Virgil Dupras
974018831e
Add chained comparison support
2020-04-05 16:11:17 -04:00
Virgil Dupras
7b34268a9a
Add "DUMP" word
2020-04-05 13:53:03 -04:00
Virgil Dupras
7df7416e9e
fmt: add word ".x" and fix .X to 4 chars output
...
Simpler code, more predictable output.
2020-04-05 12:15:43 -04:00
Virgil Dupras
58e88119ec
rc2014: Forth Collapse OS, fully operational!
2020-04-05 09:09:00 -04:00
Virgil Dupras
edb2771488
rc2014: bingo!
...
Interpreter is functional in the emulator!
2020-04-04 17:43:00 -04:00
Virgil Dupras
7b42bbde27
rc2014: aaalmost there...
...
Red 5 standing by.
2020-04-04 17:07:35 -04:00
Virgil Dupras
32b420b19c
readln: fix typo
2020-04-04 14:26:41 -04:00
Virgil Dupras
435b4f452c
Move ASCII constants from str unit to print
2020-04-04 10:28:00 -04:00
Virgil Dupras
2af959a13d
Don't use IMMEDIATE in icore
...
Since the fix of its RAM addr, we use the wrong CURRENT in every
usage of IMMEDIATE in icore. We therefore have to manually set the
flag for all 3 immediate words in that unit.
2020-04-04 08:40:55 -04:00
Virgil Dupras
c972c70ab1
Use proper RAM addr for CURRENT in IMMEDIATE
2020-04-04 08:11:30 -04:00
Virgil Dupras
41cefb7460
Extract EMIT-dependent routines from core
2020-04-04 08:08:45 -04:00
Virgil Dupras
d013c572ad
Use proper RAM addr for HERE in SCPY
2020-04-04 07:34:38 -04:00
Virgil Dupras
80891d7ec1
Add in-memory bootstrapping system
...
This should help with the bootstrapping of non-emulated environment.
For example, I have a problem with the RC2014: I can't send it
bootstrap info until the ACIA is up. I need to find a way...
2020-04-03 20:13:11 -04:00
Virgil Dupras
b575d7f863
Move (print) and (uflw) from icore to core
2020-04-03 07:44:44 -04:00
Virgil Dupras
c56386af02
wip
2020-04-02 23:21:53 -04:00
Virgil Dupras
b162ef84f5
forth: fix broken RAM+
2020-04-02 13:42:49 -04:00
Virgil Dupras
e284081c79
forth: fix readln overflow handling
...
It was badly handled.
2020-04-02 13:40:22 -04:00
Virgil Dupras
941791d609
forth: remove RAMSTART and RS_ADDR from stable ABI
2020-04-02 11:39:40 -04:00
Virgil Dupras
2481ed4b66
forth: remove dummy.fs
...
All "stop pings" are now explicitly made at appropriate places. This
fixes a problem I've introduced in the last commit where RAM+ was
unexpectedly part of a stable ABI because of "HERE" usage in dummy.fs.
This system will, anyways, soon change because boot.bin and z80c.bin
will be built during the same process (but there's a bit of retooling
to do before I get there).
2020-04-02 11:29:23 -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
d0c5d3a741
Forth self-bootstraps!!!
...
This commit cuts Forth's dependency on zasm. It now self-assembles
its own boot-binary! Things are a bit messy now, I'll clean up
later.
2020-04-01 22:19:37 -04:00
Virgil Dupras
e846d07238
forth: simplify build process
...
Make LATEST configurable through a value in the binary instead of through
a ZASM constant. This enables the simple concatenation of compiled dicts and
simplifies the build process.
2020-04-01 08:54:01 -04:00
Virgil Dupras
b7244f8985
forth: shrink forth.asm's binary size
2020-03-31 22:11:44 -04:00
Virgil Dupras
1e85d60d89
forth: Forth-ify ","
2020-03-31 16:32:50 -04:00
Virgil Dupras
7d5b1f5cea
forth: Forth-ify parseDecimal
2020-03-31 15:04:28 -04:00
Virgil Dupras
25814c0b8b
forth: add label system to z80 assembler
2020-03-31 09:23:00 -04:00
Virgil Dupras
ce6e31dda1
forth: inline "strcmp"
2020-03-31 08:02:40 -04:00
Virgil Dupras
031bfc6d72
forth: setup SYSVNXT in Forth code
2020-03-30 21:48:56 -04:00
Virgil Dupras
e5ab0dd1c9
forth: a little bit of ASM routine inlining
2020-03-30 21:33:37 -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
05045b2aa4
forth: move stable ABI stuff at the top of forth.asm
...
Now we're having a real nice and tidy forth.asm...
2020-03-30 21:02:19 -04:00
Virgil Dupras
f366732424
forth: Forth-ify "DOES>"
2020-03-30 20:01:59 -04:00
Virgil Dupras
36e200adbb
forth: Forth-ify "SCPY"
2020-03-30 17:59:30 -04:00
Virgil Dupras
5b01f797fc
forth: Forth-ify "(find)"
2020-03-30 17:36:15 -04:00
Virgil Dupras
de3da19333
forth: Forth-ify "NOT"
2020-03-30 17:26:51 -04:00
Virgil Dupras
4756fb7763
forth: Forth-ify "(parsed)"
2020-03-30 17:21:13 -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
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
e984efe6c3
forth: Forth-ify SYSVNXT
2020-03-30 14:19:47 -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
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