Commit Graph

6 Commits

Author SHA1 Message Date
Zane Kaminski
fa08ca903a Register Apple address bus on PHI0 rising edge 2021-04-21 20:06:56 -04:00
Zane Kaminski
6e135d4305 Fixed bugs in new PLD stuff 2019-10-20 22:41:24 -04:00
Zane Kaminski
f471e04244 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
66fc09b402 Made AddrH high bit variable with mode input 2019-09-07 21:16:23 -04:00
Zane Kaminski
7ea556dd34 Clarified assignments 2019-09-06 17:26:42 -04:00
Zane Kaminski
f52c6e4781 Pipelined addition 2019-09-04 21:45:56 -04:00