6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2026-04-19 02:22:39 +00:00
Code Issues Projects Releases Wiki Activity
4,889 Commits 3 Branches 145 Tags
abe55fe95081f6d7e27cc51255a807b68d3ddca2
Commit Graph

661 Commits

Author SHA1 Message Date
Thomas Harte abe55fe950 Adds Timer 1 toggling of PB7. 2019-06-03 15:39:20 -04:00
Thomas Harte da2b190288 Stores expected bit length. 2019-06-01 19:08:29 -04:00
Thomas Harte 48d837c636 Attempts to respond more sensibly to various queries. 
Including adding a 1-second delay on motor off.
 2019-06-01 18:43:47 -04:00
Thomas Harte 723137c0d4 With some time additions to the 6522, starts wiring in Macintosh audio. 
The audio buffer is also the disk motor buffer, so this is preparatory to further disk work.
 2019-06-01 14:39:40 -04:00
Thomas Harte 4197c6f149 Attempts to make some further semantic sense of the various IWM controls. 2019-05-30 22:17:49 -04:00
Thomas Harte 4632be4fe5 Wires up the final IWM signal, SEL, preparatory to an implementation. 2019-05-30 12:08:00 -04:00
Thomas Harte 8293b18278 Adds a TODO on what I think might be an incorrect implementation? 2019-05-08 15:06:40 -04:00
Thomas Harte 2ba0364850 Adds the shift register interrupt. 2019-05-08 15:02:07 -04:00
Thomas Harte 2e7bc0b98a Attempts the shift register. 2019-05-08 14:54:40 -04:00
Thomas Harte 8278809383 Attempts to get more rigorous on communicating outward control line changes. 2019-05-08 13:33:22 -04:00
Thomas Harte 4367459cf2 Takes a first go at handshake and pulse modes. 2019-05-08 12:48:29 -04:00
Thomas Harte 254132b83d Eliminates 6522Base in pursuit of working handshake modes. 
Specifically: this means that the places from which the BusHandler may be called are more numerous.
 2019-05-08 12:35:17 -04:00
Thomas Harte 7e6d4f5a3e Adds emulation of the real-time clock. 2019-05-08 00:12:19 -04:00
Thomas Harte ce099a297a Eliminates RAM writes in ROM area. 
I no longer think that logic is correct.
 2019-05-07 17:16:22 -04:00
Thomas Harte 96facc103a Adds an IWM shim and corrects graphics output. 
... now that there is some.
 2019-05-05 21:55:34 -04:00
Thomas Harte 62a1d69cee Implements proper AY IO output behaviour. 2019-03-05 20:20:26 -05:00
Thomas Harte d97348dd38 Eliminates dangling uses of printf. 2019-03-02 18:07:05 -05:00
Thomas Harte 7030abca97 Corrects PAL colours for the Vic-20. 2019-02-25 19:28:52 -05:00
Thomas Harte e5addb27ec Corrects log output. 2019-02-18 20:49:01 -05:00
Thomas Harte 2ef6d4327c Resolves further build warnings. 2019-01-13 20:37:50 -05:00
Thomas Harte 248a8efd2f Corrects declared pixel clock GCD. 2019-01-06 16:32:13 -05:00
Thomas Harte 601961deeb Wires through set_display_type. 2018-11-29 20:44:21 -08:00
Thomas Harte 64465f97b6 Starts towards reintroducing the proper mechanisms for selecting a display type at runtime. 2018-11-28 17:53:33 -08:00
Thomas Harte 5618288459 Reduces visible area, producing a tighter crop. 2018-11-25 22:32:12 -05:00
Thomas Harte ee89be6730 Removes many stray spaces. 2018-11-23 22:32:32 -05:00
Thomas Harte 770d7e90e9 Removes stale sampling functions. 2018-11-22 22:47:29 -05:00
Thomas Harte b9aca39eb0 Reintroduces Vic-20 output. 
Resolving errors in shader generation while I'm here.
 2018-11-22 22:43:42 -05:00
Thomas Harte c5d9bf2c12 Optimises slightly for black borders. 
Specifically to help to debug proper display of unused lines in the new scan target.
 2018-11-17 18:23:42 -05:00
Thomas Harte 15b1176841 Ensures no border output if space is not allocated. 2018-11-14 22:32:33 -05:00
Thomas Harte 9dff13cbbf Re-establishes output from the machines with 9918s and derivatives. 2018-11-14 22:25:19 -05:00
Thomas Harte 6d277fecd5 Makes ScanTarget a little more communicative and orthogonal. 2018-11-10 19:52:57 -05:00
Thomas Harte f6562de325 Possibly adds enough for the Electron and ZX80 to start outputting dummy lines. 
Let's see!
 2018-11-03 23:40:39 -04:00
Thomas Harte b40211d2c0 Starts to bend 'CRTMachine' to a world farther from owning the GPU relationship. 2018-11-03 21:54:25 -04:00
Thomas Harte da4d883321 Adds first, incomplete attempts to talk to a ScanTarget from the CRT. 
Does away with the hassle of `unsigned` while I'm here; that was a schoolboy error.
 2018-11-03 19:58:44 -04:00
Thomas Harte f65d80b7d1 Ensures offset and flags are initialised to 0. 
This prevents a potential crash at startup.
 2018-10-29 22:09:32 -04:00
Thomas Harte 8652d8b23d (Mostly) randomises the 9918 start position. 2018-10-26 21:02:56 -04:00
Thomas Harte e02aa885d8 Testing against the ColecoVision suggests this is probably always 7. 2018-10-26 20:59:12 -04:00
Thomas Harte bb09762029 Introduces extra delays to VRAM access. 2018-10-26 20:19:08 -04:00
Thomas Harte 05a5c7120e Shunts CRAM dots into their proper place. 2018-10-26 20:06:51 -04:00
Thomas Harte 521d603902 Adds a first attempt at CRAM dot output. With a TODO. 2018-10-26 19:26:46 -04:00
Thomas Harte 916710353a Makes it explicit that I want the reference. 2018-10-25 23:18:34 -04:00
Thomas Harte 53b00dea3f Adds missing include. 2018-10-25 23:12:41 -04:00
Thomas Harte 0587b9f257 Edges to within millimetres of CRAM dots. 
... but all the way up to bedtime.
 2018-10-25 23:12:03 -04:00
Thomas Harte 5accd8cf08 Fixes broken implementation of 9918 multicolour mode. 2018-10-24 22:40:38 -04:00
Thomas Harte a8645f80bf Introduces 'non-exclusive' emulator-space keyboards. 
i.e. sets of keys that don't amount to an entire keyboard in the modern sense. Experimentally used by the Master System for its reset key.
 2018-10-24 21:59:30 -04:00
Thomas Harte d61c3a9442 Fixes sprite list termination in 224- and 240-line modes. 2018-10-24 19:53:46 -04:00
Thomas Harte 2cdeaa2575 Moves misplaced bracket. 2018-10-23 22:37:19 -04:00
Thomas Harte 286783e880 Accepts GCC's suggestion of extra clarity brackets. 2018-10-23 22:36:23 -04:00
Thomas Harte 00e7958a97 Separates request for an SMS2 VDP from current graphics mode. 
Thereby fixes various minor segments of Codemasters games.
 2018-10-23 22:19:45 -04:00
Thomas Harte 2f995eb622 Adjusts vertical timing for display height. 2018-10-23 21:20:44 -04:00