joevt
c9c4280e6e
ppcfpopcodes: No float cast for operand check.
2024-02-10 13:02:49 -07:00
joevt
dac9c1e52c
ppcfpopcodes: Fix fctiw* round to nearest.
...
0.3 should not round up to 1.
2024-02-10 12:58:58 -07:00
joevt
a7e6ab33a1
ppcfpopcodes: Make fctiw* results QNaN.
2024-02-10 12:58:29 -07:00
joevt
6c49b87a06
ppcopcodes: Fix rlwnm when shift > 31.
2024-02-10 12:54:41 -07:00
joevt
29e5bbdcc0
ppcopcodes: Fix divw.
2024-02-10 12:54:12 -07:00
joevt
4fcb357e2f
ppcfpopcodes: add 601 variant of mffs.
2024-02-10 12:51:48 -07:00
joevt
ddb5259464
ppcexec: Make illegal operations per CPU model.
2024-02-10 12:51:00 -07:00
dingusdev
52dfc0cf93
Slightly faster typecasting
2024-01-31 08:06:33 -07:00
joevt
bf425884fb
ppcopcodes: Add ppc_grab_dab.
...
For instructions that don't use the general purpose registers.
2024-01-19 12:09:24 +01:00
joevt
4430fd89a9
ppcopcodes: Fix subfic.
2024-01-19 12:00:55 +01:00
dingusdev
a0b1d6394a
Another revert
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This affects Virtus VR - With the lmw checks, the opening sign doesn't display and the intro crashes sooner
2024-01-07 17:45:05 -07:00
dingusdev
c6af1e31fe
Partial revert of previous commit
2024-01-07 17:21:11 -07:00
dingusdev
a5ce6a806f
CPU clean-up
2024-01-07 17:04:51 -07:00
dingusdev
a59475af1c
Further lha(*) fixes
2024-01-05 19:10:05 -07:00
dingusdev
1cc1ac2e68
Fixing lha(*) opcodes
2024-01-05 17:19:03 -07:00
dingusdev
924b80574a
Further fix from last commit
2024-01-05 15:53:56 -07:00
dingusdev
f3a759c80d
CPU code clean-up
2024-01-05 15:11:37 -07:00
Maxim Poliakovski
9b30dfb474
ppcfpopcodes: refactor fctiw/fctiwz emulation.
2024-01-03 01:27:21 +01:00
joevt
0100e67ebf
ppcfpopcodes: Fix fctiw/fctiwz.
2024-01-03 01:07:53 +01:00
joevt
bd419912b5
ppcfpopcodes: Fix stfs*.
...
It should try to convert its operand to a single precision
floating point number at least.
2024-01-02 21:53:03 +01:00
Maxim Poliakovski
cb85d358d1
Remove unused globals.
2024-01-02 17:51:12 +01:00
Maxim Poliakovski
5b114c2412
ppcopcodes: refactor mtcrf emulation.
2024-01-02 17:44:35 +01:00
Maxim Poliakovski
c25b027de4
ppcfpopcodes: fix mtfsf emulation.
2024-01-02 17:21:08 +01:00
Maxim Poliakovski
8595dd7d99
ppcfpopcodes: fix mtfsfi emulation.
2024-01-02 17:21:08 +01:00
joevt
61a90e2cfb
ppcfpopcodes: Fix mcrfs.
2024-01-02 15:52:30 +01:00
Maxim Poliakovski
593508df22
Refactor subfze.
2024-01-02 13:44:56 +01:00
joevt
1f3505f371
ppcopcodes: Fix subfze.
2024-01-02 13:44:13 +01:00
Maxim Poliakovski
fef5bde0c7
Refactor recent subfme fix.
2023-12-24 02:56:47 +01:00
joevt
dc00879419
ppcopcodes: Fix subfme.
2023-12-24 02:36:34 +01:00
joevt
bae488fd97
ppcfpopcodes: Fix lfs* opcodes.
2023-12-22 13:11:13 +01:00
joevt
0a8c1df968
ppcopcodes: Fix sraw.
