Thomas Harte
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e75b386f7d
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Attempts DIVU and DIVS.
Reportedly leaving 10965 operations now unimplemented.
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2019-04-26 22:22:35 -04:00 |
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Thomas Harte
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796203859f
|
Implements PEA.
This decreases the unimplemented count by 28 from 11841 to 11813.
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2019-04-26 13:49:59 -04:00 |
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Thomas Harte
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a3b6d2d16e
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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.
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2019-04-25 22:54:58 -04:00 |
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Thomas Harte
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3983f8303f
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Introduces failing test of 68000 opcode coverage.
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2019-04-25 22:06:05 -04:00 |
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Thomas Harte
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dab9bb6575
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Implements EXT.
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2019-04-25 18:22:19 -04:00 |
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Thomas Harte
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c132bda01c
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Implements MOVE from SR.
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2019-04-25 14:39:32 -04:00 |
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Thomas Harte
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4e25bcfcdc
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Corrects decoding of AND/OR x, Dn.
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2019-04-25 14:19:13 -04:00 |
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Thomas Harte
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ea463549c7
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Corrects overflow flag for LSL and LSR.
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2019-04-25 13:59:10 -04:00 |
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Thomas Harte
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723acb31b3
|
Corrects various flag issues with ADD, SUB and NEG.
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2019-04-25 13:53:23 -04:00 |
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Thomas Harte
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5725db9234
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Corrects calculated-address TAS.
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2019-04-25 12:42:05 -04:00 |
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Thomas Harte
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8557e563bc
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Takes a run at TAS, clarifying bus cycles.
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2019-04-25 12:19:40 -04:00 |
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Thomas Harte
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d2491633ce
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Ensures MOVEM to M .w correctly updates A7.
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2019-04-24 23:21:15 -04:00 |
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Thomas Harte
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002796e5f5
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Takes a run at BSET and BCHG.
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2019-04-24 23:01:32 -04:00 |
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Thomas Harte
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fa0accf251
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Attempts to correct flags for ASL, ASR, LSL, LSR.
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2019-04-24 21:04:47 -04:00 |
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Thomas Harte
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dcb8176d90
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Corrects potential failure properly to set stack pointer state.
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2019-04-24 17:58:27 -04:00 |
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Thomas Harte
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be32b1a198
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Fixes JSR (An) return address [again].
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2019-04-24 17:50:38 -04:00 |
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Thomas Harte
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582e4acc11
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Implements ANDI/ORI/EOR to SR/CCR.
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2019-04-24 17:38:59 -04:00 |
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Thomas Harte
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10f75acf71
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Causes EXG to function.
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2019-04-24 16:32:16 -04:00 |
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Thomas Harte
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b9933f512f
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Fixed: the word/long-word bit works the other way around.
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2019-04-24 16:30:15 -04:00 |
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Thomas Harte
|
75a7f7ab22
|
Inserts missing program fetch for CMPI.bw #, (d8/16...).
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2019-04-24 14:45:24 -04:00 |
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Thomas Harte
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e214584c76
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SWAP should clear overflow and carry.
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2019-04-24 13:19:56 -04:00 |
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Thomas Harte
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0bb6b498ce
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Simplifies and fixes post-inc MOVE behaviour.
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2019-04-24 13:14:25 -04:00 |
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Thomas Harte
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958d44a20d
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Causes SWAP actually to perform.
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2019-04-24 13:06:12 -04:00 |
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Thomas Harte
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bb9424d944
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Corrects byte increment/decrement actions for A7.
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2019-04-24 13:01:08 -04:00 |
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Thomas Harte
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11bf706aa2
|
Attempts to fix LT and LTE conditions.
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2019-04-24 10:07:17 -04:00 |
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Thomas Harte
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033b8e6b36
|
ADD/SUBQ #, An shouldn't set flags.
Also, temporarily at least, adds a new means for observing CPU behaviour.
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2019-04-24 09:59:54 -04:00 |
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Thomas Harte
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7c3ea7b2ea
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Resolves additional byte accesses being signalled as word.
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2019-04-23 21:23:20 -04:00 |
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Thomas Harte
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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 |
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Thomas Harte
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7c132a3ed5
|
Ensures 16-bit values of Xn for (d8, An, Xn) are sign extended.
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2019-04-22 22:13:02 -04:00 |
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Thomas Harte
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20e774be1e
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Corrects return address of JSR (An).
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2019-04-22 21:11:49 -04:00 |
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Thomas Harte
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6d6046757d
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Fixes predecrementing MOVEM to leave the proper address in the relevant register.
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2019-04-22 15:41:09 -04:00 |
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Thomas Harte
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55073b0a52
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Corrects a bunch of MOVEs to (d8/16, PC/An, [Xn]).
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2019-04-21 22:55:23 -04:00 |
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Thomas Harte
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44eb4e51ed
|
Ensures DBcc properly signals program fetches.
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2019-04-21 22:54:20 -04:00 |
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Thomas Harte
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3cb042a49d
|
Corrects the carry and extend flags for various long-word operations.
