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2780 commits 1 branch 1 tag 100 MiB
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48 commits

Author SHA1 Message Date
Connor McLaughlin 042bdd9c0c CPU/CodeCache: Fetch second delay slot from first branch for double branches 2020-11-19 00:40:02 +10:00
Connor McLaughlin 077764ce18 CPU/Interpreter: Handle move instructions in PGXP memory mode 2020-11-14 23:20:28 +10:00
Connor McLaughlin 6cd991bc57 BIOS: Turn display on with fast boot 
Fixes black screen in SaGa Frontier with fast boot disabled.
 2020-11-11 01:02:40 +10:00
Connor McLaughlin 7566c45f64 CPU/Recompiler: Implement fastmem 2020-10-18 14:54:38 +10:00
Connor McLaughlin a6f8dde790 CPU/Recompiler: Faster ASM dispatcher 2020-10-18 14:54:38 +10:00
Connor McLaughlin cb351a7dbd CPU: Move interrupt check out of inner-most exec loop 2020-10-18 14:54:38 +10:00
Connor McLaughlin fa638ef9d2 CPU/Interpreter: Fix incorrect call in to PGXP for addi 
Fixes exploding triangles in Spyro with PGXP CPU mode enabled.
 2020-10-09 18:49:36 +10:00
Connor McLaughlin 27697d0508 System: Implement CPU overclocking [SAVEVERSION+] 
Partial credit to @CookiePLMonster as well.
 2020-09-30 23:48:34 +10:00
Connor McLaughlin 25f45fbd23 CPU: Add hack for stale icache reads in interpreter 2020-09-20 01:38:18 +10:00
Connor McLaughlin 9736dc7895 CPU: Fix InterpretUncachedBlock() 
But this shouldn't be hit during normal execution.
 2020-09-20 01:36:49 +10:00
Connor McLaughlin a2eaaf0e89 PGXP: Allocate large storage dynamically 
This causes performance issues on ARM otherwise.
 2020-09-03 00:11:40 +10:00
Connor McLaughlin 19d6037b99 CPU: Implement instruction cache simulation 
Implemented for all execution modes. Disabled by default in the cached
interpreter and recompiler, always enabled in the pure interpreter.
 2020-08-29 22:07:40 +10:00
Connor McLaughlin d37fba81ed CPU/Interpreter: Fix incorrect downcount comparison 2020-08-23 01:41:55 +10:00
Connor McLaughlin 6a17a558bb CPU: Linux compile fix 2020-08-20 01:05:03 +10:00
Connor McLaughlin daa72aba10 CPU: Skip executing nop instructions 
Makes PGXP CPU mode quicker, as well as a performance improvement to the
regular interpreter.
 2020-08-20 00:49:39 +10:00
Connor McLaughlin 2e9f656546 CPU: Implement PGXP CPU Mode 
This is *very* slow. You don't want to enable it if you don't need it.
It is also incompatible with the recompiler and will disable it if the
option is enabled.
 2020-08-20 00:49:39 +10:00
Connor McLaughlin 025e01ca47 CPU: Fix exceptions clobbering cop0.cause.Ip 
Fixes Gran Turismo 2 (PAL).
 2020-08-14 23:55:16 +10:00
Connor McLaughlin 1d5f810a4b CPU/Recompiler: Disable memory access exceptions by default 
This means it'll no longer pass amidog's CPU test in the default config.
But no games rely on this. You can enable it in advanced options if you
want to pass the CPU test.
 2020-08-08 23:44:13 +10:00
Connor McLaughlin f6e88353eb CPU/Recompiler: Make generated code invariant to virtual PC 2020-08-08 23:06:28 +10:00
Connor McLaughlin a2f271c505 CPU: Simplify some exception checks in cop0-3 2020-08-07 17:05:01 +10:00
Connor McLaughlin 0c1b637549 PGXP: Add initial implementation 2020-08-02 00:25:07 +10:00
Connor McLaughlin 2eb9384275 Replace more instances of fopen() with FileSystem::OpenFile() 2020-08-01 14:00:22 +10:00
Connor McLaughlin b6f871d2b9
JIT optimizations and refactoring (#675) 
* CPU/Recompiler: Use rel32 call where possible for no-args

* JitCodeBuffer: Support using preallocated buffer

* CPU/Recompiler/AArch64: Use bl instead of blr for short branches

* CPU/CodeCache: Allocate recompiler buffer in program space

This means we don't need 64-bit moves for every call out of the
recompiler.

* GTE: Don't store as u16 and load as u32

* CPU/Recompiler: Add methods to emit global load/stores

* GTE: Convert class to namespace

* CPU/Recompiler: Call GTE functions directly

* Settings: Turn into a global variable

* GPU: Replace local pointers with global

* InterruptController: Turn into a global pointer

* System: Replace local pointers with global

* Timers: Turn into a global instance

* DMA: Turn into a global instance

* SPU: Turn into a global instance

* CDROM: Turn into a global instance

* MDEC: Turn into a global instance

* Pad: Turn into a global instance

* SIO: Turn into a global instance

* CDROM: Move audio FIFO to the heap

* CPU/Recompiler: Drop ASMFunctions

No longer needed since we have code in the same 4GB window.

