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191 Commits

Author SHA1 Message Date
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
Virgil Dupras
41cd8086d4 forth: don't use "(entry)" in dummy.fs 
Because icore.fs defines it in a "not-for-runtime" manner, dummy.fs
executing it had ill effects. We use a workaround instead.
 2020-03-27 21:15:16 -04:00
Virgil Dupras
409a9f87e5 forth: replace "ROUTINE" with "JTBL" 2020-03-27 19:53:28 -04:00
Virgil Dupras
26871be6f2 forth: Forth-ify "C," 2020-03-27 19:12:46 -04:00
Virgil Dupras
29dcddb8cd forth: improve assembler a bit 2020-03-27 18:38:42 -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
7967c654e0 forth: Un-IMMEDIATE "ROUTINE" 
It's not needed anymore
 2020-03-27 15:51:28 -04:00
Virgil Dupras
f40c14715e forth: take advantage of the new [] mode 2020-03-27 15:35:58 -04:00
Virgil Dupras
684cb028ff forth: add words "[" and "]" 2020-03-27 15:25:20 -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
cb3e6469b8 forth: make "(parsed)" support negative literals 
This limitation was becoming annoying...
 2020-03-26 14:47:17 -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
d1f572d2ed forth: Word-ified "(print)" 2020-03-26 11:51:29 -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
3e934a2a3b forth: fix name conflict with "H" in core and z80a 2020-03-25 20:13:33 -04:00
Virgil Dupras
77ecbc4918 forth: Forth-ify "'" and "[']" 2020-03-25 20:06:06 -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
04a6784de4 forth: Forth-ify "(sysv)" 2020-03-25 08:39:44 -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
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
Virgil Dupras
ca7c21d49f forth: make "(entry)" call WORD itself 
Otherwise, when a defining word would be called outside a definition
itself, it would get the name of the last parsed word, that is,
itself!

For example, dummy.fs, instead of creating a "_______" entry, created
a "(entry)" entry...
 2020-03-22 22:27:54 -04:00
Virgil Dupras
5387e08437 forth: make bin staging process a bit less hackish 
The goal being to add a new native code dict staging phase.
 2020-03-22 21:46:43 -04:00
Virgil Dupras
ffe61a12f8 forth: make prev word field relative 
This should help with upcoming challenges in bootstrapping z80 code
compiled through Forth.
 2020-03-22 17:41:59 -04:00
Virgil Dupras
00de336976 forth: add "CODE"!!! 2020-03-22 12:08:50 -04:00
Virgil Dupras
46833f3819 forth: Forth-ify "LIT", "LITS", "LIT<" 2020-03-22 11:56:40 -04:00
Virgil Dupras
54fd5fbb2b forth: Forth-ify "CREATE" 2020-03-22 11:49:09 -04:00
Virgil Dupras
1e886f5f34 forth: add word "ROUTINE" 2020-03-22 11:25:39 -04:00
Virgil Dupras
33e47d4938 forth: begin z80 assembler 2020-03-21 21:23:13 -04:00
Virgil Dupras
d5b6659507 forth: forgot to commit high.fs... 2020-03-21 21:22:07 -04:00
Virgil Dupras
ac914c3847 forth: consolidation 2020-03-21 18:40:30 -04:00
Virgil Dupras
f4b969986d forth: Forth-ify "."" 2020-03-21 17:21:01 -04:00
Virgil Dupras
def4ebd7ea forth: add word "LITS" 2020-03-21 16:31:53 -04:00
Virgil Dupras
145fdd8e05 forth: rename "LITS" to "LIT<" 2020-03-21 16:27:21 -04:00
Virgil Dupras
4627e1c977 forth: Forth-ify "ABORT"" 2020-03-21 16:17:51 -04:00
Virgil Dupras
6487c713ef forth: fix prompt in QUIT conditions 2020-03-21 15:22:37 -04:00
Virgil Dupras
9791c0957d forth: make readline skip prompt when appropriate 2020-03-21 14:59:12 -04:00
Virgil Dupras
b47a3ee234 forth: add words "AND", "OR", "XOR" 2020-03-21 14:47:38 -04:00
Virgil Dupras
c1ece95089 forth: implement readline in Forth 
The commit ended up being much bigger than anticipated. This was a long thread
of underlying complexities. This lead to the creation of interesting concepts
such as (sysv).
 2020-03-21 12:57:49 -04:00
Virgil Dupras
2feb246334 forth: give WORD its own buffer 
You'll soon see where I'm going with this...
 2020-03-19 21:56:53 -04:00
Virgil Dupras
61abafbc1a forth: a little housekeeping 2020-03-19 21:45:27 -04:00
Virgil Dupras
abb84b01db forth: Word-ify "readword" 2020-03-19 21:40:35 -04:00
Virgil Dupras
5458a1f7ff forth: a little housekeeping 2020-03-19 17:39:44 -04:00
Virgil Dupras
cf95bbcace forth: inline kernel/stdio 2020-03-19 17:26:45 -04:00
Virgil Dupras
6134694513 forth: put all ASM code in the same file 2020-03-19 17:01:15 -04:00
Virgil Dupras
f420db135d forth: a little house cleaning 2020-03-19 16:36:54 -04:00
Virgil Dupras
af5a97243a forth: implement "0b" number parsing 2020-03-19 16:03:35 -04:00
Virgil Dupras
f0cbda1f2e tests: add Forth tests 
Modest first step
 2020-03-19 15:43:48 -04:00
Virgil Dupras
b335e538b4 Move "forth" folder to project's root folder 
It's not really an App.
 2020-03-18 22:25:44 -04:00