Log message:
emulators/jgenesis: update to 0.9.0

Notable changes since the last release (v0.8.3):

    Revamped low-pass filter options for Genesis / Sega CD / 32X that should be \ 
significantly more accurate to actual hardware than the v0.8.3 settings
    Improved audio quality for all emulated systems via much higher-quality \ 
audio resampling
    A rather large number of bugfixes for Genesis, Sega CD, 32X, SMS, Game Gear, \ 
SNES, Game Boy [Color]
    Major bugfixes for Linux AppImage builds in Wayland
    Save state files are now internally compressed using zstd, which should \ 
reduce save state file size by 70-80% in most cases
    Basic CPU + CD-ROM drive overclocking options for Sega CD, which have fairly \ 
low compatibility but do help in some games

Full changelog below.
New Features

    (Genesis / Sega CD / 32X) Replaced the low-pass filtering settings added in \ 
v0.8.3 with a new set of options that should be more accurate to actual hardware
        New option to apply a first-order 3.39 KHz low-pass filter to Genesis \ 
audio output; this is ON by default (biggest change from previous default \ 
settings)
        New option to apply a second-order 7.97 KHz low-pass filter to Sega CD \ 
PCM audio output; this is ON by default
        New options to individually configure whether the Genesis low-pass \ 
filter is applied to Sega CD and 32X audio output; these are all OFF by default
    (Genesis / SNES) Added a new video setting to disable deinterlacing in the \ 
handful of games that use interlaced display modes (e.g. Sonic the Hedgehog 2 in \ 
2P Vs. mode, Ys III (Genesis) with the in-game "Int Mode" option \ 
enabled, Air Strike Patrol in mission briefing screens)
        Deinterlacing enabled matches the behavior in previous versions: \ 
normal-resolution interlaced modes display the same as progressive mode, and \ 
high-res interlaced modes make the graphics processor render all 448/480 lines \ 
every frame
    (Sega CD) Added an option to overclock the sub CPU by decreasing the master \ 
clock divider (#138)
    (Sega CD) Added an option to increase the disc drive speed when reading data \ 
tracks (#138)
        This has low compatibility but can shorten loading times in some games. \ 
Compatibility is slightly higher when the sub CPU is overclocked
    (Sega CD) Added an additional PCM chip interpolation option for 6-point \ 
cubic Hermite interpolation, which in some cases produces a slightly cleaner \ 
sound than 4-point cubic Hermite (the existing setting)
    Added a new hotkey to quickly toggle whether overclocking settings are \ 
enabled, for the systems that support overclocking (this includes Sega CD's new \ 
drive speed setting)
        This is mainly useful for Sega CD, where increasing the drive speed can \ 
shorten loading times during gameplay but almost always breaks FMVs and animated \ 
cutscenes

Improvements

    Audio resampling code has been rewritten to use the windowed sinc \ 
interpolation algorithm, which is much higher quality than the previous \ 
resampling implementation at a relatively low performance cost (for most \ 
emulated systems)
        Windowed sinc interpolation can be very performance-intensive for NES \ 
and GB/GBC audio resampling, so these two systems have a new audio setting to \ 
choose between windowed sinc interpolation and the old resampling algorithm \ 
(low-pass filter followed by nearest neighbor interpolation)
    (Genesis) Slightly improved performance by optimizing VDP rendering and tile \ 
fetching code
    (Genesis) Frontends now recognize .gen and .smd as file extensions for \ 
Genesis / Mega Drive ROM images (#149)
        This includes attempting to auto-detect when a ROM image is interleaved \ 
(common for .smd files), and deinterleaving it during load
    (SMS) The "crop vertical borders" video setting now defaults to \ 
enabled instead of disabled; unlike the left border, the vertical borders will \ 
only ever show the current backdrop color
    (SMS) The SMS model setting now defaults to SMS1, which emulates a VDP \ 
hardware quirk that is required for the Japanese version of Ys to render \ 
correctly (#182)
    (SMS / Game Gear) Reduced log level of a warning message that caused \ 
excessively verbose log output in Virtua Fighter Mini (#199)
    (SNES) In games that use the SA-1 coprocessor, the SA-1 CPU now gets a wait \ 
cycle every time it accesses SA-1 BW-RAM, similar to actual hardware
        The SA-1 CPU still runs faster than actual hardware in some cases \ 
because bus conflict wait cycles are not emulated
    GUI: When opening a game that requires a BIOS ROM or firmware ROM (e.g. any \ 
Sega CD game), if the BIOS/firmware ROM path is not configured, the error window \ 
now contains a button to configure the appropriate ROM path and immediately \ 
launch the game
    CLI: If no config file exists, the CLI will now attempt to write out the \ 
default config to the config path so that it can be edited manually if desired
    Save state files are now internally compressed using zstd which should \ 
reduce save state file size by at least 50%, often by 70-80%
    Frontends should now correctly handle files with uppercase file extensions

