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ASSUALT FORCE 3D w/Super Charger cartridge


Gunstar

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We have several people making flash bank switching cartridges. Something I would be interested in is to also have a integer multiply/divide processor circuit in with the bank switching. Best I can do with a table driven multiply routine is around 50 cycles, more if I have to do some bankswitching. I guess these supercharger carts can do it about 10 cycles. I am not sure how many bytes can be used as registers in the $D5xx area. Maybe building like have $D500-$D503 selects bank, $D504-$D507 are these match registers. Doing 3D and Trigonmetric calculations is something the 6502 is weak at without tables or a co-processor. Floating point is another possibility.

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  • 12 years later...

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