133 Commits

Author	SHA1	Message	Date
Thomas Harte	4b1324de77	Takes a run at TRAPV. ... ... to leave 1466 as the unimplemented count.	2019-04-28 15:52:58 -04:00
Thomas Harte	8e8dce9bec	Attempts an implementation of CHK. ... 1467 is now the official count of things to implement, though I'm starting to get suspicious.	2019-04-28 15:47:21 -04:00
Thomas Harte	f4350522bf	Implements NBCD. ... Now outstanding: 1891.	2019-04-27 21:29:50 -04:00
Thomas Harte	e2abb66a11	Adds missing addressing modes for ADDA and SUBA. ... ... reducing missing opcodes to 1941.	2019-04-27 17:22:26 -04:00
Thomas Harte	ab5fcab9bf	Attempts an implementation of ADDX and SUBX. ... Leaving 2005 non-[A/F]-line instructions.	2019-04-27 16:57:47 -04:00
Thomas Harte	e75b386f7d	Attempts DIVU and DIVS. ... Reportedly leaving 10965 operations now unimplemented.	2019-04-26 22:22:35 -04:00
Thomas Harte	796203859f	Implements PEA. ... This decreases the unimplemented count by 28 from 11841 to 11813.	2019-04-26 13:49:59 -04:00
Thomas Harte	a3b6d2d16e	Corrects test and resolves all instances of opcodes that are valid but shouldn't be. ... The converse case will require implementation of the remaining instructions.	2019-04-25 22:54:58 -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	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	002796e5f5	Takes a run at BSET and BCHG.	2019-04-24 23:01:32 -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	75a7f7ab22	Inserts missing program fetch for CMPI.bw #, (d8/16...).	2019-04-24 14:45:24 -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	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	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	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	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
Thomas Harte	e49b257e94	Takes a run at TRAP.	2019-04-17 22:21:56 -04:00
Thomas Harte	b8a0f4e831	Implements MOVE to/from USP.	2019-04-17 16:58:59 -04:00
Thomas Harte	29f8dcfb40	Fixes a bunch of (d16, An)-type MOVEs and implements MOVE (XXX).wl, (d16,An)/etc.	2019-04-17 16:13:35 -04:00
Thomas Harte	0c05983617	Shortens impact of MULU on the instruction stream to correct parsing. ... I need to look into this.	2019-04-17 15:15:48 -04:00
Thomas Harte	0bd653708c	Corrects MOVE.bw Dn, (An)[+].	2019-04-17 14:31:20 -04:00
Thomas Harte	41d800cb63	Fixes ADD/SUB Dn,x to use the proper destination value.	2019-04-17 10:23:47 -04:00
Thomas Harte	cadc0bd509	Mental delusion lifted: JSR doesn't look enough like BSR.	2019-04-17 10:02:14 -04:00
Thomas Harte	b64da2710a	Corrects a few MOVE #s.	2019-04-17 10:00:14 -04:00
Thomas Harte	82b08d0e3a	Corrects addressing behaviour of nRd[+-].	2019-04-17 08:53:34 -04:00