Multi-System Fixes

    Fixed a performance bug in the audio resampling code that could have caused \ 
intermittent extremely poor performance due to performing arithmetic on \ 
subnormal floating-point numbers, which can be up to 100 times slower than \ 
normal floating-point arithmetic on some CPUs (#135)
    Linux: AppImage builds now exclude all Wayland-related system libraries \ 
during packaging; this fixes the emulator failing to launch in some distros, \ 
e.g. Solus Plasma (#143)
    Linux: AppImage builds now interpret relative paths in command-line \ 
arguments as being relative to the original working directory where the AppImage \ 
was launched from, not the AppImage internal runner directory (#147)
    Linux/BSD CLI: For these platforms only and for the CLI only, reverted the \ 
change to estimate window scale factor because SDL_GetDisplayDPI does not return \ 
reliable values on Linux/BSD
    Adjusted frame time sync's sleep implementation to fix frame time sync \ 
potentially causing slowdown on some platforms
    Save state files are now explicitly versioned, which fixes potential \ 
crashing when attempting to load an incompatible save state file from a \ 
different version

Genesis / Mega Drive Fixes

    Fixed the 68000 incorrectly being allowed to access audio RAM while the Z80 \ 
is on the bus; this fixes freezing in Joe & Mac (#144)
    Fixed Z80 RESET not clearing the Z80's HALT status
    Fixed writes to YM2612 F-num high / block registers ($A4-$A6 and $AC-$AE) \ 
taking effect immediately instead of after the next F-num low register write; \ 
this fixes some music glitches in Valis
    Implemented more accurate emulation of how the YM2612 computes operator \ 
amplitude from phase and envelope attenuation
    Fixed in-game saves not working correctly when Sonic & Knuckles is \ 
locked on to a cartridge with SRAM (e.g. Sonic 3)
    Fixed certain revisions of QuackShot not loading correctly due to having \ 
non-standard cartridge ROM address mappings (#174)
    Fixed some illegal 68000 opcodes incorrectly decoding to "valid" \ 
instructions (#184 / #185)
    Fixed an edge case related to how sprite tile/pixel overflow interacts with \ 
H=0 sprite masking (#186)

Sega CD Fixes

    Implemented a higher minimum seek time for small seek distances; this fixes \ 
Thunder Storm FX (JP) failing to boot (#178)
    Fixed a regression introduced in v0.8.3 that caused PCM chip channels to \ 
skip the first sample after being enabled (this made little-to-no audible \ 
difference in practice because the first sample is usually 0)
    Fixed slightly inaccurate emulation of PCM chip looping behavior at sample \ 
rates higher than 0x0800 / 32552 Hz
    Fixed inaccurate emulation of CD-DA fader volumes 1-3 out of 1024 (should be \ 
50-60 dB of attenuation instead of complete silence)
    Unmapped/unknown address accesses will now log an error instead of crashing \ 
the emulator

32X Fixes

    Fixed a major bug in the PWM resampling code that caused PWM audio output to \ 
sound significantly more poppy and crackly than it's supposed to
    Fixed a bug around synchronizing SH-2 accesses to 32X communication ports \ 
that could have caused writes to be skipped in some cases; this fixes freezing \ 
in the Sonic Robo Blast 32X demo (#160)
    Significantly improved timing of 32X VDP interrupts for the SH-2s (#166)
    Significantly improved synchronization between the SH-2s and the 68000
    Fixed PWM DMA transfer rate via DREQ1 not taking the PWM timer interval into \ 
account; this fixes broken sound effects in BC Racers (#179)

Master System / Game Gear Fixes

    Fixed the Z80's RETI instruction not correctly copying IFF2 to IFF1 like \ 
RETN does; this fixes Desert Strike from freezing when you press Start/Pause \ 
(#181)
    Fixed incorrect handling of non-power-of-two ROM sizes, which fixes several \ 
homebrew games and demos (#201 / #203 / #204)
    (Game Gear) Fixed the emulator crashing if a game enables the VDP's 224-line \ 
mode, as the homebrew GG Turrican does (#202)

SNES Fixes

    Implemented more accurate clipping and truncation in Mode 7 intermediate \ 
calculations; this fixes glitched Mode 7 graphics in Tiny Toon Adventures: Wacky \ 
Sports Challenge (#161)
    Mode 7 registers are now latched about 12 pixels before line rendering \ 
begins; this fixes a glitchy line near the bottom of the play area in Battle \ 
Clash, where the screen transitions from Mode 1 to Mode 7
    Implemented an obscure behavior regarding the effects of writing to OAM \ 
during active display; this fixes incorrect sprite display in Uniracers' Vs. \ 
mode (#164)
    Made a best effort at implementing the effects on sprites of toggling forced \ 
blanking during active display; this mostly fixes some test ROMs that exercise \ 
this (#162)
    Adjusted behavior of APU communication ports when the 65816 writes to a port \ 
on the same cycle that the SPC700 cle

    ars the port; this fixes Kishin Douji Zenki: Tenchi Meidou failing...

