byuu says:
Changelog:
- GB core code cleanup completed
- GBA core code cleanup completed
- some more cleanup on missed processor/arm functions/variables
- fixed FC loading icarus bug
- "Load ROM File" icarus functionality restored
- minor code unification efforts all around (not perfect yet)
- MMIO->IO
- mmio.cpp->io.cpp
- read,write->readIO,writeIO
It's been a very long work in progress ... starting all the way back with
v094r09, but the major part of the higan code cleanup is now completed! Of
course, it's very important to note that this is only for the basic style:
- under_score functions and variables are now camelCase
- return-type function-name() are now auto function-name() -> return-type
- Natural<T>/Integer<T> replace (u)intT_n types where possible
- signed/unsigned are now int/uint
- most of the x==true,x==false tests changed to x,!x
A lot of spot improvements to consistency, simplicity and quality have
gone in along the way, of course. But we'll probably never fully finishing
beautifying every last line of code in the entire codebase. Still,
this is a really great start. Going forward, WIP diffs should start
being smaller and of higher quality once again.
I know the joke is, "until my coding style changes again", but ... this
was way too stressful, way too time consuming, and way too risky. I'm
too old and tired now for extreme upheavel like this again. The only
major change I'm slowly mulling over would be renaming the using
Natural<T>/Integer<T> = (u)intT; shorthand to something that isn't as
easily confused with the (u)int_t types ... but we'll see. I'll definitely
continue to change small things all the time, but for the larger picture,
I need to just accept the style I have and live with it.
byuu says:
Changelog:
- fixed FC AxROM / VRC7 regression
- BitField split to BooleanBitField/NaturalBitField (in preparation
for IntegerBitField)
- BitFieldReference removed
- GB CPU cleaned up
- GB Cartridge + Mappers cleaned up
- SFC CGRAM is now emulated as uint15[256] instead of uint[512]
- sfc/ppu/memory.cpp no longer needed; removed
- purged SFC Debugger hooks for now (some of the operator[] calls were
bypassing them anyway)
Unfortunately, for reasons that defy all semblance of logic, the CGRAM
change caused a slight speed hit. As have the last few changes. We're
now down to around 129.5fps compared to 123.fps for v099 and 134.5fps
at our peak (v099r01-r02).
I really like the style I came up with for the Game Boy mappers to settle
the purpose(ROM,RAM) vs (rom,ram)Purpose naming convention. If I ever get
around to redoing the NES mappers, that's likely the approach I'll take.
byuu says:
Changelog:
- fixed Super Game Boy regression from v096r04 with bottom tile row
flickering
- fixed GB STAT IRQ regression from previous WIP
- Altered Space is now playable
- GBVideoPlayer isn't; but nobody seems to know exactly what weird
hardware quirk that one relies on to work
- ~3-4% speed improvement in SuperFX games by eliminating function<>
callback on register assignments
- most noticeable in Doom in-game; least noticeable on Yoshi's Island
title screen (darn)
- finished GSU core and SuperFX coprocessor code cleanups
- did some more work cleaning up the LR35902 core and GB CPU code
Just a fair warning: don't get your hopes up on these GB
fixes. Cliffhanger now hangs completely (har har), and none of the
other bugs are fixed. We pretty much did all this work just for Altered
Space. So, I hope you like playing Altered Space.
byuu says:
Changelog:
- GNUmakefile: reverted $(call unique,) to $(strip)
- processor/r6502: removed templates; reduces object size from 146.5kb
to 107.6kb
- processor/lr35902: removed templates; reduces object size from 386.2kb
to 197.4kb
- processor/spc700: merged op macros for switch table declarations
- sfc/coprocessor/sa1: partial cleanups; flattened directory structure
- sfc/coprocessor/superfx: partial cleanups; flattened directory structure
- sfc/coprocessor/icd2: flattened directory structure
- gb/ppu: changed behavior of STAT IRQs
Major caveat! The GB/GBC STAT IRQ changes has a major bug in it somewhere
that's seriously breaking most games. I'm pushing the WIP anyway, because
I believe the changes to be mostly correct. I'd like to get more people
looking at these changes, and also try more heavy-handed hacking and
diff comparison logging between the previous WIP and this one.
