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453 Commits

Author SHA1 Message Date
Maxim Poliakovski
b51670cb25 ppcfpopcodes: improve mffs, mtfsb0 and mtfsb1. 2023-11-30 12:06:44 +01:00
Maxim Poliakovski
487c6c2c7c ppcfpopcodes: remove dead code. 2023-11-30 12:06:44 +01:00
dingusdev
87b8a8e0a0 Correcting multiply tests 2023-11-28 19:02:48 -07:00
Maxim Poliakovski
47e0c23e64 Fix CR1 updates for floating-point instructions. 2023-11-28 16:31:51 +01:00
dingusdev
dd454689e0 Fixes for condition reg move instructions 2023-11-28 07:06:04 -07:00
dingusdev
4753ba5361 Continued clean-up 2023-11-23 16:56:58 -07:00
dingusdev
7835aec034 Further CPU cleanup 2023-11-21 08:06:50 -07:00
dingusdev
f4f035682c Fixed cfloat include 2023-11-19 20:34:40 -07:00
dingusdev
d1f9b5631a Added missing include for cfloat 2023-11-19 20:07:00 -07:00
dingusdev
d92ae6136a CPU code clean-up in progress 
Happened to fix one case in the process.
 2023-11-19 17:56:30 -07:00
dingusdev
074a760b6a FP compare fixes 
This is the start of several fixes for the floating point emulation.
 2023-11-13 07:30:31 -07:00
Mihai Parparita
35c86ad6bf Clean up #includes 
Result of running IWYU (https://include-what-you-use.org/) and
applying most of the suggestions about unncessary includes and
forward declarations.

Was motivated by observing that <thread> was being included in
ppcopcodes.cpp even though it was unused (found while researching
the use of threads), but seems generally good to help with build
times and correctness.
 2023-11-03 00:33:47 -07:00
dingusdev
6ffc2b2f10 Optimize string word instructions 
Partially unrolled the loop. Boots 7.1.2 Disk Tools slightly faster.
 2023-10-29 17:23:31 -07:00
joevt
5b366e592c Fix spelling. 2023-10-02 15:06:51 +02:00
joevt
170a9d78e7 Fix comment. 2023-10-02 15:06:06 +02:00
Maxim Poliakovski
a5fb124e69 pdmonboard: switch to mmu_map_dma_mem. 2023-10-02 15:00:12 +02:00
Maxim Poliakovski
8cf290c034 ppcmmu: add mmu_map_dma_mem method. 2023-10-02 02:20:42 +02:00
joevt
67146028bf ppcmmu: Add 64-bit accesses to I/O. 
Also add an exception for unaligned 64 bit. 64 bit accesses require dword alignment.
 2023-09-30 00:29:01 +02:00
joevt
acdb14a10a Recalculate execution block after RFI. 
While booting Mac OS X 10.2 installer CD, a return from RFI didn't change the instruction address virtual memory page but did change the physical memory page so we must always recalculate the physical address after RFI.
Perhaps there are other cases where this may be required?
 2023-09-26 00:13:11 +02:00
joevt
dcd4384d46 Fix eb_end calculation. 
- Subtract one so that it can't overflow to zero.
- Use page_start as the base so mask operation is not required.
- Recalculate it only when the page changes.
 2023-09-26 00:04:07 +02:00
joevt
8348370142 Add separate flags for instruction and data TLBs. 
The same flag was being used for flushing both instruction and data TLBs so sometimes a flush for one TLB list would not occur if the flag was cleared when flushing the other TLB list.
 2023-09-25 23:42:32 +02:00
joevt
6b3cdad877 ppcmmu: Fix BAT update. 
Need to schedule flush of both BAT and PAT type TLBs because BAT takes precedence over PAT which means updating a BAT can invalidate a PAT.
