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66 Commits

Author SHA1 Message Date
Connor McLaughlin
22fdd80cc3 CPU/Interpreter: Out of range cop0 reads should be nops 2021-04-14 19:06:52 +10:00
Connor McLaughlin
dd5277321b CPU/CachedInterpreter: Fix infinite loop when block compile fails 2021-04-14 19:06:52 +10:00
Connor McLaughlin
e087e6f3a2 CPU/Recompiler: Prevent using fastmem when cache is isolated 
No point even trying since it's just going to fault.
 2021-04-12 02:08:56 +10:00
Connor McLaughlin
922d320523 CPU/Recompiler: Reserve whole fastmem region to avoid clashes 2021-04-11 12:42:51 +10:00
Connor McLaughlin
209827b67c PGXP: Compute PSX values on demand for CPU instructions 
Generates shorter code for the recompiler.
 2021-02-18 02:08:48 +10:00
Connor McLaughlin
1b881fc60b PGXP: Combine instr and rtVal parameters for CPU_LUI 2021-02-18 02:08:47 +10:00
Connor McLaughlin
0bfa1bf873 PGXP: Fix MFC0/MTC0 
Doubt it'll change anything.
 2021-02-18 02:08:47 +10:00
Connor McLaughlin
a722fd6b53 PGXP: Make mult/div compute results instead of parameters 
Lets us call it from the recompiler.
 2021-02-18 02:08:47 +10:00
Connor McLaughlin
33a5617ea3 PGXP: Remove some unused parameter from M{F,T}{HI,LO} 2021-02-18 02:08:47 +10:00
Connor McLaughlin
efecb44344 PGXP: Combine a couple of instructions 2021-02-18 02:08:47 +10:00
Connor McLaughlin
9d80c48d6f CPU: Fix icache missing from save state 2021-01-31 16:39:51 +10:00
Connor McLaughlin
e3262fc0a4 CPU: Compile fix for debug builds 2021-01-05 00:46:41 +10:00
Connor McLaughlin
9ff8130e40 fixup! CPU: Make trace-to-file toggleable at runtime and in release builds 2021-01-04 03:11:14 +10:00
Connor McLaughlin
bf1d51b5d8 CPU: Make trace-to-file toggleable at runtime and in release builds 2021-01-04 03:11:14 +10:00
Connor McLaughlin
c9240eea72 CPU/Recompiler: Use PGXP interpreter for fallback 
Fixes holes in geometry with PGXP enabled in Threads of Fate.
 2021-01-01 17:16:55 +10:00
Connor McLaughlin
3b23542ec9 CPU: Provide debugger/breakpoint/step functionality 2020-12-17 11:57:47 +10:00
Connor McLaughlin
bf2e38aed5 CPU/Recompiler: Implement LUT-based fastmem 2020-11-24 14:49:21 +10:00
Connor McLaughlin
a03bca2f72 CPU: Make fastmem a compile-time feature (support 32-bit targets) 2020-11-21 18:39:03 +10:00
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