Log message:
*: Recursive revbump from audio/flac-1.5.0

Log message:
emulators/jgenesis: update to 0.8.3

New Features

    (Genesis / Sega CD / 32X) Added an audio setting to select 1 of 4 different \ 
audio low-pass filters, with cutoff frequencies ranging from about 15000 Hz \ 
(comparable to the existing filter) to about 5000 Hz (produces a very soft \ 
sound)
    (Genesis / Sega CD / 32X) Added a video setting to enable/disable individual \ 
graphics layers
    (Sega CD) Added an audio enhancement setting to apply linear interpolation \ 
or cubic Hermite interpolation to PCM sound chip channels; this significantly \ 
reduces audio noise and audio aliasing in games that play music or voice acting \ 
through the PCM chip (e.g. Lunar: Eternal Blue all the time, Sonic CD in past \ 
stages, basically every FMV game for cutscene audio)
    (GB) Added an option to use a custom 4-color palette, with a color picker UI \ 
for configuring the custom palette colors
    Added a new hotkey that completely exits the application (#140)
        The previous "quit" hotkey (which only closed the currently \ 
running game) has been renamed to "power off"

Improvements

    (32X) PWM chip audio output resampling now uses cubic interpolation rather \ 
than a filter that assumed a source frequency of 22 KHz; this should improve \ 
audio quality in games that use PWM sample rates other than 22 KHz (e.g. After \ 
Burner Complete and Space Harrier)
    Input mappings that use modifier keys (Shift / Ctrl / Alt) no longer \ 
distinguish between Left and Right versions of the modifier, e.g. Left Shift and \ 
Right Shift are now both treated as simply "Shift" for input mapping \ 
purposes (#139)
    Redesigned most of the audio low-pass filters to explicitly target a cutoff \ 
frequency of about 15000 Hz with a stopband edge frequency of about 20000 Hz, \ 
which should further reduce resampling-related audio aliasing
        For performance reasons, NES and GB/GBC instead target a cutoff \ 
frequency of roughly 10000 Hz with a less steep attenuation slope past the \ 
cutoff frequency
    Implemented a performance optimization in how audio low-pass filters are \ 
applied when running on CPUs that support x86_64 AVX and FMA instructions (which \ 
is almost every x86_64 CPU made in the last 10 years; AVX2 is not needed)
    (SMS / Game Gear / Genesis) Improved video memory viewer UI so that it's now \ 
possible to view CRAM and VRAM simultaneously, as well as current VDP settings \ 
(captured once per frame at the beginning of VBlank)
    Display scale factor / DPI is now taken into account when determining \ 
initial emulator window size in windowed mode
    GUI: The GUI window is now repainted immediately when a directory scan \ 
finishes, rather than requiring mouse movement or a keyboard input to trigger \ 
the repaint

Fixes

    (32X) Fixed the 68000 incorrectly being allowed to change the PWM timer \ 
interrupt interval via $A15130 writes; this fixes Primal Rage having horribly \ 
broken sound effects
    Fixed an input configuration bug that made it effectively impossible to \ 
correctly configure any gamepad where SDL reads digital buttons as analog axes, \ 
such as the 8BitDo M30 with its C and R buttons (#135)
    Fixed some minor bugs in the common audio resampling code related to how \ 
low-pass filters are applied
    CLI: For options that only accept a fixed set of possible values, the list \ 
of possible values in the help text is now auto-generated at compile time; this \ 
fixes at least one case where an option's help text listed a possible value that \ 
does not exist, and another case where an option's help text omitted a valid \ 
possible value

Log message:
emulators/jgenesis: re-enable zenety dependency

Forgot to switch this on.

Log message:
emulators/jgenesis: update to 0.8.2

v0.8.2

Mostly frontend improvements, the highlights being improved video/audio sync and \ 
more flexible

input/hotkey mapping. Also adds Genesis overclocking support.

Input/hotkey configuration is not compatible with previous versions; input \ 
configuration is now stored in a different format, and all input-related \ 
settings will one-time revert to defaults if using a config file from a previous \ 
version

