Program rom patches for Armed Police Batrider (B version only) that add some convenience and functionality.
This is pretty much an adaptation of some of the @zakk4223 's Quality-of-life patches for Battle Garegga, but modified to work with Batrider. Thanks a lot for your research and previous work on it! 🍻
Includes:
- Rank multiplier value is always set as $100 (easier) at startup, in the same way as pressing Start button on the Test menu. No matter if Test is enabled or not.
- Rank display. Real time display of current game rank.
- Rank change display: Per-frame display of rank change during the frame. This excludes per-frame rank adjustments and any rank changes due to shooting (normal and option). (STILL NOT WORKING)
- Rank percentage display.
- Per frame rank display.
Rank and rank change are shown in hexadecimal. Per frame is shown in decimal.
NOTE: Stage Edit dip switch must be ON for rank display to appear.
Extract any B version rom set (i.e. batrider, batrideru, batriderc, batriderj or batriderk). Use your favorite IPS patch applier to patch prg0_____.u22 and prg1b.u23 using the respective IPS files in this repo. prg0.u22 could have different name for each supported rom set, that's why I put underscores on it.
Mame will complain about incorrect rom checksums. You can ignore this and/or may need to launch the game directly as an argument e.g. ./mame batriderj
patch.s contains the assembly source to recreate this patch. Use http://john.ccac.rwth-aachen.de:8000/as/ and https://www.mankier.com/1/p2bin to assemble it. You must combine prg0_____.u22 and prg1b.u23 into a single interleaved binary. See build.sh for exact command line arguments for various tools.