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Author SHA1 Message Date
Aleksandar Andrejevic 17a32f3b2a [SOFT386] 
Change the license of Soft386 to GPLv2. The previous license was also
GPLv2, but it had a runtime linking exception. The new license is the
original GPLv2 with no exceptions.


svn path=/branches/ntvdm/; revision=60485
 2013-09-30 22:01:38 +00:00
Aleksandar Andrejevic 1294b156ea [SOFT386] 
Fix previous fix.


svn path=/branches/ntvdm/; revision=60468
 2013-09-30 03:10:38 +00:00
Aleksandar Andrejevic d4d6e6eca9 [SOFT386] 
Fix limit check.


svn path=/branches/ntvdm/; revision=60467
 2013-09-30 03:05:08 +00:00
Aleksandar Andrejevic 6bde6a89b7 [SOFT386] 
Fix previous fix.


svn path=/branches/ntvdm/; revision=60466
 2013-09-30 02:28:17 +00:00
Aleksandar Andrejevic 462be21fd0 [SOFT386] 
Remove whitespace from empty line.
Fix addressing bug.


svn path=/branches/ntvdm/; revision=60465
 2013-09-30 02:06:55 +00:00
Aleksandar Andrejevic 79355ae971 [SOFT386] 
Fix prefix handling.


svn path=/branches/ntvdm/; revision=60464
 2013-09-30 00:27:56 +00:00
Aleksandar Andrejevic b9a1962978 [SOFT386] 
Fix the LOOP instruction. LOOP should loop while ECX is not zero, not otherwise.


svn path=/branches/ntvdm/; revision=60463
 2013-09-30 00:02:53 +00:00
Aleksandar Andrejevic ed24b5ee8e [SOFT386] 
Fetching the immediate operand once is sufficient.


svn path=/branches/ntvdm/; revision=60462
 2013-09-29 23:45:06 +00:00
Aleksandar Andrejevic 747864f105 [SOFT386] 
Move the code for ADD/OR/ADC/SBB/AND/SUB/XOR/CMP to Soft386ArithmeticOperation,
and use that function to implement groups 0x80, 0x81, 0x82 and 0x83.


svn path=/branches/ntvdm/; revision=60461
 2013-09-29 23:38:31 +00:00
Aleksandar Andrejevic fce8b3f276 [SOFT386] 
The immediate operand should be fetched before attempting to read the
MOD-REG-R/M byte operands.


svn path=/branches/ntvdm/; revision=60460
 2013-09-29 22:24:46 +00:00
Aleksandar Andrejevic 6605a6f215 [SOFT386] 
Implement opcode groups 0xC0 and 0xC1, also using Soft386RotateOperation.
Remove two unnecessary blank lines.


svn path=/branches/ntvdm/; revision=60459
 2013-09-29 22:23:01 +00:00
Aleksandar Andrejevic e365b99113 [SOFT386] 
Move the ROL/ROR/RCL/RCR/SHL/SHR/SAL/SAR handling code to Soft386RotateOperation,
then use that to implement opcode groups 0xD0, 0xD1, 0xD2 and 0xD3.


svn path=/branches/ntvdm/; revision=60458
 2013-09-29 22:15:32 +00:00
Aleksandar Andrejevic 4490103840 [SOFT386] 
Implement opcode group 0xD0 (instructions ROL, ROR, RCL, RCR, SHL, SHR, SAL, SAR).


svn path=/branches/ntvdm/; revision=60455
 2013-09-29 18:39:59 +00:00
Aleksandar Andrejevic 9328c2226b [SOFT386] 
Implement opcode group 0xFE.


svn path=/branches/ntvdm/; revision=60453
 2013-09-29 16:07:06 +00:00
Aleksandar Andrejevic f7a2f36dd0 [SOFT386] 
Implement opcode groups 0xC6 and 0xC7.


svn path=/branches/ntvdm/; revision=60452
 2013-09-29 16:01:10 +00:00
Aleksandar Andrejevic 87a7896249 [SOFT386] 
Implement opcode group 0x8F.


svn path=/branches/ntvdm/; revision=60451
 2013-09-29 15:52:20 +00:00
Aleksandar Andrejevic 9331ef28b9 [SOFT386] 
Implement opcode group 0x80. Group 0x82 is just an alias to group 0x80.


