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8,901 Commits 7 Branches 121 Tags 500 MiB
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365 Commits

Author SHA1 Message Date
Thomas Harte
e6dc2e0d31 Add EXG, EXT. 2022-04-25 11:49:14 -04:00
Thomas Harte
9bbd1390c1 Add new-style validation of EORI to CCR, move EXG decoding into page navigation. 2022-04-25 11:43:30 -04:00
Thomas Harte
27f8db6e8b Update DBcc, DIVU/DIVS, EOR. 2022-04-25 09:49:18 -04:00
Thomas Harte
dda0c0e097 Update CMPM, CMPI. 2022-04-25 09:39:22 -04:00
Thomas Harte
f5ea5c26a3 Translate CHK, CLR, CMP, CMPA. 2022-04-24 21:05:00 -04:00
Thomas Harte
d01fa96177 Port BSR, BTST. 2022-04-24 20:49:41 -04:00
Thomas Harte
03caa53863 Translate BSET. 2022-04-24 19:58:10 -04:00
Thomas Harte
4f4a2e6d92 Translate ASL, ASR, Bcc, BCHG, BCLR. 2022-04-24 19:53:54 -04:00
Thomas Harte
87178ed725 Port AND. 2022-04-24 15:12:18 -04:00
Thomas Harte
94e5436f6e Attempt a more compact retelling. 2022-04-24 14:47:14 -04:00
Thomas Harte
b965f2053a Start experimenting with a simple AND for operand validation. 2022-04-24 10:43:06 -04:00
Thomas Harte
edee078f0a Eliminate last set of failures. 2022-04-22 20:57:45 -04:00
Thomas Harte
d4b766bf3f Introduce directional ADD/SUB/AND/OR. 
Just 512 failures to go.
 2022-04-22 20:37:09 -04:00
Thomas Harte
72772c9a83 Remove branch from combined_mode. 
On x86 it was probably only a conditional move, but this is fine.
 2022-04-22 15:11:41 -04:00
Thomas Harte
4c806d7c51 Tidy up slightly, ahead of a final push to getting complete test success. 
After which I can start undoing style errors.
 2022-04-22 14:51:25 -04:00
Thomas Harte
96afcb7a43 Introduce remainder of tests. 2022-04-22 14:33:43 -04:00
Thomas Harte
efeee5160e Add tests for RTE, RTR, TRAP, TRAPV, CHK. 2022-04-22 10:06:39 -04:00
Thomas Harte
06fb502047 Add MUL/DIV tests and exclusions. 2022-04-22 09:47:16 -04:00
Thomas Harte
977192f480 Resolve D-page decoding errors. 
In particular: that I'd overlooked CMPM, and was treating NOT as two-operand.
 2022-04-22 09:24:16 -04:00
Thomas Harte
cf66d9d38d Add failing tests for EOR, NOT, OR; disambiguate EOR vs CMP. 2022-04-21 20:36:04 -04:00
Thomas Harte
25eeff8fc5 Correct CMP decoding, correct AND as far as asymmetry of Dn, Dn. 2022-04-21 20:14:52 -04:00
Thomas Harte
bf9fc0ae96 Correct decoding of BSR. 2022-04-21 16:24:34 -04:00
Thomas Harte
a8a1a74b79 Correct BSRb quick value. 2022-04-21 16:13:06 -04:00
Thomas Harte
549e440f7c Add 'quick' decoding and testing. 2022-04-21 16:05:00 -04:00
Thomas Harte
45c02c31f8 Add MOVEM exclusions. 2022-04-21 15:47:34 -04:00
Thomas Harte
b6b092d124 Add tests, exclusions for rest of shift/roll group. 2022-04-21 11:26:56 -04:00
Thomas Harte
3af93ada6f Test and correct Bcc, BSR, CLR, NEGX, NEG. 2022-04-20 20:19:56 -04:00
Thomas Harte
dc16928f74 Add appropriate exclusions for JSR, JMP, Scc. 2022-04-20 16:56:26 -04:00
Thomas Harte
80ff146620 Add CMP, CMPA and TST tests and exclusions. 2022-04-20 16:29:45 -04:00
Thomas Harte
d4fe9d8166 Complete BTST/etc exclusions. 2022-04-20 16:16:24 -04:00
Thomas Harte
85a0af03c1 Import more standard JSON; start validating. 2022-04-20 09:17:00 -04:00
Thomas Harte
dc43f5605b Give MOVEPs precedence. 2022-04-20 08:40:56 -04:00
Thomas Harte
fab064641f Add Move[to/from][SR/CCR/USP] tests, correct decodings. 2022-04-20 07:59:13 -04:00
Thomas Harte
316e9681cc Weed out false PEAs. 2022-04-19 20:34:08 -04:00
Thomas Harte
4181313cc6 Correct decoding of SWAP. 2022-04-19 20:28:00 -04:00
Thomas Harte
6aabc5e7b0 Test LEA, PEA, add name for MOVEq. 2022-04-19 19:45:51 -04:00
Thomas Harte
343a8e0192 Resolve wrong-headed mapping of LEA to MOVEAl. 2022-04-19 19:36:21 -04:00
Thomas Harte
ef87d09cfa Clear up MOVEs, fail on MOVEAs. 2022-04-19 17:13:23 -04:00
Thomas Harte
d21c67f237 Don't permit byte move from address register. 2022-04-19 16:49:26 -04:00
Thomas Harte
de40fed248 Test MOVEs and add operand validation. 2022-04-19 16:31:03 -04:00
Thomas Harte
76d7e0e1f8 Test and correct SUBs. 2022-04-19 16:27:20 -04:00
Thomas Harte
