Thomas Harte
64586ca7ba
Implement BTST/etc.
2022-05-04 20:57:22 -04:00
Thomas Harte
15c90e546f
Fix rotates and shifts to memory.
2022-05-04 19:44:59 -04:00
Thomas Harte
5aabe01b6d
Mostly fix LINK and UNLK.
2022-05-04 08:41:55 -04:00
Thomas Harte
5d1d94848c
Take a bash at LINK and UNLK.
2022-05-04 08:26:11 -04:00
Thomas Harte
7d10976e08
Add LINK and UNLINK to operand_flags
.
2022-05-03 20:51:02 -04:00
Thomas Harte
d3b55a74a5
Fix LEA, proceed to non-functional LINK and UNLK.
2022-05-03 20:45:36 -04:00
Thomas Harte
de58ec71fd
Fix EXT, SWAP.
2022-05-03 20:17:36 -04:00
Thomas Harte
052ba80fd7
Add enough wiring to complete but fail EXT and JMP/JSR.
2022-05-03 15:49:55 -04:00
Thomas Harte
39f0ec7536
Get far enough through CHK to realise that MOVEM probably needs to be divided by direction.
2022-05-03 15:40:04 -04:00
Thomas Harte
af973138df
Correct decoding of Bcc.b, satisfying Bcc and BSR tests.
2022-05-03 15:32:54 -04:00
Thomas Harte
5a87506f3d
Fix Bcc, making decision that add_pc
is relative to start of instruction.
2022-05-03 15:21:42 -04:00
Thomas Harte
90f0005cf2
Proceed to failing Bcc and flagging up my lack of an implementation for BSR.
2022-05-03 14:45:49 -04:00
Thomas Harte
d8b3748d24
Fix Scc size, DBcc behaviour.
2022-05-03 14:40:51 -04:00
Thomas Harte
1b224c961e
Fix Scc, add operand flags for DBcc.
2022-05-03 14:23:57 -04:00
Thomas Harte
b6ffff5bbd
Distinguish [ADD/SUB]QA from [ADD/SUB]Q.
2022-05-03 14:17:26 -04:00
Thomas Harte
b3cf13775b
Consume operand_flags into Instruction.hpp.
2022-05-03 11:09:57 -04:00
Thomas Harte
c61809f0c4
Add CMPAl
.
2022-05-03 09:20:02 -04:00
Thomas Harte
2f2d6bc08b
Correct CMPw.
2022-05-03 09:05:34 -04:00
Thomas Harte
1bb809098c
Switch — messily — to a more compact way of indicating sequence.
2022-05-03 09:04:54 -04:00
Thomas Harte
011506f00d
Add basic exceptions.
2022-05-02 21:27:58 -04:00
Thomas Harte
25ab478461
Fix immediate byte and word fetches.
2022-05-02 20:17:44 -04:00
Thomas Harte
fc9a35dd04
Test add/sub, add an exception for invalid Sequence
s.
2022-05-02 20:09:38 -04:00
Thomas Harte
7efe30f34c
Fix (d8, _, Xn) calculation.
2022-05-02 15:09:59 -04:00
Thomas Harte
3827ecd6d3
Proceed to complete test running.
2022-05-02 12:57:45 -04:00
Thomas Harte
14532867a4
Sneaks towards testing EXT.
2022-05-02 08:00:56 -04:00
Thomas Harte
73f340586d
Proceed to building, but failing tests.
2022-05-02 07:45:07 -04:00
Thomas Harte
56fe00c5fb
Correct errors preparatory to Executor's lack of flow controller actions.
2022-05-01 20:40:57 -04:00
Thomas Harte
3c26177239
Provide both compile- and run-time operation selection options.
2022-05-01 17:39:56 -04:00
Thomas Harte
fe8f0d960d
Equivocate.
...
(Specifically: addresses cannot generally be obtained in advance, as they are often the product of registers, but things like displacements, immediate values and absolute addresses can)
2022-05-01 15:30:03 -04:00
Thomas Harte
c72caef4fd
Correct further size specifiers.
2022-05-01 15:21:58 -04:00
Thomas Harte
0720a391e8
Correct address register mutations.
2022-05-01 15:18:06 -04:00
Thomas Harte
d16ac70a50
Correct include path.
2022-05-01 15:14:12 -04:00
Thomas Harte
fc8e020436
Improve field name.
2022-05-01 15:12:13 -04:00
Thomas Harte
6b073c6067
Attempt to round out addressing modes, shift to a header, as per templating on BusHandler.
2022-05-01 15:10:54 -04:00
Thomas Harte
0b19bbff8d
Marginally refactor, to avoid repetition of read/write branch.
2022-05-01 13:09:28 -04:00
Thomas Harte
42927c1e32
Establish more of the 680x0 executor loop.
2022-05-01 13:00:20 -04:00
Thomas Harte
df999978f1
Figure out what the call to perform
should look like.
...
Albeit that this class doesn't currently offer any of the proper flow control actions.
