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collapseos
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217 Commits

Author SHA1 Message Date
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 54929c2aa0 xcomp: simplify further 2020-04-09 12:10:43 -04:00
Virgil Dupras e6d3638f4f Add CURRENT* and simplify xcomp 2020-04-09 12:01:08 -04:00
Virgil Dupras f1171c656c xcomp: make (xfind) use _find instead of (find) 2020-04-09 11:24:43 -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 6c48c1b53c parse: be a bit more graceful on parsing meta-failure 2020-04-09 08:27:14 -04:00
Virgil Dupras 6f082b0b13 Change DELW signature 2020-04-09 08:26:27 -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 b5638d142a Add word "DELW" 2020-04-08 20:40:23 -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 521ff84ca4 Reserve some RAM for future features 2020-04-07 17:32:04 -04:00
Virgil Dupras a09e552ccc link: fix literal ASKIP 2020-04-07 11:26:47 -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 9a8c25ceb4 core: fix PSP leak in MOVE 2020-04-06 19:59:20 -04:00
Virgil Dupras 7cd9d29cd8 core: fix MOVE so it copies the right number of bytes 
It copied one too much.
 2020-04-06 16:54:56 -04:00
Virgil Dupras 058b85686f core: add word "MOVE" 2020-04-05 21:02:38 -04:00
Virgil Dupras 6f9d0a98c4 fmt: fix stack leak in DUMP 2020-04-05 20:19:58 -04:00
Virgil Dupras fca0e79da3 cmp: fix & and | logic 
It simply didn't work before, except for =.
 2020-04-05 17:36:07 -04:00
Virgil Dupras 74a32db5cc Move forth/*.txt to root folder 2020-04-05 16:12:28 -04:00
Virgil Dupras 974018831e Add chained comparison support 2020-04-05 16:11:17 -04:00
Virgil Dupras 7b34268a9a Add "DUMP" word 2020-04-05 13:53:03 -04:00
Virgil Dupras 7df7416e9e fmt: add word ".x" and fix .X to 4 chars output 
Simpler code, more predictable output.
 2020-04-05 12:15:43 -04:00
Virgil Dupras 58e88119ec rc2014: Forth Collapse OS, fully operational! 2020-04-05 09:09:00 -04:00
Virgil Dupras edb2771488 rc2014: bingo! 
Interpreter is functional in the emulator!
 2020-04-04 17:43:00 -04:00
Virgil Dupras 7b42bbde27 rc2014: aaalmost there... 
Red 5 standing by.
 2020-04-04 17:07:35 -04:00
Virgil Dupras 32b420b19c readln: fix typo 2020-04-04 14:26:41 -04:00
Virgil Dupras 435b4f452c Move ASCII constants from str unit to print 2020-04-04 10:28:00 -04:00
Virgil Dupras 2af959a13d Don't use IMMEDIATE in icore 
Since the fix of its RAM addr, we use the wrong CURRENT in every
usage of IMMEDIATE in icore. We therefore have to manually set the
flag for all 3 immediate words in that unit.
 2020-04-04 08:40:55 -04:00
Virgil Dupras c972c70ab1 Use proper RAM addr for CURRENT in IMMEDIATE 2020-04-04 08:11:30 -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 c56386af02 wip 2020-04-02 23:21:53 -04:00
Virgil Dupras b162ef84f5 forth: fix broken RAM+ 2020-04-02 13:42:49 -04:00
Virgil Dupras e284081c79 forth: fix readln overflow handling 
It was badly handled.
 2020-04-02 13:40:22 -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 e984efe6c3 forth: Forth-ify SYSVNXT 2020-03-30 14:19:47 -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 400ef99b54 forth: fix dumb bug in (?br) 
inc (hl) is 8 bit, inc (hl) is 8 bit, inc (hl) is 8 bit. Now I hope
I'll remember...
 2020-03-29 22:17:25 -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