Virgil Dupras
c681cb639d
Add words >< and =><=
2020-05-04 22:30:29 -04:00
Virgil Dupras
c494917452
blk: Add LOAD+ and LOADR+
...
And use them in all places they make sense.
2020-05-04 21:43:48 -04:00
Virgil Dupras
24e9fa0c30
Add word NL
2020-05-04 08:10:18 -04:00
Virgil Dupras
a3c3a2f44a
Remove unused DELW
2020-05-03 20:36:35 -04:00
Virgil Dupras
47a9c89f19
Update READMEs
2020-05-03 12:51:21 -04:00
Virgil Dupras
f023f9bcb4
Pack core words blks a bit tighter
...
With all this recent movements, we had a bit of a fragmentation
issue.
2020-05-02 21:47:32 -04:00
Virgil Dupras
3d908cef3a
Move all parsing words to Inner core
...
This allows us to get rid of the (parse*) indirection.
2020-05-02 21:21:47 -04:00
Virgil Dupras
8009270e79
Optimize parsing words
2020-05-02 20:32:20 -04:00
Virgil Dupras
931c812394
Remove cmp
...
Not worth the complexity and space.
2020-05-02 19:57:56 -04:00
Virgil Dupras
0b3a328e65
Add a layer of indirection for KEY
2020-05-02 11:17:28 -04:00
Virgil Dupras
446a58006d
Remove one of the 2 indirection layers for EMIT
...
2 was overkill
2020-05-02 10:26:34 -04:00
Virgil Dupras
3a27479f2b
fix stupid typo
...
I don't believe this, one hour of my life I'll never get back.
2020-05-02 08:06:37 -04:00
Virgil Dupras
2a578b3352
editor: implement F
2020-05-01 21:52:38 -04:00
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...
2020-05-01 20:05:15 -04:00
Virgil Dupras
5bf3baff05
editor: add edit buffer
...
Also, add word "C!+" and fix PSP leak in FILL.
2020-05-01 13:17:40 -04:00
Virgil Dupras
f38de1c151
Introduce the notion of Extra words
2020-04-29 21:52:18 -04:00
Virgil Dupras
0cf26547ff
Add words FLUSH and COPY
2020-04-29 20:21:18 -04:00
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.
2020-04-29 19:38:43 -04:00
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(.
2020-04-29 11:42:09 -04:00
Virgil Dupras
61b2e02351
xcomp: remove XOFF and use ORG and BIN( instead
2020-04-28 09:37:00 -04:00
Virgil Dupras
4501313410
Add [IF] .. [THEN]
...
Will be useful as kinds of "#ifdef"s during xcomp.
2020-04-28 08:28:59 -04:00
Virgil Dupras
2b2ccad96c
Add word FILL
2020-04-27 21:22:06 -04:00
Virgil Dupras
f605e2d85c
Give CASE's default branch access to its input value
...
ref #97
2020-04-27 20:44:21 -04:00
Virgil Dupras
295b4b6e0a
z80a: add BIN( parameter
...
Will be useful for assembling binaries for the TRS-80 which can't start
at addr 0.
2020-04-27 15:11:38 -04:00
Virgil Dupras
dee7eea497
Move link.fs to blkfs
2020-04-26 14:37:54 -04:00
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.
2020-04-26 10:24:09 -04:00
Virgil Dupras
4b7247a971
emul: use LATEST instead of binary size as start addr in stage
...
More reliable.
2020-04-26 08:37:12 -04:00
Virgil Dupras
898684a795
emul: merge pre.fs and emul.fs into stage1.fs
2020-04-25 22:45:53 -04:00
Virgil Dupras
bc3aabc84e
Update z80c.bin's LATEST during xcomp instead of using slatest
2020-04-25 22:02:44 -04:00
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.
2020-04-25 09:10:25 -04:00
Virgil Dupras
b5c370a936
emul: embed blkfs in forth binary
...
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
...
Less noisy this way
2020-04-24 17:53:58 -04:00
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.
2020-04-24 14:10:40 -04:00
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.
2020-04-24 12:10:07 -04:00
Virgil Dupras
44403c3d4c
Move icore to blkfs
...
