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mirror of https://github.com/TomHarte/CLK.git synced 2026-04-24 05:18:36 +00:00
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13,191 Commits 4 Branches 146 Tags
fe79a1231d9a8d898ebdc42212b39af4fbe1cc2f
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1367 Commits

Author SHA1 Message Date
Thomas Harte fe79a1231d Add extra cycle to immediate decimal arithmetic. 2025-10-24 21:39:14 -04:00
Thomas Harte 76a5872d17 Install extra cycle for 65c02 decimal arithmetic. 2025-10-24 21:24:05 -04:00
Thomas Harte 0d72c75e15 Give modify stalls to fast NOPs. 2025-10-24 16:51:07 -04:00
Thomas Harte 2e0e89c494 Implement fast modify path; fix more NOPs. 2025-10-24 16:43:57 -04:00
Thomas Harte 7d6b7a5874 Adjust 0x?b NOPs. 2025-10-24 15:57:54 -04:00
Thomas Harte 48f8ddf53a 65c02: make AbsoluteIndexed modify cycle harmless. 2025-10-24 15:55:45 -04:00
Thomas Harte 9aae07b737 Implement zero indirect addressing mode. 2025-10-24 15:53:55 -04:00
Thomas Harte d7abdc8017 Transfer ownership of final PC increment, to accomodate 65c02 misreads. 2025-10-24 15:49:17 -04:00
Thomas Harte cb81156835 65c02: distinguish 'fast' NOPs from regular. 2025-10-24 13:52:32 -04:00
Thomas Harte 1fd8d94e2e Import further NOPs. 2025-10-24 13:33:10 -04:00
Thomas Harte e4fe127444 Fix 65c02 modify cycles: read/read/write, not read/write/write. 2025-10-24 13:30:10 -04:00
Thomas Harte aeabd5f113 Patch in TSB and TRB. 2025-10-24 12:33:13 -04:00
Thomas Harte 58f7d4065c 65c02: support single-cycle NOP. 2025-10-24 12:29:53 -04:00
Thomas Harte 60f25a3ba4 Add some of the easier overrides. 2025-10-24 12:21:53 -04:00
Thomas Harte d267571dc6 Add spot to fill in Synertek mappings. 2025-10-24 12:13:10 -04:00
Thomas Harte 5dc00a2092 Update #undef list. 2025-10-24 12:00:22 -04:00
Thomas Harte b20d489bf0 Remove SHA/SHX/etc. 2025-10-24 11:58:55 -04:00
Thomas Harte df39870587 Factor out index decision. 2025-10-24 11:53:55 -04:00
Thomas Harte f742eab4be Reduce to a generic case. 2025-10-23 21:54:50 -04:00
Thomas Harte e9c8c61dcf Reformulate to be slightly more conditional, but substantially deduplicate code. 2025-10-23 21:52:31 -04:00
Thomas Harte e5f09002e9 Extract bit operators. 2025-10-23 20:47:55 -04:00
Thomas Harte d42f005e17 Improve consistency. 2025-10-23 20:43:15 -04:00
Thomas Harte 24e060abee Elide ADC logic. 2025-10-23 19:54:07 -04:00
Thomas Harte 8b6d763442 Reduce duplication within ARR. 2025-10-23 19:42:36 -04:00
Thomas Harte e239745f63 Fix typo. 2025-10-23 19:35:40 -04:00
Thomas Harte cfef2b4e19 Eliminate 16-bit arithmetic from SBX. 2025-10-23 19:32:50 -04:00
Thomas Harte cf93c39881 Pull out overflow logic, remove 16-bit arithmetic from ADC. 2025-10-23 18:23:09 -04:00
Thomas Harte 5d223bce4c Pull out and simplify compare. 2025-10-23 17:47:15 -04:00
Thomas Harte b454ebc1c9 Extricate further operations. 2025-10-23 17:41:13 -04:00
Thomas Harte 7cf9910cae Pull ADC, SBC and some others out. 
This resolves the wacky control flow somewhat.
 2025-10-23 17:15:21 -04:00
Thomas Harte 79ab1d8cb1 Implement final SHA. 2025-10-23 13:42:23 -04:00
Thomas Harte 7cd20f5d12 Add all absolute-indexed oddities. 2025-10-23 13:39:03 -04:00
Thomas Harte 5396d751e1 Support SHX and a SHA. 2025-10-23 13:27:55 -04:00
Thomas Harte d23e715650 Decision: these five have weird addressing, so that counts as weird addressing modes. 2025-10-23 13:13:01 -04:00
Thomas Harte 0791bce338 Fix everything other than the oddball SHA/SHX/SHY/SHS. 2025-10-22 22:12:32 -04:00
Thomas Harte 2bcb74072a Add trqnsfers, correct a STA. 2025-10-22 21:20:11 -04:00
Thomas Harte c5f2f17f33 Further populate perform. 
First failing test is now 0x8a.
 2025-10-22 21:13:57 -04:00
Thomas Harte 62a8bf4261 Add missing RTS cycle. 2025-10-22 17:56:11 -04:00
Thomas Harte ebda18b44e Implement the two JMPs. 2025-10-22 17:52:55 -04:00
Thomas Harte a8f41b9017 Implement RTI and RTS. 2025-10-22 17:48:19 -04:00
Thomas Harte 410c19a7da Fix pull. 2025-10-22 17:43:08 -04:00
Thomas Harte a346e2e04b Transcribe bit logic. 2025-10-22 17:40:03 -04:00
Thomas Harte 2d114b6677 Implement JSR. 2025-10-22 17:37:01 -04:00
Thomas Harte 02e74ca1f4 Add absolute-indexed addressing. 2025-10-22 17:18:54 -04:00
Thomas Harte 69122cdec4 Swing at zero-indexed addressing. 2025-10-22 17:12:23 -04:00
Thomas Harte d730168631 Remove dead label. 2025-10-22 13:30:24 -04:00
Thomas Harte 2f210ebe3b Fix IndexedIndirect/IndirectIndexed confusion, proceed to test 0x14. 2025-10-22 13:29:45 -04:00
Thomas Harte 693b53baa2 Proceed through absolute addressing to test 0x10. 2025-10-22 13:05:46 -04:00
Thomas Harte 77554879a5 Add missing 0x?e group. 2025-10-22 13:00:36 -04:00
Thomas Harte 45363922b5 Adds rolls and shifts, and zero-page addressing. 2025-10-22 12:56:07 -04:00