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2019-04-21 22:08:18 -04:00 |
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Thomas Harte
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b78ea7d24c
|
Further simplifies CMPA.
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2019-04-20 21:23:36 -04:00 |
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Thomas Harte
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c66728dce2
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Corrects decoding of CMPA.
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2019-04-20 21:21:33 -04:00 |
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Thomas Harte
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0be9a0cb88
|
Corrects Scc (and other conditionals) for complex addressing modes.
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2019-04-20 18:35:19 -04:00 |
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Thomas Harte
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a90f12dab7
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Corrects return address for TRAP.
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2019-04-20 15:49:32 -04:00 |
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Thomas Harte
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ef33b004f9
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Corrects word access order of MOVEM.l.
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2019-04-20 15:13:12 -04:00 |
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Thomas Harte
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2cac4b0d74
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Corrects EA usage for ADDA and SUBA.
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2019-04-19 23:02:41 -04:00 |
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Thomas Harte
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a49f516265
|
Corrects direction of MOVE [to/from] USP.
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2019-04-19 22:41:06 -04:00 |
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Thomas Harte
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9ef7743205
|
Attempts to unify type decoding a little further.
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2019-04-19 13:29:20 -04:00 |
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Thomas Harte
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ee7ae11e90
|
Implements EXG and SWAP.
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2019-04-19 11:27:43 -04:00 |
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Thomas Harte
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f67d7f1db5
|
Adds the final (!) set of missing MOVEs.
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2019-04-19 11:11:38 -04:00 |
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Thomas Harte
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99981751a2
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Adds the official NOP.
Which is a freebie.
|
2019-04-18 23:46:01 -04:00 |
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Thomas Harte
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ffdf02c5df
|
Adds MOVE XXX.lw, -(An)
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2019-04-18 23:40:54 -04:00 |
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Thomas Harte
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27c7d00a05
|
Commutes final missing MOVEs to TODOs.
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2019-04-18 23:35:32 -04:00 |
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Thomas Harte
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64c4137e5b
|
Begins a cleanup procedure on MOVE.
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2019-04-18 23:25:19 -04:00 |
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Thomas Harte
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8c26d0c6e6
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Makes an attempt at RTE and RTR.
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2019-04-18 20:50:58 -04:00 |
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Thomas Harte
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81dcfd9f85
|
Implements AND, OR and EOR.
As well as introducing a little more nuance to the double-decoding test.
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2019-04-18 16:34:48 -04:00 |
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Thomas Harte
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9334557fbf
|
Added important TODO.
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2019-04-17 23:12:32 -04:00 |
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Thomas Harte
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b09de8efce
|
Attempts to fill in the rest of MOVE x, -(An).
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2019-04-17 23:05:16 -04:00 |
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Thomas Harte
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5a50eb56dd
|
Marginally increases coverage of MOVE x, -(An).
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2019-04-17 22:30:07 -04:00 |
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Thomas Harte
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e49b257e94
|
Takes a run at TRAP.
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2019-04-17 22:21:56 -04:00 |
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Thomas Harte
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b8a0f4e831
|
Implements MOVE to/from USP.
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2019-04-17 16:58:59 -04:00 |
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Thomas Harte
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29f8dcfb40
|
Fixes a bunch of (d16, An)-type MOVEs and implements MOVE (XXX).wl, (d16,An)/etc.
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2019-04-17 16:13:35 -04:00 |
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Thomas Harte
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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 |
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Thomas Harte
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0bd653708c
|
Corrects MOVE.bw Dn, (An)[+].
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2019-04-17 14:31:20 -04:00 |
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Thomas Harte
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41d800cb63
|
Fixes ADD/SUB Dn,x to use the proper destination value.
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2019-04-17 10:23:47 -04:00 |
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Thomas Harte
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cadc0bd509
|
Mental delusion lifted: JSR doesn't look enough like BSR.
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2019-04-17 10:02:14 -04:00 |
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Thomas Harte
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b64da2710a
|
Corrects a few MOVE #s.
|
2019-04-17 10:00:14 -04:00 |
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Thomas Harte
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82b08d0e3a
|
Corrects addressing behaviour of nRd[+-].
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2019-04-17 08:53:34 -04:00 |
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Thomas Harte
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8f77d1831b
|
Implements MULU and MULS.
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2019-04-16 22:16:43 -04:00 |
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Thomas Harte
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be722143e1
|
Completes addressing modes for ADDI/etc/etc.
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2019-04-16 21:34:16 -04:00 |
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Thomas Harte
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d8d974e2d7
|
Consolidates JSR and BSR preparation.
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2019-04-16 21:29:37 -04:00 |
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Thomas Harte
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9b7ca6f271
|
Implements the basics of EORI, ORI, ANDI, SUBI and ADDI.
Also corrects the BSR return address.
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2019-04-16 19:50:10 -04:00 |
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Thomas Harte
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8ce018dbab
|
Adds the necessary runtime support for AND, EOR and OR.
