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12,979 Commits 3 Branches 145 Tags
02a10ef65165edede68ea8a905ade3248ff032c8
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248 Commits

Author SHA1 Message Date
Thomas Harte db26a26926 Fix decoding of PUSH immediate. 2025-03-27 13:07:13 -04:00
Thomas Harte 1551fbeb1f Make some stab at descriptor fetch. 2025-03-27 12:50:50 -04:00
Thomas Harte d5c53ca624 Set A20 line properly. 2025-03-26 21:51:43 -04:00
Thomas Harte e264375a97 Attempt to reintroduce 80286 support (as was). 2025-03-25 09:24:55 -04:00
Thomas Harte fd31d07f41 Begin division of memory into linear and segmented mappings. 2025-03-24 22:58:19 -04:00
Thomas Harte fac15f5539 Introduce a linear-memory holder. 2025-03-24 21:23:08 -04:00
Thomas Harte 6ad88101f1 Saunter up to a circular issue: segments needs memory access. 2025-03-24 17:31:17 -04:00
Thomas Harte c1d2c159f3 Reenable backdoor AT. 2025-03-21 11:22:09 -04:00
Thomas Harte 48d8fdb875 Adopt descriptors in memory handling. 2025-03-21 10:18:26 -04:00
Thomas Harte 4ca47be8a8 Add const. 2025-03-15 22:21:35 -04:00
Thomas Harte f9d9dc68b7 Factor out BIOS installation. 2025-03-15 22:19:26 -04:00
Thomas Harte 97d237eed0 Support real IBM BIOS, either in odd/even or complete form. 2025-03-15 21:13:31 -04:00
Thomas Harte 13b32b269c Force the AT in debug mode only. 2025-03-12 12:47:04 -04:00
Thomas Harte 592cea6a27 Tweak timing to once again pass BIOS controller test. 2025-03-12 12:31:29 -04:00
Thomas Harte 98f20c57c1 Attempt to support reset-by-8042, resulting in boot loop. 2025-03-08 00:47:56 -05:00
Thomas Harte 4e882e7d4d Accept uint8_ts only. 2025-03-07 23:36:47 -05:00
Thomas Harte d7b46ee03c Adopt compact form. 2025-03-07 14:23:50 -05:00
Thomas Harte 2c165c3873 Avoid repetition of 'PC'. 2025-03-07 13:44:49 -05:00
Thomas Harte 9135402d9e Extract keyboard controller. 2025-03-07 13:43:21 -05:00
Thomas Harte 53135ec2c0 Extract floppy controller, speaker. 2025-03-07 13:39:45 -05:00
Thomas Harte 7d84d6909e Add TODO. 2025-03-06 22:16:51 -05:00
Thomas Harte 9224645473 Add second PIC. 2025-03-06 22:15:58 -05:00
Thomas Harte 6717771f9a Rejig doubling of DMA controllers. 2025-03-05 23:02:08 -05:00
Thomas Harte 99e0902b74 Reconnect speaker. 2025-03-05 21:51:50 -05:00
Thomas Harte c7f2805b05 Install the AT keyboard controller. 2025-03-05 21:28:22 -05:00
Thomas Harte 6e1909647b Reformat; hatch separate AT keyboard controller; print POST codes. 2025-03-05 21:08:53 -05:00
Thomas Harte 53a8f65ecc Merge branch 'master' into FurtherATDMA 2025-03-05 16:03:46 -05:00
Thomas Harte 82419e6df1 Revoke 'ForceAT', **again**. 2025-03-05 14:34:44 -05:00
Thomas Harte faa76ee017 Not quite accurate, but segment out keyboard writes for the AT. 2025-03-05 14:33:55 -05:00
Thomas Harte ba7b1c47b9 Improve constness, reduce trips to system clock. 2025-03-05 14:17:31 -05:00
Thomas Harte 367c2b568a Attempt to offer expanded DMA top bytes. 2025-03-04 22:51:17 -05:00
Thomas Harte cacacc00f6 Undo ForceAT. 2025-03-04 20:56:38 -05:00
Thomas Harte 1b94cfc72c Add nullptr backstop. 2025-03-04 20:46:10 -05:00
Thomas Harte 89fd41124f Template various bits of hardware on machine type. 2025-03-04 17:08:49 -05:00
Thomas Harte 4e3b0ae3c1 Resolve type warnings in ENTER, spurious new lines in PC. 2025-03-04 14:10:28 -05:00
Thomas Harte 9df6d535e2 Patch up enough to get an 80286 performer compilable. 2025-03-04 13:52:02 -05:00
Thomas Harte 71b481d3be Bake PC model into template. 2025-03-04 11:45:56 -05:00
Thomas Harte 2710acaae6 Avoid repeating CPU model, normalise member names. 2025-03-04 11:35:11 -05:00
Thomas Harte d79135ea01 Eliminate non-functional workaround. 2025-03-04 11:30:43 -05:00
Thomas Harte 805ce36592 Fix spelling, namespace. 2025-03-04 11:01:07 -05:00
Thomas Harte 07fa56c53d Get heavier with GCC workarounds. 2025-03-04 10:56:45 -05:00
Thomas Harte 16f850cbcc Attempt to eliminate Decoder8086. 2025-03-04 10:13:57 -05:00
Thomas Harte b9177e50d3 Commute 'speed' to 'model approximation'. 2025-03-04 09:57:34 -05:00
Thomas Harte ea0799c546 Transition off printf. 2025-03-03 23:17:52 -05:00
Thomas Harte 0823fc32fe Eliminate file-relative paths. 2025-02-28 12:30:25 -05:00
Thomas Harte 0005229c1e Improve header. 2024-12-29 22:21:38 -05:00
Thomas Harte 31c878b654 Merge pull request #1424 from TomHarte/InstructionSetFormatting 
Improve formatting, `const`ness in instruction sets.
 2024-12-01 20:24:55 -05:00
Thomas Harte 8b88d1294d Remove errant spaces. 2024-12-01 09:04:32 -05:00
Thomas Harte 7248470950 Roll formatting and const tweaks into Inputs. 2024-11-30 18:57:56 -05:00
Thomas Harte 6f0ad0ab71 Add an empty Archimedes shell. 2024-03-04 12:06:43 -05:00