byuu says:
Changelog:
- emulation cores now refresh video from host thread instead of
cothreads (fix AMD crash)
- SFC: fixed another bug with leap year months in SharpRTC emulation
- SFC: cleaned up camelCase on function names for
armdsp,epsonrtc,hitachidsp,mcc,nss,sharprtc classes
- GB: added MBC1M emulation (requires manually setting mapper=MBC1M in
manifest.bml for now, sorry)
- audio: implemented Emulator::Audio mixer and effects processor
- audio: implemented Emulator::Stream interface
- it is now possible to have more than two audio streams: eg SNES
+ SGB + MSU1 + Voicer-Kun (eventually)
- audio: added reverb delay + reverb level settings; exposed balance
configuration in UI
- video: reworked palette generation to re-enable saturation, gamma,
luminance adjustments
- higan/emulator.cpp is gone since there was nothing left in it
I know you guys are going to say the color adjust/balance/reverb stuff
is pointless. And indeed it mostly is. But I like the idea of allowing
some fun special effects and configurability that isn't system-wide.
Note: there seems to be some kind of added audio lag in the SGB
emulation now, and I don't really understand why. The code should be
effectively identical to what I had before. The only main thing is that
I'm sampling things to 48000hz instead of 32040hz before mixing. There's
no point where I'm intentionally introducing added latency though. I'm
kind of stumped, so if anyone wouldn't mind taking a look at it, it'd be
much appreciated :/
I don't have an MSU1 test ROM, but the latency issue may affect MSU1 as
well, and that would be very bad.
byuu says:
Changelog:
- SFC: fixed behavior of 21fx $21fe register when no device is connected
(must return zero)
- SFC: reduced 21fx buffer size to 1024 bytes in both directions to
mirror the FT232H we are using
- SFC: eliminated dsp/modulo-array.hpp [1]
- higan: implemented higan/video interface and migrated all cores to it
[2]
[1] the echo history buffer was 8-bytes, so there was no need for it at
all here. Not sure what I was thinking. The BRR buffer was 12-bytes, and
has very weird behavior ... but there's only a single location in the
code where it actually writes to this buffer. It's much easier to just
write to the buffer three times there instead of implementing an entire
class just to abstract away two lines of code. This change actually
boosted the speed from ~124.5fps to around ~127.5fps, but that's within
the margin of error for GCC. I doubt it's actually faster this way.
The DSP core could really use a ton of work. It comes from a port of
blargg's spc_dsp to my coding style, but he was extremely fond of using
32-bit signed integers everywhere. There's a lot of opportunity to
remove red tape masking by resizing the variables to their actual state
sizes.
I really need to find where I put spc_dsp6.sfc from blargg. It's a great
test to verify if I've made any mistakes in my implementation that would
cause regressions. Don't suppose anyone has it?
[2] so again, the idea is that higan/audio and higan/video are going to
sit between the emulation cores and the user interfaces. The hope is to
output raw encoding data from the emulation cores without having to
worry about the video display format (generally 24-bit RGB) of the host
display. And also to avoid having to repeat myself with eg three
separate implementations of interframe blending, and so on.
Furthermore, the idea is that the user interface can configure its side
of the settings, and the emulation cores can configure their sides.
Thus, neither has to worry about the other end. And now we can spin off
new user interfaces much easier without having to mess with all of these
things.
Right now, I've implemented color emulation, interframe blending and
SNES horizontal color bleed. I did not implement scanlines (and
interlace effects for them) yet, but I probably will at some point.
Further, for right now, the WonderSwan/Color screen rotation is busted
and will only show games in the horizontal orientation. Obviously this
must be fixed before the next official release, but I'll want to think
about how to implement it.
Also, the SNES light gun pointers are missing for now.
Things are a bit messy right now as I've gone through several revisions
of how to handle these things, so a good house cleaning is in order once
everything is feature-complete again. I need to sit down and think
through how and where I want to handle things like light gun cursors,
LCD icons, and maybe even rasterized text messages.
And obviously ... higan/audio is still just nall::DSP's headers. I need
to revamp that whole interface. I want to make it quite powerful with
a true audio mixer so I can handle things like
SNES+SGB+MSU1+Voicer-Kun+SNES-CD (five separate audio streams at once.)
