164 Commits

Author	SHA1	Message	Date
Thomas Harte	3983f8303f	Introduces failing test of 68000 opcode coverage.	2019-04-25 22:06:05 -04:00
Thomas Harte	dab9bb6575	Implements EXT.	2019-04-25 18:22:19 -04:00
Thomas Harte	c132bda01c	Implements MOVE from SR.	2019-04-25 14:39:32 -04:00
Thomas Harte	4e25bcfcdc	Corrects decoding of AND/OR x, Dn.	2019-04-25 14:19:13 -04:00
Thomas Harte	ea463549c7	Corrects overflow flag for LSL and LSR.	2019-04-25 13:59:10 -04:00
Thomas Harte	723acb31b3	Corrects various flag issues with ADD, SUB and NEG.	2019-04-25 13:53:23 -04:00
Thomas Harte	5725db9234	Corrects calculated-address TAS.	2019-04-25 12:42:05 -04:00
Thomas Harte	8557e563bc	Takes a run at TAS, clarifying bus cycles.	2019-04-25 12:19:40 -04:00
Thomas Harte	d2491633ce	Ensures MOVEM to M .w correctly updates A7.	2019-04-24 23:21:15 -04:00
Thomas Harte	002796e5f5	Takes a run at BSET and BCHG.	2019-04-24 23:01:32 -04:00
Thomas Harte	fa0accf251	Attempts to correct flags for ASL, ASR, LSL, LSR.	2019-04-24 21:04:47 -04:00
Thomas Harte	dcb8176d90	Corrects potential failure properly to set stack pointer state.	2019-04-24 17:58:27 -04:00
Thomas Harte	be32b1a198	Fixes JSR (An) return address [again].	2019-04-24 17:50:38 -04:00
Thomas Harte	582e4acc11	Implements ANDI/ORI/EOR to SR/CCR.	2019-04-24 17:38:59 -04:00
Thomas Harte	10f75acf71	Causes EXG to function.	2019-04-24 16:32:16 -04:00
Thomas Harte	b9933f512f	Fixed: the word/long-word bit works the other way around.	2019-04-24 16:30:15 -04:00
Thomas Harte	75a7f7ab22	Inserts missing program fetch for CMPI.bw #, (d8/16...).	2019-04-24 14:45:24 -04:00
Thomas Harte	e214584c76	SWAP should clear overflow and carry.	2019-04-24 13:19:56 -04:00
Thomas Harte	0bb6b498ce	Simplifies and fixes post-inc MOVE behaviour.	2019-04-24 13:14:25 -04:00
Thomas Harte	958d44a20d	Causes SWAP actually to perform.	2019-04-24 13:06:12 -04:00
Thomas Harte	bb9424d944	Corrects byte increment/decrement actions for A7.	2019-04-24 13:01:08 -04:00
Thomas Harte	11bf706aa2	Attempts to fix LT and LTE conditions.	2019-04-24 10:07:17 -04:00
Thomas Harte	033b8e6b36	ADD/SUBQ #, An shouldn't set flags. ... Also, temporarily at least, adds a new means for observing CPU behaviour.	2019-04-24 09:59:54 -04:00
Thomas Harte	7c3ea7b2ea	Resolves additional byte accesses being signalled as word.	2019-04-23 21:23:20 -04:00
Thomas Harte	a08043ae88	Ensures that MOVE.b #, (xxx).l writes only a byte. ... Also rearranges some of the temporary logging functionality.	2019-04-23 19:01:58 -04:00
Thomas Harte	7c132a3ed5	Ensures 16-bit values of Xn for (d8, An, Xn) are sign extended.	2019-04-22 22:13:02 -04:00
Thomas Harte	20e774be1e	Corrects return address of JSR (An).	2019-04-22 21:11:49 -04:00
Thomas Harte	6d6046757d	Fixes predecrementing MOVEM to leave the proper address in the relevant register.	2019-04-22 15:41:09 -04:00
Thomas Harte	55073b0a52	Corrects a bunch of MOVEs to (d8/16, PC/An, [Xn]).	2019-04-21 22:55:23 -04:00
Thomas Harte	44eb4e51ed	Ensures DBcc properly signals program fetches.	2019-04-21 22:54:20 -04:00
Thomas Harte	3cb042a49d	Corrects the carry and extend flags for various long-word operations.	2019-04-21 22:08:18 -04:00
Thomas Harte	b78ea7d24c	Further simplifies CMPA.	2019-04-20 21:23:36 -04:00
Thomas Harte	c66728dce2	Corrects decoding of CMPA.	2019-04-20 21:21:33 -04:00
Thomas Harte	0be9a0cb88	Corrects Scc (and other conditionals) for complex addressing modes.	2019-04-20 18:35:19 -04:00
Thomas Harte	a90f12dab7	Corrects return address for TRAP.	2019-04-20 15:49:32 -04:00
Thomas Harte	ef33b004f9	Corrects word access order of MOVEM.l.	2019-04-20 15:13:12 -04:00
Thomas Harte	2cac4b0d74	Corrects EA usage for ADDA and SUBA.	2019-04-19 23:02:41 -04:00
Thomas Harte	a49f516265	Corrects direction of MOVE [to/from] USP.	2019-04-19 22:41:06 -04:00
Thomas Harte	9ef7743205	Attempts to unify type decoding a little further.	2019-04-19 13:29:20 -04:00
Thomas Harte	ee7ae11e90	Implements EXG and SWAP.	2019-04-19 11:27:43 -04:00
Thomas Harte	f67d7f1db5	Adds the final (!) set of missing MOVEs.	2019-04-19 11:11:38 -04:00
Thomas Harte	99981751a2	Adds the official NOP. ... Which is a freebie.	2019-04-18 23:46:01 -04:00
Thomas Harte	ffdf02c5df	Adds MOVE XXX.lw, -(An)	2019-04-18 23:40:54 -04:00
Thomas Harte	27c7d00a05	Commutes final missing MOVEs to TODOs.	2019-04-18 23:35:32 -04:00
Thomas Harte	64c4137e5b	Begins a cleanup procedure on MOVE.	2019-04-18 23:25:19 -04:00
Thomas Harte	8c26d0c6e6	Makes an attempt at RTE and RTR.	2019-04-18 20:50:58 -04:00
Thomas Harte	81dcfd9f85	Implements AND, OR and EOR. ... As well as introducing a little more nuance to the double-decoding test.	2019-04-18 16:34:48 -04:00
Thomas Harte	9334557fbf	Added important TODO.	2019-04-17 23:12:32 -04:00
Thomas Harte	b09de8efce	Attempts to fill in the rest of MOVE x, -(An).	2019-04-17 23:05:16 -04:00
Thomas Harte	5a50eb56dd	Marginally increases coverage of MOVE x, -(An).	2019-04-17 22:30:07 -04:00