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417 Commits

Author SHA1 Message Date
Maxim Poliakovski
c12bab9e27 Revert "Quick fix for creqv" 
This reverts commit 8efc61e1b9.
 2022-01-10 18:01:48 +01:00
Maxim Poliakovski
aefc66d118 Fix external exception processing. 2022-01-10 17:56:24 +01:00
Maxim Poliakovski
339db4a078 Add timers management. 2022-01-10 17:56:24 +01:00
dingusdev
8efc61e1b9 Quick fix for creqv 2022-01-08 15:22:27 -07:00
dingusdev
756d32df07
Further condition reg opcode patches 2022-01-07 20:40:07 -07:00
Maxim Poliakovski
9cd7ca0077 ppcopcodes: fix crxor. 2022-01-08 04:21:09 +01:00
Maxim Poliakovski
7bdad7703c Predict TBR values based on elapsed virtual time. 2021-12-20 00:12:44 +01:00
Maxim Poliakovski
087402290d Implement virtual time based on instruction counting. 2021-12-20 00:10:02 +01:00
Maxim Poliakovski
fd33c10712 ppcmmu.cpp: remove unused local variables. 2021-12-07 23:23:39 +01:00
dingusdev
c2a63bab09 FP Opcode Test Fixes 2021-10-30 16:43:13 -07:00
dingusdev
767735251b FP comp tests & various fixes 2021-10-24 14:00:35 -07:00
dingusdev
a28ef677fd Fixing FP mul ops & tests 2021-10-23 13:05:20 -07:00
Maxim Poliakovski
c0cd6eb38f Add missing licence headers, update license date. 2021-10-23 21:00:31 +02:00
Maxim Poliakovski
9329d56d83 Move devices into dedicated subdirectories. 2021-10-23 20:17:47 +02:00
dingusdev
7919cd0590
Merge pull request #21 from dingusdev/floating-point 
Floating point fixes. Rehauled floating-point emulation code. Fixed a test suite for floating points.
 2021-10-19 07:18:21 -07:00
dingusdev
fb277945c2 Floating point test fixes 2021-10-19 07:16:15 -07:00
Maxim Poliakovski
331b93d4d6 Fix compilation with Clang 11. 2021-10-17 23:41:53 +02:00
dingusdev
3c7fc58ac0 Small test case fixes for floating points 2021-10-16 22:33:56 -07:00
dingusdev
00dd99d851 Temporarily removing comparisons 
These seem to cause the test program to crash. Will reinstate once the cause of the crash is resolved.
 2021-10-15 20:02:00 -07:00
dingusdev
7d7a4b453f Partial test file reading fix 2021-10-15 06:28:11 -07:00
dingusdev
7ce94a6ab5 Further fixing the test code 2021-10-14 21:05:58 -07:00
dingusdev
061b061813 Floating point overhaul, part 4 
Reworked the INF/NAN checks again - This time, only checking them when the result is calculated
 2021-10-14 20:31:10 -07:00
dingusdev
9251745d6f Fixed floating-point test generation 2021-10-14 07:19:04 -07:00
Maxim Poliakovski
e53296f7a9 Implement all required context-synchronizing events. 2021-10-13 20:58:09 +02:00
Maxim Poliakovski
2a9d364b1b ppcmmu: implement separate TLB pointers for read/write. 2021-10-10 22:01:02 +02:00
Maxim Poliakovski
3eb2d3cba7 ppcmmu: verbose MMU state with mmu_print_regs(). 2021-10-10 22:01:02 +02:00
Maxim Poliakovski
bde5b71167 ppcmmu: re-arrange code to avoid formward declarations. 2021-10-10 22:01:02 +02:00
Maxim Poliakovski
bb0ca2ac40 ppcmmu: fix TLB flushing. 2021-10-10 22:01:02 +02:00
dingusdev
5672a154cb Floating-point refactor, part 3 
Condensed code to shorten enum names and remove casting.

