Virgil Dupras
5301200d6f
basic: parseExpr --> parseExprDE
2019-12-23 19:01:03 -05:00
Virgil Dupras
476178ee7c
zasm: parseExpr --> parseExprDE
2019-12-23 18:44:55 -05:00
Virgil Dupras
cc754e12aa
parseExpr --> parseExprDE: easy ones
...
Those replacements were trivially equivalent. For the other ones, an
examination of the context is necessary.
2019-12-23 15:59:55 -05:00
Virgil Dupras
a034f63e23
test: begin adding common test harnessing code
...
This should make tests a bit more convenient to write and debug.
Moreover, begin de de-IX-ization of parseExpr. I have, in a local WIP, a
parseExpr implemented using a recursive descent algo, it passes all tests, but
it unfortunately assembles a faulty zasm. I have to find the expressions that
it doesn't parse properly.
But before I do that, I prefer to commit these significant improvements I've
been making to tests harness in parallel of this development.
2019-12-23 15:41:25 -05:00
Virgil Dupras
98ca338aba
avra: add LD/ST
2019-12-22 21:50:20 -05:00
Virgil Dupras
51e500e8da
avra: avoid pgm addr truncation error on first pass
2019-12-22 19:44:46 -05:00
Virgil Dupras
b955a67daa
avra: add TST
2019-12-22 19:24:36 -05:00
Virgil Dupras
6e1e8e0e59
avra: add LSL
2019-12-22 18:36:15 -05:00
Virgil Dupras
8ded02bc78
avra: fix misordered MOV, MUL, NEG and NOP
2019-12-22 18:35:08 -05:00
Virgil Dupras
f54e10f9fd
avra: add CALL and JMP
2019-12-22 15:54:46 -05:00
Virgil Dupras
10b925e0e0
avra: add BCLR and BSET
2019-12-22 15:11:15 -05:00
Virgil Dupras
1771ee8da7
avra: add SER
2019-12-22 15:01:08 -05:00
Virgil Dupras
0a9ac27cf6
avra: add SBIC and SBIS
2019-12-22 14:55:38 -05:00
Virgil Dupras
a9dcba5793
avra: add CBR instruction
2019-12-22 14:45:10 -05:00
Virgil Dupras
c968995ec0
avra: add CBI and SBI
...
This completes instruction support for the Blink tn45 example.
2019-12-15 20:51:31 -05:00
Virgil Dupras
5c43988649
avra: code consolidation
2019-12-15 20:15:44 -05:00
Virgil Dupras
b130cac635
avra: code consolidation
2019-12-15 19:17:03 -05:00
Virgil Dupras
52359a4e42
avra: a little code deduplication
2019-12-15 18:52:00 -05:00
Virgil Dupras
e9c692ed50
avra: a litte bit of code deduplication
2019-12-15 18:34:14 -05:00
Virgil Dupras
2652c81519
avra: make CLR work properly
2019-12-15 16:43:32 -05:00
Virgil Dupras
20861767e6
avra: generalize arg swapping behavior
2019-12-15 16:36:43 -05:00
Virgil Dupras
14fbfa2967
avra: small _parseArgs refactoring
...
Take argspec pairs directly as an argument instead of taking a
pointer to an argspec pair.
2019-12-15 16:25:16 -05:00
Virgil Dupras
62eb5589c3
avra: refactor instruction tbl
...
The instruction table is now beefier and has redundant data, but
this simplifies processing. This should simplify upcoming work.
2019-12-15 15:53:28 -05:00
Virgil Dupras
aa8df95f7d
Add "avr/" includes folder
...
Also, add a "real world" example in AVRA tests, a blink program on
a ATtiny45. Some instructions are commented out because they aren't
implemented yet, but not many.
The output of the program has been verified against AVRA's own
output.
2019-12-15 09:38:01 -05:00
Virgil Dupras
64935d8b40
avra: add IN and OUT instructions
2019-12-15 08:43:59 -05:00
Virgil Dupras
ab578159b7
avra: refactor args parsing
...