Save states are not compatible with previous versions
New Features

    Video/audio sync improvements which should enable significantly improved \ 
frame pacing without needing to rely on 60Hz VSync (which can cause very \ 
noticeable input latency on some platforms)
        Added a new "frame time sync" option that uses the host system \ 
clock to match the emulated system's framerate and frame timing as closely as \ 
possible without relying on host GPU synchronization (i.e. VSync)
        Added a new option for dynamic audio resampling ratio, which \ 
periodically adjusts the audio resampling ratio to try and avoid audio buffer \ 
underflows and overflows (which both cause audio popping)
            This is implemented in a very conservative way in order to avoid \ 
audible differences in audio pitch, so it is not completely guaranteed to \ 
prevent audio buffer underflow/overflow
        Audio sync now checks the audio buffer size every 16 samples enqueued \ 
rather than only checking once per frame, which should significantly reduce \ 
stuttering when audio sync is enabled without VSync or frame time sync
        Adjusted default sync/audio settings values to hopefully make stuttering \ 
and audio popping less likely when running with default settings
        In the GUI, video/audio sync settings have been moved to a new window \ 
under Settings > Synchronization
    Input mapping overhaul to make input mapping/configuration more flexible \ 
(#134 / #137)
        Keyboard and gamepad settings are no longer separate configurations; \ 
each system now supports up to 2 mappings for each emulated button where each \ 
mapping can be a keyboard key, a gamepad input, or a mouse button
        Key/input/button combinations (2 or 3 simultaneous inputs) are now \ 
supported for mappings in addition to individual keys/inputs
        Hotkeys can now be mapped to gamepad inputs, mouse buttons, and \ 
combinations in addition to individual keyboard keys
        Each input settings window now has a button to apply one of two keyboard \ 
presets for P1 inputs, one with arrow keys mapped to the d-pad and one with WASD \ 
mapped to the d-pad
    Added a new set of hotkeys for saving/loading specific save state slots (#134)
    (Genesis / Sega CD / 32X) Added an option to overclock the main Genesis CPU \ 
(the 68000) by decreasing the master clock divider, which can reduce or \ 
eliminate slowdown in games (#133)
        Note that this is a fairly naive form of overclocking that works very \ 
well in many games but very poorly in some games; use with caution
        As far as SCD/32X, from my testing overclocking the 68000 almost always \ 
causes problems in 32X games (which are normally bottlenecked on SH-2 speed \ 
anyway), but it does fix slowdown in some Sega CD games
    (SMS / Game Gear) Replaced the "double Z80 CPU speed" setting with \ 
an option to overclock at finer granularity by decreasing the Z80 master clock \ 
divider
        Same caveat as above regarding this form of overclocking working very \ 
poorly in some games, and this is more of an issue for SMS/Game Gear than it is \ 
for Genesis/Sega CD
    Added an option to only hide the mouse cursor when in fullscreen, in \ 
addition to the previous settings of "always hide" and "never \ 
hide"
    Added an option to change the fullscreen mode from borderless to exclusive
    Added an option to change the audio output frequency from 48000 Hz to 44100 Hz

Improvements

    (Genesis / Sega CD) Slightly improved performance by advancing the emulated \ 
clock in larger intervals while a long VDP DMA is in progress
    (32X) Slightly improved performance by optimizing SH-2 instruction decoding
    (GB) Improved video frame delivery behavior when the PPU is powered off to \ 
make it play a little nicer with VSync and frame time sync
    The emulator window is now explicitly focused/raised when a game is loaded; \ 
previously this wouldn't always happen automatically, particularly on Windows

Fixes

    (Sega CD) Slightly extended the delay between a game sending a CDD Play/Read \ 
command and the CD drive reading the first sector; this fixes Time Gal having \ 
excruciatingly long "load times"
        "Load times" in quotes because the game was actually getting \ 
confused and repeatedly re-reading the same CD-ROM sectors until various \ 
interrupts happened to trigger at exactly the right times relative to each other
    (Sega CD) Fixed a bug where some backend settings would not correctly \ 
persist after loading a save state (they would temporarily revert to what they \ 
were when the save state was created)

v0.8.1

Small release with mostly bugfixes and a few save state-related features

SMS/Game Gear and NES save states are not compatible with previous versions, \ 
other systems' save states should be compatible
Features

    Made the game save file and save state locations configurable (#132)
        Can be set to the same folder as the ROM image (same as previous \ 
behavior), subdirectories in the emulator folder, or custom paths
    Added a new --load-save-state <SLOT> command-line arg to load a \ 
specific save state slot at game launch (#132)
    Added an option to attempt to load the most recently saved state when \ 
launching a game
        If this option is set when there are no save states or the most recent \ 
state cannot be loaded, the game will boot normally
    (Game Gear) Added an option to render at SMS resolution (256x192) instead of \ 
native resolution (160x144)
        The expanded parts of the frame often contain garbage because they \ 
weren't meant to be visible, but they sometimes contain an expanded playfield

Fixes

    (Sega CD) Fixed a bug where loading a save state could possibly crash the \ 
emulator due to a stack overflow; this was particularly likely to happen on \ 
Windows due to the small default stack size
        This was caused by the state deserialization code inadvertently \ 
deserializing some very large arrays into the stack before moving them to the \ 
heap, rather than deserializing directly into the heap
    (SMS/Game Gear) Fixed the VDP display disabled implementation so that it \ 
properly blanks the display rather than leaving the previous frame onscreen
    (SMS) Fixed the NTSC/PAL and SMS Model settings not having any effect when \ 
loading a game from a .zip/.7z file rather than a .sms file
    (NES) Fixed multiple bugs related to how the PPU determines what color to \ 
display when rendering is disabled while PPUADDR points to palette RAM; this \ 
fixes Micro Machines having a solid gray bar in the middle of the title screen, \ 
as well as several test ROMs that rely on this hardware quirk for high-color \ 
display (#53 / #55 / #56)
    GUI: Saving or loading a save state slot from the GUI window now also \ 
changes the selected save state slot
    CLI: Fixed

    the 32X option missing from the help text for the --hardware arg (#131)
    The video memory viewer window now renders without VSync; this fixes likely \ 
stuttering and audio popping while the memory viewer window is open