Condensed mffs and partially fixed NAN checks for FADD(S).
 2021-10-10 07:48:49 -07:00
dingusdev
2d65ed47fc Floating point overhaul, part 2 
Further formatting fixes. Removed obsoleted separation definitions. Fixed rounding to nearest.
 2021-10-09 19:42:25 -07:00
dingusdev
e344b089b3 Floating point overhaul, part 1 
Cleaned up formatting and reworked the INF/NAN checks
 2021-10-09 15:08:53 -07:00
dingusdev
d5960ca70b Fixed warnings for frsqrte and fsqrts 2021-10-06 18:59:31 -07:00
dingusdev
2106c4ca47 Fixed floating-point opcode table issues 
fmuls, fmsubs, fmadds, fnmsubs, and fnmadds are all properly mapped now.
 2021-10-06 18:36:23 -07:00
dingusdev
ad6a2a9f17
Merge pull request #20 from dingusdev/floating-point 
Merging floating point branch
 2021-10-06 18:32:23 -07:00
dingusdev
1922a20cdd Partial revert for exception handling 
This will be for a future update regarding 601 instructions
 2021-10-05 17:42:55 -07:00
dingusdev
f605c484dd ecowx and eciwx added 2021-10-05 17:40:09 -07:00
Maxim Poliakovski
69c357b70f ppcopcodes: fix compilation error with Clang 11. 2021-10-05 00:40:12 +02:00
dingusdev
983e278498 Refactoring 601 opcode emulation - part 1 
All opcodes should be emulated now. There was also a significant amount of clean-up, particularly with lscbx and the bit rotation/shifting instructions.
 2021-10-01 22:37:28 -07:00
Maxim Poliakovski
b4d399ffa2 Improve three logging messages. 2021-09-30 23:01:56 +02:00
Maxim Poliakovski
22827642e4 ppcmmu: implement 601-style BAT. 2021-09-27 12:37:35 +02:00
Maxim Poliakovski
f104a634ea ppcmmu: some more cleanup. 2021-09-26 14:20:46 +02:00
Maxim Poliakovski
81ea96a058 ppcmmu.cpp: fix includes. 2021-09-25 23:38:27 +02:00
Maxim Poliakovski
e052eb4a87 Merge branch 'atirage-hacks'. 2021-09-25 23:16:38 +02:00
Maxim Poliakovski
212cd58f40 ppcmmu: refactor and clean up. 2021-09-25 19:13:40 +02:00
Maxim Poliakovski
5b54cd69ef ppcmmu: better fatal error handling with ABORT_F. 2021-09-25 19:13:40 +02:00
Maxim Poliakovski
501f24f0d3 ppcmmu: implement SoftTLB for instructions. 2021-09-25 19:13:40 +02:00
Maxim Poliakovski
2a79c9a63c ppcmmu.c: restructure and clean up. 2021-09-25 19:13:40 +02:00
Maxim Poliakovski
84e111290f Fix includes for loguru and SDL. 2021-09-16 00:46:38 +02:00
Maxim Poliakovski
9ce15be106 ppcmmu.c: restructure and clean up. 2021-08-22 21:33:59 +02:00
Maxim Poliakovski
a8f400287a Add TLB profiling. 2021-08-22 17:34:23 +02:00
Maxim Poliakovski
089645e830 Implement SoftTLB for writes. 2021-08-22 17:34:23 +02:00
Maxim Poliakovski
22a15f4780 ppcfpopcodes: fix mtfsb0 & mtfsb1 emulation. 2021-07-09 01:07:42 +02:00
dingusdev
48a65279e1 Fixed crf_d for mtfsb0 and mtfsb1 2021-07-07 18:58:02 -07:00
dingusdev
6abe86589b Update ppcfpopcodes.cpp 2021-07-07 08:00:37 -07:00
dingusdev
07a4166eef Preliminary work on floating point tests 2021-06-25 21:20:53 -07:00