 2023-09-25 23:27:00 +02:00
joevt
6b40caf63a ppcmmu: fix setting of LRU bits. 2023-09-25 23:17:57 +02:00
Maxim Poliakovski
6cfde29f00 heathrow: implement native interrupt mode. 2023-09-25 12:22:17 +02:00
Maxim Poliakovski
278799795c Disable decrementer exceptions for MPC601. 2023-09-18 21:20:59 +02:00
Maxim Poliakovski
c47cbb354d Add is_601 flag for selecting MPC601 specific behavior. 2023-09-18 21:20:59 +02:00
Maxim Poliakovski
8ff2125312 Revert "Minor checks for Data Cache opcodes and LMW" 
This reverts commit fd6327ab62.
 2023-09-18 21:20:59 +02:00
Maxim Poliakovski
a69763c6de dbdma: noop incomplete LOAD_QUAD & STORE_QUAD. 2023-09-18 20:20:25 +02:00
dingusdev
5e32b599d6 Merge branch 'master' of https://github.com/dingusdev/dingusppc 2023-09-04 07:22:27 -07:00
dingusdev
fd6327ab62 Minor checks for Data Cache opcodes and LMW 2023-09-04 07:21:00 -07:00
Maxim Poliakovski
45528bfc6d ppcmmu: fix flushing of the secondary ITLB. 2023-08-22 23:36:48 +02:00
Maxim Poliakovski
932f2bbceb ppcopcodes: fix stwcx. emulation. 2023-08-21 04:50:02 +02:00
dingusdev
a7ef177164 Preliminary DBDMA expansion 2023-08-13 16:38:15 -07:00
joevt
300965ab10 Decrementer exception changes. 2023-08-10 00:46:04 +02:00
Maxim Poliakovski
d2e7c9a5df ppcexceptions: fix next address for decrementer exceptions. 2023-08-09 12:53:48 +02:00
Maxim Poliakovski
de1f0c8a9b ppc_mmu: rename reg_desc to rgn_desc to improve readability. 2023-08-07 13:56:49 +02:00
Maxim Poliakovski
52a64168d7 Clean up previous merge. 2023-08-07 13:45:26 +02:00
Maxim Poliakovski
b571ff8412 Revert "ppcmmu: Add 64-bit accesses to I/O" 
This reverts commit 16123dea45.
 2023-08-07 13:06:11 +02:00
joevt
ac64f9e30d ppcmmu: Fix mmio read/write offset calculation. 
For TLBs referencing an mmio region, calculate an offset that will translate a guest virtual address to an offset in the mmio region.
 2023-08-04 20:16:13 -07:00
joevt
16123dea45 ppcmmu: Add 64-bit accesses to I/O 
Also add an exception for unaligned 64 bit. 64 bit accesses require dword alignment.
 2023-08-04 20:16:13 -07:00
joevt
814260f0b6 ppcmmu: Reduce unmapped physical memory logging. 
Don't log consecutive accesses to unmapped physical memory addresses. This saves a couple hundred thousand lines in the log in some cases.
This is only a partial fix. Any access that isn't logged should be queued and output if a log message is output that is not this log message or after a time period.
 2023-08-04 20:16:13 -07:00
Maxim Poliakovski
25150268cd ppcexceptions: fix ISI exception target address. 2023-07-10 14:06:20 +02:00
dingusdev
4364c89fd4 Slight clean-up for execution type 2023-06-19 22:36:27 -07:00
Maxim Poliakovski
73d0356058 ppcopcodes: fix dcbz for BlockZero in Mac OS 8.x 2023-06-17 20:57:48 +02:00
Maxim Poliakovski
03595c3940 Merge remote-tracking branch 'origin/machine-yosemite' 2023-04-21 12:49:58 +02:00
Maxim Poliakovski
cf0d361918 Merge 'hard-disks' branch. 2023-04-17 01:20:38 +02:00
Maxim Poliakovski
597c077b19 Implement PPC decrementer. 2023-02-15 02:36:40 +01:00
Maxim Poliakovski
9fcf5ba51a ppcmmu: fix bug in mmu_change_mode(). 2023-02-15 02:18:31 +01:00
joevt
19adb54cd8 Fix compiler warnings. 
