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162 Commits

Author SHA1 Message Date
Virgil Dupras
84090dcd14 zasm: add support for RL r and RR r 
Also, make zasm assemble zasm/util.asm again!
 2019-05-18 15:41:21 -04:00
Virgil Dupras
d47d07757e zasm: fix expr operator priority 2019-05-18 15:17:56 -04:00
Virgil Dupras
068e4327ec zasm: fix false truncation error on "-" expressions 2019-05-18 14:51:11 -04:00
Virgil Dupras
650eec23de zasm: add LD r, (IX/Y+d) support 2019-05-17 23:01:29 -04:00
Virgil Dupras
f44c3e5413 zasm: fix 3-digit hex parsing 2019-05-17 23:00:57 -04:00
Virgil Dupras
cdb6cce914 zasm: add multiplication expressions 2019-05-17 22:22:10 -04:00
Virgil Dupras
157ac03e25 zasm: can now assemble zasm/util.asm! 2019-05-17 20:47:43 -04:00
Virgil Dupras
28d5ebdc8a Make apps folder into a namespace 
To straighten out includes and to pave the way into zasm being part of
the same "include CFS" as parts, we make zasm includes namespaced.
 2019-05-17 20:22:32 -04:00
Virgil Dupras
ae2187ad06 zasm: avoid ';' literal 
Simplifies comment stripping through sed.
 2019-05-17 19:49:37 -04:00
Virgil Dupras
d58cf122a8 zasm: fix regression with lowercase (ix+d) parsing 2019-05-17 19:32:58 -04:00
Virgil Dupras
2a97966bdc zasm: add LD IX/IY, NN instructions 2019-05-17 17:43:42 -04:00
Virgil Dupras
21c49d80cf zasm: allow single quote to contain whitespace 2019-05-17 17:22:16 -04:00
Virgil Dupras
40d5530666 zasm: allow expression in .db 2019-05-17 17:21:49 -04:00
Virgil Dupras
556be3f0ce zasm: allow for whitespace inside string literals 
Also, increase scratchpad size. It wasn't big enough for some
expressions in shell unit.
 2019-05-17 16:44:08 -04:00
Virgil Dupras
f9dac15449 zasm: add support for string literals in .db 2019-05-17 16:17:22 -04:00
Virgil Dupras
16922da3d4 zasm: support multiple elements in .dw and .db 2019-05-17 15:39:28 -04:00
Virgil Dupras
b0318f4891 zasm: make instr unt write directly to ioPutC 
Couldn't get rid of instrUpcode though, too complicated.
 2019-05-17 15:35:49 -04:00
Virgil Dupras
26d6dd1912 zasm: remove direcData buffer 2019-05-17 15:14:38 -04:00
Virgil Dupras
ad7428e471 zasm: make io unit handle PC and output suppression 2019-05-17 14:58:16 -04:00
Virgil Dupras
6547e83f20 zasm: improve comma processing 
We don't treat "," exactly as a whitespace anymore. We have specific
processing for it.
 2019-05-17 14:34:38 -04:00
Virgil Dupras
3a91e9eb46 zasm: add support for PUSH/POP IX/IY 2019-05-17 14:00:37 -04:00
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
2f0dd5d668 zasm: iiiiiiiincluuuuuuudes!!1! 2019-05-16 21:15:00 -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
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
d6f5cf5b90 zasm: fix first pass inversion bug 
Also, confirm in tests that we can refer to other symbols in `.equ`.
 2019-05-12 08:50:29 -04:00
Virgil Dupras
89848dbfe2 zasm: add support for .equ 2019-05-11 22:11:05 -04:00
Virgil Dupras
6d4515cd03 zasm: little code reorganisation 2019-05-10 21:19:34 -04:00
Virgil Dupras
95f53d0ce3 zasm: support symbols in .dw directive 2019-05-10 21:17:19 -04:00
Virgil Dupras
c000d5cfb1 zasm: support forward label references! 2019-05-10 21:14:46 -04:00
Virgil Dupras
c239ec7dea zasm: read input in two passes 2019-05-10 20:32:05 -04:00
Virgil Dupras
34ee91a0d7 zasm: use blkdev IDs as input and output 
This will soon allow use to seek and tell on input, which is necessary
for a second pass which is necessary for forward symbol references.