Maxim Poliakovski
094d9a9c2f Remove inline to fix compiler warnings. 2021-06-21 00:11:14 +02:00
Maxim Poliakovski
4da95a66d7 Make emulated memory loads to use SoftTLB. 2021-06-20 22:33:10 +02:00
Maxim Poliakovski
7d8f4d4e61 Finalize SoftTLB for reads. 2021-05-16 22:00:00 +02:00
Maxim Poliakovski
a5ddb51a3b ppcmmu: initial TLB implementation for reads. 2021-05-16 00:53:15 +02:00
Maxim Poliakovski
6f9ee10de5 Rework PPC CPU profiler. 2021-04-29 02:26:17 +02:00
Maxim Poliakovski
0c1c59ffa7 ppcmmu: set type of the profiling variables to uint64_t. 2021-04-29 01:30:27 +02:00
Maxim Poliakovski
085877a8bf ppcmmu: add MMU profiling (disabled by default). 2021-04-18 20:49:58 +02:00
Maxim Poliakovski
bc59bf7c43 ppcmmu: replace macros with function templates. 2021-04-18 20:05:15 +02:00
Maxim Poliakovski
0375b6a687 ppcmmu: invert BAT mask to speed up match. 2021-04-11 02:03:20 +02:00
Maxim Poliakovski
d545780071 ppcmmu: fix calculation for BAT access_bits. 2021-04-10 23:51:00 +02:00
dingusdev
19ca37c4ba Started refactoring fctiw and fctiwz 2021-02-05 12:45:57 -07:00
dingusdev
ce70b0f096 Removed obseleted function declarations 2021-02-03 20:01:02 -07:00
Maxim Poliakovski
7628ec92c0 Rename memreadwrite.h to memaccess.h 2021-02-03 12:19:18 +01:00
dingusdev
7f0acaf3d3 Load and store instruction clean-up 2021-01-25 21:03:17 -07:00
Maxim Poliakovski
5961552ed9 ppcfpopcodes: fix register stores. 2021-01-25 17:19:32 +01:00
Maxim Poliakovski
2141a72b87 ppcfpopcodes: finish RFC of the loading helpers. 2021-01-25 02:27:58 +01:00
Maxim Poliakovski
9683c660bc ppcfpopcodes: RFC loading helpers, part 2. 
Fix lfdx emulation along the way.
 2021-01-25 01:30:19 +01:00
Maxim Poliakovski
d8397906c2 ppcfpopcodes: start refactoring of loading helpers. 2021-01-24 23:06:33 +01:00
Maxim Poliakovski
fd0f8e2ef5 ppcopcodes: revert inlining of helper functions. 2021-01-24 22:50:07 +01:00
dingusdev
60f84ef0d9 Refactoring interpreter value storage 2021-01-24 11:59:16 -07:00
dingusdev
593230f326 Disassembler - floating point instruction fixes 2021-01-23 22:44:14 -07:00
dingusdev
680b437b74 Fixed disassembly for fctiwz, frsp, and fctiw 2021-01-23 21:30:29 -07:00
Maxim Poliakovski
3189876d41 ppcfpopcodes: fix fmul emulation. 2021-01-24 04:53:19 +01:00
dingusdev
2539faef7e Small typo fixes 2021-01-23 15:10:08 -07:00
Maxim Poliakovski
42184213e9 ppcexec: fix RC flag for subgroup 63. 2021-01-23 03:21:50 +01:00
Maxim Poliakovski
bb3f4e596e ppcexec: fix subopcode 59 dispatching. 2021-01-23 03:12:39 +01:00
Maxim Poliakovski
014eefdf7e ppcdisasm: fix frsp and add tests for it. 2021-01-23 02:32:30 +01:00
Maxim Poliakovski
d8f7588693 debugger: some fixes and improvements. 2021-01-12 15:17:51 +01:00
dingusdev
2bac606365 Added to Heathrow 
Plus some debugging stuff to help figure out what register 0x34 is responsible for.