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)
...
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
...
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
...
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
...
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
...
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!
...
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
...
Goes through initialization in RC2014 emulator.
2020-04-18 11:11:11 -04:00
Virgil Dupras
b062a9092a
parse: use "0<" instead of "0 <"
...
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
...
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
...
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)
...
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
...
Also, fix some PSP leaks related to LOAD.
2020-04-16 20:59:20 -04:00
Virgil Dupras
eefa8e6de5
Add word "BLK!"
...
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
...
Saves quite a few bytes in the final binary.
2020-04-15 21:29:39 -04:00
Virgil Dupras
e1e634c815
boot: compaction
...
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
...
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
...
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
...
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=
...
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)"
...
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
...
It's not used
2020-04-13 19:25:28 -04:00
Virgil Dupras
d08a9711c5
boot: make HERE point to RAMEND instead of CURRENT
...
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
Virgil Dupras
d996dd8c9e
Add one layer of indirection in subsystem memory management
...
This allows optional subsystems to not needlessly reserve too much
system memory and it also reduces offsets bookkeeping.
2020-04-12 20:42:00 -04:00
Virgil Dupras
c515720e23
Revert "Remove link.fs"
...
Let's revisit the relinking approach, with LITA this time.
This reverts commit 6652125d47
.
2020-04-11 13:31:17 -04:00
Virgil Dupras
af3db1c3cf
Add word "LITA"
2020-04-11 13:13:20 -04:00
Virgil Dupras
3822182226
xcomp: shrink scope
...
It seems that xcomp can't manage to reliably compile core+ units.
Let's limit the role of xcomp to z80c+icore.
I'm getting a little desperate here. I'll revisit the link.fs approach
with a new idea I had...
2020-04-11 11:38:45 -04:00
Virgil Dupras
6368cc3bac
Remove (sysv)
...
Replace its usages with direct RAM+ offsets. The (sysv) mechanism was
incompatible with cross-compilation of a full interpreter.
2020-04-10 14:57:00 -04:00
Virgil Dupras
a6efb65010
emul: extract capture mark from icore into xstop.fs
2020-04-10 14:16:45 -04:00
Virgil Dupras
f62376bd0a
boot: remove _bend
...
It's not needed anymore now that the boot binary is built in one pass.
2020-04-10 09:59:45 -04:00
Virgil Dupras
7aa1be070b
emul: build boot binary in one pass
...
... instead of building boot.fs, and then z80c.fs/icore.fs in separate
passes. This strengten xcomp by making it support 2 completely separate
dicts (that is, the X dict is *not* connected to the system dict. The chain
now stops at EXIT def in boot.fs).
2020-04-10 09:55:58 -04:00
Virgil Dupras
c8c337fd58
xcomp: widen scope
...
We can now cross-compile core.fs.
2020-04-10 07:53:41 -04:00
Virgil Dupras
e6d3638f4f
Add CURRENT* and simplify xcomp
2020-04-09 12:01:08 -04:00
Virgil Dupras
1b6286dcfe
Make (find) 2-layered, the lower layer having CURRENT as a param
2020-04-09 11:20:54 -04:00
Virgil Dupras
66dc621919
xcomp: don't automatically shadow core words
2020-04-09 09:43:48 -04:00
Virgil Dupras
0c3067ed9a
icore: simplify definition of ":" and ";"
2020-04-09 09:38:59 -04:00
Virgil Dupras
784b109652
So, why was ":" an immediate again?
2020-04-09 09:27:51 -04:00
Virgil Dupras
afed423530
Remove memory maps
...
It was a dead end. my new tentative solution is xcomp.
2020-04-09 09:21:55 -04:00
Virgil Dupras
b69ca4488e
Add emul_memdump() and stop automatically on ROM write
2020-04-09 08:26:41 -04:00
Virgil Dupras
68f359d6c2
Add xcomp unit for cross compilation
...
Memory mapping is a dead end too, solution has to be at a higher
level. xcomp is my new approach.
