Virgil Dupras
61b2e02351
xcomp: remove XOFF and use ORG and BIN( instead
4 lat temu
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 lat temu
Virgil Dupras
4501313410
Add [IF] .. [THEN]
Will be useful as kinds of "#ifdef"s during xcomp.
4 lat temu
Virgil Dupras
f97df4614e
recipes/trs80: wip
4 lat temu
Virgil Dupras
b8ea515612
Add word WIPE
4 lat temu
Virgil Dupras
2b2ccad96c
Add word FILL
4 lat temu
Virgil Dupras
f605e2d85c
Give CASE's default branch access to its input value
ref #97
4 lat temu
Virgil Dupras
3b66aefcd1
block editor: fix broken B and N
fixes #97
4 lat temu
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 lat temu
Virgil Dupras
ee79df225e
typo
4 lat temu
Virgil Dupras
efed0e249e
recipes/rc2014/selfhost: add verification instructions
4 lat temu
Virgil Dupras
6c51ea1ebb
recipes/rc2014/selfhost: complete instructions
I have yet to test the whole process on real hardware. Soon.
4 lat temu
Virgil Dupras
f690cb2e5b
recipes/rc2014/sdcard: use driver from blkfs
This completes the migration of all Collapse OS code into blkfs!
4 lat temu
Virgil Dupras
865f4f9256
Move AT28 driver to blkfs
And adjust rc2014/eeprom recipe
4 lat temu
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 lat temu
Virgil Dupras
dee7eea497
Move link.fs to blkfs
4 lat temu
Virgil Dupras
4d8574c1fe
recipe/rc2014: use core libs from blkfs
4 lat temu
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 lat temu
Virgil Dupras
0e3cf7fa02
Add word ,"
4 lat temu
Virgil Dupras
4b7247a971
emul: use LATEST instead of binary size as start addr in stage
More reliable.
4 lat temu
Virgil Dupras
898684a795
emul: merge pre.fs and emul.fs into stage1.fs
4 lat temu
Virgil Dupras
bc3aabc84e
Update z80c.bin's LATEST during xcomp instead of using slatest
4 lat temu
Virgil Dupras
6f896caf7a
Copy core words to blkfs
4 lat temu
Virgil Dupras
6767012ebd
recipe/rc2014/selfhost: new recipe
4 lat temu
Virgil Dupras
13771d8c92
xcomp: add XPACK
4 lat temu
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 lat temu
Virgil Dupras
4160c8ebbf
recipes/rc2014: busting the 8K limit again!
4 lat temu
Virgil Dupras
5219887ad7
sdc: implement _crc16 in z80
4 lat temu
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 lat temu
Virgil Dupras
b5c370a936
emul: embed blkfs in forth binary
This will allow us to read from blkfs in tests.
4 lat temu
Virgil Dupras
1bd191e86a
Move /emul/forth/* to /emul
Less noisy this way
4 lat temu
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 lat temu
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 lat temu
Virgil Dupras
a699c93509
Print word that wasn't found on "word not found" error
4 lat temu
Virgil Dupras
f19a5e1f71
Remove recipes/rc2014/zasm
That becomes irrelevant in Forth
4 lat temu
Virgil Dupras
44403c3d4c
Move icore to blkfs
The way is clear for complete stage1 bootstrapping on the RC2014
target!
4 lat temu
Virgil Dupras
8fbbf5209a
Copy sdc driver to blkfs
4 lat temu
Virgil Dupras
a19376df6c
Copy ACIA driver to blkfs
We can get rid of acia.z80, but not of acia.fs yet, we still need it.
4 lat temu
Virgil Dupras
dd6ce1b8fe
Avoid using (xentry) outside xcomp config
4 lat temu
Virgil Dupras
fcd77f80ab
Use blk's boot.z80
4 lat temu
Virgil Dupras
503dbe9a2c
Copy boot.z80 to blkfs
4 lat temu
Virgil Dupras
338769a0a8
z80a: add PUSH0, PUSH1, PUSHZ, macros
4 lat temu
Virgil Dupras
7464c67c80
boot: fix (roll)
It didn't work for values over 0xff. Duh!
4 lat temu
Virgil Dupras
7a0e63746f
parse: don't validate 0x and 0b lengths
It doesn't serve much purpose and takes up many precious bytes. And,
after all, parsed didn't do it either...
4 lat temu
Virgil Dupras
372524fd19
Move xcomp to blocks
4 lat temu
Virgil Dupras
446ce574cd
Add words "'S" and "S0"
4 lat temu
Virgil Dupras
ae14c55feb
boot: a little dereferencing to make things a bit faster
4 lat temu
Virgil Dupras
e569e40665
Forth-ify 2DUP 2OVER 2SWAP
2DROP was left in boot.z80 because it's used in icore.
4 lat temu
Virgil Dupras
0438cb92fe
Add word "ROLL"
4 lat temu
Virgil Dupras
2de1eabaa6
z80a: add LDIR, LDDR, and friends
4 lat temu