 2021-01-08 15:29:43 -07:00
dingusdev
df8ea1b276 Code clean-up for interpreter 2021-01-08 14:34:01 -07:00
Maxim Poliakovski
358f018815 ppcopcodes: fix mcrf. 2021-01-08 21:59:18 +01:00
dingusdev
79e3d398ba mcrf implemented 2021-01-07 20:38:32 -07:00
Maxim Poliakovski
2f3938c23f ppcopcodes: fix dcbz. 2021-01-07 04:25:27 +01:00
Maxim Poliakovski
dbbaf13a78 ppcopcodes: fix cntlzw to compile properly with Clang. 
Enable USE_GCC_BUILTINS by default.
 2020-12-18 18:33:00 +01:00
Maxim Poliakovski
99641b1b5e ppcopcodes: fix cntlzw with __builtin_clz. 
The result of __builtin_clz is undefined when the source operand
is zero. Add a check for this case and handle it accordingly.
 2020-12-07 14:37:20 +01:00
Maxim Poliakovski
6c6247b94f Clean up program exceptions. 2020-11-30 20:59:36 +01:00
Maxim Poliakovski
acfa09af65 Illegal opcodes raise program exception. 2020-11-29 23:54:10 +01:00
dingusdev
54fcfca8e9
Fixed floating point loading and storing instructions 2020-11-29 06:52:01 -07:00
Maxim Poliakovski
a775007d3a MMU: implement misaligned cross-page accesses. 2020-11-29 00:23:30 +01:00
dingusdev
0c202b0c2d Merging the 68k debugger from another branch 2020-11-26 20:00:08 -07:00
Maxim Poliakovski
b81de4af48 ppcexec: initialize interpreter lookup tables. 2020-11-14 03:05:41 +01:00
Maxim Poliakovski
2b19b0b237 ppcmmu: better initialization of last used entries. 2020-11-14 02:57:36 +01:00
dingusdev
1fe9ffe3e5 Further refactoring to clean up the interpreter 2020-10-17 21:46:38 -07:00
dingusdev
dc58386237 Started re-refactoring opcode retrieval 2020-10-17 14:30:37 -07:00
dingusdev
14ef7564cd CLI fixes - RAM and GFXMEM work better 2020-08-25 20:07:02 -07:00
Maxim Poliakovski
353035e9ca Prevent clobbering during debugging. 2020-07-20 23:02:07 +02:00
Maxim Poliakovski
b9dcfef551 debugger: debugging commands for 68k code. 2020-07-16 14:26:34 +02:00
Maxim Poliakovski
6b74e358dc WIP: basic 68k debugging environment. 2020-07-15 02:19:05 +02:00
Maxim Poliakovski
39a643aff6 Merge branch 'machines' 
Also disable SDL for now because it produces build errors.
 2020-06-03 18:21:51 +02:00
Maxim Poliakovski
2cd002cffa ppcexec: remove dead code. 2020-06-03 15:33:32 +02:00
Maxim Poliakovski
6ef0f0baae Fix CPU cycles counter to play nicely with setjmp. 
setjmp clobbers non-volatile local variables. bb_start_la is such
a local variable that is used for counting of virtual CPU cycles.
To make cycles counting work after setjmp, the global variable
glob_bb_start_la is used to preserve content of bb_start_la accross
interpreter pipeline.