2020-04-09 08:23:53 -04:00
Virgil Dupras
2a2e3a64a4
Move IMMED? from z80c to icore
2020-04-08 20:09:32 -04:00
Virgil Dupras
a7a2f3d08b
Move IMMEDIATE from z80c to core
...
This makes IMMEDIATE affected by memory mappings.
2020-04-08 19:43:44 -04:00
Virgil Dupras
64e441d059
Move SCPY from z80c to icore
...
This way, it can be affected by memory mappers.
2020-04-08 16:12:34 -04:00
Virgil Dupras
6652125d47
Remove link.fs
...
This was a dead end.
2020-04-07 21:23:42 -04:00
Virgil Dupras
ba918d0fef
Add memory maps
2020-04-07 20:54:10 -04:00
Virgil Dupras
d4324292fb
Merge remote-tracking branch 'origin/master' into forth
2020-04-07 19:32:30 -04:00
Byron A. Grobe
217df20d77
Moved tools/bin2c to single-level with other tools.
2020-04-07 16:56:55 -05:00
Virgil Dupras
521ff84ca4
Reserve some RAM for future features
2020-04-07 17:32:04 -04:00
Virgil Dupras
71d1350143
emul/hw/rc2014: add memdump command
...
Why didn't I think of adding it before?
2020-04-07 13:37:52 -04:00
Virgil Dupras
400f0ab0b0
boot: fix flagsToBC
...
Why did I ever think that using CM was a good idea? any comparison
with numbers more than 0x8000 apart would be wrong...
2020-04-07 11:26:37 -04:00
Virgil Dupras
1c6e979028
link: new unit to relink dictionaries
...
Not quite functional yet, but works in toy situations. The goal is to
concatenate RC2014's bootstrapped dict to the boot binary.
2020-04-06 20:59:55 -04:00
Virgil Dupras
974018831e
Add chained comparison support
2020-04-05 16:11:17 -04:00
Byron A. Grobe
f65c189e9b
Replace bin2c.sh with a more portable implementation.
...
`xxd' is not available on all systems, and on others does not support
the `-i' flag. Since bin2c.sh relied on a tool that I can't seem to find
a compatible version of, I have included a simple, portable replacement in C.
Usage remains the same:
bin2c ARRAYNAME < inputfile > outputfile.
This change is also reflected in emul/Makefile.
2020-04-05 13:04:05 -05:00
Virgil Dupras
ba384bfa0f
Add stripfc tool
2020-04-04 10:27:21 -04:00
Virgil Dupras
41cefb7460
Extract EMIT-dependent routines from core
2020-04-04 08:08:45 -04:00
Virgil Dupras
d013c572ad
Use proper RAM addr for HERE in SCPY
2020-04-04 07:34:38 -04:00
Virgil Dupras
80891d7ec1
Add in-memory bootstrapping system
...
This should help with the bootstrapping of non-emulated environment.
For example, I have a problem with the RC2014: I can't send it
bootstrap info until the ACIA is up. I need to find a way...
2020-04-03 20:13:11 -04:00
Virgil Dupras
b575d7f863
Move (print) and (uflw) from icore to core
2020-04-03 07:44:44 -04:00
Virgil Dupras
9235fa9223
Add /tools/slatest
...
To update LATEST offset more easily. Will be useful for recipes.
2020-04-02 23:20:47 -04:00
Virgil Dupras
6bf51ae57c
Forth reboot underway!
2020-04-02 20:44:29 -04:00
Virgil Dupras
b162ef84f5
forth: fix broken RAM+
2020-04-02 13:42:49 -04:00
Virgil Dupras
941791d609
forth: remove RAMSTART and RS_ADDR from stable ABI
2020-04-02 11:39:40 -04:00
Virgil Dupras
2481ed4b66
forth: remove dummy.fs
...
All "stop pings" are now explicitly made at appropriate places. This
fixes a problem I've introduced in the last commit where RAM+ was
unexpectedly part of a stable ABI because of "HERE" usage in dummy.fs.
This system will, anyways, soon change because boot.bin and z80c.bin
will be built during the same process (but there's a bit of retooling
to do before I get there).