This require making `blkSel` a bit more flexible. Rather than having one
global selected blkdev, each app can select its own, in its own memory
space.
 2019-05-10 19:33:34 -04:00
Virgil Dupras
5a6078df4d zasm: add support for hex literals 2019-05-09 22:14:11 -04:00
Virgil Dupras
b87feac785 zasm: add support for labels! 2019-05-09 21:21:08 -04:00
Virgil Dupras
1c17dcb7a2 zasm: consolidate code 2019-05-09 15:55:29 -04:00
Virgil Dupras
d34aff67bb zasm: Read from and write to streams instead of memory 2019-05-09 15:36:03 -04:00
Virgil Dupras
7f27d63c19 Move apps/zasm/emul to tools/emul 2019-05-09 14:09:40 -04:00
Virgil Dupras
f9ae5ca46b zasm: simplify readWord calling 
It always reads in the scratchpad with the same max size. No need for
DE-dancing anymore.
 2019-05-01 14:19:43 -04:00
Virgil Dupras
6811d98618 zasm: add support for the ".dw" directive 2019-05-01 14:07:01 -04:00
Virgil Dupras
dde5161fc1 zasm: add support for ".db" directive 2019-05-01 11:26:41 -04:00
Virgil Dupras
28e1ba5e26 zasm: adjust parseLine success condition 
De-couple "success" from "wrote something to (DE)" so that directive
parsing can be considered successful without writing to (DE).
 2019-05-01 10:16:57 -04:00
Virgil Dupras
a00bc8cc4b zasm: remove the "token" variable 2019-04-30 22:32:12 -04:00
Virgil Dupras
5fd9b7812c zasm: make each token type parse the remaining of line directly 2019-04-30 21:55:18 -04:00
Virgil Dupras
a7693ffd86 zasm: still inching toward directives 2019-04-30 21:40:22 -04:00
Virgil Dupras
1ffe05dd09 zasm: creep in the notion of directive 2019-04-30 21:27:44 -04:00
Virgil Dupras
8241298c8f zasm: code consolidation 2019-04-30 21:13:37 -04:00
Virgil Dupras
98ad223ee1 zasm: introduce the concept of instruction ID 
It will make tokenization cleaner and it also makes the instruction
table significantly more compact.
 2019-04-30 20:26:41 -04:00
Virgil Dupras
79b5c701f6 zasm: move token variables from tok.asm into main.asm 2019-04-30 17:04:42 -04:00
Virgil Dupras
a7635cb1ea zasm: allow blank lines in asm source code 2019-04-30 16:24:45 -04:00
Virgil Dupras
eb5c974573 zasm: allow leading whitespace in parsed lines 2019-04-30 16:08:56 -04:00
Virgil Dupras
57c3dfece8 zasm: assemble multiple lines at once 2019-04-30 15:51:39 -04:00
Virgil Dupras
2653826dff zasm: move zasm.asm to instr.asm and create main.asm 
instr.asm is for single instruction assembly.
 2019-04-30 13:52:14 -04:00
Virgil Dupras
175e1328e7 zasm: consolidate 
* Build emulated zasm statically
* Improve comments in zasm.asm
* Fix build
* Use unsetZ from core
 2019-04-30 13:45:31 -04:00
Virgil Dupras
b4694225c5 blockdev: change GetC API 
Instead of waiting, GetC always return immediately, with Z indicating if
something was fetched. The "wait" loop is implemented by the called (and
in the new `blkGetCW`).

This simplifies out-of-bounds verifications for storage blockdevs.
 2019-04-22 14:26:16 -04:00
Virgil Dupras
63afa5798b zasm: add a bunch of instructions 2019-04-21 14:49:33 -04:00
Virgil Dupras
8594084b06 zasm: simplify code 2019-04-21 14:23:24 -04:00
Virgil Dupras
93eb262083 zasm: add a bunch of instructions 2019-04-21 14:12:06 -04:00
Virgil Dupras
e9e2f30fc5 zasm: add support for BIT 2019-04-21 13:41:55 -04:00
Virgil Dupras
e073fbff79 zasm: add support for "special instructions" 
Let's not create complex rules for exception cases.
 2019-04-21 12:58:28 -04:00
Virgil Dupras
ecf7d7fbd6 zasm: add a bunch of instructions 2019-04-21 11:49:20 -04:00
Virgil Dupras
056bbde710 zasm: add support for IX/IY with displacement 2019-04-21 10:55:47 -04:00
Virgil Dupras
14a410b024 zasm: extract tok.asm from zasm.asm 2019-04-21 09:25:52 -04:00
Virgil Dupras
89972ca210 zasm: add a bunch of instructions 2019-04-20 23:03:13 -04:00
Virgil Dupras
115dc18971 zasm: add support for extended instructions 2019-04-20 22:37:38 -04:00
Virgil Dupras
70f61ec451 zasm: a bit of refactoring 2019-04-20 20:35:45 -04:00
Virgil Dupras
f6dddaa380 zasm: add automated tests and fix a bunch of bugs 
A python script generates all possibilities for all supported
instructions and compare zasm output with scas. After having fixed a
couple of bugs, all tests pass!
 2019-04-17 21:03:20 -04:00
Virgil Dupras
8ce528c752 zasm: add a bunch of instructions 2019-04-17 17:08:45 -04:00
Virgil Dupras
76caf944dd zasm: add support for the "e" arg type (djnz, jr) 2019-04-17 16:26:04 -04:00
Virgil Dupras
c5c8369ce9 zasm: Add support for (NN) constants 2019-04-17 16:04:24 -04:00
Virgil Dupras
e1d6178457 zasm: add a bunch of instructions 2019-04-17 15:25:35 -04:00
Virgil Dupras
7996a9997a zasm: add support for numerical constants 2019-04-17 14:47:42 -04:00
Virgil Dupras
3fe5eb3e60 zasm: add a bunch of primary instructions 2019-04-17 11:37:49 -04:00
Virgil Dupras
a7dc1e7b4a zasm: make "RET cc" work 2019-04-17 11:06:51 -04:00