These were detected by github Actions but not by Xcode.
 2023-01-11 01:17:13 -08:00
joevt
5294a8b71c Fix compiler warnings: unused variables. 2023-01-11 01:17:12 -08:00
joevt
46bc8567e9 Fix compiler warnings: uninitialized variables. 
- mpc601_block_address_translation will now return 0 for prot and pa when bat_hit is false (when the if statement is not positive during the for loop). The calling function doesn't care what prot and pa are when bat_hit is false, but we do this to remove the compiler warining.
- For tlb_flush_entry, the compiler thinks m might not always be in the range 0 to 5 so tlb1 and tlb2 might not get initialized by the switch statement. Add default to get around this warning.
 2023-01-11 01:17:12 -08:00
joevt
64fec88436 Fix compiler warnings: cast loses precision. 
Use explicit cast when converting large integer types to smaller integer types when it is known that the most significant bytes are not required.
For pcidevice, check the ROM file size before casting to int. We'll allow expansion ROM sizes up to 4MB but usually they are 64K, sometimes 128K, rarely 256K.
for machinefactory, change the type to size_t so that it can correctly get the size of files that are larger than 4GB; it already checks the file size is 4MB before we need to cast to uint32_t.
For floppyimg, check the image size before casting to int. For raw images, only allow files up to 2MB. For DiskCopy42 images, it already checks the file size, so do the cast after that.
 2023-01-11 01:17:12 -08:00
Maxim Poliakovski
7ba8921649 ppcemu: add PVR for 603ev. 2022-12-23 17:19:46 +01:00
Maxim Poliakovski
648dfcd47b ppcmmu: fix BAT state updates. 2022-12-20 14:58:45 +01:00
Maxim Poliakovski
9f4c248e4c Rework DBDMA logic for bidirectional channels. 2022-11-17 18:03:18 +01:00
dingusdev
a58ce8aeb3 Slight tweak to lscbx 2022-11-15 08:01:57 -07:00
dingusdev
8f99510af0 Fixed lscbx 2022-11-15 07:40:37 -07:00
dingusdev
647ae456e5 Slight typo squash for lscbx 2022-11-12 20:18:33 -07:00
dingusdev
1b7ff084ab Cleaned lscbx 2022-11-12 20:17:04 -07:00
dingusdev
1ed6e25d1b Removed redundant variable 
Slight clean-up for lswi and lswx
 2022-11-12 20:16:29 -07:00
joevt
6f0d3b48ba Fix TBR range 
Fixed an issue where TBR doesn't have full 64-bit range. The original calculation was 64 bit and ended with a ÷ 10^9. This means the max for the upper 32 bits is 2^32/10^9 = 4. The solution is to use a multiplication method that supports a 96 bit product. core/mathutils.h contains functions for that. TBR driving frequency is assumed to be less than 1 GHz. Some minor modification is required for future > 1 GHz support.
 2022-09-15 21:22:37 -07:00
joevt
b665f2cb4e Fix RTC units 
Fixed an issue where get-msecs-601 and get-msecs-60x were not returning the same value. RTC was being calculated using timebase frequency instead of nanosecond frequency. 601 uses RTC. 60x uses TBR. On a real Mac, a G3 CPU won't have a RTC and accessing RTC would cause an exception. This is not the case for dingusppc but I don't think that's a problem.
 2022-09-15 21:05:08 -07:00
joevt
ed424ad544 Fix setting RTC 
Fixed an issue where setting RTC upper or lower doesn't adjust the other (since the current time has changed since the last timestamp).
 2022-09-15 20:59:56 -07:00
joevt
50dbd5eccd Fix RTC not always updating 
Fixed an issue where RTC was not being updated if only the upper 32 bits (seconds) was read.
Also simplified things by always updating the timestamp instead of only when the seconds changes.
