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mirror of https://github.com/TomHarte/CLK.git synced 2024-11-23 03:32:32 +00:00
Commit Graph

2279 Commits

Author SHA1 Message Date
Thomas Harte
6913c7a018 This also can just use rom_mask_. 2017-06-11 19:29:20 -04:00
Thomas Harte
6b602c74b7 Made an attempt to support memory maps other than the unexpanded default of 1kb. 2017-06-11 19:29:02 -04:00
Thomas Harte
8116f85479 Allowed the static analyser to specify a ZX80 or 81, and a memory model. Neither is respected yet in the machine. 2017-06-11 19:12:20 -04:00
Thomas Harte
e40d553045 Bumped the tape parser up into the machine to ensure a maintained state. Temporarily disabled normally-timed tape playback. 2017-06-11 18:31:43 -04:00
Thomas Harte
2c6414ce11 Adjusted to allow inspect_waves to swallow a gap before a bit if necessary, increasing the opportunities for its call. 2017-06-11 18:31:09 -04:00
Thomas Harte
e5aea632ee Updated curly bracket placement. 2017-06-11 17:29:22 -04:00
Thomas Harte
e5b30cdfbb Attempted to ensure appropriate resumption of processing after quick-reading a tape byte. 2017-06-11 17:28:47 -04:00
Thomas Harte
ba5f34f827 Narrowed view to the centre 80% of a frame. 2017-06-11 17:24:32 -04:00
Thomas Harte
84d2feb2e6 Cleaned up and implemented fast-tape hack. I've decided it'd be better to test some other software, potentially to give multiple issues to think about, rather than sitting around with just the one. 2017-06-11 16:42:49 -04:00
Thomas Harte
d12e50eb02 Corrected "should I adjust history?" tests. 2017-06-11 16:41:34 -04:00
Thomas Harte
c2bc9a8c62 Ensured no namespace collision in double-include guards. 2017-06-11 16:41:15 -04:00
Thomas Harte
d910a4fd38 Adjusted to signal an interrupt during the refresh cycle rather than weirdly just afterwards. Which cuts video timing down by 4 cycles a line. There still might be a problem here somewhere though, as I'm getting 206 cycles/line and the internet states it should be 207.
Also: lots of printfs have grown temporarily as I try to figure out what I'm doing so wrong as to break loading.
2017-06-11 13:32:20 -04:00
Thomas Harte
db30f53ab0 Added the capacity to back-date interrupt line changes within a machine cycle, so that machines which time themselves entirely within perform_machine_cycle can still be cycle accurate on those changes. 2017-06-11 13:31:02 -04:00
Thomas Harte
50be3a24fe Sought to ensure that Mode 1 interrupts aren't happening early. Which they seem not to be. 2017-06-11 13:30:08 -04:00
Thomas Harte
256ba4028b Rejigged to eliminate semi-duplication of the is-a-file test. 2017-06-08 21:52:13 -04:00
Thomas Harte
b07af2660d Adjusted to make sure that the very end of a tape is properly measured. 2017-06-08 21:33:35 -04:00
Thomas Harte
bc0d70b2f7 Added: a shout-out when the tape has been exhausted. 2017-06-08 21:32:27 -04:00
Thomas Harte
c6e48dfd56 Given that a final gap is semantically part of describing tape contents, ensured one formally appears before declaring that the tape has ended. 2017-06-08 21:31:54 -04:00
Thomas Harte
c775db50ef Ensured no out-of-bounds accesses. 2017-06-08 21:31:03 -04:00
Thomas Harte
ee4c8b5ad2 Ensured final byte plays out. 2017-06-08 19:51:49 -04:00
Thomas Harte
d8b76e31c3 Added and improved the is-this-ZX80-stuff test. It seems some bytes are going missing in the to->from tape conversion. 2017-06-08 19:49:18 -04:00
Thomas Harte
7e10c7f9d8 Relocated the ZX80/81 concept of a 'file' out from Tape into Data, given that it's an exact duplicate of memory. 2017-06-08 19:09:51 -04:00
Thomas Harte
c47128f433 Widened tolerances and ensured zero bits aren't prematurely discarded. 2017-06-07 17:50:03 -04:00
Thomas Harte
8aab9acc10 Eliminated use of the zero level; now definitively returns a low/high input. 2017-06-07 17:39:29 -04:00
