DarrenF
Well-known member
Interest Check: Ikari Warriors (JAMMA) High Score Save Kit
I've modded my Ikari (JAMMA version) to save high scores.
I plan on sharing the modified ROMs and instructions on which RAM to replace with NVRAM, once I've finalized and cleaned things up a bit--and perhaps added more features. I'll also be selling a kit (EPROMs + NVRAM + socket) similar to how Matt at scoresaves.com offers his. If you're not familiar with this type of kit, it's not a "plug & play" solution, like the Braze kits, but it does involve removing one RAM chip and soldering in a socket. The EPROMs that will need swapping are already socketed.
In any case, I'm trying to gauge interest, to determine if it's worthwhile making up the "kits" or not.
Existing Features:
- saves all 10 high scores and the 5-letter initial entries.
- HS table can be reset to defaults holding down the PL2 start during power-up.
Potential Features: (these don't exist yet, but I may be able to get them done)
- fix bug (SNK, not mine...) in the JAMMA version that uses the wrong button for PL2 high score initial entry.
- dipswitch-selectable freeplay
Conceptually, I could do these EPROM mods for the non-JAMMA version too, but... I do not have a non-JAMMA version of Ikari, so there's no way for me to figure out which RAM IC needs to be replaced with NVRAM. So at present, I'm only working on the JAMMA VERSION OF IKARI WARRIORS. [If there's a lot of interest in the non-JAMMA version, I may be able to work something out. If someone with a non-JAMMA PCB, an EPROM programmer, and some time can help...]
DarrenF
PS - Oh, and once this is done, it should be pretty straightforward to apply the same concept to create a HSS kit for Victory Road, too. I have it already, and it's nearly identical to JAMMA Ikari.
I've modded my Ikari (JAMMA version) to save high scores.
I plan on sharing the modified ROMs and instructions on which RAM to replace with NVRAM, once I've finalized and cleaned things up a bit--and perhaps added more features. I'll also be selling a kit (EPROMs + NVRAM + socket) similar to how Matt at scoresaves.com offers his. If you're not familiar with this type of kit, it's not a "plug & play" solution, like the Braze kits, but it does involve removing one RAM chip and soldering in a socket. The EPROMs that will need swapping are already socketed.
In any case, I'm trying to gauge interest, to determine if it's worthwhile making up the "kits" or not.
Existing Features:
- saves all 10 high scores and the 5-letter initial entries.
- HS table can be reset to defaults holding down the PL2 start during power-up.
Potential Features: (these don't exist yet, but I may be able to get them done)
- fix bug (SNK, not mine...) in the JAMMA version that uses the wrong button for PL2 high score initial entry.
- dipswitch-selectable freeplay
Conceptually, I could do these EPROM mods for the non-JAMMA version too, but... I do not have a non-JAMMA version of Ikari, so there's no way for me to figure out which RAM IC needs to be replaced with NVRAM. So at present, I'm only working on the JAMMA VERSION OF IKARI WARRIORS. [If there's a lot of interest in the non-JAMMA version, I may be able to work something out. If someone with a non-JAMMA PCB, an EPROM programmer, and some time can help...]
DarrenF
PS - Oh, and once this is done, it should be pretty straightforward to apply the same concept to create a HSS kit for Victory Road, too. I have it already, and it's nearly identical to JAMMA Ikari.
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