11 Commits

Author	SHA1	Message	Date
Thomas Harte	7749aef6b6	Improve const correctness.	2022-04-19 14:35:40 -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	440f45b996	Attempt decoding and disambiguation of Scc, DBcc, Bcc and BSR.	2022-04-18 08:55:46 -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
Thomas Harte	dd5bdd67d7	Add B page and a large chunk of 4.	2022-04-12 07:49:08 -04:00
Thomas Harte	8e3cccf4d6	Begins a formalised 68k decoder.	2022-04-11 15:00:55 -04:00