izaya/collapseos
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106 Commits

Author SHA1 Message Date
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
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
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
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
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
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