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collapseos
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16 Commits

Author SHA1 Message Date
Virgil Dupras 5e13dcedf3 Make KEY and EMIT into switch words 2020-10-28 16:00:58 -04:00
Virgil Dupras d3ec0e3a6c Use SYSVARS instead of RAM+ in core switches defs 
RAM+ is the host's setup! Use SYSVARS instead, which is the guest's
value.
 2020-10-28 15:47:49 -04:00
Virgil Dupras adea75e50a Add alias and switch word types 
I'm pretty happy about how lightweight the implementation turns
out to be.
 2020-10-28 15:02:06 -04:00
Virgil Dupras 788453b89c Simplify NL 
I think that when I added NL, I had troubles having access to CRLF's
address at boot time, which is why I had this system. But now that
CRLF is easily accessible during BOOT, we can simplify.

(and that will help us in the hopefully-upcoming change, which is
quite nice...)
 2020-10-28 11:35:32 -04:00
Virgil Dupras 68dd800bd1 Remove LIT< in favor of LIT" exclusively 
This duplicated feature existed because of bootstrapping issues
with LIT", but again, with careful threading, we can clean things
up.

We can now have a proper "Collapse OS" prompt :)
 2020-09-19 18:51:29 -04:00
Virgil Dupras 78d4d15fcf cvm: implement stack overflow error condition 2020-08-07 21:57:25 -04:00
Virgil Dupras 2d9a07d215 blkunpack: don't include trailing empty lines 
This was becoming heavy to manage.
 2020-06-23 06:52:34 -04:00
Virgil Dupras 1b5333d0b4 pcat: move all find code in _find word 
It isn't used by low level boot code anymore, so it can go there.
 2020-06-21 11:57:12 -04:00
Virgil Dupras dbd283758c Refer to BOOT and (uflw) by addr in stable ABI 
Was previously referred to by name+find, which was wasteful.
 2020-06-21 11:41:10 -04:00
Virgil Dupras f6ded7712e VE: add 't' 
This is the first commit I do entirely in VE. It's a habit I'm planning
on taking as it helps a lot to find usability issues.
 2020-06-11 18:12:01 -04:00
Virgil Dupras 2d17b4e8ec Make string length-prefixed instead of null-terminated 
I'm not sure why I chose null-terminated initially. Probably because
the z80asm version had null-terminated strings.

Length-prefixes strings are the traditional form of strings in Forth
and it's a bit easier to work with them with traditional forth words
when they're under this form.
 2020-05-25 20:34:52 -04:00
Virgil Dupras f75b1c8864 Add word ?DUP 2020-05-22 14:19:02 -04:00
Virgil Dupras bd38d80f9c Move Cross-compiled core from B390 to B350 
and renamed it "Core words". Also, reworded the presentation.
 2020-05-15 22:44:49 -04:00
Virgil Dupras bd1e76ec5b Gather all RC2014 drivers into a single "RC2014 Recipe section" 2020-05-13 14:56:38 -04:00
Virgil Dupras 8d78ca9dac tests: add test_sdc 
The SD card driver is a bit too slow to be bearable. I'll write
_crc16 in z80 and see how it goes.
 2020-04-24 18:23:29 -04:00
Virgil Dupras 8fbbf5209a Copy sdc driver to blkfs 2020-04-23 13:55:00 -04:00