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mirror of https://github.com/livingcomputermuseum/ContrAlto.git synced 2026-01-22 10:31:01 +00:00

24 Commits

Author SHA1 Message Date
Josh Dersch
dc0a85aed8 Readme updates, installer updates. A couple of smallish (10%) performance enhancements. 2016-03-14 16:50:41 -07:00
Josh Dersch
4cbb74c033 Fixed two microcode bugs related to task switching behavior. Dance, StarWars and *SMALLTALK* work! 2016-03-09 16:05:45 -08:00
Josh Dersch
b6e43080f2 Added (temporary) code to debug floating point issue with Dance,Starwars. 2016-03-08 17:23:32 -08:00
Josh Dersch
c73fb66dee Added configuration UI. Implemented ethernet encapsulation over UDP. A few minor tweaks. 2016-02-26 17:46:50 -08:00
Josh Dersch
30ed445764 Fix for soft-reset emulator uPC and device reset; CopyDisk now executes correctly. 2016-01-11 16:16:05 -08:00
Josh Dersch
8361f287e3 Added Parity Task (for completeness' sake), fixed SWMODE bank switching logic for 2K ROM, minor tweaks. 2016-01-07 10:34:10 -08:00
Josh Dersch
0cce77c842 Fixed S register addressing (many things now working!), tweaked display (mouse displays correctly in lowres mode). Added support for committing disk changes back to disk images (done automatically when switching disks or exiting). Repaired BravoX image. 2015-12-22 15:45:56 -08:00
Josh Dersch
3c8a64bac8 Ethernet implemented, fixed a bug in "mixed" double word stores (store followed by fetch rather than two stores). Fixed a few UI issues, fixed Reset behavior. 2015-12-17 16:11:03 -08:00
Josh Dersch
b13944c81c Implemented proper video timing, basic mouse support and fixed microcode RAM loading. MARTEST now passes with flying colors; more things are running. Suspect disk timing for other failures. 2015-11-19 17:41:16 -08:00
Josh Dersch
cbcfd2b47e Minor bugfixes, introduced a new timing infrastructure and moved DiskController over to it. Minor performance improvements; now running at 110% speed. Display timing is still too slow. 2015-11-17 16:09:50 -08:00
Josh Dersch
03661fc90b Fixed display microcode and display controller. Alto display now generated 100% by microcode tasks. A few small optimizations. 2015-11-16 16:46:24 -08:00
Josh Dersch
47a2ee4b2b Implemented temporary "fake" display controller which renders Alto DCBs to the screen, bypassing the display microcode. Alto is booting! Rough keyboard implementation. 2015-11-11 16:34:44 -08:00
Josh Dersch
ca638f1d6e Initial rough implementation of Display hardware and associated tasks. Not really working. 2015-11-10 17:04:05 -08:00
Josh Dersch
e1c90dbe01 Fixed bug in carry flag on SUB operations; SUBLZ X,X now works correctly. Alto now appears to boot successfully. Skeleton of Display hardware added. 2015-11-09 17:36:26 -08:00
Josh Dersch
39f077bf7a A few fixes to DNS<- behavior and some tweaks to the disk controller. Boot code is progressing further. 2015-11-03 16:21:12 -08:00
Josh Dersch
ea5a5f22ec Improvements to Disk Word Task. 2015-10-20 15:32:26 -07:00
Josh Dersch
ee7c7fb035 Implemented more Disk functionality, fixed bug in ACSOURCE dispatch in Emulator task. 2015-09-16 16:27:16 -07:00
Josh Dersch
08d6063def Refactored Task code into separate files for readability; added breakpoint support and basic Memory window to debugger. Initial implementation (mostly stubs) of Disk hardware and Tasks. 2015-09-14 11:27:16 -07:00
Josh Dersch
24d7a5a8fe Work begun on Disk controller, stubs for keyboard and a few bugfixes and tweaks. 2015-09-04 18:03:47 -07:00
Josh Dersch
0ced1a2ef8 Built basic debugger UI and execution framework; a few bugfixes. CPU now executes uCode up until the first STARTF (unimplemented). 2015-09-01 17:06:57 -07:00
Josh Dersch
59d98d1909 Refinement to CPU, implemented very rough diassembler and began annotation of official Xerox ucode sources with PROM addresses. 2015-08-28 18:07:59 -07:00
Josh Dersch
9c3ee3afac Tweaks to ALU, CPU, Memory 2015-08-21 17:12:28 -07:00
Josh Dersch
f1ffcb0547 Implemented ALU, most of Memory state machine. 2015-08-20 18:02:01 -07:00
Josh Dersch
5719ec4815 Adding files that VS mysteriously excluded. I love tools. 2015-08-20 09:55:26 -07:00