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Author SHA1 Message Date
Virgil Dupras
c1b09123f1 zasm: add support for RETI and RETN 2019-05-17 13:21:49 -04:00
Virgil Dupras
072aad775a zasm: don't match prefixes in symFind 
Only match when full names match.
 2019-05-17 13:14:16 -04:00
Virgil Dupras
92a119105d zasm: add support for "0b" literals 2019-05-17 10:34:01 -04:00
Virgil Dupras
0f5fab23e9 zasm: don't accept "0X" prefix for hex anymore 
This was only necessary in the time where input was upcased right after
reading.
 2019-05-17 10:03:36 -04:00
Virgil Dupras
4075c90d44 Add unit test for zasm's parse unit 2019-05-17 10:00:30 -04:00
Virgil Dupras
7083116379 zasm: remove JUMP_ prefixes 
They serve no purpose and make the code less flexible.
 2019-05-17 09:50:11 -04:00
Virgil Dupras
013a3b74c8 Add the concept of unit tests 
Will be much much easier to tests new core routines without having to
re-create their context first.

Also, extract parse.asm from core.asm
 2019-05-17 09:33:20 -04:00
Virgil Dupras
e4ffe669a1 acia: make zasm-friendly 2019-05-17 08:33:22 -04:00
Virgil Dupras
45b8e84e2a shell: de-macro-ize 2019-05-17 08:21:37 -04:00
Virgil Dupras
56760b5aba stdio: de-macro-ize 2019-05-17 08:14:19 -04:00
Virgil Dupras
dfce0d3a62 tools/emul: fix shell RAMSTART 2019-05-17 07:55:28 -04:00
Virgil Dupras
def6c2123d tools/emul: clean up the place a bit 2019-05-17 07:23:59 -04:00
Virgil Dupras
2f0dd5d668 zasm: iiiiiiiincluuuuuuudes!!1! 2019-05-16 21:15:00 -04:00
Virgil Dupras
a2d6cea72f cfspack: fix bug where we would underallocate blocks 2019-05-16 21:07:57 -04:00
Virgil Dupras
ede228374c fs: allow fsNext to skip more than one block 
When B>1, fsNext failed because HL was changed in the Seek call.
 2019-05-16 13:59:52 -04:00
Virgil Dupras
e18879fcb2 zasm emul: hook fsdev in glue code 2019-05-16 13:23:23 -04:00
Virgil Dupras
df67a38f81 Extract fs_cmds.asm from fs.asm 2019-05-16 13:20:29 -04:00
Virgil Dupras
23f0dc18ca zasm emul: add tooling for includes fsdev 
On build, pack `parts/z80` into a CFS and embed it into the emulated
zasm executable as an fsdev. This will allow for the upcoming include
directive to have something to go to.

For now, this is useless except for inflating the emulated zasm's size.
 2019-05-16 12:07:57 -04:00
Virgil Dupras
22c7eeaa5d Move apps/zasm/tests to tools/tests/zasm 
This 'apps' folder is going to disappear. Everything is going to be a
"part" to be assembled through recipes. 'apps' has no meaning.
 2019-05-16 11:23:15 -04:00
Virgil Dupras
0ae91e55ec zasm: big local symbols overhaul 2019-05-16 08:26:00 -04:00
Virgil Dupras
e9244b80ee zasm: big I/O overhaul 
Instead of buffering input in memory one line at a time, we go in "just
in time" mode and always read contents directly from I/O, without
buffering.

It forces us to implement a `ioPutback` scheme, but on the other hand it
greatly simplifies cases where multiple tokens are on the same line
(when a label is directly followed by an instruction).

