r | |
468 | je LN_C3\r | |
469 | movb %al, (%edi)\r | |
470 | incl %esi\r | |
471 | addl $2, %edi\r | |
472 | jmp LN_C2\r | |
473 | LN_C3: \r | |
474 | popl %eax\r | |
475 | ret\r | |
476 | \r | |
477 | ## EAX contains dword to print\r | |
478 | ## EDI contains memory location (screen location) to print it to\r | |
479 | PrintDword: \r | |
480 | pushl %ecx\r | |
481 | pushl %ebx\r | |
482 | pushl %eax\r | |
483 | \r | |
484 | movl $8, %ecx\r | |
485 | looptop: \r | |
486 | roll $4, %eax\r | |
487 | movb %al, %bl\r | |
488 | andb $0xf, %bl\r | |
489 | addb '0', %bl\r | |
490 | cmpb '9', %bl\r | |
491 | jle LN_C4\r | |
492 | addb $7, %bl\r | |
493 | LN_C4: \r | |
494 | movb %bl, (%edi)\r | |
495 | addl $2, %edi\r | |
496 | loop looptop\r | |
497 | #wbinvd\r | |
498 | \r | |
499 | popl %eax\r | |
500 | popl %ebx\r | |
501 | popl %ecx\r | |
502 | ret\r | |
503 | \r | |
504 | ClearScreen: \r | |
505 | pushl %eax\r | |
506 | pushl %ecx\r | |
507 | \r | |
508 | movb ' ', %al\r | |
509 | movb $0xc, %ah\r | |
510 | movl $0xb8000, %edi\r | |
511 | movl $80*24, %ecx\r | |
512 | LN_C5: \r | |
513 | movw %ax, (%edi)\r | |
514 | addl $2, %edi\r | |
515 | loop LN_C5\r | |
516 | movl $0xb8000, %edi\r | |
517 | \r | |
518 | popl %ecx\r | |
519 | popl %eax\r | |
520 | \r | |
521 | ret\r | |
522 | \r | |
523 | A2C: \r | |
524 | andb $0xf, %al\r | |
525 | addb '0', %al\r | |
526 | cmpb '9', %al\r | |
527 | jle LN_C6\r | |
528 | addb $7, %al\r | |
529 | LN_C6: \r | |
530 | ret\r | |
531 | \r | |
532 | String1: .asciz "*** INT "\r | |
533 | \r | |
534 | Int0String: .asciz "00h Divide by 0 -"\r | |
535 | Int1String: .asciz "01h Debug exception -"\r | |
536 | Int2String: .asciz "02h NMI -"\r | |
537 | Int3String: .asciz "03h Breakpoint -"\r | |
538 | Int4String: .asciz "04h Overflow -"\r | |
539 | Int5String: .asciz "05h Bound -"\r | |
540 | Int6String: .asciz "06h Invalid opcode -"\r | |
541 | Int7String: .asciz "07h Device not available -"\r | |
542 | Int8String: .asciz "08h Double fault -"\r | |
543 | Int9String: .asciz "09h Coprocessor seg overrun (reserved) -"\r | |
544 | Int10String: .asciz "0Ah Invalid TSS -"\r | |
545 | Int11String: .asciz "0Bh Segment not present -"\r | |
546 | Int12String: .asciz "0Ch Stack fault -"\r | |
547 | Int13String: .asciz "0Dh General protection fault -"\r | |
548 | Int14String: .asciz "0Eh Page fault -"\r | |
549 | Int15String: .asciz "0Fh (Intel reserved) -"\r | |
550 | Int16String: .asciz "10h Floating point error -"\r | |
551 | Int17String: .asciz "11h Alignment check -"\r | |
552 | Int18String: .asciz "12h Machine check -"\r | |
553 | Int19String: .asciz "13h SIMD Floating-Point Exception -"\r | |
554 | IntUnknownString: .asciz "??h Unknown interrupt -"\r | |
555 | \r | |
556 | StringTable: .long Int0String, Int1String, Int2String, Int3String, \\r | |
557 | Int4String, Int5String, Int6String, Int7String, \\r | |
558 | Int8String, Int9String, Int10String, Int11String, \\r | |
559 | Int12String, Int13String, Int14String, Int15String,\\r | |
560 | Int16String, Int17String, Int18String, Int19String\r | |
561 | \r | |
562 | String2: .asciz " HALT!! *** ("\r | |
563 | String3: .asciz ")"\r | |
564 | StringEax: .asciz "EAX="\r | |
565 | StringEbx: .asciz "EBX="\r | |
566 | StringEcx: .asciz "ECX="\r | |
567 | StringEdx: .asciz "EDX="\r | |
568 | StringEcode: .asciz "ECODE="\r | |
569 | StringEsp: .asciz "ESP="\r | |
570 | StringEbp: .asciz "EBP="\r | |
571 | StringEsi: .asciz "ESI="\r | |
572 | StringEdi: .asciz "EDI="\r | |
573 | StringEflags: .asciz "EFLAGS="\r | |
574 | \r | |
575 | Idtr: .float 0\r | |
576 | \r | |
577 | .org 0x21ffe\r | |
578 | BlockSignature: \r | |
579 | .word 0xaa55\r | |
580 | \r | |
581 | \r |