Virgil Dupras
389b23fe1a
Change C<? mechanic
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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.
2020-04-25 09:10:25 -04:00
Virgil Dupras
b5c370a936
emul: embed blkfs in forth binary
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This will allow us to read from blkfs in tests.
2020-04-24 18:01:55 -04:00
Virgil Dupras
1bd191e86a
Move /emul/forth/* to /emul
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Less noisy this way
2020-04-24 17:53:58 -04:00
Virgil Dupras
816563e2e3
Stop LOADing on ABORT
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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.
2020-04-24 14:10:40 -04:00
Virgil Dupras
af39b37dd1
Replace the "> " prompt with the more traditional "ok" one
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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.
2020-04-24 12:10:07 -04:00
Virgil Dupras
44403c3d4c
Move icore to blkfs
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The way is clear for complete stage1 bootstrapping on the RC2014
target!
2020-04-23 15:14:14 -04:00
Virgil Dupras
dd6ce1b8fe
Avoid using (xentry) outside xcomp config
2020-04-23 12:09:31 -04:00
Virgil Dupras
fcd77f80ab
Use blk's boot.z80
2020-04-22 21:49:44 -04:00
Virgil Dupras
338769a0a8
z80a: add PUSH0, PUSH1, PUSHZ, macros
2020-04-22 19:03:32 -04:00
Virgil Dupras
7464c67c80
boot: fix (roll)
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It didn't work for values over 0xff. Duh!
2020-04-22 10:47:23 -04:00
Virgil Dupras
7a0e63746f
parse: don't validate 0x and 0b lengths
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It doesn't serve much purpose and takes up many precious bytes. And,
after all, parsed didn't do it either...
2020-04-21 20:40:23 -04:00
Virgil Dupras
372524fd19
Move xcomp to blocks
2020-04-21 20:30:14 -04:00
Virgil Dupras
446ce574cd
Add words "'S" and "S0"
2020-04-21 07:45:23 -04:00
Virgil Dupras
ae14c55feb
boot: a little dereferencing to make things a bit faster
2020-04-20 23:30:08 -04:00
Virgil Dupras
e569e40665
Forth-ify 2DUP 2OVER 2SWAP
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2DROP was left in boot.z80 because it's used in icore.
2020-04-20 23:18:57 -04:00
Virgil Dupras
0438cb92fe
Add word "ROLL"
2020-04-20 23:06:39 -04:00
Virgil Dupras
4967c2add2
Merge z80c.fs and boot.fs into boot.z80
2020-04-20 21:27:34 -04:00
Virgil Dupras
41ed70f8cb
z80c: Add word "PICK"
2020-04-20 21:22:07 -04:00
Virgil Dupras
353d12c27d
boot: inline chkRS, make next a bit faster
2020-04-20 20:28:25 -04:00
Virgil Dupras
d466c6d95d
emul: make stage2 load z80a from blkfs
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This allows us to remove forth/z80a.fs. Another big step towards
self-hosting!
2020-04-19 21:31:41 -04:00
Virgil Dupras
6ae65940d2
Update bootstrap bin
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It seems that I had forgotten in an earlier commit.
2020-04-19 20:57:09 -04:00
Virgil Dupras
a70366aa43
drv/sdc: Implement SDC!
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This has been tested in the RC2014 emulator. I could edit blocks with
the Block Editor and they would correctly be written to SDC.
2020-04-18 19:39:28 -04:00
Virgil Dupras
c64a8a2e2b
drv/sdc: new unit to drive SD card through SPI relay
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Goes through initialization in RC2014 emulator.
2020-04-18 11:11:11 -04:00
Virgil Dupras
b062a9092a
parse: use "0<" instead of "0 <"
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As I wrote in my "Clarify signed-ness" commit, "0 <" is broken.
Also, made this unit a bit more compact. The RC2014 stage1 can
really use some breathing room...
2020-04-18 09:18:09 -04:00
Virgil Dupras
82044454d5
Merge branch 'master' into forth
2020-04-17 20:39:08 -04:00
Virgil Dupras
9c41744e46
emul/hw/rc2014: implement blk write in sdc
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All of that should help me implement sdc support much faster in
Forth.