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2019-04-16 15:17:40 -04:00 |
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Thomas Harte
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180062c58c
|
Finishes fleshing out [ADD/SUB]Q.
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2019-04-16 14:28:31 -04:00 |
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Thomas Harte
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37656f14d8
|
Adds basic addressing modes for [ADD/SUB]Q.
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2019-04-16 11:19:45 -04:00 |
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Thomas Harte
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dec5535e54
|
Implements (arguably: fixes) BSR.
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2019-04-15 23:20:36 -04:00 |
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Thomas Harte
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1f0e3b157a
|
Corrects a couple of JSR and JMP addressing modes.
|
2019-04-15 22:37:11 -04:00 |
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Thomas Harte
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d802e83f49
|
Fills in further MOVEs.
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2019-04-15 22:25:22 -04:00 |
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Thomas Harte
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ebcae25762
|
Adjusts JSR behaviour and further extends MOVE.
|
2019-04-15 22:02:52 -04:00 |
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Thomas Harte
|
5330267d16
|
Implements BCLR.
|
2019-04-15 18:11:02 -04:00 |
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Thomas Harte
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892476973b
|
Attempts RO{X}[L/R].
|
2019-04-15 17:31:58 -04:00 |
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Thomas Harte
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84f4a25bc9
|
Completes TST.
|
2019-04-15 16:28:20 -04:00 |
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Thomas Harte
|
1460a88bb3
|
Takes a run at JSR and RTS.
|
2019-04-15 15:14:38 -04:00 |
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Thomas Harte
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d25ab35d58
|
Finally gets setw usage correct.
|
2019-04-15 12:41:56 -04:00 |
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Thomas Harte
|
a223cd90a1
|
Adds predecrement TSTs, increases QL running time, reduces logging.
|
2019-04-15 12:36:08 -04:00 |
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Thomas Harte
|
aef92ba29c
|
Corrects immediate shift count.
|
2019-04-15 12:25:45 -04:00 |
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Thomas Harte
|
328d297490
|
Implements the first few addressing modes for TST.
|
2019-04-15 10:03:52 -04:00 |
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Thomas Harte
|
3d240f3f18
|
Corrects decoding of DBcc.
|
2019-04-15 09:49:23 -04:00 |
|
Thomas Harte
|
45f35236a7
|
Corrects decoding of ADDA and SUBA.
|
2019-04-15 09:44:06 -04:00 |
|
Thomas Harte
|
fba210f7ce
|
Corrects MOVE.l Dn, (An)[+].
|
2019-04-15 09:30:49 -04:00 |
|
Thomas Harte
|
8a09e5fc16
|
Implements Scc.
|
2019-04-14 22:39:13 -04:00 |
|
Thomas Harte
|
75d8824e6b
|
Eliminates implicit type conversion.
|
2019-04-14 21:02:28 -04:00 |
|
Thomas Harte
|
325af677d3
|
Implements MOVEM to M with an implicit type conversion.
|
2019-04-14 20:53:27 -04:00 |
|
Thomas Harte
|
1003e70b5e
|
Implements MOVEM to R.
|
2019-04-14 20:02:18 -04:00 |
|
Thomas Harte
|
d70229201d
|
Advances right up to the lack of MOVEM actions being the final piece.
|
2019-04-14 14:45:29 -04:00 |
|
Thomas Harte
|
823f91605b
|
Still slow pedalling slightly, adds further MOVEM storage.
|
2019-04-14 14:31:13 -04:00 |
|
Thomas Harte
|
53f75034fc
|
Commits at least to decoding MOVEM.
|
2019-04-14 14:09:28 -04:00 |
|
Thomas Harte
|
78649a5b54
|
Fleshes out MOVE, (XXX) a little further.
|
2019-04-12 17:16:03 -04:00 |
|
Thomas Harte
|
f48db625a0
|
Corrects write-back and zero flag for ADD/SUB.l.
|
2019-04-12 16:41:00 -04:00 |
|
Thomas Harte
|
2ba66c4457
|
Corrects MOVEA, adds extra test safeguards.
|
2019-04-12 16:10:17 -04:00 |
|
Thomas Harte
|
2c78ea1a4e
|
Completes conversion away from magic constants.
|
2019-04-12 15:48:29 -04:00 |
|
Thomas Harte
|
73f50ac44e
|
Commits further to elimination of magic constants.
|
2019-04-12 13:45:28 -04:00 |
|
Thomas Harte
|
9ce48953c1
|
Improves debugging printout.
|
2019-04-12 13:45:03 -04:00 |
|
Thomas Harte
|
1098cd0c6b
|
Begins rooting out magic constants.
|
2019-04-11 22:31:17 -04:00 |
|
Thomas Harte
|
652ebd143c
|
Corrects addressing mode support for LEA.
|
2019-04-11 11:58:34 -04:00 |
|
Thomas Harte
|
8e9d7c0f40
|
Corrects register-relative address calculation.
|
2019-04-10 23:09:03 -04:00 |
|