The end result feels much more solid and less hackish.
 2019-05-16 07:53:42 -04:00
Virgil Dupras
34ff0a6c2a zasm: consolidate code 2019-05-15 15:27:33 -04:00
Virgil Dupras
a2b5b1efab zasm: add one layer of indirection in symbol registry 
We'll need it for an upcoming "local labels" registry.
 2019-05-15 14:30:41 -04:00
Virgil Dupras
fa28d64278 zasm: change ioRewind to ioSeek 
Will need it soon.
 2019-05-15 13:41:56 -04:00
Virgil Dupras
33a1ee250d zasm: rename curOutputOffset to ZASM_PC 2019-05-15 13:31:49 -04:00
Virgil Dupras
a994867a86 Wohoo! zasm assembles core.asm!!! 2019-05-14 16:50:35 -04:00
Virgil Dupras
b0218349ff zasm: support multiple instructions on single line 2019-05-14 16:45:56 -04:00
Virgil Dupras
23fd493013 core: make a bit more zasm-friendly 2019-05-14 16:42:44 -04:00
Virgil Dupras
1010e8372c zasm: add support for subtractions in expressions 2019-05-14 16:39:10 -04:00
Virgil Dupras
67803f6cb5 zasm: don't upcase char literals 2019-05-14 15:42:15 -04:00
Virgil Dupras
72d2a8f073 zasm: add support for + expressions 2019-05-14 15:26:29 -04:00
Virgil Dupras
99a7c94c9f zasm: make "double parsing" a bit more solid 
It was previously skipped on a local label.
 2019-05-14 14:35:34 -04:00
Virgil Dupras
7972b92be1 zasm: refactoring 2019-05-14 14:32:12 -04:00
Virgil Dupras
2c0166814f zasm: support inline labels 
That is, labels with code following right afterwards.
 2019-05-14 14:10:20 -04:00
Virgil Dupras
a486a2a81e zasm: support char literals 2019-05-14 13:53:12 -04:00
Virgil Dupras
2de69ee7cd zasm: add support for local labels 2019-05-13 20:23:10 -04:00
Virgil Dupras
17dbee6a49 zasm: deduplicate code 2019-05-13 19:47:34 -04:00
Virgil Dupras
746c86cbf8 zasm: make getSymVal not responsible for calling symFind 
With local labels, these two will have to be decoupled.
 2019-05-13 16:53:52 -04:00
Virgil Dupras
c9deac599e zasm: add support for LD r, r' instructions 2019-05-13 16:38:09 -04:00
Virgil Dupras
878bc2919f zasm: add support for relative labels 2019-05-12 22:07:21 -04:00
Virgil Dupras
1e3982d3ab zasm: make DE indicate the last line to be read 
Facilitates debugging
 2019-05-12 21:44:59 -04:00
Virgil Dupras
dd6fa5d38b zasm: properly propagate error conditions 
Gives clearer output on errors. Easier debugging...
 2019-05-12 21:31:11 -04:00
Virgil Dupras
86cad39de4 zasm: fix wrong logic in .numberTruncated error condition 
`xor c` didn't do what I thought it did at the time. Newbie mistake,
there are probably a lot like this scattered around...
 2019-05-12 21:23:24 -04:00
Virgil Dupras
71cbd24e1f Add filesystem docs 2019-05-12 16:06:27 -04:00
Virgil Dupras
4f44d3de63 parts/z80/fs: add "fopn" command 2019-05-12 15:38:58 -04:00
Virgil Dupras
9b4b907236 tools/emul/shell: fix srong SeekL return value 
Also, add warning on attempts to write to ROM.
 2019-05-12 14:32:24 -04:00
Virgil Dupras
51bab80a4c parts/z80/fs: fix fsInitMeta writing to ROM 2019-05-12 14:31:35 -04:00
Virgil Dupras
1ea5bedb4f blockdev: fix broken blkSeek/blkTell 
scas didn't warn about this, but it seems that `jr` calls were out of
range. Seek and Tell was broken. Replacing `jr` with `jp` does the
trick.
 2019-05-12 13:57:37 -04:00
Virgil Dupras
c77d96da22 blockdev: clarify routines specs 2019-05-12 11:45:08 -04:00
Virgil Dupras
a86738ae84 tools/emul/shell: add filesystem support 
With the help of the newly-introduced cfspack tool, we can mount a
filesystem in our emulated shell and play around. Read-only for now.
Unpacking incoming.
 2019-05-12 11:20:31 -04:00