2020-04-17 20:19:55 -04:00
Virgil Dupras
7544b3834b
emul/hw/rc2014: implement blkread in sdc
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I now get to "fls" in recipes/rc2014/sdcard!
2020-04-17 19:10:22 -04:00
Virgil Dupras
ae470397d7
emul/hw/rc2014: add sdc emulator (wip)
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so far, it goes through initialization with the rc2014/sdcard recipe.
2020-04-17 15:11:32 -04:00
Virgil Dupras
9edab10a3a
blk: add dirty flag and auto write blocks on fetch
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Also, fix some PSP leaks related to LOAD.
2020-04-16 20:59:20 -04:00
Virgil Dupras
eefa8e6de5
Add word "BLK!"
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as well as emulator support for it. We can now write an edited
block back to "blkfs".
2020-04-16 17:22:18 -04:00
Virgil Dupras
5d4155aa32
Add words 1+ 2+ 1- 2- and consts 0 1 -1
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Saves quite a few bytes in the final binary.
2020-04-15 21:29:39 -04:00
Virgil Dupras
e1e634c815
boot: compaction
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It's more hassle than it seems to move the stable ABI...
2020-04-15 20:57:46 -04:00
Virgil Dupras
a56ace4d3e
boot: optimize (br)
2020-04-15 20:03:56 -04:00
Virgil Dupras
0750e8d0c0
Use IY for IP instead of RAM+06
2020-04-15 17:01:15 -04:00
Virgil Dupras
2a84a426b4
Strip usages of IY register
2020-04-15 16:53:04 -04:00
Virgil Dupras
2b0186fd58
boot: make routine field 1b
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I forgot to do it earlier. NOP having an opcode of 0, it didn't have
any effect.
2020-04-15 16:24:03 -04:00
Virgil Dupras
d2ec5e271c
Optimize boot binary's word execution code
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Should be significantly faster now. Less push/popping and usage of
DE instead of IY.
2020-04-15 16:09:10 -04:00
Virgil Dupras
d8de8a058a
Make word routine refs 1b instead of 2
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Saves quite a bit of binary space. More than 300 bytes in forth1.bin
2020-04-15 15:16:11 -04:00
Virgil Dupras
e40c059c26
Make word routines all in the <0x100 range
2020-04-15 14:00:59 -04:00
Virgil Dupras
728e4ce123
Bring EXECUTE word outside of stable ABI
2020-04-15 13:36:28 -04:00
Virgil Dupras
2439f1ed86
Change SCMP for S=
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Remove flagsToBC boot routine.
2020-04-15 12:19:58 -04:00
Virgil Dupras
16d5cd91de
emul: don't segfault on quit when there is no blkfs
2020-04-15 10:56:49 -04:00
Virgil Dupras
c40f336959
icore: extract "_pdacc" from "(parsed)"
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Makes boot binary a bit bigger, but that "_pdacc" word will be
reused in high level apps.
2020-04-15 10:41:27 -04:00
Virgil Dupras
79acf92b28
emul: fix Makefile
2020-04-15 09:01:09 -04:00
Virgil Dupras
aec19e5c87
Add word "LOAD"
2020-04-14 18:15:07 -04:00
Virgil Dupras
a67101fb8b
Add word "EMPTY"
2020-04-14 16:07:07 -04:00
Virgil Dupras
b8dd86bd18
Move notes.txt in blk
2020-04-14 14:54:42 -04:00
Virgil Dupras
f59cac0588
blk: first steps
2020-04-14 09:07:20 -04:00
Virgil Dupras
d919a10265
Remove runbin
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It's not used
2020-04-13 19:25:28 -04:00
Virgil Dupras
d08a9711c5
boot: make HERE point to RAMEND instead of CURRENT
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The former was only used in the peculiar context of "/emul". The
regular case is actually HERE pointing to RAMEND on boot.
2020-04-13 11:43:15 -04:00