Thomas Harte
350b36df25 Wired in an attempted usage of the new tape parser. 2017-06-07 17:30:53 -04:00
Thomas Harte
dbd2944c13 Took an initial run at the ZX80/81 parser. 2017-06-07 17:27:05 -04:00
Thomas Harte
4603fa6f24 Extended explicitly to support a token of lookahead, which is pretty much what was on offer anyway. Also corrected instance variable names, as per better adoption of C++ norms. 2017-06-07 17:21:57 -04:00
Thomas Harte
60300851ea Started sketching out a tape parser for ZX80 and '81 files. I think this'll help me to verify whether the .O input is working. 2017-06-07 10:12:13 -04:00
Thomas Harte
58312ea2b7 Updated to new standardisation on curly bracket placement. 2017-06-07 10:05:43 -04:00
Thomas Harte
cb534d8b85 Corrected comment. 2017-06-07 10:05:16 -04:00
Thomas Harte
5626d35bc4 Tried flipping the bit meaning; decided at least to leave it in full-byte form. 2017-06-06 18:38:05 -04:00
Thomas Harte
4677cebf40 Rejigged to correct: spaces go after bits, not after bytes. 2017-06-06 18:29:15 -04:00
Thomas Harte
7399f3d798 Caveman debugging in place, it looks like this file is returning nonsense. 2017-06-06 18:18:55 -04:00
Thomas Harte
faeecf7665 Made sure that there's nothing but silence at the end of the tape, even if the .O file is too long. 2017-06-06 18:16:47 -04:00
Thomas Harte
63e0802f4e Ensured tape input appears on the returned value. 2017-06-06 18:16:27 -04:00
Thomas Harte
e3ee9604a5 Added comments. 2017-06-06 18:01:33 -04:00
Thomas Harte
8c66e1d99d Factored out ZX80/81 video and rejigged to ensure it will keep ticking over irrespective of whether the machine is supplying data. 2017-06-06 17:53:23 -04:00
Thomas Harte
b55579c348 Fixed usage of flush: the subclass version is definitively used. 2017-06-06 17:52:44 -04:00
Thomas Harte
ca9e8aecd6 Made a seemingly unsuccessful attempt to add tape input. 2017-06-06 10:13:32 -04:00
Thomas Harte
cc4cb45e9d Implemented keyboard input and ensured that the signal generated is marked as composite, putting the colour-suppression ball into the CRT's court. 2017-06-06 09:25:18 -04:00
Thomas Harte
ebbf6e6133 Surprisingly, I think this may actually be the correct output: stopped throwing away the I part of the refresh register and flipped black and white. 2017-06-06 09:03:09 -04:00
Thomas Harte
cba07dec7e Doubled up to display all eight pixels. To confirm that they are the wrong pixels. 2017-06-06 08:59:00 -04:00
Thomas Harte
6f7037b2b1 Made an initial stab at outputting half the correct pixels. 2017-06-06 08:55:07 -04:00
Thomas Harte
ef4b2f963d Probably more-or-less corrected. But this is all a bit too interdependent. 2017-06-05 23:52:56 -04:00
Thomas Harte
97f3ff03b6 Restored white background and attempted to correct output timing deficiencies. Incomplete success. 2017-06-05 23:50:04 -04:00
Thomas Harte
2fbc7a2869 Made a very basic attempt at getting something that at least demarcates proper graphics output. 2017-06-05 23:32:49 -04:00
Thomas Harte
4983718df7 Got to outputting something to the CRT. Should be just proper syncs and a paper background. It's not synchronising properly, so something is amiss in my timing. 2017-06-05 10:47:42 -04:00
Thomas Harte
23ca00fd9a Added memory fuzzing as a way to verify state being written by the Z80. Eventually discovered the HALT problem as fixed in the last commit, so have stripped away the caveman stuff again. 2017-06-05 10:36:07 -04:00
Thomas Harte
3df6eba237 Fixed: my HALT line wasn't actually halting. NOPs followed, but the PC just kept counting. 2017-06-05 10:35:03 -04:00
Thomas Harte
893f61b490 Attempted specifically to reproduce the 1kb ZX80 memory map in the hope of getting compact lines and in case mirroring is why I'm getting completely empty video reads. Still no action. 2017-06-05 09:38:49 -04:00