9 Commits

Author SHA1 Message Date
jackyangantelope
5a148e2b2a Update sys 2025-12-09 23:08:41 +08:00
Alan Steremberg
9703377580 new sys, release (#20) 2024-05-26 12:24:13 +08:00
Ace9921
724f34bacd Adjust 60Hz-adjusted timings, update framework 2022-05-26 21:38:04 -04:00
Ace9921
76b97e9979 Complete core redesign (#17)
-New model built using Time Pilot '84 as a base
-Increase base clock to match actual frequencies of the PCB; fixes slower-than-normal game speed from the original implementation
-Refactor all clocks derived from the base clock
-Add implementation of the Konami 501 custom chip from Gyruss for more accurate handling of the Z80 and its data I/O
-Adjust video timings to match the original (thank you to Artemio Urbina for assisting with this)
-Adjust VBlank area; fixes graphical garbage outside the playfield
-Change aspect ratio to square pixels as per the PCB's 6.144MHz pixel clock
-Improve sprite rendering accuracy; fixes graphical errors in the sprite layer and correctly replicates a sprite discolration bug at the bottom of the screen present on the original PCB
-Replace existing YM2149/AY-3-8910 module with JT49 from Gyruss; fixes the incorrect volume scale from the previous releases
-Tune the switchable low-pass filters to better match the frequency response of the original PCB (thank you to Artemio Urbina for assisting with this)
-Increase audio volume
-Add high score auto-save support (JimmyStones)
-Update framework
2021-10-25 19:00:12 +08:00
JimmyStones
7f6659639a Add highscore save/load and pause, update sys 2021-03-17 21:42:31 +00:00
Alan Steremberg
c1ae9c4205 new sys, new release (#13)
* new sys

* new release
2021-01-19 03:23:18 +08:00
Alan Steremberg
637ecb6f3b new sys 2020-01-13 15:51:56 -08:00
Alan Steremberg
98262af4a6 updated to latest sys 2019-12-04 11:35:34 -08:00
Alan Steremberg
c0ac39dd21 new scalar, dips, mame keys 2019-04-26 15:40:24 -07:00