 2020-06-03 15:21:19 +02:00
Maxim Poliakovski
d21fdb25d1 Remove unused variable grab_branch. 2020-06-01 23:12:18 +02:00
Maxim Poliakovski
f204caa907 ppcexec: new TBR/DEC updating code. 2020-06-01 00:46:00 +02:00
Waqar Ahmed
0ab9380be3 clang-format everything 2020-05-12 23:55:45 +05:00
Maxim Poliakovski
64d74228c2 ppcopcodes: fix STMW emulation. 2020-04-21 04:58:21 +02:00
Maxim Poliakovski
3d13bc1ca6 ppcopcodes: fix TWI emulation. 2020-04-21 04:58:21 +02:00
Maxim Poliakovski
695044cf0e Support more than one I/O region per device. 2020-03-31 18:48:04 +02:00
dingusdev
60ffa5bfac Initial attempt at fixing SDL2 building for Windows 2020-03-22 20:15:12 -07:00
Maxim Poliakovski
8e34c1657c Mock up DBDMA channel execution for sound. 2020-03-19 02:00:18 +01:00
Maxim Poliakovski
9be3250142 Fix MMU region bounds check. 2020-03-15 20:08:53 +01:00
Maxim Poliakovski
822f6cafd2 Create machine factory. 
It manages various hardware configurations referred to as machines.
 2020-03-13 23:09:36 +01:00
dingusdev
4ceed27ccf Simplified prog_counter back to pc 2020-03-05 07:48:10 -07:00
dingusdev
e31f7873f5 Fixed redunant variable names for PPC emulation. 2020-03-04 21:29:04 -07:00
Maxim Poliakovski
0eb557751b ppcopcodes: fix timebase read & write. 2020-03-02 00:01:18 +01:00
dingusdev
f5e8c9cbb8 Three tiny typos fixed 
All related to 4*cr1+lt
 2020-03-01 14:11:26 -07:00
dingusdev
31147aada3 Fixed most condition register issues with disassembler 2020-03-01 14:09:08 -07:00
dingusdev
81cabc5730 Fixed various bugs in the disassembler 2020-03-01 11:18:29 -07:00
Maxim Poliakovski
cbb46e8f30 More tests to reaveal wrong disassembly. 2020-03-01 18:21:57 +01:00
Maxim Poliakovski
7978d9d59f Fix SRR0 setting in exception handler. 2020-03-01 17:24:50 +01:00
dingusdev
055445e04a Merge branch 'master' of https://github.com/dingusdev/dingusppc 2020-02-28 09:04:30 -07:00
dingusdev
354409812e Updating files with proper licensing header 2020-02-28 09:04:28 -07:00
Maxim Poliakovski
e08bf39af3 debugger: more checks for user input. 2020-02-28 08:58:14 +01:00
dingusdev
5991ef1dca Merge branch 'ppc-fixes' 2020-02-27 21:03:40 -07:00
dingusdev
c8611dc293 Code cleanup + procedures for cleanup 2020-02-27 21:03:01 -07:00
Maxim Poliakovski
90779bd9c6 Remove log messages from cache/TLB instructions. 2020-02-27 16:31:22 +01:00
dingusdev
a3f55d35b4 Fixed most compiler warnings 2020-02-25 07:15:42 -07:00
dingusdev
6c1dc8aaf0 Further logging work 2020-02-24 19:50:52 -07:00
dingusdev
baef838f7c Further integration with loguru 2020-02-24 07:54:29 -07:00
dingusdev
d91950e582 Further logging code. 2020-02-23 22:36:31 -07:00
dingusdev
e9a616ffeb Started working on incorporating loguru 2020-02-23 20:59:10 -07:00
Maxim Poliakovski
461d859e73 ppcmmu: add debug memory reading function. 
This function saves and restores the MMU state
so no invalid user input can break CPU execution.
 2020-02-23 16:41:58 +01:00
Maxim Poliakovski
403c19ca39 Improve the command line debugger. 
Add next command. Make the debugger somewhat foolproof.
