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
Virgil Dupras
ae6334906c
forth: inline kernel's core and str units
2020-03-18 22:18:07 -04:00
Virgil Dupras
548facac0b
forth: Implement "(parseh)"
2020-03-18 21:52:55 -04:00
Virgil Dupras
d874f20278
forth: Add "DO" and "LOOP"
...
Also, un-IMMEDIATE "LITN" it didn't make any sense.
2020-03-18 20:04:44 -04:00
Virgil Dupras
587d1d0d69
forth: add word "UNTIL"
2020-03-18 16:39:22 -04:00
Virgil Dupras
1df9c4fc1b
forth: split forth source into multiple files
2020-03-17 21:44:32 -04:00
Virgil Dupras
9451c599e0
forth: Make (parse) indirect and Forth-ify (parsec)
2020-03-17 21:19:56 -04:00
Virgil Dupras
4212d5161f
forth: Word-ify number parsing
2020-03-17 17:46:58 -04:00
Virgil Dupras
707f1dbae1
forth: Word-ify "[COMPILE]"
2020-03-17 17:29:03 -04:00
Virgil Dupras
b72901175e
forth: Word-ify "[']" and "'"
2020-03-17 16:17:51 -04:00
Virgil Dupras
d91af99fde
forth: make "'" push 0 when not finding a word
2020-03-17 15:54:17 -04:00
Virgil Dupras
3a70dff53d
forth: add word 'ABORT"'
2020-03-17 15:31:15 -04:00
Virgil Dupras
25b6e75cf7
forth: add words "."" and "(print)"
2020-03-17 15:22:13 -04:00
Virgil Dupras
a40926d710
forth: check PS everywhere
...
It turns out we have to...
2020-03-17 14:56:08 -04:00
Virgil Dupras
6314c60ede
forth: add word ".X"
2020-03-17 14:05:53 -04:00
Virgil Dupras
549cf74e9d
forth: inline code from "apps/lib"
...
Forth-ification of Collapse OS goes forward. What will happen is that assembly
code in apps/ will become Forth code. The concept of an assembler code library
will become obsolete.
However, Forth's core use some of that code. To facilitate the transition, I'm
inlining that code directly in Forth's code.
2020-03-17 12:49:06 -04:00
Virgil Dupras
017a469d9c
forth: Forth-ify "."
2020-03-17 12:26:28 -04:00
Virgil Dupras
839d7097e7
forth: add words "MOD" and "/MOD"
2020-03-16 22:36:29 -04:00
Virgil Dupras
5d5517ac44
forth: allow DEFINE's ";" to be at the start of a newline
...
Previous to this commit, DEFINE's algo would miss a ";" right after a newline.
This allows for a much nicer formatting+comment of core.fs.
2020-03-16 22:09:23 -04:00
Virgil Dupras
aec98a7a3a
forth: separate COMPILE and [COMPILE]
2020-03-16 21:31:43 -04:00
Virgil Dupras
f404c2f4d0
forth: TIL forth source file extension is "fs"
2020-03-16 19:51:10 -04:00
Virgil Dupras
80ab395823
forth: Simplify execution model
...
Change the mainloop so that words are executed immediately after they're read.
This greatly simplifies execution model and allow the "DEFINE" word to become
an IMMEDIATE and stop its "copy from compiled words" scheme.
The downside to this is that flow control words no longer work when being used
directly in the input buffer. They only work as part of a definition.
It also broke "RECURSE", but I've replaced it with "BEGIN" and "AGAIN".
Another effect of this change is that definitions can now span multiple lines.
All in all, it feels good to get rid of that COMPBUF...
2020-03-15 22:46:17 -04:00
Virgil Dupras
7befe56597
forth: improve input flow
...
Readline, instead of being triggered by the end of execution of the last
compiled line is now triggered "just in time", by "WORD".
This allows IMMEDIATE words reading input buffer to span multiple lines
( comments for example, but colon definitions will soon follow ).
2020-03-14 19:10:39 -04:00
