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author 0kmg <9137159+0kmg@users.noreply.github.com>2021-10-11 04:49:37 -0800
committer GitHub <noreply@github.com>2021-10-11 23:49:37 +1100
commit32574013d259d40e4cc1137e7d498e60493babac (patch)
treea0069d2235f302f25af770c97c4e825db73cb80f /src/frontend/mame/ui/selector.cpp
parentc4979ef8d1daa847af76aa8f828f3422c16ab791 (diff)
bus/nes: Improved support for various VRC clone boards. (#8687)
* Expanded VRC4 CHR bank regs to 9-bit. This functionality is verified on Konami VRC4 hardware as well but is only used by clones (World Hero here). * Removed board for World Hero. Its VRC4 clone chip is under a glop top but is thought to be identical to Konami's. * Reimplemented TF1201 (Lethal Weapon) as a VRC4 subclass. Its clone chip is only known to differ by the IRQ reload bit, which it ignores. * Reimplemented Shui Guan Pipe as a VRC4 subclass. Its clone chip has different PRG banking but is otherwise standard. Software list items promoted to working (nes.xml) --------------------------------------- Gimmick! (Asia, pirate) Lethal Weapon (China) World Hero (Asia) World Hero (Asia, alt)
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