2023-12-19 16:30:02 +01:00
joevt
4c49558120
ppcopcodes: Fix subfe.
2023-12-19 14:57:41 +01:00
Maxim Poliakovski
750f91e339
ppcemu.h: add enum for XER bits.
2023-12-19 14:57:41 +01:00
Maxim Poliakovski
d24b5d21b8
CRx_bit enum stores masks for now.
2023-12-19 14:27:57 +01:00
Maxim Poliakovski
9dbfde1a4c
Cleanup previous commit.
2023-12-19 13:15:10 +01:00
joevt
7f229b0fe8
ppcfpopcodes: Fix fcmpo/fcmpu.
...
It was always changing CR1 (starting at CR bit 4) instead of the CR selected by crfD.
Also, it was clearing all but the FL,FG,FE,FU bits of FPRF of FPSCR.
2023-12-19 13:15:10 +01:00
dingusdev
7cf3d9cd94
Merge pull request #72 from mihaip/upstream-ub
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Avoid some undefined behavior
2023-12-08 06:45:44 -07:00
joevt
c28e1fa0be
ppcmmu: Fix write accesses to read-only memory.
2023-12-08 11:15:04 +01:00
Mihai Parparita
e9bc8926ab
Avoid some undefined behavior
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The `SubOpcode31Grabber[1024] = { ppc_illegalop }` initializer only
populates the first entry with ppc_illegalop (at least on some compilers),
switch to explicitly initializing the entire array with std::fill_n.
Also fix a couple of sign and overflow issues flagged by the Xcode
undefined behavior sanitizer.
2023-12-07 23:59:49 -08:00
Maxim Poliakovski
99ae0c3d31
ppcemu.h: add PVR definition for MPC604e.
2023-12-03 20:05:19 +01:00
Mihai Parparita
6582536591
Inline ppc_set_cur_instruction
...
It's used in the main emulator loop (ppc_exec_inner), and the function
call overhead adds up.
By inlining it, time to boot to the Finder using a 7.1.2 install CD
and a 6100 ROM goes from ~6700ms to ~6400ms (with clang 14 on a
M2 Max)
2023-12-02 15:12:02 -08:00
Maxim Poliakovski
819d475181
poweropcodes: fix div emulation.
...
Clean up power_doz and power_maskir as well.
2023-12-01 20:41:22 +01:00
dingusdev
277be165b6
Merge pull request #67 from mihaip/upstream-power
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Fix emulation of doz, dozi, and nabs POWER instructions
2023-12-01 07:48:38 -07:00
Mihai Parparita
1b4de3b64e
Fix emulation of doz, dozi, and nabs POWER instructions
...
doz and dozi were storing the result into the wrong register.
nabs was not taking into account two's complement storage of numbers
and was just setting the signed bit.
These two instructions are used in the implementation of text
measurement in native QuickDraw on 7.1.2/the PDM ROM, and the incorrect
values were resulting in nothing being rendered. With the fix text
appears when booting from the 7.1.2 CD.
2023-12-01 01:34:12 -08:00
Maxim Poliakovski
a1d8f8aa4e
ppctests: fix test cases with SNaN/QNaN operands.
2023-11-30 17:44:46 +01:00
Maxim Poliakovski
8c3dfe94c7
ppcfpopcodes: infinities should set FPCC_FUNAN.
2023-11-30 12:53:10 +01:00
Maxim Poliakovski
0a9107b602
ppcfloattests.csv: remove unrelated CR7 changes.
2023-11-30 12:28:32 +01:00
Maxim Poliakovski
680cab52f3
ppcfpopcodes: fix ppc_fadds.
2023-11-30 12:06:44 +01:00
Maxim Poliakovski
6abb07e61b
Add rounding control for the host FPU.
2023-11-30 12:06:44 +01:00
Maxim Poliakovski
b59c2be12d
ppcfpopcodes: fix fpresult_update().
2023-11-30 12:06:44 +01:00
