Commit Graph

26 Commits

Author SHA1 Message Date
Virgil Dupras
41cefb7460 Extract EMIT-dependent routines from core 2020-04-04 08:08:45 -04:00
Virgil Dupras
b575d7f863 Move (print) and (uflw) from icore to core 2020-04-03 07:44:44 -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
b7244f8985 forth: shrink forth.asm's binary size 2020-03-31 22:11:44 -04:00
Virgil Dupras
7d5b1f5cea forth: Forth-ify parseDecimal 2020-03-31 15:04:28 -04:00
Virgil Dupras
031bfc6d72 forth: setup SYSVNXT in Forth code 2020-03-30 21:48:56 -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
f366732424 forth: Forth-ify "DOES>" 2020-03-30 20:01:59 -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
e984efe6c3 forth: Forth-ify SYSVNXT 2020-03-30 14:19:47 -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
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
409a9f87e5 forth: replace "ROUTINE" with "JTBL" 2020-03-27 19:53:28 -04:00
Virgil Dupras
684cb028ff forth: add words "[" and "]" 2020-03-27 15:25:20 -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
04a6784de4 forth: Forth-ify "(sysv)" 2020-03-25 08:39:44 -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
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
f4b969986d forth: Forth-ify "."" 2020-03-21 17:21:01 -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
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
b335e538b4 Move "forth" folder to project's root folder
It's not really an App.
2020-03-18 22:25:44 -04:00