1f585d67b6 ADDA: correct decoding, add validation. 2022-04-19 14:43:01 -04:00
Thomas Harte
5b22e94a4b Map invalid reg+mode combinations to AddressingMode::None; add validation of ADDs and decoding of ADDX. 2022-04-19 14:36:36 -04:00
Thomas Harte
7749aef6b6 Improve const correctness. 2022-04-19 14:35:40 -04:00
Thomas Harte
5de8fb0d08 Disallow four illegal NBCD addressing modes. 2022-04-19 09:59:02 -04:00
Thomas Harte
19f7335926 Add post validation step. 2022-04-19 09:44:02 -04:00
Thomas Harte
99f4cd867d Decode the two EXTs. 2022-04-19 08:42:17 -04:00
Thomas Harte
93fe3459fd The quick value won't always fit in reg; turf the problem elsewhere. 2022-04-19 08:37:35 -04:00
Thomas Harte
1abd3bd7f3 Decode SWAP. 2022-04-19 08:37:13 -04:00
Thomas Harte
fc4fd41be4 Reorder from most specific to least. 2022-04-19 08:00:52 -04:00
Thomas Harte
e4c6251ef5 Express the BSR/Bcc.l test properly. 2022-04-18 14:42:31 -04:00
Thomas Harte
7aa250eaf7 Advances to hitting the same absent/present mapping as the old decoder. 2022-04-18 14:41:26 -04:00
Thomas Harte
ff380b686a Decode MOVEq. 2022-04-18 09:12:45 -04:00
Thomas Harte
d2452f4b68 Fix SUBQ ExtendedOperation mappings. 2022-04-18 09:08:49 -04:00
Thomas Harte
deb9c32a38 Add missing Sccs. 2022-04-18 09:04:17 -04:00
Thomas Harte
440f45b996 Attempt decoding and disambiguation of Scc, DBcc, Bcc and BSR. 2022-04-18 08:55:46 -04:00
Thomas Harte
7d64c4ec66 Add STOP. 2022-04-18 08:29:10 -04:00
Thomas Harte
7fe0d530c1 Add a decoder for TRAP. 2022-04-18 08:05:33 -04:00
Thomas Harte
c944767554 Better document decoding patterns, add LEA and CHK. 2022-04-18 08:00:43 -04:00
Thomas Harte
fde5a1c507 Ensure ADDI, SUBI, etc, provide an operation. 2022-04-18 07:42:30 -04:00
Thomas Harte
1991ed0804 Introduce failing [partial-]test of new 68000 decoder. 2022-04-18 07:23:25 -04:00
Thomas Harte
4eb752b000 Even out tabs. 2022-04-15 20:41:39 -04:00
Thomas Harte
bfb29a58f3 Take another crack at neatness; make LEA overt. 2022-04-15 20:33:59 -04:00
Thomas Harte
f86e455a87 Advance permissively through the 4xxx page to LEA. 2022-04-15 16:01:33 -04:00
Thomas Harte
faa35fe9fc Decode MOVE and the fixed 0x4xxx set. 2022-04-15 15:40:31 -04:00
Thomas Harte
89b8b59658 Ostensibly completes the 0 line. 2022-04-15 15:33:54 -04:00
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
Thomas Harte
bb5cf570e5 Remove conditional, make generic enough for both 32- and 64-bit operation. 2022-04-10 15:18:23 -04:00
Thomas Harte
7002d6d306 Improve accuracy of comment. 2022-04-10 09:37:18 -04:00
Thomas Harte
1b8d8f3a04 Default to 32-bit versions. 2022-04-10 09:35:58 -04:00
Thomas Harte
284440336d Correct rotate_mask(). 2022-04-10 09:31:39 -04:00
Thomas Harte
140ae7a513 Clarify template parameters. 2022-04-10 08:57:09 -04:00
Thomas Harte
7de50b5e2e Provide 64-bit me, mb and sh. Add direct getter for rotate masks. 2022-04-09 21:08:01 -04:00
Thomas Harte
4652a84b43 Add exposition. 2022-04-09 19:20:13 -04:00
Thomas Harte
9e0755bc86 Introduce overlooked: ld, ldu, rldclx, rldcrx, rldicx, rldiclx, rldicrx, rldimix. 2022-04-09 18:28:51 -04:00
Thomas Harte
da0f7d7907 Rearrange into alphabetical order. 2022-04-09 10:20:03 -04:00
Thomas Harte
88d72bf31d Fill in more mnemonics. 2022-04-08 10:01:52 -04:00
Thomas Harte
aac2f7dd73 Add missing validations. 2022-04-08 09:47:04 -04:00
Thomas Harte
1f44ad1723 Completes test cases. 2022-04-06 21:09:58 -04:00
Thomas Harte
4ab1857a11 Complete MPC601 commentary. 2022-04-06 20:53:44 -04:00
Thomas Harte
d23c714ec7 Build in an optional post hoc validation. 
TODO: validate.
 2022-04-05 11:23:54 -04:00
Thomas Harte
59a1fde2a1 Fix is_zero_mask. 2022-04-03 20:37:09 -04:00
Thomas Harte
31276de5c3 Complete 'misc instructions' tests. 2022-04-03 20:33:32 -04:00
Thomas Harte
c581aef11d Test as far as mffs. 2022-04-03 18:29:40 -04:00
Thomas Harte
7f6a955a71 Complete the cmp set. 2022-04-03 15:50:03 -04:00
Thomas Harte
125d97cc41 Complete floating point tests. 2022-04-03 08:55:28 -04:00
Thomas Harte
de7d9ba471 Add further floating point tests. 2022-04-03 08:06:59 -04:00