Log message:
emulators/jgenesis: update to 0.8.0

Highlights
 - Added support for 32X emulation (with a caveat regarding performance)
 - Significant audio quality improvements for Genesis / Mega Drive and SNES
 - Support for loading directly from .zip and .7z files
 - Lots of Genesis / Mega Drive bugfixes

32X Notes
 - All released 32X games plus Doom 32X Resurrection should be playable except \ 
for the 6 FMV games that require the Sega CD 32X combo
     - Doom 32X Resurrection features that require Sega CD do not currently work \ 
(CD-DA music, offloading some audio processing to the Sega CD 68000)
 - SH-2 CPU cache and basic SH-2 memory access timings are emulated, so overall \ 
SH-2 speed should be moderately accurate (though still faster than actual \ 
hardware in some cases)
 - SH-2 emulation is currently not optimized well - full-speed 32X emulation \ 
requires a CPU with decent single-core performance, and fast-forward speed will \ 
be very limited
     - For a comparison point, the Steam Deck CPU barely runs 32X at full speed \ 
from my testing
     - This will likely improve in a future release - the current implementation \ 
is pure interpreter because that was easiest to implement and it (surprisingly) \ 
still runs at full speed with a fast
enough host CPU

New Features
 - Added support for loading directly from .zip and .7z compressed archives for \ 
every console except Sega CD (#91)
     - Archives containing multiple images are only partially supported; in this \ 
case the emulator will always load the first file with a recognized file \ 
extension
 - (SNES) Added an audio enhancement option for cubic Hermite interpolation \ 
between decoded ADPCM samples, which usually makes the audio sound sharper and \ 
less muffled
     - The difference is most noticeable in games that use low sample rate \ 
audio, such as the Donkey Kong Country trilogy
     - This is off by default because it pretty radically changes the sound in \ 
some games
 - (Genesis) Added an option to have no controller plugged into one or both of \ 
the controller ports, for games that behave differently based on the presence or \ 
absence of a controller (#113)
 - (NES) Added support for the UNROM 512 mapper (iNES mapper 30), a homebrew \ 
mapper used by a number of games including Black Box Challenge and Battle Kid 2 \ 
(#73 / #86)
     - This mapper unusually supports flash memory mapped as PRG \ 
"ROM"; for the games that have this (e.g. Black Box Challenge), it's \ 
emulated by persisting the entire current contents of PRG ROM to
the save file whenever the game modifies itself
 - (GB) Added partial support for the Hudson HuC-3 mapper, used by Robopon and a \ 
few Japan-only games (#89)
     - "Partial" because the builtin speaker, the IR sensor, and parts \ 
of the event/alarm functionality are not emulated
 - GUI: Added a new "Open Using" menu option to open a file using a \ 
specific emulator core, rather than always choosing the core based on file \ 
extension (#121)
 - GUI: Added an option to explicitly set the UI theme to light or dark rather \ 
than always using the system default

Improvements
 - (Genesis) YM2612 DAC crossover distortion (aka the "ladder effect") \ 
is now emulated, which significantly improves music accuracy in a number of \ 
games; this is extremely noticeable in Streets of
Rage, Streets of Rage 2, and After Burner II, among others
     - There is also a new option to disable ladder effect emulation, since the \ 
effect was less pronounced on later console models (and also because I think \ 
it's neat to hear how it affects the sound
by toggling a checkbox)
 - (SMS/GG/Genesis) Replaced the PSG and YM2612 low-pass filters with much more \ 
aggressive ones; this should generally improve audio quality, and in some cases \ 
will remove erroneous buzzing/popping
noises that were present before (e.g. in The Adventures of Batman & Robin) (#108)
 - Improved audio output behavior for all emulator backends, which should \ 
significantly reduce the likelihood of audio pops caused by audio buffer \ 
underflow
 - GUI: Added help text to most options menus
 - GUI: Improved performance when the main list table is large