The video system has the concept of "effects" for things like color
bleed and interframe blending. I want to extend on this with useful
other effects, such as NTSC simulation, maybe bringing back my mini-HQ2x
filter, etc. I'd also like to restore the saturation/gamma/luma
adjustment sliders ... I always liked allowing people to compensate for
their displays without having to change settings system-wide. Lastly,
I've always wanted to see some audio effects. Although I doubt we'll
ever get my dream of CoreAudio-style profiles, I'd like to get some
basic equalizer settings and echo/reverb effects in there.
byuu says:
I refactored my schedulers. Added about ten lines to each scheduler, and
removed about 100 lines of calling into internal state in the scheduler
for the FC,SFC cores and about 30-40 lines for the other cores. All of
its state is now private.
Also reworked all of the entry points to static auto Enter() and auto
main(). Where Enter() handles all the synchronization stuff, and main()
doesn't need the while(true); loop forcing another layer of indentation
everywhere.
Took a few hours to do, but totally worth it. I'm surprised I didn't do
this sooner.
Also updated icarus gmake install rule to copy over the database.
byuu says:
Note: balanced/performance profiles still broken, sorry.
Changelog:
- added nall/GNUmakefile unique() function; used on linking phase of
higan
- added nall/unique_pointer
- target-tomoko and {System}::Video updated to use
unique_pointer<ClassName> instead of ClassName* [1]
- locate() updated to search multiple paths [2]
- GB: pass gekkio's if_ie_registers and boot_hwio-G test ROMs
- FC, GB, GBA: merge video/ into the PPU cores
- ruby: fixed ~AudioXAudio2() typo
[1] I expected this to cause new crashes on exit due to changing the
order of destruction of objects (and deleting things that weren't
deleted before), but ... so far, so good. I guess we'll see what crops
up, especially on OS X (which is already crashing for unknown reasons on
exit.)
[2] right now, the search paths are: programpath(), {configpath(),
"higan/"}, {localpath(), "higan/"}; but we can add as many more as we
want, and we can also add platform-specific versions.
byuu says:
This release features improvements to all emulation cores, but most
substantially for the Game Boy core. All of blargg's test ROMs that pass
in gambatte now either pass in higan, or are off by 1-2 clocks (the
actual behaviors are fully emulated.) I consider the Game Boy core to
now be fairly accurate, but there's still more improvements to be had.
Also, what's sure to be a major feature for some: higan now has full
support for loading and playing ordinary ROM files, whether they have
copier headers, weird extensions, or are inside compressed archives. You
can load these games from the command-line, from the main Library menu
(via Load ROM Image), or via drag-and-drop on the main higan window. Of
course, fans of game folders and the library need not worry: that's
still there as well.
Also new, you can drop the (uncompressed) Game Boy Advance BIOS onto the
higan main window to install it into the correct location with the
correct file name.
Lastly, this release technically restores Mac OS X support. However,
it's still not very stable, so I have decided against releasing binaries
at this time. I'd rather not rush this and leave a bad first impression
for OS X users.