2020-04-02 11:29:23 -04:00
Virgil Dupras
68a7be3707
forth: Remove RAM offsets from stable ABI
...
Doing this was a bit stupid. These offsets are constants. Moreover,
having them in stable ABI had us construct the boot binary from the
stable ABI of the host, making it very difficult to change RAMSTART
for a new system.
2020-04-02 10:20:51 -04:00
Virgil Dupras
d0c5d3a741
Forth self-bootstraps!!!
...
This commit cuts Forth's dependency on zasm. It now self-assembles
its own boot-binary! Things are a bit messy now, I'll clean up
later.
2020-04-01 22:19:37 -04:00
Virgil Dupras
e846d07238
forth: simplify build process
...
Make LATEST configurable through a value in the binary instead of through
a ZASM constant. This enables the simple concatenation of compiled dicts and
simplifies the build process.
2020-04-01 08:54:01 -04:00
Virgil Dupras
b7244f8985
forth: shrink forth.asm's binary size
2020-03-31 22:11:44 -04:00
Virgil Dupras
1e85d60d89
forth: Forth-ify ","
2020-03-31 16:32:50 -04:00
Virgil Dupras
7d5b1f5cea
forth: Forth-ify parseDecimal
2020-03-31 15:04:28 -04:00
Virgil Dupras
25814c0b8b
forth: add label system to z80 assembler
2020-03-31 09:23:00 -04:00
Virgil Dupras
ce6e31dda1
forth: inline "strcmp"
2020-03-31 08:02:40 -04:00
Virgil Dupras
031bfc6d72
forth: setup SYSVNXT in Forth code
2020-03-30 21:48:56 -04:00
Virgil Dupras
e5ab0dd1c9
forth: a little bit of ASM routine inlining
2020-03-30 21:33:37 -04:00
Virgil Dupras
5c03b33982
forth: remove sysvarWord type
...
Not needed anymore. CONSTANT does the trick.
2020-03-30 21:19:48 -04:00
Virgil Dupras
05045b2aa4
forth: move stable ABI stuff at the top of forth.asm
...
Now we're having a real nice and tidy forth.asm...
2020-03-30 21:02:19 -04:00
Virgil Dupras
f366732424
forth: Forth-ify "DOES>"
2020-03-30 20:01:59 -04:00
Virgil Dupras
36e200adbb
forth: Forth-ify "SCPY"
2020-03-30 17:59:30 -04:00
Virgil Dupras
5b01f797fc
forth: Forth-ify "(find)"
2020-03-30 17:36:15 -04:00
Virgil Dupras
de3da19333
forth: Forth-ify "NOT"
2020-03-30 17:26:51 -04:00
Virgil Dupras
4756fb7763
forth: Forth-ify "(parsed)"
2020-03-30 17:21:13 -04:00
Virgil Dupras
80985460d4
forth: remove JTBL
...
We refer to stable offset as direct numbers instead of offset to JTBL.
Simpler that way.
2020-03-30 17:05:00 -04:00
Virgil Dupras
61195a987d
forth: Forth-ify "HERE", "CURRENT" and "JTBL"
2020-03-30 15:11:23 -04:00
Virgil Dupras
a9cf861cfd
forth: Forth-ify "(parse*)"
2020-03-30 14:49:20 -04:00
Virgil Dupras
f9d45f7f53
forth: Forth-ify "FLAGS"
2020-03-30 14:29:21 -04:00
Virgil Dupras
162ff2c5cb
forth: Forth-ify "!"
