mirror of
https://github.com/holub/mame
synced 2025-04-19 15:11:37 +03:00
52f0acb25c
* OPL prep. Define FAMILY constant in register classes, and use that instead of template specialization for family-specific behaviors. Expand channel masks to 32 bits. Add is_keyon() helper. * Made FM channel and operator mapping more flexible. Operators are now owned by the engine and can be dynamically assigned to channels. Register classes now provide a mapping between a linear set of operators and channels. The register data array is now a regular array instead of a vector. * Minor change for consistency. * Introduce OPL registers and create a ymopl_engine. Add support for sustain-less notes and the OPL envelope clocks (which does not divide by 3). * Moved keycode calculations into register class. Removed unnecessary recalc in phase generator. Lined up OPL frequency, feedback, algorithm, and total level. * Implement key scale level and OPL-specific LFO and phase handling. * Create new YM3526 device based on new OPL. Fix keyon and sustain behaviors. * Fix weird OPL multiple values. Clean up and further document OPL LFO. * No busy flag on OPL, so no need to do the work. Add a right shift of 1 to the output stage to line up volume with old implementation. * More compact way of representing key scale level values. * Move the KSL bitswap into the registers since it's apparently fixed in OPLL and perhaps others. * Add support for ryhthm generation in OPL. Change compute_volume to take a phase value directly, and expose operator phase. * Fix OPL timers. * Start LFSR with a non-zero value to ensure it actually starts generating for OPL. * Fix silly bug in sustain logic for OPL. Fixes a lot of previously missing sounds. * Create OPL2 engine. Add waveform support for OPL2/3 waveforms. * Wire up YM3812 to the new OPL2 engine. * Reset OPL timers when the mask is written as well. * Manage rhythm key ons separately. Fixes Wardner awfulness. * Explicitly make channel logic handle 0, 2, or 4 operators rather than checking each one for null. Also simplify the combining logic for the 2 operator case. * Reverse bit order of LFSRs to make things a little simpler. Fix OPL LFSR so that it has its full 23-bit period. * Change outputs along the path to arrays rather than stereo items. This allows for four channel output. Also add a constant for the number of outputs to the register class. * Move status register bit definitions to the registers class. Generically support the IRQ bit. * Create shared helpers for FP encode/decode/roundtrip and use them throughout. Also update TMNT to use the FP decoder. * No need to clamp when using the roundtrip. * Clear the EOS flag when execute is turned off on ADPCM-B. Fix combine_status in YM2608 to ignore previously set flags. * Add missing note_select in base class. Don't add 1 to the OPL release rate. * Move Y8950 over to new OPL engine. * Remove old y8950, along with fmopl and ymdeltat * Add updates prior to status reads for ADPCM systems. * Add status_mask and irq_reset logic into the core. Clean up documentation on family-specific registers. Includes some temporary gross debugging stuff. * Made debugging less gross by giving operators and channels a reference back to their owner. * Fix status port address in OPL chips. Reduce ADPCM volume to match previous implementation. * Fix Y8950 ADPCM start. Return masked status properly. * Initial cut at OPLL mapping. * Add YM2413 support based on ymfm; renamed vrc7snd to ds1001; added YM2423 amd YMF281 variants as well. Instrument data is now loaded via external ROMs. Added 'depress' envelope support to the core engine. Fixed a number of issues in the ymopll_engine. Documented hard-coded values. Moved register clear into register-specific reset. * Add missing identifier. * Y8950 is OPL not OPL2. * Some documentation cleanup. Consistency fixes in the register classes. * Consolidate large comments. Add support for delayed modulators for OPL. Broke out 2-op and 4-op cases to help simplify logic. Fixed overflow handling in fp encoding. * Fix silly bug. * Changed operator assignment mechanism to be more readable. Added prepare method to be called at the start of sound update. Added ALL_CHANNELS constant to register files. Updated all consumers to call prepare and use constants where applicable. * Move YMF262 and YMF278B to use new FM engine for OPL3/4. Fix several issues in OPL3 logic, which now seems to work ok. * Minor fixes. More documentation. * Fix MSVC build. * Add caching of data to prepare methods to improve performance. Moved non-register decoding logic out of the .h file and into .cpp file. Move phase_step calculation into register class. * More notes. Removed keycode from cache. Split 2/4-operator outputs into separate functions. Changed OPN/OPL to use templates for variants. Added channel/operator_offset helpers. * Fairly substantial overhaul of register interface. Register interface is now stateless and contains family-specific state. Channel and operator accessors are prefixed by ch_/op_ now and require an offset to the specific channel or operator. Moved LFO/noise generation into register class, along with keyon logging. * Add noise back to OPL/OPLL * Added early-out for low envelope. Moved waveform logic out into family-specific code. General clean up of ordering. Reduced family base class to minimal needed. * More aggressively track active channels to help performance. * Use only summing outputs for consideration of active channels. Centralize the logic of determined 4-op vs 2-op. * More conservative channel deactivation. * Add helper to compute the sample rate and use it in all implementations. Remove unneeded chnum/opnum members. * Fix error in YM2612 that caused crashes. * Switching parameters and locals to 32-bit values gives a noticeable performance boost. Checkpoint 1. * More moving to 32-bit values. Checkpoint 2. * Last of the 32-bit promotions. * Ensure SSG inverted flag is only tested on systems with SSG support in the innermost loops. * Make most constants 32-bit as well. Expose some constants via the engine class. * Expand waveforms ahead of time. Optimize the attenuation lookup a bit. * If volume is low, don't erase output, just leave it alone. Fixes missing sound in raimais. * Replace a couple of magic numbers with constants. * Normalization of FM engine usage across consumers. * Removed explicit external prepare() call; this logic is now automatically done after writes and periodically. Changed OPL/OPLL to use native formats for block/fnum. Fixed waveform generation. Fixed PM and AM depth on OPL/OPLL. * Cache multiple value. Clean up output handling a bit. * Move multiple caching ahead of phase step caching. * Fully split OPLL from OPL. Remove many hacks now that OPLL registers can have state. Created shared helpers between OPL/OPLL. Removed more aggressive channel disables since it was not rhythm friendly and didn't really buy much. * Remove old comment * Remove bad write in OPL mode case. Fixes fsoccer intro. Only call set_reset_status() once per mode call. * Remove FM output boost in YM2608/2610. Not sure why I did that. Better matches previous volume now. * Make AM/PM logging less confusing. * Let's actually set DYNAMIC_OPS properly, eh? * Improved logging. * Comment cleanups. Add constant for dynamic phase. Pre-shift sustain level. Srcclean. * Fix memory regions on YM2608 games. * Clean up ymadpcm to line up with recent ymfm changes. * y8950: Reshuffle read/write handlers. Rename them to less confusing names. * ym2413: Reshuffle read/write handlers. Rename them to less confusing names. * ym3526/ym3812: Reshuffle read/write handlers. Rename them to less confusing names. * ymf262: Match read/write details to datasheet and previous tests. * Use a constexpr function instead of macro for packing operator numbers. Pre-compute OPM LFO waveforms. * Generate OPL4 engine to support the proper clock divider and new flags. Update YMF278B to use FM timers and status rather than replicating the logic. * Fix 4-operator enable on new OPL4 instance. * Fix FM downsampling and adjust balance in YM278B. |
||
|---|---|---|
| .. | ||
| build | ||
| font | ||
| minimaws | ||
| resources | ||
| src | ||
| target | ||
| xslt | ||
| extlib.lua | ||
| genie.lua | ||
| toolchain.lua | ||