 2020-02-23 15:24:55 +01:00
dingusdev
02a75f78da regsfpsab fixed 2020-02-20 22:21:58 -07:00
dingusdev
d20122b3a9 Proper flag updates for fm arithmetic operations 2020-02-20 20:00:20 -07:00
dingusdev
6428f324f6 icbi fixed 2020-02-19 19:37:51 -07:00
dingusdev
d8f4a0c910 icbi fixed 2020-02-19 19:20:01 -07:00
dingusdev
9138b9bafc Quick fix for cmp 2020-02-19 19:12:23 -07:00
dingusdev
c71be1bc37 Fixed compare instructions 2020-02-19 19:03:39 -07:00
Maxim Poliakovski
5b2369458e ppcdisasm: remove unused function. 2020-02-20 02:35:38 +01:00
Maxim Poliakovski
8671517a08 ppcdisasm: new tests and fixes for rlwinm/rlwimi. 2020-02-20 02:27:48 +01:00
dingusdev
8babfa9987 Fixed some convoluted code for rlwinm 2020-02-17 20:17:56 -07:00
dingusdev
7a654fa576 Fixed rlwinm, rlwimi, and rlwnm mnemonics 2020-02-16 22:19:28 -07:00
dingusdev
3c06e8b30a Implemented fctiw(z)(.) 2020-02-16 13:40:55 -07:00
dingusdev
839c97b665 Small fix to the execution table 2020-02-16 08:57:23 -07:00
dingusdev
1f43b69878 Implemented the remaining recognized SPRs 2020-02-15 21:37:36 -07:00
dingusdev
87a4ff1b73 CMPW mnemonics added 2020-02-15 20:59:09 -07:00
dingusdev
d7e4f3a6a8 Small fixes to M(F/T)SPR and rotate instructions 2020-02-15 16:15:08 -07:00
dingusdev
bedbd54f5b Almost all major rotate op mnemonics added 2020-02-15 14:48:21 -07:00
dingusdev
158b0d2b50 Added major MTSPR/MFSPR mnemonics and MFTB mnemonics 2020-02-15 13:10:01 -07:00
dingusdev
6f6e5671d4 Fixed test cases for stfd(u) and sllq(.) 2020-02-15 12:09:27 -07:00
dingusdev
ef27fcec69 More tests, more fixes 
Only significant bugs left are with stfd(u) and sllq(.)
 2020-02-15 11:29:03 -07:00
dingusdev
4f02a98c2b More tests +fix for fsel 2020-02-14 07:58:30 -07:00
dingusdev
17e69677e8 One more fix for the segment reg instructions 2020-02-13 21:46:12 -07:00
dingusdev
07844c7388 One tiny fix to tlbie 2020-02-13 21:40:36 -07:00
dingusdev
73dfec443a Fixed cntlzw, mtsr(in), tlbie 2020-02-13 21:37:33 -07:00
dingusdev
3d89b0438a Many new test cases, many fixes 2020-02-13 21:04:14 -07:00
dingusdev
d4239c5aa1 Fixed comparison instructions, 603 instructions, mnemonics 2020-02-13 08:00:36 -07:00
dingusdev
eda9454f66 Fixed twi and tw; added more tests 2020-02-12 22:21:16 -07:00
dingusdev
40f399e0c4 Inserting missing instructions and fixing several opcodes 2020-02-12 22:08:40 -07:00
dingusdev
3d492b7f72 stwcx., slwi, and tw fixed 2020-02-12 20:58:51 -07:00
dingusdev
c8e03286e7 Condensed trap operations + added mnemonics for tw 2020-02-12 20:41:23 -07:00
dingusdev
c2eafcc45d Fixed shifting ops and eieio 2020-02-12 20:26:12 -07:00
Maxim Poliakovski
e4ee252b6c ppcdisasm: fix several instructions. 2020-02-13 04:13:26 +01:00
dingusdev
11b1623a69 All remaining 601 opcodes implemented 
Plus adjustments to twi, bclr, and bcctr.
