Virgil Dupras
ecca70c7f3
Add layer of indirection to EMIT
This would allow things like temporary giving control to the *CL
line on the TRS-80. For example... A very far fetched example. Not
at all the only *raison d'etre* of the layer...
4 years ago
Virgil Dupras
5bf3baff05
editor: add edit buffer
Also, add word "C!+" and fix PSP leak in FILL.
4 years ago
Virgil Dupras
792c781614
editor: add cursor pos tracking and display
4 years ago
Virgil Dupras
07f807edee
recipes/trs80: making progress on floppy drivers
4 years ago
Virgil Dupras
65f359bda4
recipes/trs80: can write compiled version to floppy
4 years ago
Virgil Dupras
f38de1c151
Introduce the notion of Extra words
4 years ago
Virgil Dupras
0044011f06
Move AT28 and TRS80 drivers to higher blocknos
I'm reserving the 100-200 range for non-bootstrapping needs.
4 years ago
Virgil Dupras
0cf26547ff
Add words FLUSH and COPY
4 years ago
Virgil Dupras
581f04a4bc
Keep stage1 bootstrap bin instead of stage 0
XPACKed source needing to be kept in bootstrap bin didn't make
much sense. With the removal of stripfc, it makes more sense to keep
the compiled form of stage 1 in repository as a bootstrap binary.
Also, rename it to forth.bin.
4 years ago
Virgil Dupras
b046aba7f9
recipes/trs80: running!
no floppy yet.
4 years ago
Virgil Dupras
1b2c4b519e
icore: add BIN+
This allows us to write LATEST at proper offset in emul/stage1.fs in
cases where we set a nonzero BIN(.
4 years ago
Virgil Dupras
fc67b88720
Make BIN( offsetted binaries closer to working at all
I have a working offset-by-0x100 stage0 now.
4 years ago
Virgil Dupras
0b8c8c9ca0
recipes/trs80: still wip...
4 years ago
Virgil Dupras
61b2e02351
xcomp: remove XOFF and use ORG and BIN( instead
4 years ago
Virgil Dupras
838548843e
boot: apply BIN( to stray stable ABI references
With cross compiling and IMMEDIATE words, things get icky with stable
ABI references. For the same reason that EXIT, (br) and (br?) need to
stay at stable offsets, these word references will not have BIN(
properly applied at Inner core xcomp.
The solution for now is to adjust during EXECUTE, which is ugly and
inefficient, but I don't see a better solution right now.
4 years ago
Virgil Dupras
4501313410
Add [IF] .. [THEN]
Will be useful as kinds of "#ifdef"s during xcomp.
4 years ago
Virgil Dupras
f97df4614e
recipes/trs80: wip
4 years ago
Virgil Dupras
b8ea515612
Add word WIPE
4 years ago
Virgil Dupras
2b2ccad96c
Add word FILL
4 years ago
Virgil Dupras
f605e2d85c
Give CASE's default branch access to its input value
ref #97
4 years ago
Virgil Dupras
3b66aefcd1
block editor: fix broken B and N
fixes #97
4 years ago
Virgil Dupras
295b4b6e0a
z80a: add BIN( parameter
Will be useful for assembling binaries for the TRS-80 which can't start
at addr 0.
4 years ago
Virgil Dupras
ee79df225e
typo
4 years ago
Virgil Dupras
efed0e249e
recipes/rc2014/selfhost: add verification instructions
4 years ago
Virgil Dupras
6c51ea1ebb
recipes/rc2014/selfhost: complete instructions
I have yet to test the whole process on real hardware. Soon.
4 years ago
Virgil Dupras
f690cb2e5b
recipes/rc2014/sdcard: use driver from blkfs
This completes the migration of all Collapse OS code into blkfs!
4 years ago
Virgil Dupras
865f4f9256
Move AT28 driver to blkfs
And adjust rc2014/eeprom recipe
4 years ago
Virgil Dupras
7c692c1111
recipes/rc2014: include readln directly in stage 1
XPACK is more efficient than stripfc was, we can pack more stuff in 8K.
We now have enough space to fit readln.
4 years ago
Virgil Dupras
dee7eea497
Move link.fs to blkfs
4 years ago
Virgil Dupras
4d8574c1fe
recipe/rc2014: use core libs from blkfs
4 years ago
Virgil Dupras
a2f164ecc3
emul: bootstrap to stage2 from within Collapse OS!
Big bootstrapping change which greatly reduces the role of the modern
operating system in the bootstrapping process.
4 years ago
Virgil Dupras
0e3cf7fa02
Add word ,"
4 years ago
Virgil Dupras
4b7247a971
emul: use LATEST instead of binary size as start addr in stage
More reliable.
4 years ago
Virgil Dupras
898684a795
emul: merge pre.fs and emul.fs into stage1.fs
4 years ago
Virgil Dupras
bc3aabc84e
Update z80c.bin's LATEST during xcomp instead of using slatest
4 years ago
Virgil Dupras
6f896caf7a
Copy core words to blkfs
4 years ago
Virgil Dupras
6767012ebd
recipe/rc2014/selfhost: new recipe
4 years ago
Virgil Dupras
13771d8c92
xcomp: add XPACK
4 years ago
Virgil Dupras
389b23fe1a
Change C<? mechanic
It's now a simple flag updated by the C< implementation. No more
routine pointer.
The goal is to avoid tons of "ok" during a LOAD operation.
4 years ago
Virgil Dupras
4160c8ebbf
recipes/rc2014: busting the 8K limit again!
4 years ago
Virgil Dupras
5219887ad7
sdc: implement _crc16 in z80
4 years ago
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.
4 years ago
Virgil Dupras
b5c370a936
emul: embed blkfs in forth binary
This will allow us to read from blkfs in tests.
4 years ago
Virgil Dupras
1bd191e86a
Move /emul/forth/* to /emul
Less noisy this way
4 years ago
Virgil Dupras
816563e2e3
Stop LOADing on ABORT
This is done by adding a "C<* override" layer that is reset to 0 on
ABORT.
The problem was that when ABORT happened during a LOAD, we had a
resetted RSP and started from a clean INTERPRET, but LOAD didn't
have the opportunity to restore C<*, which caused it to continue
interpreting from the faulty BLK.
With a C<* override, we don't need to *restore* C<*, we just need to
clear the override.
4 years ago
Virgil Dupras
af39b37dd1
Replace the "> " prompt with the more traditional "ok" one
This is more than cosmetic, it's also highly usable. The presence
or absence of the "ok" message allows us to know whether the command
aborted. Previously, the "> " prompt appeared when the system expected
a prompt in the INTERPRET context, whether the previous command aborted
or not.
Also, this allows us to get rid of that ugly FLAGS global variable.
4 years ago
Virgil Dupras
a699c93509
Print word that wasn't found on "word not found" error
4 years ago
Virgil Dupras
f19a5e1f71
Remove recipes/rc2014/zasm
That becomes irrelevant in Forth
4 years ago
Virgil Dupras
44403c3d4c
Move icore to blkfs
The way is clear for complete stage1 bootstrapping on the RC2014
target!
4 years ago
Virgil Dupras
8fbbf5209a
Copy sdc driver to blkfs
4 years ago