2020-03-30 14:09:39 -04:00
Virgil Dupras
8ef9e7d0da
forth: Forth-ify "@"
2020-03-30 14:05:07 -04:00
Virgil Dupras
f9c3a0444c
forth: Forth-ify "DROP"
2020-03-30 13:57:06 -04:00
Virgil Dupras
49994f09ce
forth: add word "2DROP"
2020-03-30 13:54:46 -04:00
Virgil Dupras
8186511727
forth: fix bootstrapping issues with "LITN" and "+"
2020-03-30 13:50:53 -04:00
Virgil Dupras
395eb04fac
forth: Forth-ify "C<"
2020-03-30 08:37:33 -04:00
Virgil Dupras
f6cba4b1cf
forth: Forth-ify "QUIT"
2020-03-30 08:25:22 -04:00
Virgil Dupras
da9f9f9899
forth: melt boot binary
2020-03-30 08:11:16 -04:00
Virgil Dupras
d09ec0d757
forth: Forth-ify "SWAP"
2020-03-30 08:06:11 -04:00
Virgil Dupras
cc4700e389
forth: Forth-ify "DUP"
2020-03-30 08:02:20 -04:00
Virgil Dupras
09cd25df29
forth: Forth-ify "OVER"
2020-03-30 07:58:16 -04:00
Virgil Dupras
9cfddea940
forth: Forth-ify "+"
2020-03-30 07:54:45 -04:00
Virgil Dupras
a2c258afba
forth: Forth-ify "CMP"
...
forth.asm under 1K lines!
2020-03-30 07:52:24 -04:00
Virgil Dupras
7c9d799d93
forth: Forth-ify "SCMP"
2020-03-30 07:48:07 -04:00
Virgil Dupras
d2dcd96ce1
emul: add useful emul_trace() debugging tool
2020-03-29 22:13:54 -04:00
Virgil Dupras
48078d9c9c
forth: Replace "SKIP?" with "(?br)"
...
There is an alternate git history where I continued the Forth-ification of
words, including "SKIP?", but that was a bad idea: because that word was
written by flow control immediates, I stepped into quicksands where stability
became necessary in z80c.fs and I couldn't gracefully get out of it.
I'm stepping back and take this opportunity to replace the shoddy SKIP? algo
with a more straightforward (?br) implementation.
(br) and (?br) will always stay in boot code where it's easier manage a stable
ABI.
2020-03-29 09:10:23 -04:00
Virgil Dupras
9fcfebd84c
forth: Forth-ify "WS?"
2020-03-28 13:18:43 -04:00
Virgil Dupras
a17da42021
forth: remove unused (fbr) and (bbr)
2020-03-28 13:12:07 -04:00
Virgil Dupras
c1693c6256
forth: Forth-ify "TOWORD"
2020-03-28 13:02:04 -04:00
Virgil Dupras
8b7947bc6a
forth: Forth-ify "WORD"
2020-03-28 12:55:22 -04:00
Virgil Dupras
6e3b47f4a4
forth: Replace "(fbr)" and "(bbr)" words by "(br)"
...
I can't get rid of "(fbr)" and "(bbr)" just yet, but soon...
2020-03-28 11:31:16 -04:00
Virgil Dupras
758ec025dc
forth: Forth-ify "LITN"
2020-03-28 10:38:05 -04:00
Virgil Dupras
1227ee7155
forth: Forth-ify "EMIT"
2020-03-28 10:25:02 -04:00
Virgil Dupras
2db6ebc247
forth: Forth-ify "BYE"
2020-03-28 10:14:27 -04:00
Virgil Dupras
e0eaa8ba63
forth: Forth-ify "ABORT"
2020-03-28 10:11:52 -04:00
Virgil Dupras
8d8e1d93da
forth: slightly improve assembler
2020-03-28 09:39:24 -04:00
Virgil Dupras
ab98e9bcd1
forth: Forth-ify "(uflw)"
2020-03-28 09:19:40 -04:00
Virgil Dupras
5471ef02a7
forth: Forth-ify "BOOT"
2020-03-28 09:08:46 -04:00
Virgil Dupras
408d93bd23
forth: Forth-ify "IMMED?"
2020-03-27 21:58:24 -04:00
Virgil Dupras
8f990ff954
forth: Forth-ify "IMMEDIATE"
2020-03-27 21:36:05 -04:00
Virgil Dupras
26871be6f2
forth: Forth-ify "C,"
2020-03-27 19:12:46 -04:00
Virgil Dupras
49101915fb
forth: Forth-ify "(entry)"
2020-03-27 16:52:42 -04:00
Virgil Dupras
799ea72974
forth: Forth-ify ":"!!!
...
Lifting ourselves by the bootstraps!