Genesis / Mega Drive Fixes
 - Fixed the PSG's noise channel not oscillating when the period is set to 0 \ 
(which should behave the same as period of 1); this fixes missing high-frequency \ 
noise in Knuckles' Chaotix among other
games
 - Fixed a degenerate case for performance when a game repeatedly writes the \ 
same value to specific VDP registers during active display, as After Burner \ 
Complete does
 - Fixed some 68000 CPU bugs discovered while working on 32X support
     - Implemented line 1010/1111 exception handling for when the 68000 executes \ 
an illegal opcode where the highest 4 bits are 1010 or 1111; Zaxxon's Motherbase \ 
2000 depends on this to boot
     - Fixed divide by zero exception handling pushing the wrong PC value onto \ 
the stack; After Burner Complete frequently divides by zero and depends on \ 
correctly handling the exception
     - Fixed the DIVS instruction finishing way too quickly in some cases where \ 
the division overflows a signed 16-bit result but the CPU doesn't detect the \ 
overflow early
 - Fixed an off-by-one error in determining whether to set the sprite overflow \ 
flag in the VDP status register; this fixes flickering sprite graphics in Alex \ 
Kidd in the Enchanted Castle (#125)
     - This was a regression introduced in v0.6.1 as part of the changes to get \ 
Overdrive 2's textured cube effect working
 - Adjusted how writes to the controller CTRL registers ($A10009 / $A1000B) \ 
affect the controller's TH line; this fixes controls not working properly in \ 
Trouble Shooter (#110)
 - Made it possible for games to read the VINT flag in the VDP status register \ 
as 1 slightly before the 68000 INT6 interrupt is raised; this fixes Tyrants: \ 
Fight Through Time and Ex-Mutants failing
to boot (#127)
 - Implemented undocumented behavior regarding how the Z80 BIT instruction sets \ 
the S and P/V flags; this fixes missing audio in Ex-Mutants, which relies on \ 
this behavior in its audio driver code
 - Implemented approximate emulation of memory refresh delay
     - This is emulated by simply stalling the 68000 for 2 out of every 128 mclk \ 
cycles, unless it executes a very long instruction that doesn't access the bus \ 
mid-instruction (e.g. multiplication or
division)
     - Memory refresh delay is not emulated in 32X mode because it seemed to \ 
break audio synchronization between the Genesis and 32X hardware in some games
 - Added SRAM mappings for several games that have SRAM in the cartridge but \ 
don't declare it in the cartridge header: NHL 96, Might and Magic, and Might and \ 
Magic III (#107 / #116 / #117)
 - Little-endian ROM images are now detected and byteswapped on load; this along \ 
with a custom ROM address mapping fixes Triple Play failing to boot (#112)
 - The emulator will now recognize the unconventionial region string \ 
"EUROPE" as meaning that the game only supports PAL/EU; this fixes \ 
Another World incorrectly defaulting to NTSC/US mode instead of
PAL/EU (#122)
 - Unused bits in the Z80 BUSACK register ($A11100) now read approximate open \ 
bus instead of 0; this fixes Danny Sullivan's Indy Heat failing to boot (#120)
 - Improved VDP DMA timing; this fixes corrupted graphics in OutRunners (#118)
 - The vertical interrupt is now delayed by one 68000 instruction if a game \ 
enables vertical interrupts while a vertical interrupt is pending; this fixes \ 
Sesame Street: Counting Cafe failing to boot
(#119)
 - The Z80 BUSACK line now changes immediately in response to bus arbiter \ 
register writes instead of waiting for the next Z80 instruction time slot; this \ 
fixes the Arkagis Revolution demo failing to
boot (#123)
 - The emulator will now enable the bank-switching Super Street Fighter 2 mapper \ 
if the cartridge header declares the system as "SEGA DOA" in addition \ 
to the standard value of "SEGA SSF"; this fixes
the Demons of Asteborg demo not working properly (#115)

Other Fixes
 - Fixed save state slots not working properly if the ROM filename contains \ 
multiple dots; before this fix, only one slot would ever be used
 - (Sega CD) When a game issues a CDD command while the drive is playing, the \ 
drive now continues to read one more sector before it changes behavior in \ 
response to the new command; this fixes Radical
Rex crashing during the intro (#100)
 - (Sega CD) Writes to PRG RAM by the main CPU and the Z80 are now blocked \ 
unless the sub CPU is removed from the bus; this fixes Dungeon Explorer from \ 
crashing after the title screen (#104)
 - (Sega CD) The sub CPU is now halted if it accesses word RAM in 2M mode while \ 
word RAM is owned by the main CPU, and it remains halted until the main CPU \ 
transfers ownership back to the sub CPU.
This fixes glitched graphics in Marko's Magic Football (#101)
 - (Sega CD) Various fixes to CDC register and DMA behavior; with this plus all \ 
of the above fixes, the emulator now fully passes the mcd-verificator test suite \ 
(#105)
 - (NES) The UxROM mapper code (iNES mapper 2) no longer assumes that the \ 
cartridge has no PRG RAM; this fixes Alwa's Awakening: The 8-Bit Edition failing \ 
to boot (#93)
 - (SNES) Adjusted timing of PPU line rendering to occur 4 mclk cycles later; \ 
this fixes Lemmings having a flickering line at the top of the screen during \ 
gameplay
     - This worked correctly prior to v0.7.2 - it was broken by the CPU timing \ 
adjustment that fixed Rendering Ranger R2 from constantly freezing
 - (GB) Fixed the window X condition incorrectly being able to trigger when \ 
WX=255 and fine X scrolling is used (SCX % 8 != 0); this fixes corrupted \ 
graphics in Pocket Family GB 2
 - Fixed the emulator crashing if prescale factor is set so high that the \ 
upscaled frame size exceeds 8192x8192 in either dimension

