13 Commits

Author	SHA1	Message	Date
Thomas Harte	f3d3e588fd	Add enough of state to [sort-of] pass the first test. ... i.e. until the processor overruns, as it is permitted to do, and can't handle the second instruction.	2022-05-17 16:51:26 -04:00
Thomas Harte	4a40581deb	Completes performance of NBCD D0.	2022-05-17 16:10:20 -04:00
Thomas Harte	eed2672db5	Add documentation, honour signal_will_perform.	2022-05-17 15:05:11 -04:00
Thomas Harte	84071ac6d0	Implement reset logic, advance as far as actually performing an NBCD on D0 (but not writing it back).	2022-05-17 14:51:49 -04:00
Thomas Harte	1a27eea46c	Establish general pattern for selecting a performance phase and obtaining operands.	2022-05-17 14:08:50 -04:00
Thomas Harte	d0b6451f02	Step gingerly on to fetching operands.	2022-05-17 08:26:35 -04:00
Thomas Harte	2147c5a5f2	Fill in missing #undefs.	2022-05-16 21:02:25 -04:00
Thomas Harte	c7aa4d8b6d	Fix state transitions. ... Confirmed that the 68000 mk 2 now appears correctly to perform a reset.	2022-05-16 21:00:25 -04:00
Thomas Harte	e94efe887c	Switch to use of __COUNTER__.	2022-05-16 20:38:17 -04:00
Thomas Harte	3db2de7478	Works 68000 mk2 into the comparative tests. ... ... revealing that I've leant a little too hard on __LINE__.	2022-05-16 20:04:13 -04:00
Thomas Harte	345f7c3c62	Fill in just enough to attempt the reset exception, assuming DTACK rather than VPA or BERR.	2022-05-16 16:57:40 -04:00
Thomas Harte	6f6e466c08	Make a first sketch of the coroutine-esque structure I'm going to experiment with here.	2022-05-16 11:59:03 -04:00
Thomas Harte	b0518040b5	Plants the seek of a 68000 mark 2.	2022-05-16 11:44:16 -04:00