 2020-02-12 19:31:54 -07:00
Maxim Poliakovski
1543acc696 ppcdisasm: fix bcctr and bclr instructions. 2020-02-13 03:16:47 +01:00
Maxim Poliakovski
4ecc48a6cc ppcdisasm: fix string buffer overflow in VS19. 2020-02-13 00:05:10 +01:00
Maxim Poliakovski
24652de392 Integrate disassembler tests. 2020-02-12 22:58:24 +01:00
dingusdev
513658b45f Quick fix to ori 2020-02-10 20:03:14 -07:00
dingusdev
30b1116393 Implemeted limited simplified mnemonics for rlwinm 2020-02-10 20:02:41 -07:00
Maxim Poliakovski
a934ed5bde ppcdisasm: fix Clang errors and warnings. 2020-02-10 20:01:02 -07:00
dingusdev
ad0659a702 Started bugfixing and refactoring 2020-02-10 20:00:49 -07:00
dingusdev
6473ea1a26 Added the last few opcodes 2020-02-10 20:00:28 -07:00
dingusdev
d277ab693e Implemented most remaining opcodes 2020-02-10 20:00:12 -07:00
dingusdev
cee51b643e Merging in 2020-02-10 19:59:02 -07:00
Maxim Poliakovski
c25aedac4b Fix some MSVC errors and warnings. 
"This commit fixes as much as required to compile the project
in a cross-platform fashion. Some MSV-specific warnings are
simply ignored for now." -max
 2020-02-10 19:58:41 -07:00
Maxim Poliakovski
4b0c607ea3 Bring back strcpy/strcat 2020-02-10 19:55:23 -07:00
dingusdev
1e93414f11 Further bugfixes 2020-02-10 19:52:09 -07:00
dingusdev
f3befe9c16 Support for floating-point loads and stores 2020-02-10 19:50:38 -07:00
dingusdev
96e9351190 Support for floating-point loads and stores 2020-02-10 19:47:51 -07:00
dingusdev
254b9d3b55 Update ppcdisasm.cpp 2020-02-10 19:44:54 -07:00
dingusdev
82b4f5717e Update ppcdisasm.cpp 2020-02-10 19:40:45 -07:00
Maxim Poliakovski
99559c1e0c Merging in odd commits 2020-02-10 19:37:50 -07:00
dingusdev
b16427e810 Further disassembler work 2020-02-10 19:33:14 -07:00
Maxim Poliakovski
825da69a10 debugger: disassembler integration. 2020-02-10 19:31:57 -07:00
Maxim Poliakovski
26bd402f44 ppcopcodes: optimize ppc_changecrf0() a bit. 2020-02-10 23:07:39 +01:00
Maxim Poliakovski
36fc7a9aaa Add XER[OV] clear tests. 2020-02-10 19:34:03 +01:00
Maxim Poliakovski
d0f1a34c02 Fix integer multiplications. 
Add a couple of tests for verifying XER[OV] updating code
for mullwo[.].
 2020-02-10 18:36:28 +01:00
Maxim Poliakovski
a72e2fd67d Simplify unsigned integer divisions. 2020-02-10 17:16:18 +01:00
Maxim Poliakovski
d4a2f400b5 Fix divw[.] and divwo[.] emulation. 
Also adds a couple of tests for undocumented
CPU behaviour. Remove superfluous "sidiv".
 2020-02-10 16:07:11 +01:00
dingusdev
a4d815344a Patched up DIVW(U)O(.) 2020-02-09 13:59:30 -07:00
Maxim Poliakovski
b057a8373d Simplify SUBF and remove not_this. 2020-02-09 08:05:20 +01:00
Maxim Poliakovski
32e64fc1b2 Make XER update code inline & private. 2020-02-09 08:01:26 +01:00
Maxim Poliakovski
49002860ed Fix carry update for subfc(.) and subfco(.). 2020-02-09 07:41:03 +01:00
dingusdev
6f16ba8c57 Fixed SUBFME(O)(.) 2020-02-08 22:06:01 -07:00
dingusdev
051edd5e38 Subtraction operation fixes in progress 2020-02-08 20:35:11 -07:00