Zane Kaminski
b899bfc4ad
Sorta works
2021-04-18 06:01:08 -04:00
Zane Kaminski
bc9fb27129
Make apple boot
...
Apple boots but SDRAM not working. Register R/W/increment works
2021-04-18 03:54:45 -04:00
Zane Kaminski
c4844b9646
idk
2021-04-11 15:39:19 -04:00
Zane Kaminski
b0b8b0dc6c
Works?
2021-04-03 03:44:42 -04:00
Zane Kaminski
9eec9bf7b9
ugh
2021-03-19 16:38:48 -04:00
Zane Kaminski
116abb1a6f
before remove UFM
2021-03-19 14:23:33 -04:00
Zane Kaminski
52b3716342
hmm
2021-03-19 06:59:22 -04:00
Zane Kaminski
9ac2ba97ae
better
2021-03-19 06:45:31 -04:00
Zane Kaminski
3816ecd0a1
ugh
2021-03-19 02:56:20 -04:00
Zane Kaminski
e5da11855d
Remove old CPLD stuff
2021-03-15 13:40:41 -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
a8eb7940fe
Recompiled just to be sure
2019-10-13 21:18:41 -04:00
Zane Kaminski
7f581f6ba0
24-bit counter, CAS fixed
2019-10-11 20:34:51 -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
Zane Kaminski
215f5ca2c6
Clarifications and bugfixes, will try again
2019-09-02 01:42:07 -04:00
Zane Kaminski
6b2378f99a
1MB CPLD design seems to work, fails Apple BIST
2019-09-01 21:18:44 -04:00
Zane Kaminski
396cc3c03c
CPLD firmware compiles
2019-08-31 22:55:04 -04:00