2022-04-30 20:34:44 -04:00
Thomas Harte
43cd740a7b
Shuffle Step
to give meaning to the LSB.
2022-04-30 20:33:35 -04:00
Thomas Harte
52f355db24
Decision: operation is not a template parameter. Hence can use condition as fully typed.
2022-04-30 14:08:51 -04:00
Thomas Harte
a86c5ccdc9
Merge branch '68000Perform' of github.com:TomHarte/CLK into 68000Perform
2022-04-30 14:02:23 -04:00
Thomas Harte
e532562108
Merge branch 'master' into 68000Perform
2022-04-30 14:02:17 -04:00
Thomas Harte
8d24c00df2
Include decoded condition in Preinstruction.
2022-04-30 09:00:47 -04:00
Thomas Harte
f4074e0bba
Add basic status.
2022-04-30 08:38:28 -04:00
Thomas Harte
e4426dc952
Introduce calculate EA steps.
2022-04-29 20:30:48 -04:00
Thomas Harte
9359f6477b
Start drafting an Executor.
2022-04-29 17:12:06 -04:00
Thomas Harte
a103f30d51
Attempt to game out LEA, PEA. Add various special MOVEs.
2022-04-29 14:43:58 -04:00
Thomas Harte
78b60dbd1a
Evict MOVEM and MOVEP, enable TRAP and TRAPV, complete CHK.
2022-04-29 14:43:30 -04:00
Thomas Harte
cde75a1c00
Make steps more visible.
2022-04-29 11:26:39 -04:00
Thomas Harte
b9d243552c
MOVEs don't read from operand 2.
2022-04-29 11:22:06 -04:00
Thomas Harte
85242ba896
Add to Xcode project, template on Model as per CLR being odd. Fill in some obvious answers.
2022-04-29 11:10:14 -04:00
Thomas Harte
d16dab6f62
Starts introducing a sequencer, to resolve responsibility of perform
.
2022-04-29 10:40:19 -04:00
Thomas Harte
8066b19f93
Correct typos.
2022-04-29 07:57:02 -04:00
Thomas Harte
abd2a831a3
Added a further ambiguity.
2022-04-29 05:08:44 -04:00
Thomas Harte
824d3ae3f7
Conclusion: a union does produce better code.
...
(But needn't be so verbose)
2022-04-29 04:51:02 -04:00
Thomas Harte
727a14c6f9
Add notes for myself on decisions yet to make.
2022-04-29 03:53:17 -04:00
Thomas Harte
13d20137d3
Tackle two lingering references to exception_handler.
2022-04-29 03:38:23 -04:00
Thomas Harte
9680566595
Include in automated build, temporarily.
2022-04-28 20:42:44 -04:00
Thomas Harte
33c9ea2cf7
A flow controller feels more natural than an exception handler.
2022-04-28 20:42:04 -04:00
Thomas Harte
1d8d2b373b
Port all simple instruction bodies.
2022-04-28 16:55:47 -04:00
Thomas Harte
611b472b12
Add evaluate_condition
, to check standard 68000 condition codes.
2022-04-28 16:54:57 -04:00
Thomas Harte
bb73eb0db3
Start working on an isolation of 68000 instruction execution.
2022-04-28 15:35:40 -04:00
Thomas Harte
39261436c8
Remove unused type alias.
2022-04-27 19:53:32 -04:00
Thomas Harte
5e355383df
Correct SIB test.
2022-04-27 19:53:15 -04:00
Thomas Harte
9cbbb6e508
Adjust path to match namespace; add to Qt project.
2022-04-27 08:05:36 -04:00
Thomas Harte
8902bb1af0
Include size and supervisor flag in Preinstruction.
2022-04-26 19:44:02 -04:00
Thomas Harte
baf1bd354d
Avoid packing/unpacking of operands.
2022-04-26 19:37:07 -04:00
Thomas Harte
539c2985aa
Fill in size table, define quick
to return a uint32_t
.
2022-04-26 12:30:14 -04:00
Thomas Harte
5c356e15b5
Completes requires_supervisor
.
2022-04-25 20:05:45 -04:00
Thomas Harte
8ff0b71b29
Subsume MOVEQ into MOVE.l; add missing invalid_operands.
2022-04-25 19:58:19 -04:00
Thomas Harte
8f8f201186
Complete transition to simple AND-based verification.
2022-04-25 16:23:16 -04:00
Thomas Harte
0c688757b0
Adapt the last of the MOVEs, TAS, NOT, SUB and TST.
2022-04-25 16:05:44 -04:00
Thomas Harte
5778e92e70
Adapt MOVE, DIV, MUL, OR.
2022-04-25 15:43:25 -04:00
Thomas Harte
3268ea42ff
Translate SUB, PEA.
2022-04-25 12:41:41 -04:00
Thomas Harte
1538500903
Add enough to make AND masks the default case.
2022-04-25 12:30:44 -04:00
Thomas Harte
6ca30a16ca
Update JMP, JSR.
2022-04-25 12:05:07 -04:00
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