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11,708 Commits 9 Branches 120 Tags 496 MiB
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920 Commits

Author SHA1 Message Date
Thomas Harte
e9e1db7a05 Change LDR writeback to destination. 2024-03-10 22:29:19 -04:00
Thomas Harte
fbc273f114 Add invented model for tests. 2024-03-10 21:45:56 -04:00
Thomas Harte
a4cf86268e Provide full access to stored registers. 2024-03-09 15:11:04 -05:00
Thomas Harte
d059e7c5d8 Disallow copying. 2024-03-09 15:10:55 -05:00
Thomas Harte
fdef8901ab Double down on uint32_t. 2024-03-08 14:13:34 -05:00
Thomas Harte
ca1c3dc005 Add extra comments. 
To persuade myself in the future.
 2024-03-08 11:36:17 -05:00
Thomas Harte
fa8fcd2218 Take another swing at popcount. 2024-03-07 14:28:31 -05:00
Thomas Harte
2a36d0fcbc Adjust user-mode test. 2024-03-07 14:00:38 -05:00
Thomas Harte
0e92885ed5 Fix ad hoc popcount; ARM does carry 'backwards'. 2024-03-07 13:27:41 -05:00
Thomas Harte
f5225b69e5 Add note to self. 2024-03-07 11:48:44 -05:00
Thomas Harte
15ee84b2eb Fix MUL ambiguity. 2024-03-07 11:45:39 -05:00
Thomas Harte
a0f0f73bde Fix MOV as unconditional branch. 2024-03-07 10:31:26 -05:00
Thomas Harte
108a056f1c Execution now runs into a prefetch abort loop. 2024-03-06 15:05:24 -05:00
Thomas Harte
fe467be124 Further stick to existing type. 2024-03-05 10:56:09 -05:00
Thomas Harte
ba5f142515 Take further stab at TEQ PC, etc. 2024-03-05 10:55:44 -05:00
Thomas Harte
ed586e80bc Don't write to the PC with logical operations. 2024-03-05 09:32:35 -05:00
Thomas Harte
871c5467d7 Avoid sign change. 2024-03-05 09:31:42 -05:00
Thomas Harte
1b7c3644f4 Eliinate meaningless 'const'. 2024-03-04 14:09:27 -05:00
Thomas Harte
0cdca12e06 Resolve type mismatches. 2024-03-04 13:53:46 -05:00
Thomas Harte
61d4c69e45 Fix template parameter reference. 2024-03-04 13:25:40 -05:00
Thomas Harte
79865e295b Avoid ambiguous template parameter; use standard type. 2024-03-04 12:20:40 -05:00
Thomas Harte
230e9c6327 Obscure active. 2024-03-03 21:43:30 -05:00
Thomas Harte
11c4d2f09e Add further exposition. 2024-03-03 21:38:27 -05:00
Thomas Harte
f2db1b4aae Merge branch 'TiedDown' into PositiveExpression 2024-03-03 21:31:26 -05:00
Thomas Harte
b42a6e447d Tie down more corners. 2024-03-03 21:29:53 -05:00
Thomas Harte
8a83d71560 Fix condition. 2024-03-03 14:40:05 -05:00
Thomas Harte
9fd7d5c10f Switch test and meaning. 2024-03-03 14:34:21 -05:00
Thomas Harte
4e7963ee81 Clarify PC semantics; remove faulty underscore. 2024-03-03 14:11:02 -05:00
Thomas Harte
99f0233b76 Fix immediate offset and data processing operation. 2024-03-02 23:27:37 -05:00
Thomas Harte
62da0dee7f Unify reads. 2024-03-02 23:15:17 -05:00
Thomas Harte
1663d3d9d1 Introduce disaster of an attempted test run. 2024-03-02 22:40:12 -05:00
Thomas Harte
37499d493a Fix model name. 2024-03-02 21:47:09 -05:00
Thomas Harte
e6f77a9b80 Add logical right-shift tests. 2024-03-01 18:06:54 -05:00
Thomas Harte
42ba6d1281 Relocate execution code appropriately. 2024-03-01 15:02:47 -05:00
Thomas Harte
5759798ad7 Deal with downward write order. 2024-02-29 14:34:20 -05:00
Thomas Harte
fd2c5b6679 Make a quick first attempt at memory accesses. 2024-02-29 10:18:09 -05:00
Thomas Harte
93b4008f81 Localise flags, detect improper carry write. 2024-02-28 21:28:19 -05:00
Thomas Harte
904462b881 Regularise data transfers. 2024-02-28 21:23:57 -05:00
Thomas Harte
3b320bcdef Update coprocessor interface. 2024-02-28 14:43:31 -05:00
Thomas Harte
3368bdb99f Document exceptions, partly for my future self. 2024-02-28 14:34:31 -05:00
Thomas Harte
4d400c3cb7 Add easy exceptions. 2024-02-28 14:25:12 -05:00
Thomas Harte
474f9da3c2 Add banked registers. 2024-02-28 14:09:05 -05:00
Thomas Harte
c49b26701f Relocate and clarify barrel shifts. 