svn path=/branches/ntvdm/; revision=60450
 2013-09-29 15:04:43 +00:00
Aleksandar Andrejevic abf9647dd9 [SOFT386] 
Stubplement opcode group handlers.


svn path=/branches/ntvdm/; revision=60441
 2013-09-28 18:56:58 +00:00
Aleksandar Andrejevic 2812f2f8a5 [SOFT386] 
Disallow direct writing to CS. Changing CS must be done with a far jump.


svn path=/branches/ntvdm/; revision=60399
 2013-09-28 03:15:48 +00:00
Aleksandar Andrejevic 6db4f4e558 [SOFT386] 
Implement MOV for segment registers.


svn path=/branches/ntvdm/; revision=60398
 2013-09-28 03:01:07 +00:00
Aleksandar Andrejevic 0c91026f75 [NTVDM] 
Change the instruction in the interrupt handlers to "INC SP" twice
instead of one "ADD SP, 2". It's shorter and supported by soft386 already.


svn path=/branches/ntvdm/; revision=60397
 2013-09-28 00:55:28 +00:00
Aleksandar Andrejevic cad18120fa [SOFT386] 
Fix the BOP opcode. It's LES AX, SP not LES AX, BP.


svn path=/branches/ntvdm/; revision=60396
 2013-09-28 00:46:04 +00:00
Aleksandar Andrejevic 7e119cf40b [SOFT386] 
Implement the LES and LDS instructions.
Add optional support for BOPs (NTVDM-specific).
Fix prefix handling in some functions.
[NTVDM]
Enable BOPs for Soft386 (when NEW_EMULATOR is defined).
Fix the calling convention issue (softx86 uses cdecl, soft386 uses stdcall).


svn path=/branches/ntvdm/; revision=60395
 2013-09-28 00:29:16 +00:00
Aleksandar Andrejevic dc29fa9ab1 [SOFT386] 
Fix the return to VM86 mode. The VM flag must be set before the call to Soft386LoadSegment.


svn path=/branches/ntvdm/; revision=60393
 2013-09-27 21:23:34 +00:00
Aleksandar Andrejevic 78e8653765 [SOFT386] 
Halfplement the IRET instruction (everything except task switching).


svn path=/branches/ntvdm/; revision=60392
 2013-09-27 21:18:09 +00:00
Aleksandar Andrejevic e05e583e56 [SOFT386] 
Implement the ENTER instruction.


svn path=/branches/ntvdm/; revision=60350
 2013-09-25 18:34:57 +00:00
Aleksandar Andrejevic 597a77ed3c [SOFT386] 
Implement the IMUL instruction. Both versions have been implemented in Soft386OpcodeImulModrm.


svn path=/branches/ntvdm/; revision=60344
 2013-09-23 17:29:42 +00:00
Aleksandar Andrejevic 442b56b45b [SOFT386] 
Implement the AAM and AAD instructions.


svn path=/branches/ntvdm/; revision=60342
 2013-09-23 16:03:23 +00:00
Aleksandar Andrejevic b5a9d7490a [SOFT386] 
Implement the POPF instruction.


svn path=/branches/ntvdm/; revision=60341
 2013-09-23 14:10:14 +00:00
Aleksandar Andrejevic 432372c3b6 [SOFT386] 
Implement the MOV AL/AX/EAX, off16/32 and MOV off16/32, AL/AX/EAX instructions.


svn path=/branches/ntvdm/; revision=60289
 2013-09-21 18:44:59 +00:00
Aleksandar Andrejevic 60a7ff2e92 [SOFT386] 
Implement the PUSHF instruction.


svn path=/branches/ntvdm/; revision=60261
 2013-09-21 02:33:01 +00:00
Aleksandar Andrejevic 6a2d76ab68 [SOFT386] 
Fix prefix handling.


svn path=/branches/ntvdm/; revision=60260
 2013-09-21 02:18:41 +00:00
Aleksandar Andrejevic 9d7137b757 [SOFT386] 
Fix the CALL instruction. The offset must be fetched before EIP is pushed.


svn path=/branches/ntvdm/; revision=60259
 2013-09-21 01:00:36 +00:00
Aleksandar Andrejevic 56948f4801 [SOFT386] 
Remove whitespace from empty line.


