14 Commits

Author	SHA1	Message	Date
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	e7f6cc598d	Make first attempt to complete broad phase of decoding.	2022-04-12 09:08:46 -04:00
Thomas Harte	cd465dd121	Decode page E.	2022-04-12 09:04:40 -04:00
Thomas Harte	174b48a14a	Populate lines 9 and D.	2022-04-12 08:57:40 -04:00
Thomas Harte	bca18e7aba	Fill in line decoders for 5, 6 and 7. ... This leaves 9, D and E to go.	2022-04-12 08:44:32 -04:00
Thomas Harte	17e761d6c6	Add enough code to pages 0–3 to shift problem to decode().	2022-04-12 08:36:44 -04:00
Thomas Harte	c50556dde4	Create empty line decoders.	2022-04-12 08:16:29 -04:00
Thomas Harte	dd5bdd67d7	Add B page and a large chunk of 4.	2022-04-12 07:49:08 -04:00
Thomas Harte	21ac9363e9	Add page 8.	2022-04-11 16:32:57 -04:00
Thomas Harte	8e3cccf4d6	Begins a formalised 68k decoder.	2022-04-11 15:00:55 -04:00