* Split hc55516 core into separate cores/subclasses for hc55516 and hc55532 (new 'digital' implementation based on decap/die tracing) as well as mc3417 and mc3418 (old existing 'analog' implementation left alone) and hooked the hc55516 and mc3417 implementations to the appropriate hardware drivers. This should vastly improve CVSD sound quality in drivers that use the hc55516. [Lord Nightmare, Sean Riddle]
* Made Exidy's mouse trap use a timer to clock the mc3417 and update the state readable by the z80 rather than relying on the mc3417 to accept a clock parameter and update the z80 state via a callback. The timer implementation ensures proper synchronization and prevents missed clock transitions from the z80 side causing noise in the CVSD audio. [Lord Nightmare]
* Added a biquad-based 2nd order filter emulation for an audio stream (to go along with flt_rc 1st order filter emulation) and hooked it to Exidy's mouse trap (mc3417) and williams drivers (hc55516) following the original schematics. For hc55516 this is necessary as the original chip produces a very pronounced audible 16khz 'carrier' in its output audio even on the real chip, and these filters suppress this. This also happens to a lesser extent with the 8khz quieting waveform noise on both mc3417 and hc55516. [Lord Nightmare]
* Made Williams System 11 and s11_bg relative sound mixing more accurate to the original audio flow on the PCB itself. [Lord Nightmare]
* Switched Williams Joust 2 to use the s11_bg common sound device rather than its own implementation. [Lord Nightmare]
* fmtowns: add a SCSI card slot for the original models
- Add a slot device for the Model 1/2 dedicated SCSI slot
- Add a device for the FMT-121 SCSI Card
- Modify the I/O maps and machine configurations so the slot and the
integrated controller don't overlap
* - split off the handhelds that seem to be based around gpl162xx technology into their own file from generalplus_gpl_unknown.cpp to generalplus_gpl162xx_lcdtype.cpp
- identify unkunsp based on new information
* typo
- Hook up periodic and keyboard interrupts
- Implement keyboard and hook it up
- Render according to vram address and add basic cursor support
- Hook up bell sound
This adds support for the mini digital cassette recorder that can be
found inside a P2000t. This implementation is based on documentation
that can be found in https://github.com/p2000t/documentation.
In memory of NPM Jansen, who taught me all the magic of bits and bytes.
* Ported Cirrus Logic CS8900A Crystal LAN MAC emulation from VICE and hooked it up to Apple II card device.
* Adds Ethernet networking support for Apple IIgs.
* new WORKING machines
-----
Double Dance Mania: Supreme / Dance Supreme [Sean Riddle, David Haywood, Kamaal Brown]
Double Dance Mania: Mega 12 [Sean Riddle, David Haywood]
* new NOT WORKING
-----
My Arcade Wireless Video Game Station 200-in-1 (DGUN-2572) [Sean Riddle, David Haywood]
* removed include directory src/lib/netlist from various genie files to
avoid potential issues.
* Code using netlist should use #include "netlist/*".
* Updated includes.
* Fixed standalone makefile depend target to properly deal with relative
paths.
* Added akkaarrh to the ci target.
* Switched Travis CI to Ubuntu Focal.
* Allow ppc64le CI build to fail.
* Report CI status as soon as a job has failed or remaining jobs are allowed to fail.
Sound and other improvements to Sega G-80 games: [Aaron Giles, couriersud]
* Added netlist-based sound to Eliminator, Zektor, Space Fury, and Astro Blaster.
* Split the Sega Universal Sound Board and Speech Boards into their own separate files.
* Improved Universal Sound Board implementation for better accuracy in Star Trek and Tac/Scan.
* Wrote netlist-based backend for Universal Sound Board; currently disabled due to limitations in the system.
* Wrote netlist-based backend for Speech Board; currently disabled pending future sound system changes.
* Implemented wait states and the vector DRAW flag to help improve timing.
SP0250 Improvements: [Aaron Giles]
* Matched clock divider to real chip measurements.
* Fixed behavior when not fed enough data; addresses "gapping" in speech in Sega games.
* Implemented accurate LFR noise generator according to real chip measurements.
* Added pulse-width modulation DAC output mode for future consumption by netlist.
Netlist additions: [Aaron Giles]
* Added compile-time option to record nltool-compatible CSV files.
* Improved CD4020 implementation.
* Fixed CD4053 behavior.
* Added 74139 device.
* Added TL082 device.
8253 PIT changes: [Aaron Giles]
* Added explicit synchronization to all writes.
* Cleaned up some timing calculations to avoid double<->attotime conversions.
* sspeedr: new netlist audio implementation
Netlist-based audio implementation for sspeedr (Super Speed Race, 1979)
derived from Midway audio schematics, and based on that used for
280zzzap (280-ZZZAP) and lagunar (Laguna Racer) in the mw8080bw driver.
The Super Speed Race audio circuits are clearly derived from those games;
the biggest difference is the use of a linear feedback shift register
for noise generation.
* Updated netlist static solvers with recent netlist changes.
* new NOT WORKING machines
-----
PCP 8728 - 788 in 1 [David Shah]
unknown unSP based handheld [unknown]
* new NOT WORKING machines
------
Virtual Ping Pong (Protocol) [Sean Riddle, David Haywood]
My Arcade Gamer Mini 160-in-1 (DGUN-2953) [Sean Riddle, David Haywood]
Jonathan Gevaryahu