With a view to independent testing.
 2024-02-28 13:53:13 -05:00
Thomas Harte
9b42d35d56 Update interface. 2024-02-28 11:42:33 -05:00
Thomas Harte
645152a1fd Implement branch. 2024-02-28 11:33:28 -05:00
Thomas Harte
487ade56ed Add basic multiply. 2024-02-28 11:27:27 -05:00
Thomas Harte
60d1b36e9a Implement registers side. 2024-02-28 10:25:14 -05:00
Thomas Harte
5a48c15e46 Add scheduler side of PC writeback. 2024-02-28 10:15:23 -05:00
Thomas Harte
d6bf1808f9 Take a swing at PC-as-input. 2024-02-28 09:33:05 -05:00
Thomas Harte
b676153d21 State intention to merge status with other registers. 2024-02-27 15:36:34 -05:00
Thomas Harte
a3339cf882 Fix indentation. 2024-02-27 15:30:51 -05:00
Thomas Harte
4255283e33 Deal with conditionality up front. 2024-02-26 21:36:23 -05:00
Thomas Harte
16e827bb2c Add basic arithmetics. 2024-02-26 21:27:58 -05:00
Thomas Harte
580f402bb6 Muddle further towards data processing. 2024-02-26 14:50:45 -05:00
Thomas Harte
030dda34f0 Start poking at implementation. 2024-02-26 14:30:26 -05:00
Thomas Harte
481b6d0e69 Sketch out some status flags. 2024-02-25 22:01:51 -05:00
Thomas Harte
a88d41bf00 List the flags. 2024-02-25 15:21:54 -05:00
Thomas Harte
73d2acca12 Moderately improve comments. 2024-02-22 11:20:22 -05:00
Thomas Harte
d205e538e1 Accept the C++ I'm in; clarify and simplify interface. 2024-02-22 10:16:54 -05:00
Thomas Harte
6577f68efc Complete instruction set; consolidate mapper. 2024-02-21 15:32:27 -05:00
Thomas Harte
e986ae2878 Add coprocessor data operations and register transfers. 2024-02-21 15:25:57 -05:00
Thomas Harte
b2696450d5 Bring forwards single data transfers. 2024-02-21 14:51:51 -05:00
Thomas Harte
2bbaf73aa2 Delete was is now duplicated. 2024-02-21 14:18:41 -05:00
Thomas Harte
0fe2c1406b Start mutating towards a form that owns the switch. 2024-02-21 14:17:01 -05:00
Thomas Harte
954d920b9e Extend what's held in the operation enum. 2024-02-20 14:14:18 -05:00
Thomas Harte
57b45076c5 Start dealing with per-instruction fields. 2024-02-17 22:13:51 -05:00
Thomas Harte
d639dc8bcb Hit up some more = default opportunities. 2024-02-17 15:42:31 -05:00
Thomas Harte
9a74ab6a8e Switch to actual mnenomics, temporarily(?) shrink table. 2024-02-17 15:41:57 -05:00
Thomas Harte
4c53414cc3 Merge branch 'master' into ARMDecoding 2024-02-17 08:14:18 -05:00
Thomas Harte
bc5727af14 Switch to = default. 2024-02-16 21:50:15 -05:00
Thomas Harte
bd0a15c054 Start working on ARM2 decoding. 2024-02-16 21:36:07 -05:00
Ryan Carsten Schmidt
d811501421 Compatibility fixes in Markdown files. 