svn path=/branches/ntvdm/; revision=60258
 2013-09-21 00:45:28 +00:00
Aleksandar Andrejevic 7328873681 [SOFT386] 
Implement external stack modification.
[NTVDM]
Implement EmulatorSetStack for NEW_EMULATOR.


svn path=/branches/ntvdm/; revision=60257
 2013-09-21 00:41:41 +00:00
Aleksandar Andrejevic 34157419d7 [SOFT386] 
Implement the INT, INT3 and INTO instructions (all 3 in Soft386OpcodeInt).


svn path=/branches/ntvdm/; revision=60256
 2013-09-21 00:18:59 +00:00
Aleksandar Andrejevic 1d3d2fc07a [SOFT386] 
Implement the RET instruction.


svn path=/branches/ntvdm/; revision=60229
 2013-09-19 23:24:05 +00:00
Aleksandar Andrejevic d3a6556ea5 [SOFT386] 
Implement JECXZ, LOOP, LOOPZ and LOOPNZ.


svn path=/branches/ntvdm/; revision=60226
 2013-09-19 22:48:45 +00:00
Aleksandar Andrejevic 3dc329ae81 [SOFT386] 
Implement the LEAVE instruction.


svn path=/branches/ntvdm/; revision=60201
 2013-09-18 21:13:40 +00:00
Hermès Bélusca-Maïto 9620dafb0c [SOFT386] 
Use SOFT386_EXCEPTIONS instead of INT for the ExceptionCode parameter in Soft386ExceptionWithErrorCode and Soft386Exception.

svn path=/branches/ntvdm/; revision=60196
 2013-09-17 23:17:50 +00:00
Aleksandar Andrejevic f9dd2776ab [SOFT386] 
Fix the ARPL instruction.
Use "inline" instead of FORCEINLINE for static functions.


svn path=/branches/ntvdm/; revision=60195
 2013-09-17 23:12:25 +00:00
Hermès Bélusca-Maïto 9e913c05f5 Fix a compilation error. 
svn path=/branches/ntvdm/; revision=60194
 2013-09-17 23:10:26 +00:00
Hermès Bélusca-Maïto 85f05060e4 [SOFT386] 
- Put inlined functions in a .inl file, which gets included by the corresponding header file (i.e. fix MSVC builds).
- Use enums types instead of "only" INTs...

svn path=/branches/ntvdm/; revision=60193
 2013-09-17 23:02:22 +00:00
Hermès Bélusca-Maïto c27ff5b52f [SOFT386] 
- Code formatting (align on 4-space)
- Fix union / struct problem in _SOFT386_PAGE_TABLE.

svn path=/branches/ntvdm/; revision=60189
 2013-09-17 21:47:38 +00:00
Hermès Bélusca-Maïto 7588e8cb68 Add a fictitious (commented) field to help the reader to know that indeed, the high bits are indeed reserved. 
svn path=/branches/ntvdm/; revision=60188
 2013-09-17 21:27:29 +00:00
Aleksandar Andrejevic 375bcfd674 [SOFT386] 
Fix hypothetical bug.


svn path=/branches/ntvdm/; revision=60187
 2013-09-17 21:15:52 +00:00
Aleksandar Andrejevic 593f4baf1a [SOFT386] 
Fix struct/union mixup.


svn path=/branches/ntvdm/; revision=60186
 2013-09-17 20:57:35 +00:00
Hermès Bélusca-Maïto 1baee6b6b5 [SOFT386]: Fix compilation with MSVC. 
svn path=/branches/ntvdm/; revision=60185
 2013-09-17 20:41:26 +00:00
Aleksandar Andrejevic bbb37c9152 [SOFT386] 
Implement Soft386OpcodeTestAl and Soft386OpcodeTestEax.
These functions were declared and referenced, but never defined.
Why the compiler allowed that without even a warning remains a mystery.


svn path=/branches/ntvdm/; revision=60183
 2013-09-17 20:28:26 +00:00
Aleksandar Andrejevic b78a6cb212 [SOFT386] 
Implement the direct relative near call (CALL rel16/32) instruction.


svn path=/branches/ntvdm/; revision=60147
 2013-09-15 18:26:25 +00:00