Commit Graph

9 Commits

Author SHA1 Message Date
David Banks
c0275ff059 Make commands 6-bits, add Special and TimerMode commands
Change-Id: I8862fba0cf4c1e54ee831a547bf3337bbe7cf973
2020-06-21 14:12:33 +01:00
David Banks
cfce5b1bd7 Z80/6809: rename clocks for consistency
Change-Id: Iecd3ac5ede39865efc58eaa9e45f5892a44acb82
2019-11-02 19:31:32 +00:00
David Banks
29438683b2 Z80: seperate top level for GODIL and old LX9
Change-Id: I1f339996037bb8a20afb7664877e0ed1d53d3868
2019-11-02 14:50:43 +00:00
David Banks
d9f53c1f09 Z80: refactor at top level to better support tristateable outputs
Change-Id: Ic4a55eb99c85ff2032079d8d12c7d7e44803b6e2
2019-11-02 13:26:00 +00:00
David Banks
643afe51d3 .xise project churn (of no consequence)
Change-Id: Ibfc0d1d89ca6e83bad34388a7557171650d89c0b
2019-10-27 19:21:26 +00:00
David Banks
b6abb6964a Z80: Update all builds to 8 comparators and 16KB code
Change-Id: I8adc986caab323de395301ba397f4c7874e50d49
2019-10-27 17:32:29 +00:00
David Banks
820ee65cee Z80: Add mode input to other icez80 builds build
Change-Id: I1b9130ec3835f08a4c3f429860aff6f09dc92d8c
2019-10-27 17:30:23 +00:00
David Banks
4c746994cb z80: major rewrite of memory access state machine
Change-Id: Icc5c7c991120ed155691c1e74517ac02f8ea2ada
2019-10-14 13:35:13 +01:00
David Banks
7954f86e41 Added build for a flipped version of Jason's level shifter, so USB comes out at the pin 1 end (better for Beeb)
Change-Id: Icd48522640507469b43ca3545fa1c46f88b0f0bb
2017-08-09 18:16:11 +01:00