This costs us a bit of space for now but should make things a lot
simpler down the road, especially with "alias ops" which are simple
syntactic sugar for another op.
2019-12-14 15:17:55 -05:00
Virgil Dupras
fa75f30ffb
avra: add RJMP and RCALL instructions
2019-12-14 12:28:27 -05:00
Virgil Dupras
33c480a5dd
avra: remove useless instrBRBits table
...
I had written this when trying different approaches to adding BR and
I forgot to remove it.
2019-12-14 09:41:36 -05:00
Virgil Dupras
a5efc695e9
avra: add "Rd + bit" instructions
2019-12-14 09:33:46 -05:00
Virgil Dupras
c696fcbce4
avra: add "with immediate" instructions
2019-12-14 09:05:38 -05:00
Virgil Dupras
4b9712a224
avra: add branching instructions
2019-12-13 22:49:15 -05:00
Virgil Dupras
57c1a10434
avra: first steps
2019-12-13 17:38:40 -05:00
Virgil Dupras
e691dab070
zasm: little drive-by optimization
...
Use IX directly for argspec rows instead of going through DE. It saves a bit
of processing. The code was this way because I initially didn't use IX at all,
so as code evolved, that DE translation stayed as an artifact.
2019-12-13 10:54:01 -05:00
Virgil Dupras
0d7693a163
core: remove writeHLinDE
...
It wasn't used much so I inlined it.
2019-12-13 09:56:23 -05:00
Virgil Dupras
4f7a05e3b7
core: remove cpHLDE
...
It wasn't used much, so I replaced its use in the kernel with direct code
and moved the routine in apps/ed, the only other place where it was used.
2019-12-12 15:53:14 -05:00
Virgil Dupras
43f4c5200e
basic: don't choke on ':' in '"' literals
2019-12-12 12:22:38 -05:00
Virgil Dupras
3db38b0d89
basic: add while command
2019-12-12 11:17:10 -05:00
Virgil Dupras
51c977f2ed
basic: allow multiple commands on the same line
2019-12-12 10:51:13 -05:00
Virgil Dupras
1710c865dc
doc: refer to the new BASIC shell in example
...
ref #80
2019-12-11 14:57:07 -05:00
Virgil Dupras
25d25d017c
Replace old shell with BASIC shell
...
fixes #80
2019-12-11 14:05:34 -05:00
Virgil Dupras
20151a97f8
recipes/rc2014/zasm: use BASIC shell
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Also made Makefile actually portable.
2019-12-11 13:01:51 -05:00
Virgil Dupras
880775ae69
recipes/rc2014/sdcard: use BASIC shell
2019-12-11 11:18:32 -05:00
Virgil Dupras
beaea6f978
basic: add puth command
2019-12-09 14:34:14 -05:00
Virgil Dupras
105acedab8
basic: improve README
...
markdown formatting was broken. Also, don't mark it as WIP.
2019-12-01 20:15:45 -05:00
Virgil Dupras
10864afa96
recipes/ti84: use the BASIC shell
2019-12-01 20:11:13 -05:00
Virgil Dupras
4c07639808
basic: make cmd table more compact
...
This shaves off quite a few bytes from the binary.
2019-11-30 21:36:34 -05:00
Virgil Dupras
4ba84dac5c
basic: add getc/putc commands
2019-11-30 21:13:44 -05:00
Virgil Dupras
77485a0031
basic: change welcome prompt
...
This is becoming the new shell, it has to step up to its new responsibilities!
2019-11-30 20:50:34 -05:00
Virgil Dupras
fc23a7c4a1
basic: do registers-to-vars transfer after pgm hook call
2019-11-25 23:16:15 -05:00
Virgil Dupras
264e72e0fd
basic: add fnew and fdel commands
2019-11-25 22:49:24 -05:00
