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Commit Graph

7 Commits

Author SHA1 Message Date
Virgil Dupras
5ca99ad410 trs80: implement a standalone RS-232 driver
No more relying on the TRS-DOS driver!
2020-12-25 16:54:02 -05:00
Virgil Dupras
20c38e5cd0 trs80: implement Grid shim in video driver
Loading the grid subsystem on top of the TRS-80 driver, which is
an interface to its ROM BIOS, would be counter-productive because
the BIOS already has the concept of cursor.

However, VE needs the Grid interface, so we implement a shim for it.

Again, all this work (and the re-assembly that it entails) has been
done from within Collapse OS on the TRS-80!
2020-12-22 18:24:30 -05:00
Virgil Dupras
80d1b59050 Add words |M and |L
Splitting a word into MSB/LSB pairs happens often and is worth, I
think, native words. Also, I'm going to need it in the upcoming
commits.
2020-12-07 20:11:49 -05:00
Virgil Dupras
1e8f957910 emul/trs80: implement floppy emulation
So far, only the first 400 sectors of the disk image are accessible.

TODO: add keybindings to swap floppies on the emulated machine.
2020-12-06 19:52:18 -05:00
Virgil Dupras
23885dac33 emul: add TRS-80 emulator
Not complete yet, but has @KEY and @DSP, enough to get prompt.
2020-12-05 22:04:22 -05:00
Virgil Dupras
95ab1ad588 Transform "blk/" folders into "blk.fs" text files
Working in "blk/" folder from a modern system is harder than it
should be. Moving blocks around is a bit awkward, grepping is a
bit less convenient than it could be, git blame has troubles
following, etc.

In this commit, we modify blkpack and blkunpack to work with single
text files with blocks being separated by a special markup.

I think this will make the code significantly more convenient to
work into.
2020-11-14 18:34:15 -05:00
Virgil Dupras
7001446212 Complete overhaul of recipes
Recipes contain bits and pieces of hardware-related knowledge, but
these bits feel sparse. I've been wanting to consolidate hardware-
related documentation for a while, but always fell at odds with the
recipes organisation.

We don't have recipes anymore, just a /doc/hw section that contains
hardware-related documentation which often translate to precise
instructions to run Collapse OS on a specific machine.

With this new organisation, I hope to end up with a better, more
solid documentation.
2020-10-30 20:39:39 -04:00