31 Commits

Author	SHA1	Message	Date
Josh Dersch	2c99250ded	Small tweaks to display controller in low-res mode; added support for Diablo 44 disks, added ST-76 on Diablo 44.	2016-03-16 17:07:57 -07:00
Josh Dersch	dc0a85aed8	Readme updates, installer updates. A couple of smallish (10%) performance enhancements.	2016-03-14 16:50:41 -07:00
Josh Dersch	a79fd5f016	Implemented basic installer for Contralto. Fixed a couple of small display rendering issues.	2016-03-11 11:38:35 -08:00
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	41b6a76b2a	Implemented the 3K control RAM configuration, fixed bug in SWMODE (should use modified NEXT, not the NEXT from the uinstruction to determine bank.)	2016-03-03 16:28:05 -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	8463ef19d0	Ethernet! A really hacky version of Ethernet. Can play MazeWar, but still needs work.	2016-01-15 14:44:24 -08:00
Josh Dersch	898abdc906	Minor fixes for debugger interface and disassembler; started hooking Ethernet interface up to real host Ethernet (because MazeWar.)	2016-01-12 17:29:42 -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	2c2ea68a63	Implemented disk writes (roughly). Bravo now works. DIEX passes with writes enabled. Begun investigation into drive selection logic. Added Mesa source code with annotation, is displayed in ROM1 tab.	2015-12-02 12:39:10 -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	30ecfa6900	Support for CRAM reading/loading, SWMODE support. Rough debugger UI for viewing / disassembling microcode in ROM1, RAM0 banks (ugly). Minor performance improvements.	2015-11-13 16:50:18 -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	e9a13529c1	Implemented extended memory and fixed issues with S register 0 (which loads M).	2015-11-05 17:29:41 -08:00
Josh Dersch	a689b7185a	Fixed: Disk address (KADR) and Disk Data (KDATA) registers behave (more) correctly; in particular record commands hare processed properly and KDATA handles reads/writes more sanely. Fixed checksum calculation; due to above changes microcode now correctly validates checksums and boot progresses to read in an entire track's worth of data before dying with a "check failure" error.	2015-11-04 16:49:42 -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	c0f23685b1	Fixed instruction register decoding SFs for Emulator Task; first stab at handling (most) DNS<- operations including setting SKIP and CARRY flip flops. BLT now succeeds, Nova code in bootstrap is running.	2015-10-29 17:02:22 -07:00
Josh Dersch	2918ede7ce	Some fixes to emulator task dispatch functions, added Nova disassembler, nova instruction single-step and nova instruction breakpoint support. Penciled in DNS (Nova Shift) support in emulator task. Added skeleton for Logging.	2015-10-28 14:11:04 -07:00
Josh Dersch	1dfd1e0be9	Hooked disk emulation up to disk images (currently hardcoded). Fixed a small bug in IDISP, tiny stub of Nova disassembler added.	2015-10-26 17:46:43 -07:00
Josh Dersch	3b29addb98	Disk sector reads now work correctly, and checksums are correctly calculated. Still feeding dummy sector data.	2015-10-23 16:07:07 -07:00
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