2020-03-27 16:21:34 -04:00
Virgil Dupras
f40c14715e
forth: take advantage of the new [] mode
2020-03-27 15:35:58 -04:00
Virgil Dupras
839021e0f8
forth: Forth-ify "(print)"
2020-03-27 12:39:59 -04:00
Virgil Dupras
edcd80e3a6
forth: Forth-ify "(parse)"
2020-03-27 11:49:50 -04:00
Virgil Dupras
941224be94
forth: Forth-ify "-"
2020-03-27 11:36:58 -04:00
Virgil Dupras
005dd98fc2
forth: Forth-ify "R>" and ">R"
2020-03-27 11:27:40 -04:00
Virgil Dupras
1e7e696e4a
forth: Forth-ify ";"!!!
...
Ain't that not self-bootstrapping enough to your taste? Whoa, I'm
getting dizzy...
2020-03-27 09:32:03 -04:00
Virgil Dupras
dad0081123
forth: Forth-ify "INTERPRET"!!!
...
Now we're seriously getting into real boostrapping territory...
2020-03-27 08:23:45 -04:00
Virgil Dupras
40eda1d933
forth: Forth-ify "*"
2020-03-26 14:36:14 -04:00
Virgil Dupras
e82f13acf1
forth: Forth-ify "I", "I'", "J"
2020-03-26 14:11:22 -04:00
Virgil Dupras
cf2f6703bb
forth: make forth/forth.asm spit whole binary
...
emul/forth/stage{0,1}.asm now only configure constants and append
binaries.
2020-03-26 12:17:02 -04:00
Virgil Dupras
966f6df0c5
forth: Forth-ify "KEY"
2020-03-26 12:12:11 -04:00
Virgil Dupras
636407969d
forth: Forth-ify "(emit)"
2020-03-26 12:05:48 -04:00
Virgil Dupras
42abbe75aa
forth: remove 0 and 1 constants
...
They do save space (nearly 100b), but they complicate our Forth-ification
process. We'll re-add them later.
2020-03-26 11:05:58 -04:00
Virgil Dupras
6eaabb9bbe
forth: make word name of variable length
...
This allows us to save a whole 500 bytes on the final binary size!
This change comes after I took a look at the hex dump and saw that one letter
constants in z80a.fs took a lot of space.
2020-03-26 10:53:33 -04:00
Virgil Dupras
52e6eaafc7
forth: Forth-ify "/MOD"
2020-03-25 22:51:23 -04:00
Virgil Dupras
61bb22e8c9
forth: straighten out "/MOD"
...
The removal of the "divide" routine highlighted the fact that
nativeWord wasn't properly stabilized.
2020-03-25 21:49:09 -04:00
Virgil Dupras
c2d8fc845d
forth: bring ." and ABORT" down to core.fs level
2020-03-25 20:39:07 -04:00
Virgil Dupras
6d8edeec63
forth: Forth-ify "C!" and "C@"
2020-03-25 17:52:51 -04:00
Virgil Dupras
66412a1c30
forth: Forth-ify "XOR"
2020-03-25 17:24:46 -04:00
Virgil Dupras
1871f7cdb4
forth: Forth-ify "OR"
2020-03-25 17:19:47 -04:00
Virgil Dupras
eb6a07a162
forth: Forth-ify "PC@"
2020-03-25 17:13:10 -04:00
Virgil Dupras
7beac94b5a
forth: Forth-ify "PC!"
2020-03-25 17:07:15 -04:00
Virgil Dupras
3a08fa7e74
forth: add a stable ABI
2020-03-24 23:02:06 -04:00
Virgil Dupras
f0ab57c8cc
forth: Forth-ify "AND"
2020-03-24 22:09:52 -04:00
Virgil Dupras
6c5f39806b
forth: improve bootstrap process
2020-03-24 21:13:02 -04:00
Virgil Dupras
d6516e2122
forth: Forth-ify "2*" stack management words
2020-03-24 14:44:10 -04:00
Virgil Dupras
67c55b0b2f
forth: Forth-ify ROT, a native word!
...
This requires us to significantly adjust our build process, which
now has 3 stages.
2020-03-24 13:46:05 -04:00