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80985460d4
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76 Commits

Author SHA1 Message Date
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
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