Commit Graph

6 Commits

Author SHA1 Message Date
Zane Kaminski
5437b524cc Register Apple address bus on PHI0 rising edge 2021-04-21 20:06:56 -04:00
Zane Kaminski
3e06d30382 Fixed bugs in new PLD stuff 2019-10-20 22:41:24 -04:00
Zane Kaminski
79dd794f45 New PLD revision
For write operations, register data is latched and CAS signal becomes in the middle of S6, 70ns before the end of PHI0. This gives more write data setup time, which may be needed on the Apple II with the 1 MHz 6502.
2019-10-18 15:07:38 -04:00
Zane Kaminski
2382fdfda6 Made AddrH high bit variable with mode input 2019-09-07 21:16:23 -04:00
Zane Kaminski
b0a001aa58 Clarified assignments 2019-09-06 17:26:42 -04:00
Zane Kaminski
47a4c012d7 Pipelined addition 2019-09-04 21:45:56 -04:00