66188f6984
Add a halt mechanism
2026-02-28 20:00:22 +00:00
b06f32bbe3
Define some additional memory codewords
2026-02-28 20:00:22 +00:00
95d82a91c2
Indent loops, ifs etc
2026-02-28 13:10:26 +00:00
aceeebd3ff
Move definition of $execute function
2026-02-28 13:09:22 +00:00
fa5a6dbb1d
Add EXECUTE
2026-02-28 02:06:51 +00:00
093e4188bd
Fix wrong branch offset in FIND
2026-02-28 01:36:27 +00:00
973eba9f0a
Fix NUMBER?
...
I wasn't able to keep the length the same so had to update the
addresses of , IMMEDIATE? INTERPRET QUIT and the cold start (and
therefore also the values of LATEST and HERE).
2026-02-27 22:56:26 +00:00
4f50321c26
Fix FIND
2026-02-27 22:40:15 +00:00
c57792f7c7
Fix 0<> address in WORD
2026-02-27 19:54:35 +00:00
6474c2f227
Logically flip SPACE? to NSPACE
...
WORD was using it like this, and it's easier to fix it this way rather
than insert an INVERT into WORD.
2026-02-27 19:52:44 +00:00
42a9c5db08
Fix 0BRANCH function table entry
2026-02-27 19:50:50 +00:00
83022925f7
Fix bugs from round 1 of debugging
...
There were several issues I ran into immediately:
- The cold start was pointing to the dictionary entry of QUIT instead
of the CFA
- The RSP needed to be set before calling QUIT, as DOCOL uses the
return stack
- I'd forgotten LITs before values in a couple of places
- I'd not accounted for LITs in several branch offsets
- A few dictionary links were wrong
2026-02-27 18:35:17 +00:00
74ff0b037c
Set values of HERE and LATEST
2026-02-27 16:20:36 +00:00
ca6ac0f9bf
Implement cold start
2026-02-27 16:20:36 +00:00
2fafd02e28
Compile QUIT
2026-02-27 16:20:36 +00:00
bf65c7470a
Compile INTERPRET
2026-02-27 16:20:36 +00:00
62f3bff926
Compile IMMEDIATE?
2026-02-27 16:20:36 +00:00
797a95204f
Compile ,
2026-02-27 16:20:36 +00:00
c4303cc2ca
Compile NUMBER?
2026-02-27 16:20:36 +00:00
78d45c61de
Compile NEGATE
2026-02-27 16:20:36 +00:00
dda02a1d9f
Compile DIGIT
2026-02-27 16:20:36 +00:00
c2b0c55893
Compile >CFA
2026-02-27 16:20:36 +00:00
a8c51d0703
Compile FIND
2026-02-27 16:20:36 +00:00
a4e7673b7a
Compile NAME-LEN
2026-02-27 16:20:36 +00:00
938bd98ef6
Untabify WAT source
2026-02-27 16:20:36 +00:00
777531abc4
Compile STRING=
2026-02-27 16:20:36 +00:00
a7c96fc56c
Compile WORD
2026-02-27 16:20:36 +00:00
05a3e72669
Compile SPACE?
2026-02-27 16:20:36 +00:00
55bc5060e4
Compile TUCK
2026-02-27 16:20:36 +00:00
93f0b312a8
Re-wrap top comment
2026-02-26 18:30:49 +00:00
ef8e9ad3fd
Add source code comments for colon words
2026-02-26 18:20:42 +00:00
dde7d0d710
Fill in addresses of constants and variables (and add a few more)
2026-02-26 18:10:56 +00:00
5dcc5de722
Reword comment about $trampoline a little
2026-02-26 18:10:43 +00:00
59ee6149e5
Switch to -1 for true, 0 for false
...
This means you can use the bitwise operators for booleans too.
2026-02-26 18:09:36 +00:00
3b3807e802
Fix 0BRANCH implementation
2026-02-26 18:09:04 +00:00
c2a8b304b1
Fix INVERT's link
2026-02-26 18:08:50 +00:00
9d671ad8ef
Fix 2DUP implementation
2026-02-26 18:07:49 +00:00
db13287c91
Implement BRANCH and 0BRANCH
2026-02-25 21:37:27 +00:00
a830998617
Replace local set then get with tee
2026-02-25 21:29:14 +00:00
cc7609b847
Implement a bunch of core forth stuff
...
Not quite ready yet, but getting there.
2026-02-25 13:45:52 +00:00
d3e2407f3b
Create initial emulator and hello world demo
2026-02-24 15:52:48 +00:00