Changelog (since v096):
- higan: project source code hierarchy restructured; icarus directly
integrated
- higan: added software emulation of color-bleed, LCD-refresh,
scanlines, interlacing
- icarus: you can now load and import ROM files/archives from the main
higan menu
- NES: fixed manifest parsing for board mirroring and VRC pinouts
- SNES: fixed manifest for Star Ocean
- SNES: fixed manifest for Rockman X2,X3
- GB: enabling LCD restarts frame
- GB: emulated extra OAM STAT IRQ quirk required for GBVideoPlayer
(Shonumi)
- GB: VBK, BGPI, OBPI are readable
- GB: OAM DMA happens inside PPU core instead of CPU core
- GB: fixed APU length and sweep operations
- GB: emulated wave RAM quirks when accessing while channel is enabled
- GB: improved timings of several CPU opcodes (gekkio)
- GB: improved timings of OAM DMA refresh (gekkio)
- GB: CPU uses open collector logic; return 0xFF for unmapped memory
(gekkio)
- GBA: fixed sequencer enable flags; fixes audio in Zelda - Minish Cap
(Jonas Quinn)
- GBA: fixed disassembler masking error (Lioncash)
- hiro: Cocoa support added; higan can now be compiled on Mac OS X 10.7+
- nall: improved program path detection on Windows
- higan/Windows: moved configuration data from %appdata% to
%localappdata%
- higan/Linux,BSD: moved configuration data from ~/.config/higan to
~/.local/higan
byuu says:
Changelog:
- GB: re-enabling the LCD resets the display to LY=0,LX=0 [1]
- GB: emulated new findings (as of today!) for a DMG quirk that triggers
an extra OAM STAT IRQ when Vblank STAT IRQs are off
- GB: made VBK, BGPI, OBPI readable
- GB: fixed APU length operations
- GB: fixed APU sweep operations
- NES: fixed cartridge/ -> board/ manifest lookups for mirroring/pinous
- hiro/Cocoa: added endrift's plist keys
Fixed:
- Astro Rabby is fully playable, even the title screen works correctly
- Bomb Jack is fully playable
- Kirby's Dream Land 2 intro scrolling first scanline of Rick is now fixed
- GBVideoPlayer functions correctly [2]
- Shin Megami Tensei: Devichil series regression fixed
[1] doesn't pass oam_bug-2/1-lcd_sync; because it seems to want
LY=0,LX>0, and I can't step the PPU in a register write as it's not
a state machine; the effect is emulated, it just starts the frame a tiny
bit sooner. blargg's testing is brutal, you can't be even one cycle off
or the test will fail.
[2] note that you will need the GBC Display Emulation shader from
hunterk's repository, or it will look like absolute shit. The
inter-frame blending is absolutely critical here.
byuu says:
Changelog:
- restructured the project and removed a whole bunch of old/dead
directives from higan/GNUmakefile
- huge amounts of work on hiro/cocoa (compiles but ~70% of the
functionality is commented out)
- fixed a masking error in my ARM CPU disassembler [Lioncash]
- SFC: decided to change board cic=(411,413) back to board
region=(ntsc,pal) ... the former was too obtuse
If you rename Boolean (it's a problem with an include from ruby, not
from hiro) and disable all the ruby drivers, you can compile an
OS X binary, but obviously it's not going to do anything.
It's a boring WIP, I just wanted to push out the project structure
change now at the start of this WIP cycle.
byuu says:
Changelog:
- added Cocoa target: higan can now be compiled for OS X Lion
[Cydrak, byuu]
- SNES/accuracy profile hires color blending improvements - fixes
Marvelous text [AWJ]
- fixed a slight bug in SNES/SA-1 VBR support caused by a typo
- added support for multi-pass shaders that can load external textures
(requires OpenGL 3.2+)
- added game library path (used by ananke->Import Game) to
Settings->Advanced
- system profiles, shaders and cheats database can be stored in "all
users" shared folders now (eg /usr/share on Linux)
- all configuration files are in BML format now, instead of XML (much
easier to read and edit this way)
- main window supports drag-and-drop of game folders (but not game files
/ ZIP archives)
- audio buffer clears when entering a modal loop on Windows (prevents
audio repetition with DirectSound driver)
- a substantial amount of code clean-up (probably the biggest
refactoring to date)
One highly desired target for this release was to default to the optimal
drivers instead of the safest drivers, but because AMD drivers don't
seem to like my OpenGL 3.2 driver, I've decided to postpone that. AMD
has too big a market share. Hopefully with v093 officially released, we
can get some public input on what AMD doesn't like.
byuu says:
This will be another massive diff from the previous version.
All of higan was updated to use the new foo& bar syntax, and I also
updated switch statements to be consistent as well (but not in the
disassemblers, was starting to get an RSI just from what I already did.)
phoenix/{windows, cocoa, qt} need to be updated to use "string foo"
instead of "const string& foo", and after that, the major diffs should
be finished.
This archive is the first time I'm posting my copy-on-write,
size+capacity nall::string class, so any feedback on that is welcome as
well.
byuu says:
Basically just a project rename, with s/bsnes/higan and the new icon
from lowkee added in.
It won't compile on Windows because I forgot to update the resource.rc
file, and a path transform command isn't working on Windows.
It was really just meant as a starting point, so that v091 WIPs can flow
starting from .00 with the new name (it overshadows bsnes v091, so
publicly speaking this "shouldn't exist" and will probably be deleted
from Google Code when v092 is ready.)
Tim Allen