Thomas Harte
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bfa551ec08
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Correct ADDX and SUBX listings.
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2022-04-19 16:21:40 -04:00 |
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Thomas Harte
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740e564bc7
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Improve validation, add all ADDs.
It now looks like probably the ADDXs in the JSON are incorrect.
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2022-04-19 14:45:15 -04:00 |
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Thomas Harte
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1f585d67b6
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ADDA: correct decoding, add validation.
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2022-04-19 14:43:01 -04:00 |
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Thomas Harte
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5b22e94a4b
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Map invalid reg+mode combinations to AddressingMode::None; add validation of ADDs and decoding of ADDX.
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2022-04-19 14:36:36 -04:00 |
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Thomas Harte
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7749aef6b6
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Improve const correctness.
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2022-04-19 14:35:40 -04:00 |
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Thomas Harte
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5de8fb0d08
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Disallow four illegal NBCD addressing modes.
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2022-04-19 09:59:02 -04:00 |
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Thomas Harte
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19f7335926
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Add post validation step.
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2022-04-19 09:44:02 -04:00 |
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Thomas Harte
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9b61830a55
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Add ADD.b as a note to self that .q decoding is also required.
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2022-04-19 08:44:44 -04:00 |
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Thomas Harte
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99f4cd867d
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Decode the two EXTs.
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2022-04-19 08:42:17 -04:00 |
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Thomas Harte
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f29fec33a2
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Eliminate mismatches due to unsupported addressing modes.
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2022-04-19 08:37:53 -04:00 |
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Thomas Harte
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93fe3459fd
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The quick value won't always fit in reg; turf the problem elsewhere.
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2022-04-19 08:37:35 -04:00 |
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Thomas Harte
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1abd3bd7f3
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Decode SWAP.
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2022-04-19 08:37:13 -04:00 |
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Thomas Harte
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5509f20025
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Fix MOVEfrom/toSR and NBCD listings.
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2022-04-19 08:07:34 -04:00 |
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Thomas Harte
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fc4fd41be4
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Reorder from most specific to least.
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2022-04-19 08:00:52 -04:00 |
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Thomas Harte
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3ffca20001
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Uncover various discrepancies with NBCD.
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2022-04-19 07:15:54 -04:00 |
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Thomas Harte
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7c29305788
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Test all ABCDs.
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2022-04-18 20:00:39 -04:00 |
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Thomas Harte
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41fb18e573
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Add 68k decoder to SDL build.
... and therefore to automated compilation testing.
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2022-04-18 14:43:41 -04:00 |
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Thomas Harte
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e4c6251ef5
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Express the BSR/Bcc.l test properly.
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2022-04-18 14:42:31 -04:00 |
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Thomas Harte
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7aa250eaf7
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Advances to hitting the same absent/present mapping as the old decoder.
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2022-04-18 14:41:26 -04:00 |
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Thomas Harte
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ff380b686a
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Decode MOVEq.
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2022-04-18 09:12:45 -04:00 |
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Thomas Harte
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d2452f4b68
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Fix SUBQ ExtendedOperation mappings.
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2022-04-18 09:08:49 -04:00 |
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Thomas Harte
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deb9c32a38
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Add missing Sccs.
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2022-04-18 09:04:17 -04:00 |
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Thomas Harte
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440f45b996
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Attempt decoding and disambiguation of Scc, DBcc, Bcc and BSR.
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2022-04-18 08:55:46 -04:00 |
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Thomas Harte
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7d64c4ec66
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Add STOP.
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2022-04-18 08:29:10 -04:00 |
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Thomas Harte
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7fe0d530c1
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Add a decoder for TRAP.
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2022-04-18 08:05:33 -04:00 |
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Thomas Harte
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c944767554
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Better document decoding patterns, add LEA and CHK.
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2022-04-18 08:00:43 -04:00 |
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Thomas Harte
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fde5a1c507
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Ensure ADDI, SUBI, etc, provide an operation.
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2022-04-18 07:42:30 -04:00 |
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Thomas Harte
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0fbfb41fa8
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Expand on none-matching text.
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2022-04-18 07:42:14 -04:00 |
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Thomas Harte
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1991ed0804
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Introduce failing [partial-]test of new 68000 decoder.
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2022-04-18 07:23:25 -04:00 |
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Thomas Harte
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e782b92a80
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Add exposition.
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2022-04-17 19:56:39 -04:00 |
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Thomas Harte
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07635ea2be
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Add register names, Q values.
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2022-04-17 19:46:21 -04:00 |
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Thomas Harte
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fb3de9ce9d
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Merge pull request #1023 from TomHarte/AppleIIAutostart
Undo bad guess at initial switch state.
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2022-04-17 17:07:56 -04:00 |
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Thomas Harte
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efff91ea3d
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Undo bad guess at initial switch state.
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2022-04-17 17:03:05 -04:00 |
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Thomas Harte
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1916bd3bd0
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Import a first effort at listing all 68000 instruction specs.
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2022-04-17 07:57:59 -04:00 |
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Thomas Harte
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4eb752b000
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Even out tabs.
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2022-04-15 20:41:39 -04:00 |
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Thomas Harte
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bfb29a58f3
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Take another crack at neatness; make LEA overt.
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2022-04-15 20:33:59 -04:00 |
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Thomas Harte
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f86e455a87
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Advance permissively through the 4xxx page to LEA.
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2022-04-15 16:01:33 -04:00 |
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Thomas Harte
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faa35fe9fc
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Decode MOVE and the fixed 0x4xxx set.
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2022-04-15 15:40:31 -04:00 |
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Thomas Harte
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89b8b59658
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Ostensibly completes the 0 line.
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2022-04-15 15:33:54 -04:00 |
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Thomas Harte
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de55a1adc4
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Require a model for decoding; shift a bunch of immediates into ExtendedOperation.
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2022-04-15 09:40:37 -04:00 |
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Thomas Harte
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d1613025ee
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For now, assume the .q actions can be handled inside Preinstruction.
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2022-04-13 09:29:12 -04:00 |
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Thomas Harte
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cc4431c409
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Expand decode to accept a wider array of operations, and then funnel them down.
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2022-04-12 16:17:30 -04:00 |
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Thomas Harte
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3d5986c55d
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Some minor style changes, plus I think I've talked myself into an expanded Operation-tracking enum. Probably.
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2022-04-12 14:54:11 -04:00 |
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Thomas Harte
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9aeb6ee532
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Formally prepare for one- and two-operand instructions.
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2022-04-12 09:14:46 -04:00 |
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Thomas Harte
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e7f6cc598d
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Make first attempt to complete broad phase of decoding.
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2022-04-12 09:08:46 -04:00 |
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Thomas Harte
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cd465dd121
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Decode page E.
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2022-04-12 09:04:40 -04:00 |
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Thomas Harte
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174b48a14a
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Populate lines 9 and D.
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2022-04-12 08:57:40 -04:00 |
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Thomas Harte
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bca18e7aba
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Fill in line decoders for 5, 6 and 7.
This leaves 9, D and E to go.
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2022-04-12 08:44:32 -04:00 |
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Thomas Harte
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17e761d6c6
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Add enough code to pages 0–3 to shift problem to decode().
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2022-04-12 08:36:44 -04:00 |
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Thomas Harte
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c50556dde4
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Create empty line decoders.
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2022-04-12 08:16:29 -04:00 |
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