Improve compatibility with some Markdown readers like MacDown by adding
blank lines before lists. Blank lines around headers were added for
consistency. One header level was fixed. One code block was fixed.
 2024-01-27 13:24:35 -06:00
Thomas Harte
b61317ba7e Continue conversion of logging. 2024-01-19 22:02:26 -05:00
Thomas Harte
a3d37640aa Switch include guards to #pragma once. 2024-01-16 23:34:46 -05:00
Thomas Harte
795529ef97 Resolve sizing types. 2023-12-24 14:26:15 -05:00
Thomas Harte
cbd4f7965b Acknowledge one further 16-bit assumption. 2023-12-24 14:22:26 -05:00
Thomas Harte
13631fb7bc Resolve various 32->16 conversion warnings. 2023-12-24 14:14:53 -05:00
Thomas Harte
3e328bed61 Be overt about jump size, albeit without internal rigour. 2023-12-24 14:11:41 -05:00
Thomas Harte
084efdeb2d Resolve further type conversion warnings. 2023-12-05 16:54:11 -05:00
Thomas Harte
dd04909d58 Resolve some further warnings. 2023-12-05 16:43:55 -05:00
Thomas Harte
f50c45cc1a Treat 'invalid' as a silent failure. 2023-12-01 15:35:51 -05:00
Thomas Harte
ec2d878e3f End run around the template. 
I have yet to get any insight whatsoever on the reason for GCC's failure here and won't have access to a suitable test
machine for a while so all I have for testing is the arduous CI cycle.
 2023-11-17 17:02:46 -05:00
Thomas Harte
a0ca5e6cdc Remove outdated comment. 2023-11-17 10:38:11 -05:00
Thomas Harte
83c8f9996e Switch back to the natural type. 2023-11-17 10:27:38 -05:00
Thomas Harte
3f27338b2c New guess: the definition of size_t varies? 2023-11-16 23:46:22 -05:00
Thomas Harte
fbe02e3ad5 Randomly try a different explicit instantiation. 2023-11-16 23:37:37 -05:00
Thomas Harte
4b730c26d0 Satisfy GCC warning. 2023-11-16 23:31:51 -05:00
Thomas Harte
33486e69bf Remove CI trap. 2023-11-16 15:30:43 -05:00
Thomas Harte
1c7bb6d759 Add CI diagnosis trap. 2023-11-16 15:25:42 -05:00
Thomas Harte
25f0a373f3 Don't sign-extend ports (!). 2023-11-16 11:17:12 -05:00
Thomas Harte
233ec7b818 Soften some warnings. 2023-11-16 10:57:17 -05:00
Thomas Harte
7323af0b41 Avoid shadowing template parameter. 2023-11-15 11:10:01 -05:00
Thomas Harte
e927fd00d8 Do just enough to include x86 code in the main build. 2023-11-15 11:01:28 -05:00
Thomas Harte
f83d2a8740 Take a swing at ENTER. 2023-11-14 16:23:24 -05:00
Thomas Harte
aafa7de536 Implement LEAVE, almost. 2023-11-14 11:39:36 -05:00
Thomas Harte
ac826f90c3 Formalise a separate manager of segments. 2023-11-14 10:56:00 -05:00
Thomas Harte
6c405680f2 Implement PUSHA, POPA. 2023-11-14 10:42:06 -05:00
Thomas Harte
1552500b10 Implement BOUND. 2023-11-13 22:33:46 -05:00
Thomas Harte
60cec9fc67 Expand commentary. 2023-11-13 11:45:17 -05:00
Thomas Harte
3a782faaf3 Ensure shoutouts upon LDS, LES and any far jump/call/int. 2023-11-10 22:58:59 -05:00