Oncew again, thanks a mil. When you get a free afternoon sometime, am taking you to lunch, give me the word when. Will have to bring the cpu with me, show ya what it does and things
I work about a mile from Disneyland, and I think your job is in Cypress if I remember correctly, so that isnt too far.
The RTS is mistaken but is NOt the RTI, as I use a routine at the very end to restore the 6502 registers, THEN it does the RTI. So it should have been JMP Restore6502Registers instead of the RTS. (thats what I get for typing in programs while asleep!)
The IER was from me being confused with the spec sheet.
I am running a 6502B at 4 MHz on this unit. I might switch to 65C02 but only if the price warrants it. At work, I figure several thousand 6502s but onlly 40 or so 65C02s floating around. (only Data East and the old poker game I did ages ago used the 65C02; Atari used the regular 6502 and kept using it for their sound systems)
The program length I am not super concerned at this time, for my board, I gave it the full 32K of program space. As I gain more experience from being rusty for some years, I can hack things down.
Email me sometime, I will send you the entire program. Anyone else who is interested I will email as well, my email is
Nightmaretony@yahoo.com.
and Garth, thanks once again, this thing is shaping up superbly now. I also got in contact with the original programmer oif the home Fireball pinball game, which I am trying to make my board work for; she is looking for the original code and will send me a copy if she finds it.
After this self test, my next thing is to crack out the source code to the Gottlieb pinball game. The BIOS is 8K with a 2K game eprom. I will post results here, same with the source for anyone who is interested. I am going specifically for the pinball machine HAUNTED HOSE because...its a good one to work with, and I have one in my living room