There is a quirk of the tilegen chip that causes this glitch not to occur on real hardware, but we can't be sure what it is without testing
Much easier to just patch all the Scud Race ROM sets
Star Wars Trilogy will sometimes write to a JTAG register and then read it back to verify it, but this doesn't work correctly with Supermodel's current JTAG implementation; it will try again and never succeed, getting stuck in an infinite loop. This patch stops the code from branching up and trying the write/read cycle again, allowing the subroutine to continue normally.
We need to implement shift register widths correctly for each JTAG device (Mercury, Venus, Earth, etc.) for the unpatched code to work properly... right now Supermodel implements one JTAG device with a huge 197-bit data shift register
As requested by Bart; Ian's last SourceForge commit.
Also, purely to appease my OCD, a change I forgot on my last 'Games.xml' PR that really shouldn't bother me as much as it does.
Virtua Striker 2 '99.1 (Step 1.5, Export, USA, Revision B)
Virtua Striker 2 '99.1 (Step 1.5, Japan, Revision B)
Thanks to Brian Troha and The Dumping Union
-Separate each possible boards (wheel, joystick, skipad, billboard).
-Defined a Driveboard type in Games.xml for each games.
-Due to the refactoring, Driveboard Savestates have changed (a common base data + a specific board data are saved).
-Backwards compatibility with previous save states is maintained.
-Driveboard rom section is no longer required anymore. This disables Driveboard emulation in case the rom is not found.
-Added Billboard emulation (vf3, vs2, fvipers2, von2). 7 segments and lamps Outputs are redirected to Supermodel outputs.
-Changes project to C++ 17 standard.
New clones
-Sega Bass Fishing Deluxe (USA) (Brian Troha)
-Dirt Devils (USA, Revision A) (Brian Troha)
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Note/Warning:
This will match future Mame 0.228 changes.
Please Check/Edit carefully all your rom set because there are many changes (e.g. set name).
Thinking of delete or rename your nvram, or restart from the start.
- Real3D PCI ID can be specified in Games.xml for exceptions that require it.
- Real3D status bit timing specified in Games.xml for exceptions that require it.