Log message:
jgenesis: downgrade to 0.7.2

0.8.0 needs rust 1.80.1, which is not in pkgsrc HEAD yet

Log message:
emulators/jgenesis: update to 0.8.0

Highlights
 - Added support for 32X emulation (with a caveat regarding performance)
 - Significant audio quality improvements for Genesis / Mega Drive and SNES
 - Support for loading directly from .zip and .7z files
 - Lots of Genesis / Mega Drive bugfixes

32X Notes
 - All released 32X games plus Doom 32X Resurrection should be playable except \ 
for the 6 FMV games that require the Sega CD 32X combo
     - Doom 32X Resurrection features that require Sega CD do not currently work \ 
(CD-DA music, offloading some audio processing to the Sega CD 68000)
 - SH-2 CPU cache and basic SH-2 memory access timings are emulated, so overall \ 
SH-2 speed should be moderately accurate (though still faster than actual \ 
hardware in some cases)
 - SH-2 emulation is currently not optimized well - full-speed 32X emulation \ 
requires a CPU with decent single-core performance, and fast-forward speed will \ 
be very limited
     - For a comparison point, the Steam Deck CPU barely runs 32X at full speed \ 
from my testing
     - This will likely improve in a future release - the current implementation \ 
is pure interpreter because that was easiest to implement and it (surprisingly) \ 
still runs at full speed with a fast enough host CPU

New Features
 - Added support for loading directly from .zip and .7z compressed archives for \ 
every console except Sega CD (#91)
     - Archives containing multiple images are only partially supported; in this \ 
case the emulator will always load the first file with a recognized file \ 
extension
 - (SNES) Added an audio enhancement option for cubic Hermite interpolation \ 
between decoded ADPCM samples, which usually makes the audio sound sharper and \ 
less muffled
     - The difference is most noticeable in games that use low sample rate \ 
audio, such as the Donkey Kong Country trilogy
     - This is off by default because it pretty radically changes the sound in \ 
some games
 - (Genesis) Added an option to have no controller plugged into one or both of \ 
the controller ports, for games that behave differently based on the presence or \ 
absence of a controller (#113)
 - (NES) Added support for the UNROM 512 mapper (iNES mapper 30), a homebrew \ 
mapper used by a number of games including Black Box Challenge and Battle Kid 2 \ 
(#73 / #86)
     - This mapper unusually supports flash memory mapped as PRG \ 
"ROM"; for the games that have this (e.g. Black Box Challenge), it's \ 
emulated by persisting the entire current contents of PRG ROM to the save file \ 
whenever the game modifies itself
 - (GB) Added partial support for the Hudson HuC-3 mapper, used by Robopon and a \ 
few Japan-only games (#89)
     - "Partial" because the builtin speaker, the IR sensor, and parts \ 
of the event/alarm functionality are not emulated
 - GUI: Added a new "Open Using" menu option to open a file using a \ 
specific emulator core, rather than always choosing the core based on file \ 
extension (#121)
 - GUI: Added an option to explicitly set the UI theme to light or dark rather \ 
than always using the system default

Improvements
 - (Genesis) YM2612 DAC crossover distortion (aka the "ladder effect") \ 
is now emulated, which significantly improves music accuracy in a number of \ 
games; this is extremely noticeable in Streets of Rage, Streets of Rage 2, and \ 
After Burner II, among others
     - There is also a new option to disable ladder effect emulation, since the \ 
effect was less pronounced on later console models (and also because I think \ 
it's neat to hear how it affects the sound by toggling a checkbox)
 - (SMS/GG/Genesis) Replaced the PSG and YM2612 low-pass filters with much more \ 
aggressive ones; this should generally improve audio quality, and in some cases \ 
will remove erroneous buzzing/popping noises that were present before (e.g. in \ 
The Adventures of Batman & Robin) (#108)
 - Improved audio output behavior for all emulator backends, which should \ 
significantly reduce the likelihood of audio pops caused by audio buffer \ 
underflow
 - GUI: Added help text to most options menus
 - GUI: Improved performance when the main list table is large

