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Commit Graph

6975 Commits

Author SHA1 Message Date
Thomas Harte
5f807b6e47 Ensures that the operand is the only thing failing in decoding of the first instruction. 2021-01-08 23:02:06 -05:00
Thomas Harte
718f950071 Implements 80 and 81. 2021-01-08 22:50:59 -05:00
Thomas Harte
68fe16a092 Marks intent for operand/displacement. 2021-01-08 22:45:27 -05:00
Thomas Harte
97a64db5e0 Edges closer towards full x86 recording. 2021-01-08 22:38:56 -05:00
Thomas Harte
86577b772b Rethinks size; packs all captured information into an x86 Instruction.
Albeit that operand and displacement are't yet captured. Or extractable.
2021-01-08 22:22:07 -05:00
Thomas Harte
306df7554e Starts trying to find a good packing for X86 instructions.
To consider: do I really need `size` on every instruction?
2021-01-08 21:33:01 -05:00
Thomas Harte
30c2c0f050 Attempts to complete operand recognition. 2021-01-07 21:59:00 -05:00
Thomas Harte
205649cac2 Decodes 8e. 2021-01-07 21:36:05 -05:00
Thomas Harte
fd49b72e31 Simplifies macros, implements d0, d1, d2 and d3. 2021-01-07 21:30:01 -05:00
Thomas Harte
995904993d Fills in 8f, c2, c3, ca and cb.
Also switches to RETN and RETF for near/far RET as this seems idiomatic.
2021-01-06 21:18:24 -05:00
Thomas Harte
17cbba85fc Formalises what's missing in terms of opcodes and fills in some blanks. 2021-01-05 21:47:12 -05:00
Thomas Harte
9d7d45338f Ostensibly gets the instruction stream correct for test case 1.
Subject to operand and displacement currently being absent, and likely inconsistencies in field population, most of which are omitted from the Instruction anyway.
2021-01-05 21:34:35 -05:00
Thomas Harte
3b55d3f158 Nudges up to a need to decode operation from the ModRegRM byte. 2021-01-05 21:25:12 -05:00
Thomas Harte
fda2293d6b Improves constness. 2021-01-04 22:36:39 -05:00
Thomas Harte
d4095b1b3b Merge branch 'master' into DecodersAhoy 2021-01-03 20:56:47 -05:00
Thomas Harte
ed41154338
Merge pull request #862 from MaddTheSane/madds-patch-1
Madd's improvements
2021-01-03 20:53:39 -05:00
Thomas Harte
38bca5f0f0 Finally runs into the wall of trying to merge operands and offsets. 2021-01-03 20:08:13 -05:00
Thomas Harte
a8738b533a Switch for now to block-level decoding.
It's easier to step debug.
2021-01-03 20:07:46 -05:00
Thomas Harte
29cf96c703 Adds decoding of disp16 RETs. 2021-01-03 19:39:28 -05:00
Thomas Harte
782dc3d046 Distinguishes inter- and intra-segment RET. 2021-01-03 19:37:37 -05:00
Thomas Harte
0ae217f51d Improves exposition, adds decoding of the 0xbx patch of MOVs. 2021-01-03 19:33:16 -05:00
Thomas Harte
adcb2e03e8 Attempts to consolidate source/destination ordering. 2021-01-03 17:28:29 -05:00
Thomas Harte
11b6c1d4b5 Proceeds to three instructions correctly decoded. 'Wow'. 2021-01-03 17:03:50 -05:00
Thomas Harte
367cb1789d Starts building an x86 test. 2021-01-03 16:37:35 -05:00
Thomas Harte
adf1484ecc Introduces third test sequence, uneventfully. 2021-01-03 16:21:23 -05:00
Thomas Harte
5401ff6c78 Proactively fixes li sign extension. 2021-01-03 11:14:43 -05:00
Thomas Harte
eb8d0eefd5 Factors out some boilerplate and introduces second sequence. 2021-01-03 11:14:30 -05:00
Thomas Harte
c934e22cee Introduces a first test of PowerPC decoding.
Corrected as a result: the bcx conditional, that stdu is 64-bit only, extraction of the li field.
2021-01-02 22:47:42 -05:00
Thomas Harte
1a3effc692 Modifies contract again. This is why I'm doing this now. 2021-01-02 21:19:45 -05:00
Thomas Harte
32c942d154 Muddles drunkenly towards decoding ModRM. 2021-01-02 21:11:19 -05:00
Thomas Harte
9c5dc0ed29 Deferring ModRM work, proceeds to 0x9f. 2021-01-02 19:29:43 -05:00
Thomas Harte
290972cedf Adds health warning. 2021-01-02 19:16:21 -05:00
Thomas Harte
dc9d370952 Does the easier part of the easier half of 8086 decoding. 2021-01-02 19:16:07 -05:00
Thomas Harte
a41be61f99 Slightly fleshes out models, for a sensible beginning. 2021-01-01 17:36:47 -05:00
Thomas Harte
3d1783ddae Add exposition as to the purpose of decoders. 2021-01-01 17:32:57 -05:00
Thomas Harte
8151c8e409 Rounds out field list. 2021-01-01 16:38:40 -05:00
Thomas Harte
0ef42f93ff Further rounds out decoder. 2021-01-01 11:46:26 -05:00
Thomas Harte
d318ab4e70 Edges further onwards. 2020-12-31 21:12:36 -05:00
Thomas Harte
ebfa35c2c7 Conquers another page of instructions; adds supervisor flag. 2020-12-31 18:14:38 -05:00
Thomas Harte
db50b0fe23 Gets started on 6+10 decoding, places stake as to other fields. 2020-12-31 16:51:31 -05:00
Thomas Harte
233a69a1d8 Decodes operations for the simplest 45. 2020-12-31 16:02:52 -05:00
C.W. Betts
3749b7b776 My improvements:
Use synthesized properties for CSMissingROM.
Remove openGLView from the xib: that will quiet a warning.
Add nullability metadata to CSStaticAnalyser.
2020-12-31 13:23:46 -07:00
Thomas Harte
ed63e7ea75 Starts building out a PowerPC decoder. 2020-12-30 22:55:59 -05:00
Thomas Harte
3d79b11f92
Merge pull request #861 from TomHarte/DiskIIOtherROM
Ensure proper in-memory ordering of the b72a2c70 ROM.
2020-12-29 22:13:24 -05:00
Thomas Harte
dfe4e49110 Ensure proper in-memory ordering of the b72a2c70 ROM. 2020-12-29 22:08:48 -05:00
Thomas Harte
c5c56f9d05
Mention my manual list sorting. 2020-12-23 11:15:57 -04:00
Thomas Harte
9f0129cab8
Merge pull request #859 from MaddTheSane/gcJoystick
Initial GameController joystick support.
2020-12-16 21:39:28 -04:00
C.W. Betts
5a48e50355 Use isEqual: to compare GCController when connecting/disconnecting.
Only remove observers for GCController notifications.
2020-12-14 15:41:11 -07:00
C.W. Betts
86283b1815 Actually write the setup code. 2020-12-14 01:14:40 -07:00
C.W. Betts
a38d964f62 Initial GameController joystick support. 2020-12-13 11:23:33 -07:00