59 Commits

Author	SHA1	Message	Date
Thomas Harte	bf9fc0ae96	Correct decoding of BSR.	2022-04-21 16:24:34 -04:00
Thomas Harte	a8a1a74b79	Correct BSRb quick value.	2022-04-21 16:13:06 -04:00
Thomas Harte	549e440f7c	Add 'quick' decoding and testing.	2022-04-21 16:05:00 -04:00
Thomas Harte	45c02c31f8	Add MOVEM exclusions.	2022-04-21 15:47:34 -04:00
Thomas Harte	b6b092d124	Add tests, exclusions for rest of shift/roll group.	2022-04-21 11:26:56 -04:00
Thomas Harte	3af93ada6f	Test and correct Bcc, BSR, CLR, NEGX, NEG.	2022-04-20 20:19:56 -04:00
Thomas Harte	dc16928f74	Add appropriate exclusions for JSR, JMP, Scc.	2022-04-20 16:56:26 -04:00
Thomas Harte	80ff146620	Add CMP, CMPA and TST tests and exclusions.	2022-04-20 16:29:45 -04:00
Thomas Harte	d4fe9d8166	Complete BTST/etc exclusions.	2022-04-20 16:16:24 -04:00
Thomas Harte	85a0af03c1	Import more standard JSON; start validating.	2022-04-20 09:17:00 -04:00
Thomas Harte	dc43f5605b	Give MOVEPs precedence.	2022-04-20 08:40:56 -04:00
Thomas Harte	fab064641f	Add Move[to/from][SR/CCR/USP] tests, correct decodings.	2022-04-20 07:59:13 -04:00
Thomas Harte	316e9681cc	Weed out false PEAs.	2022-04-19 20:34:08 -04:00
Thomas Harte	4181313cc6	Correct decoding of SWAP.	2022-04-19 20:28:00 -04:00
Thomas Harte	6aabc5e7b0	Test LEA, PEA, add name for MOVEq.	2022-04-19 19:45:51 -04:00
Thomas Harte	343a8e0192	Resolve wrong-headed mapping of LEA to MOVEAl.	2022-04-19 19:36:21 -04:00
Thomas Harte	ef87d09cfa	Clear up MOVEs, fail on MOVEAs.	2022-04-19 17:13:23 -04:00
Thomas Harte	d21c67f237	Don't permit byte move from address register.	2022-04-19 16:49:26 -04:00
Thomas Harte	de40fed248	Test MOVEs and add operand validation.	2022-04-19 16:31:03 -04:00
Thomas Harte	76d7e0e1f8	Test and correct SUBs.	2022-04-19 16:27:20 -04:00
Thomas Harte	1f585d67b6	ADDA: correct decoding, add validation.	2022-04-19 14:43:01 -04:00
Thomas Harte	5b22e94a4b	Map invalid reg+mode combinations to AddressingMode::None; add validation of ADDs and decoding of ADDX.	2022-04-19 14:36:36 -04:00
Thomas Harte	7749aef6b6	Improve const correctness.	2022-04-19 14:35:40 -04:00
Thomas Harte	5de8fb0d08	Disallow four illegal NBCD addressing modes.	2022-04-19 09:59:02 -04:00
Thomas Harte	19f7335926	Add post validation step.	2022-04-19 09:44:02 -04:00
Thomas Harte	99f4cd867d	Decode the two EXTs.	2022-04-19 08:42:17 -04:00
Thomas Harte	93fe3459fd	The quick value won't always fit in reg; turf the problem elsewhere.	2022-04-19 08:37:35 -04:00
Thomas Harte	1abd3bd7f3	Decode SWAP.	2022-04-19 08:37:13 -04:00
Thomas Harte	fc4fd41be4	Reorder from most specific to least.	2022-04-19 08:00:52 -04:00
Thomas Harte	e4c6251ef5	Express the BSR/Bcc.l test properly.	2022-04-18 14:42:31 -04:00
Thomas Harte	7aa250eaf7	Advances to hitting the same absent/present mapping as the old decoder.	2022-04-18 14:41:26 -04:00
Thomas Harte	ff380b686a	Decode MOVEq.	2022-04-18 09:12:45 -04:00
Thomas Harte	d2452f4b68	Fix SUBQ ExtendedOperation mappings.	2022-04-18 09:08:49 -04:00
Thomas Harte	deb9c32a38	Add missing Sccs.	2022-04-18 09:04:17 -04:00
Thomas Harte	440f45b996	Attempt decoding and disambiguation of Scc, DBcc, Bcc and BSR.	2022-04-18 08:55:46 -04:00
Thomas Harte	7d64c4ec66	Add STOP.	2022-04-18 08:29:10 -04:00
Thomas Harte	7fe0d530c1	Add a decoder for TRAP.	2022-04-18 08:05:33 -04:00
Thomas Harte	c944767554	Better document decoding patterns, add LEA and CHK.	2022-04-18 08:00:43 -04:00
Thomas Harte	fde5a1c507	Ensure ADDI, SUBI, etc, provide an operation.	2022-04-18 07:42:30 -04:00
Thomas Harte	1991ed0804	Introduce failing [partial-]test of new 68000 decoder.	2022-04-18 07:23:25 -04:00
Thomas Harte	4eb752b000	Even out tabs.	2022-04-15 20:41:39 -04:00
Thomas Harte	bfb29a58f3	Take another crack at neatness; make LEA overt.	2022-04-15 20:33:59 -04:00
Thomas Harte	f86e455a87	Advance permissively through the 4xxx page to LEA.	2022-04-15 16:01:33 -04:00
Thomas Harte	faa35fe9fc	Decode MOVE and the fixed 0x4xxx set.	2022-04-15 15:40:31 -04:00
Thomas Harte	89b8b59658	Ostensibly completes the 0 line.	2022-04-15 15:33:54 -04:00
Thomas Harte	de55a1adc4	Require a model for decoding; shift a bunch of immediates into ExtendedOperation.	2022-04-15 09:40:37 -04:00
Thomas Harte	d1613025ee	For now, assume the .q actions can be handled inside Preinstruction.	2022-04-13 09:29:12 -04:00
Thomas Harte	cc4431c409	Expand decode to accept a wider array of operations, and then funnel them down.	2022-04-12 16:17:30 -04:00
Thomas Harte	3d5986c55d	Some minor style changes, plus I think I've talked myself into an expanded Operation-tracking enum. Probably.	2022-04-12 14:54:11 -04:00
Thomas Harte	9aeb6ee532	Formally prepare for one- and two-operand instructions.	2022-04-12 09:14:46 -04:00