Genesis / Mega Drive Fixes
 - Fixed the PSG's noise channel not oscillating when the period is set to 0 \ 
(which should behave the same as period of 1); this fixes missing high-frequency \ 
noise in Knuckles' Chaotix among other games
 - Fixed a degenerate case for performance when a game repeatedly writes the \ 
same value to specific VDP registers during active display, as After Burner \ 
Complete does
 - Fixed some 68000 CPU bugs discovered while working on 32X support
     - Implemented line 1010/1111 exception handling for when the 68000 executes \ 
an illegal opcode where the highest 4 bits are 1010 or 1111; Zaxxon's Motherbase \ 
2000 depends on this to boot
     - Fixed divide by zero exception handling pushing the wrong PC value onto \ 
the stack; After Burner Complete frequently divides by zero and depends on \ 
correctly handling the exception
     - Fixed the DIVS instruction finishing way too quickly in some cases where \ 
the division overflows a signed 16-bit result but the CPU doesn't detect the \ 
overflow early
 - Fixed an off-by-one error in determining whether to set the sprite overflow \ 
flag in the VDP status register; this fixes flickering sprite graphics in Alex \ 
Kidd in the Enchanted Castle (#125)
     - This was a regression introduced in v0.6.1 as part of the changes to get \ 
Overdrive 2's textured cube effect working
 - Adjusted how writes to the controller CTRL registers ($A10009 / $A1000B) \ 
affect the controller's TH line; this fixes controls not working properly in \ 
Trouble Shooter (#110)
 - Made it possible for games to read the VINT flag in the VDP status register \ 
as 1 slightly before the 68000 INT6 interrupt is raised; this fixes Tyrants: \ 
Fight Through Time and Ex-Mutants failing to boot (#127)
 - Implemented undocumented behavior regarding how the Z80 BIT instruction sets \ 
the S and P/V flags; this fixes missing audio in Ex-Mutants, which relies on \ 
this behavior in its audio driver code
 - Implemented approximate emulation of memory refresh delay
     - This is emulated by simply stalling the 68000 for 2 out of every 128 mclk \ 
cycles, unless it executes a very long instruction that doesn't access the bus \ 
mid-instruction (e.g. multiplication or division)
     - Memory refresh delay is not emulated in 32X mode because it seemed to \ 
break audio synchronization between the Genesis and 32X hardware in some games
 - Added SRAM mappings for several games that have SRAM in the cartridge but \ 
don't declare it in the cartridge header: NHL 96, Might and Magic, and Might and \ 
Magic III (#107 / #116 / #117)
 - Little-endian ROM images are now detected and byteswapped on load; this along \ 
with a custom ROM address mapping fixes Triple Play failing to boot (#112)
 - The emulator will now recognize the unconventionial region string \ 
"EUROPE" as meaning that the game only supports PAL/EU; this fixes \ 
Another World incorrectly defaulting to NTSC/US mode instead of PAL/EU (#122)
 - Unused bits in the Z80 BUSACK register ($A11100) now read approximate open \ 
bus instead of 0; this fixes Danny Sullivan's Indy Heat failing to boot (#120)
 - Improved VDP DMA timing; this fixes corrupted graphics in OutRunners (#118)
 - The vertical interrupt is now delayed by one 68000 instruction if a game \ 
enables vertical interrupts while a vertical interrupt is pending; this fixes \ 
Sesame Street: Counting Cafe failing to boot (#119)
 - The Z80 BUSACK line now changes immediately in response to bus arbiter \ 
register writes instead of waiting for the next Z80 instruction time slot; this \ 
fixes the Arkagis Revolution demo failing to boot (#123)
 - The emulator will now enable the bank-switching Super Street Fighter 2 mapper \ 
if the cartridge header declares the system as "SEGA DOA" in addition \ 
to the standard value of "SEGA SSF"; this fixes the Demons of Asteborg \ 
demo not working properly (#115)

Other Fixes
 - Fixed save state slots not working properly if the ROM filename contains \ 
multiple dots; before this fix, only one slot would ever be used
 - (Sega CD) When a game issues a CDD command while the drive is playing, the \ 
drive now continues to read one more sector before it changes behavior in \ 
response to the new command; this fixes Radical Rex crashing during the intro \ 
(#100)
 - (Sega CD) Writes to PRG RAM by the main CPU and the Z80 are now blocked \ 
unless the sub CPU is removed from the bus; this fixes Dungeon Explorer from \ 
crashing after the title screen (#104)
 - (Sega CD) The sub CPU is now halted if it accesses word RAM in 2M mode while \ 
word RAM is owned by the main CPU, and it remains halted until the main CPU \ 
transfers ownership back to the sub CPU. This fixes glitched graphics in Marko's \ 
Magic Football (#101)
 - (Sega CD) Various fixes to CDC register and DMA behavior; with this plus all \ 
of the above fixes, the emulator now fully passes the mcd-verificator test suite \ 
(#105)
 - (NES) The UxROM mapper code (iNES mapper 2) no longer assumes that the \ 
cartridge has no PRG RAM; this fixes Alwa's Awakening: The 8-Bit Edition failing \ 
to boot (#93)
 - (SNES) Adjusted timing of PPU line rendering to occur 4 mclk cycles later; \ 
this fixes Lemmings having a flickering line at the top of the screen during \ 
gameplay
     - This worked correctly prior to v0.7.2 - it was broken by the CPU timing \ 
adjustment that fixed Rendering Ranger R2 from constantly freezing
 - (GB) Fixed the window X condition incorrectly being able to trigger when \ 
WX=255 and fine X scrolling is used (SCX % 8 != 0); this fixes corrupted \ 
graphics in Pocket Family GB 2
 - Fixed the emulator crashing if prescale factor is set so high that the \ 
upscaled frame size exceeds 8192x8192 in either dimension