CPS2 - Super Street Fighter II X Grand Master Challenge (Japan 940223) - Reset when Selecting O. Dee Jay

jotego / jtcps

Capcom System 1/1.5/2 compatible verilog core for FPGA

GNU General Public License v3.0

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CPS2 - Super Street Fighter II X Grand Master Challenge (Japan 940223) - Reset when Selecting O. Dee Jay #110

Closed springah closed 2 years ago

springah commented 2 years ago

When playing any of the SSF2 Grand Master Challenge MRAs (except Phoenix Edition) and selecting Original Dee Jay as a character (highlight Dee Jay, press Light Punch, then Down Down Up Up Heavy Punch), the game resets as the match is about to begin.

Apparently a known issue, but unable to find it reported here.

Tuxosaurus commented 2 years ago

I can confirm, also with version 940311 and the freeplay hacks.

Here it is on video: https://drive.google.com/file/d/1TtECqYrBSW9Gn90MnyltJ9dHLhaM-E5B/view?usp=sharing

To reproduce, select DeeJay and then input Down Down Up Up + Light Punch (you'll hear him say "alright!")

springah commented 2 years ago

Confirmed working in Phoenix Edition.

jotego commented 2 years ago

Still happens in eee00ef after improving jtframe_romrq
Super Street Fighter II Turbo (World 940223).mra is affected too
Using SLOT3_OKLATCH=0, on the game ROM fails too
Making wire en_latch = op_fetch && en && (addr[23:16] = range[11:4]); in jtcps2_dec_ctrl.v had no effect
Making recover=0 in jtcps2_dtack had no effect

jotego commented 2 years ago

The decrypter address range was wrong. Fixed in bf5a34e