 2022-09-15 20:54:22 -07:00
joevt
01d7d6bac3 Make accessing RTC or TBR not affect the other 
Fixed an issue where the following would cause inconsistent results (tb in the left column would sometimes decrement instead of always incrementing):
2 0 do 2 0 do cr tb@ 8 u.r ." ." 8 u.r loop 2 0 do cr 12 spaces rtc@ 8 u.r ." ." 8 u.r loop 2 0 do cr tb@ 8 u.r ." ." 8 u.r space rtc@ 8 u.r ." ." 8 u.r loop loop

RTC and TBR could not be used simultaneously because they are both incremented by an amount based on the last time stamp but that time stamp can be changed by accessing either RTC or TBR. The solution is to have a different time stamp for each.
 2022-09-15 20:21:54 -07:00
joevt
ce925f5e56 Fix RTC upper 
Fixed a typo that caused rtc@ to always return 0 for the upper 32 bits (represents seconds).
The problem could cause the following to hang on Power Mac 7500:
cr 2000 0 do get-msecs u. 1 ms loop
 2022-09-15 19:34:46 -07:00
Maxim Poliakovski
b38d00ce2d cpu/ppc: improve support for external interrupts. 
Support generating of external interrupt exception
in MTMSR and RFI when MSR[EE] is re-enabled and
external interrupt still pending.
 2022-08-24 14:15:47 +02:00
Maxim Poliakovski
8c0f391548 ppcemu: add enums for HID0 and HID1. 2022-08-15 14:45:55 +02:00
joevt
b76bfedf4b Remove unnecessary linefeeds from log 
To remove blank lines in the dingusppc.log file or in the console output when -d is used.
 2022-08-14 05:26:56 -07:00
Maxim Poliakovski
0c77cccb9e ppcopcodes: fix mcrf (again). 2022-05-21 14:51:28 +02:00
Maxim Poliakovski
b47de8b042 Implement MPC601 style RTC. 2022-05-21 14:51:27 +02:00
Maxim Poliakovski
d83fdd8866 ppcexec: remove old code. 2022-03-02 17:02:32 +01:00
Maxim Poliakovski
646880cbf2 Interpreter loop is now controlled by exec_flags. 2022-03-02 16:55:20 +01:00
Maxim Poliakovski
f1ed56ae9a debugger: a couple of cosmetic improvements. 2022-02-26 10:57:13 +01:00
Maxim Poliakovski
123f820775 ppcopcodes: fix lswi/stswi emulation. 2022-02-19 23:23:24 +01:00
Maxim Poliakovski
477ad7ddee ppcopcodes: fix lswx/stswx emulation. 2022-02-19 23:23:24 +01:00
Maxim Poliakovski
b39e884d61 ppcfpopcodes: add missing std:: prefixes. 2022-02-17 00:20:18 +01:00
Maxim Poliakovski
de65196c4f ppcfpopcodes: remove unused template parameters. 2022-02-17 00:11:14 +01:00
Maxim Poliakovski
8f528184b8 Fix compilation with gcc, part 1. 2022-02-16 23:52:43 +01:00
Maxim Poliakovski
25a4fd1107 Allow adding timers from timer callbacks. 2022-02-05 17:10:57 +01:00
dingusdev
3258abe190 crnand and crnor fixes 2022-01-22 22:33:13 -07:00
Maxim Poliakovski
c8d39d5ee5 ppcopcodes: fix creqv emulation. 2022-01-21 16:32:07 +01:00
Maxim Poliakovski
2442bd17b3 ppcopcodes: fix crand emulation. 2022-01-21 14:56:10 +01:00
Maxim Poliakovski
c864b9b7d9 ppcopcodes: fix cror emulation. 2022-01-21 14:37:51 +01:00
Maxim Poliakovski
d8c3cfc38e Fix next instruction address after external exceptions. 2022-01-20 01:38:41 +01:00
Maxim Poliakovski
e1e651966e Revert "Further condition reg opcode patches" 
This reverts commit 756d32df07.
 2022-01-10 18:10:39 +01:00
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