byuu says:
Changelog:
- gba/cpu: slight speedup to CPU::step()
- processor/arm7tdmi: fixed about ten bugs, ST018 and GBA games are
now playable once again
- processor/arm: removed core from codebase
- processor/v30mz: code cleanup (renamed functions; updated
instruction() for consistency with other cores)
It turns out on my much faster system, the new ARM7TDMI core is very
slightly slower than the old one (by about 2% or so FPS.) But the
CPU::step() improvement basically made it a wash.
So yeah, I'm in really serious trouble with how slow my GBA core is now.
Sigh.
As for higan/processor ... this concludes the first phase of major
cleanups and rewrites.
There will always be work to do, and I have two more phases in mind.
One is that a lot of the instruction disassemblers are very old. One
even uses sprintf still. I'd like to modernize them all. Also, the
ARM7TDMI core (and the ARM core before it) can't really disassemble
because the PC address used for instruction execution is not known prior
to calling instruction(), due to pipeline reload fetches that may occur
inside of said function. I had a nasty hack for debugging the new core,
but I'd like to come up with a clean way to allow tracing the new
ARM7TDMI core.
Another is that I'd still like to rename a lot of instruction function
names in various cores to be more descriptive. I really liked how the
LR35902 core came out there, and would like to get that level of detail
in with the other cores as well.
byuu says:
Changelog:
- fixed DAS instruction (Judgment Silversword score)
- fixed [VH]TMR_FREQ writes (Judgement Silversword audio after area 20)
- fixed initialization of SP (fixes seven games that were hanging on
startup)
- added SER_STATUS and SER_DATA stubs (fixes four games that were
hanging on startup)
- initialized IEEP data (fixes Super Robot Taisen Compact 2 series)
- note: you'll need to delete your internal.com in WonderSwan
(Color).sys folders
- fixed CMPS and SCAS termination condition (fixes serious bugs in four
games)
- set read/writeCompleted flags for EEPROM status (fixes Tetsujin 28
Gou)
- major code cleanups to SFC/R65816 and SFC/CPU
- mostly refactored disassembler to output strings instead of using
char* buffer
- unrolled all the subfolders on sfc/cpu to a single directory
- corrected casing for all of sfc/cpu and a large portion of
processor/r65816
I kind of went overboard on the code cleanup with this WIP. Hopefully
nothing broke. Any testing one can do with the SFC accuracy core would
be greatly appreciated.
There's still an absolutely huge amount of work left to go, but I do
want to eventually refresh the entire codebase to my current coding
style, which is extremely different from stuff that's been in higan
mostly untouched since ~2006 or so. It's dangerous and fickle work, but
if I don't do it, then the code will be a jumbled mess of several
different styles.
byuu says:
All 256 instructions implemented fully. Fixed a major bug with
instructions that both read and write to ModRM with displacement.
Riviera now runs into an infinite loop ... possibly crashed, possibly
waiting on interrupts or in to return something. Added a bunch of PPU
settings registers, but nothing's actually rendering with them yet.
Tim Allen