e97b446ac3
5594 - rename 'desugar' to 'sigils'
...
There's going to be multiple forms of syntax sugar going forward.
2019-08-31 20:43:41 -07:00
333525360b
5592 - switch register names to lowercase
2019-08-26 11:59:21 -07:00
22fb844ba4
5591
2019-08-26 11:54:29 -07:00
e0d034b565
5590
2019-08-25 23:33:49 -07:00
fc55af70a5
5589
2019-08-25 23:25:08 -07:00
d8c2f71ce9
5586 - bugfix: no desugar inside string literals
2019-08-25 22:03:23 -07:00
7c878eb0ea
5583
...
Clean up some missing error messages.
2019-08-25 16:29:10 -07:00
9ac3fde9ab
5581
2019-08-25 15:12:56 -07:00
57fdbeb2b6
.
2019-08-25 15:07:46 -07:00
0d3b3ef04a
Merge branch 'master' into desugar
2019-08-25 15:04:26 -07:00
0a288d46b9
desugar: more integration tests
2019-08-25 14:45:21 -07:00
3cf0ec28d4
desugar: code-generation seems complete
2019-08-25 14:33:26 -07:00
f40528078d
desugar: parsing seems complete
2019-08-25 00:59:52 -07:00
380fc367b8
parsing *(reg-disp)
2019-08-25 00:32:24 -07:00
d230393c92
parsing *(reg+reg)
...
Turns out there's an ambiguity even in this simple one-line language:
when you see 'base+' you don't know whether the next token is the index
or displacement. (Whereas a '-' would be unambiguous but is still not
handled.)
Fixing this ambiguity adds 15 instructions worth of complexity.
2019-08-25 00:27:42 -07:00
be063736d0
parsing *(reg+disp)
2019-08-24 23:42:04 -07:00
cf529da986
.
2019-08-24 13:28:20 -07:00
4f8b2bd2fb
integration tests for desugaring indirect mode
...
They caught a logic error.
2019-08-24 13:06:34 -07:00
9191049790
integration tests for desugaring direct mode
2019-08-24 13:06:10 -07:00
ab412890e5
use the results of parsing in emit-indirect-mode
2019-08-24 11:45:48 -07:00
23ee933e12
parsing *(reg)
2019-08-24 11:36:37 -07:00
33de6b8031
build out all variants for skipping whitespace
...
skip {whitespace, non-whitespace} x {from stream, from slice}
2019-08-24 08:18:09 -07:00
60d59aec85
.
...
This is pretty complex, but I may not need any more registers.
2019-08-23 15:33:13 -07:00
e4ca252873
.
2019-08-23 15:04:47 -07:00
88469e78ae
.
...
Some reorg as I realize I may have painted myself into a corner in this
function. I have no registers left for the actual parsing.
2019-08-23 14:23:25 -07:00
4b296ceef9
parsing *reg
...
Isn't used yet, but baby steps.
2019-08-23 13:51:29 -07:00
fee05edddd
another error message
2019-08-23 11:21:13 -07:00
4949dda554
.
2019-08-23 11:07:26 -07:00
ba5a2eff2c
lexing complex expressions inside '*(...)'
2019-08-23 01:27:36 -07:00
ab87ccf62e
couple of helpers for parsing expressions in parens
2019-08-22 00:25:41 -07:00
0bb09d2e14
5522 - example app: random number stream
...
Turns out Mu's kernel isn't populating /dev/random correctly.
2019-08-20 00:20:38 -07:00
db1874cae2
.
2019-08-16 14:09:56 -07:00
67dac668e3
sketch of a plan to implement indirect mode
2019-08-16 14:08:40 -07:00
c78f6b780b
desugar: code-generate *reg
2019-08-16 00:34:27 -07:00
343666bea3
plan for supporting indirect mode
...
It may superficially seem like there's a simpler approach:
- emit '3/mod' or '0/mod' depending on whether the character is '%' or '*'
- increment the start of word-slice
- look up the register and emit the appropriate /rm32
But that won't work for 1/mod or 2/mod. We're doing a little bit of
upfront planning.
2019-08-16 00:28:44 -07:00
05b95e0aaf
.
2019-08-16 00:12:31 -07:00
37ea8c410e
.
2019-08-16 00:10:55 -07:00
dbb380b87f
add desugar to CI
2019-08-13 22:32:54 -07:00
306812cc30
done implementing all variants of 'get'
2019-08-13 22:13:14 -07:00
328a8e11f6
done with get-or-stop
2019-08-13 17:15:08 -07:00
0059698b0b
half-done testing get-or-stop
...
Probably not needed for desugar; I'm just working through what we may
replace the calls to 'get-slice' with if and when we decide to start
focusing error messages and so writing tests for them.
2019-08-13 12:40:25 -07:00
63b8b18ef7
standardize test input/output/error streams
2019-08-13 12:27:15 -07:00
64e8faba37
.
2019-08-13 12:19:49 -07:00
bfb2a8c0f0
get desugar working on the commandline
2019-08-13 10:57:05 -07:00
64d51af46f
.
2019-08-13 09:55:28 -07:00
d826a2d659
new variant: maybe-get-slice
2019-08-13 00:06:18 -07:00
2b48729fd2
new variant: maybe-get returns null on failure
2019-08-12 23:39:53 -07:00
15a84e2449
better error message when get aborts
2019-08-12 23:18:31 -07:00
94d68ac244
extract table functions into their own layer
2019-08-11 23:30:20 -07:00
37c859058d
table-based register conversion
...
Requires a change to the C++ translator: support string literals in all
segments, not just the code segment.
(The self-hosted translator already had this.)
2019-08-01 14:50:19 -07:00
70decc7aef
.
...
First step to cleaning up `desugar-register`: extract the common '%' to
register literals.
2019-08-01 10:54:27 -07:00
d0016e126f
desugar: code-generate %reg
...
We're no longer just emitting the register code. We emit all arguments
with appropriate metadata.
2019-07-31 19:18:28 -07:00
34c86ff559
.
2019-07-31 17:37:09 -07:00
129d812c2e
Merge branch 'master' into desugar
2019-07-31 17:35:15 -07:00
0b4e8494d6
desugar: clean up top-level `convert`
...
Model it on `dquotes` rather than `pack`, since it needs almost zero
state across words.
Manual testing:
$ echo 'ab %eax' |subx run apps/desugar
ab 0
2019-07-31 17:34:30 -07:00
1ed1d1c842
5499
2019-07-31 15:28:23 -07:00
070d5f2fc8
Merge branch 'master' into desugar
2019-07-28 13:40:29 -07:00
6e1eeeebfb
5485 - promote SubX to top-level
2019-07-27 17:47:59 -07:00
Kartik Agaram