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64 commits

Author SHA1 Message Date
Aleksandar Andrejevic 20486fd1b7 [SOFT386] 
Clear the memory block before it's used.


svn path=/branches/ntvdm/; revision=60612
 2013-10-11 16:31:35 +00:00
Aleksandar Andrejevic b22da55f8f [SOFT386] 
Implement the REP prefix for the INS instruction.


svn path=/branches/ntvdm/; revision=60600
 2013-10-10 19:01:41 +00:00
Aleksandar Andrejevic 182d7c8725 [SOFT386] 
Fix more prefix handling code.
Implement the XLAT instruction.


svn path=/branches/ntvdm/; revision=60586
 2013-10-09 00:36:37 +00:00
Aleksandar Andrejevic 9339e12e69 [SOFT386] 
Fix prefix handling.


svn path=/branches/ntvdm/; revision=60585
 2013-10-08 23:03:56 +00:00
Aleksandar Andrejevic 7078f183fb [SOFT386] 
Fix a bug in the CMP instruction.
Implement the SBB instruction.


svn path=/branches/ntvdm/; revision=60584
 2013-10-08 22:27:48 +00:00
Aleksandar Andrejevic f10f82d938 [SOFT386] 
Start implementing extended opcodes.


svn path=/branches/ntvdm/; revision=60562
 2013-10-06 15:22:52 +00:00
Aleksandar Andrejevic 15a8cc4515 [SOFT386] 
Set the opcode handler for the INS and OUTS instructions to be
Soft386OpcodeIns and Soft386OpcodeOuts, respectively.


svn path=/branches/ntvdm/; revision=60543
 2013-10-05 20:12:08 +00:00
Aleksandar Andrejevic fbcc4ad158 [SOFT386] 
Halfplement INS and OUTS.


svn path=/branches/ntvdm/; revision=60540
 2013-10-05 20:06:19 +00:00
Aleksandar Andrejevic 3593b8c8ef [SOFT386] 
Fix bugs in STOS and LODS (only one register is incremented).
Implement CMPS and SCAS.


svn path=/branches/ntvdm/; revision=60525
 2013-10-04 19:51:11 +00:00
Aleksandar Andrejevic c190ca817c [SOFT386] 
Halfplement MOVS, STOS and LODS.
Stubplement CMPS and SCAS.


svn path=/branches/ntvdm/; revision=60515
 2013-10-03 20:56:36 +00:00
Aleksandar Andrejevic c2e98bca7f [SOFT386] 
Implement the (undocumented) opcode SALC.


svn path=/branches/ntvdm/; revision=60492
 2013-10-01 15:02:07 +00:00
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 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 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 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 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
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 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
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
Aleksandar Andrejevic 429d182d64 [SOFT386] 
Implement JMP rel16/32


svn path=/branches/ntvdm/; revision=60146
 2013-09-15 18:18:58 +00:00
Aleksandar Andrejevic 99dd92ffa0 [SOFT386] 
Implement LAHF, SAHF, LEA and PUSH imm16/32


svn path=/branches/ntvdm/; revision=60144
 2013-09-15 18:02:41 +00:00
Aleksandar Andrejevic e1e34dc171 [SOFT386] 
Implement MOV (mod-reg-r/m).


svn path=/branches/ntvdm/; revision=60136
 2013-09-15 15:30:55 +00:00
Aleksandar Andrejevic a8c1104f57 [SOFT386] 
Implement ARPL.


svn path=/branches/ntvdm/; revision=60050
 2013-09-12 00:05:23 +00:00
Aleksandar Andrejevic 76b87315a8 [SOFT386] 
Implement PUSHA and POPA.


svn path=/branches/ntvdm/; revision=60049
 2013-09-11 23:31:35 +00:00
Aleksandar Andrejevic f092154985 [SOFT386] 
Implement many instructions (including ADC, SUB, CDQ, CWDE, ...), and "stubplement" even more of them.


svn path=/branches/ntvdm/; revision=60011
 2013-09-10 20:41:43 +00:00
Aleksandar Andrejevic 333e29b35d [SOFT386] 
Add the instructions implemented in the previous commit to the opcode table.


svn path=/branches/ntvdm/; revision=59995
 2013-09-05 23:50:42 +00:00
Aleksandar Andrejevic ddcbb9ee92 [SOFT386] 
Implement the TEST instruction, and the XCHG instruction which uses MOD-REG-R/M for operands.


svn path=/branches/ntvdm/; revision=59994
 2013-09-05 23:48:07 +00:00
Aleksandar Andrejevic f0040c12e8 [SOFT386] 
Implement the OR, AND and XOR instructions.


svn path=/branches/ntvdm/; revision=59991
 2013-09-04 18:28:58 +00:00
Aleksandar Andrejevic 9fd42c0f7d [SOFT386] 
Fix a typo.
Use a macro (SOFT386_OPCODE_HANDLER) for function definitions of opcode handlers.
Implement the rest of the ADD opcodes.


svn path=/branches/ntvdm/; revision=59990
 2013-09-04 16:36:39 +00:00
Aleksandar Andrejevic 5f874178e7 [SOFT386] 
Implement helper functions for reading/writing operands of instructions that use
the MOD-REG-R/M byte.
Implement the MOD-REG-R/M ADD instruction for bytes.


svn path=/branches/ntvdm/; revision=59981
 2013-09-04 01:11:12 +00:00
Aleksandar Andrejevic b61bbb9d66 [SOFT386] 
Implement the "MOV reg8, imm8" instruction.


svn path=/branches/ntvdm/; revision=59952
 2013-09-01 17:54:51 +00:00