* CPUCodeCache: Turn class into namespace

* Bus: Local pointer -> global pointers

* CPU: Turn class into namespace

* Bus: Turn into namespace

* GTE: Store registers in CPU state struct

Allows relative addressing on ARM.

* CPU/Recompiler: Align code storage to page size

* CPU/Recompiler: Fix relative branches on A64

* HostInterface: Local references to global

* System: Turn into a namespace, move events out

* Add guard pages

* Android: Fix build
 2020-07-31 17:09:18 +10:00
Connor McLaughlin 2d74062abb CPU: Delay interrupts by one instruction/block 
Fixes Gameshark Sampler Disc.
 2020-07-03 01:51:08 +10:00
Connor McLaughlin a937a09b5c CPU: Fix broken exception logging from YBaseLib removal 2020-05-16 01:02:18 +10:00
Connor McLaughlin 71c1e243fe Remove YBaseLib dependency 2020-01-10 13:40:53 +10:00
Connor McLaughlin dbf651e493 CPU/Interpreter: Remove redundant comparison in divu instruction 2019-12-31 11:41:52 +10:00
Connor McLaughlin a6dab97928 CPU: Simplify GTE register addressing 2019-12-11 21:44:26 +10:00
Connor McLaughlin eeea5125f7 CPU: Use pending ticks as downcount comparison 
Saves a few cycles decrementing the downcount.
 2019-12-05 16:28:46 +10:00
Connor McLaughlin aec01d3890 Bus: Reduce RAM write delay 2019-11-27 00:01:47 +10:00
Connor McLaughlin 8c5fcc8f48 CPU: Fix more load delay slot issues 
Fixes Spyro again. b{ltz,gez}(al)? disabled in the recompiler until
issues are fixed.
 2019-11-24 01:11:51 +10:00
Connor McLaughlin 201be8aa9c CPU: Fix interpreter speed regression from recompiler 
Seems the logging prevented ExecuteInstruction() from being inlined.
 2019-11-23 19:49:44 +10:00
Connor McLaughlin 7b0978119b CPU: Only write exceptions to log when logging 2019-11-22 17:54:06 +10:00
Connor McLaughlin e5c0d28fdc CPU/Recompiler: Implement mfhi/mthi/mflo/mtlo 2019-11-22 10:53:54 +10:00
Connor McLaughlin 330d512831 CPU: Write exceptions to trace log 2019-11-22 10:53:15 +10:00
Connor McLaughlin 7aafaeacbc CPU/Recompiler: Implement lb/lbu/lh/lhu/lw/sb/sh/sw instructions 
Currently not passing CPU tests when combined with lwl/lwr.
 2019-11-21 23:34:04 +10:00
Connor McLaughlin 5217088d82 CPU: Refactor load delay handling 
Now works when mixing interpreter and recompiler code.
 2019-11-20 00:15:15 +10:00
Connor McLaughlin 1d6c4a3af1 CPU: Basic recompiler implementation for x64 (lui, ori, addiu) 
Disabled by default.
 2019-11-19 20:38:05 +10:00
Connor McLaughlin 19062e11b5 Revert "Bus: Relax memory timing" 
This reverts commit b5c799ba81.
 2019-11-17 22:11:16 +10:00
Connor McLaughlin b5c799ba81 Bus: Relax memory timing 
Formulas from Mednafen.
 2019-11-17 01:47:46 +10:00
Connor McLaughlin 6f4cf7d5e3 System: Support changing BIOS path 2019-11-11 19:43:39 +10:00
Connor McLaughlin 4a6f283484 CPU: Add trace log to file support 2019-11-04 00:55:07 +10:00
Connor McLaughlin a9e0fe6db2 cpu: Remove superfluous logging for syscall 2019-10-26 15:39:10 +10:00
Connor McLaughlin a76ec6fc19 Compile fixes for GCC 2019-10-22 23:07:51 +10:00
Connor McLaughlin b4a6c98bbe CPU: Move alignment check to branch instead of fetch 
There is no other way to end up with an unaligned PC.
 2019-10-13 18:35:21 +10:00
Connor McLaughlin 4422fb0545 CPU: Memory access timings 2019-10-04 20:30:54 +10:00
Connor McLaughlin 1aa846e0f8 CPU: Clean up exception disassembly dumping 2019-10-04 15:35:39 +10:00
Connor McLaughlin bddbab9d60 Rename to DuckStation 2019-10-04 13:54:09 +10:00
Renamed from src/pse/cpu_core.cpp (Browse further)