Virgil Dupras
371076190f
zasm: implement error conditions in .equ
2019-05-27 14:07:07 -04:00
Virgil Dupras
436ff51c39
zasm: implement error conditions in .dw
2019-05-27 13:52:58 -04:00
Virgil Dupras
f5d4321ece
zasm: implement error conditions in .db
2019-05-27 13:44:53 -04:00
Virgil Dupras
d76dd54f4b
zasm: add ERR_OVFL
2019-05-27 12:12:21 -04:00
Virgil Dupras
f9118ef88e
xasm: expand ERR_BAD_ARG condition
2019-05-27 12:05:42 -04:00
Virgil Dupras
e1e6d52fea
zasm: add ERR_BAD_FMT
2019-05-27 11:58:12 -04:00
Virgil Dupras
412b3f374a
zasm: add ERR_BAD_ARG
2019-05-27 11:22:38 -04:00
Virgil Dupras
af2c561c6b
zasm: begin erroring out reliably
...
Up until now, invalid source input had undefined behavior. We're now
beginning to define that behavior so that zasm can be a bit more usable.
2019-05-27 11:04:31 -04:00
Virgil Dupras
976a93971c
zasm: improve docs
2019-05-27 10:38:29 -04:00
Virgil Dupras
c40bc329d5
zasm: fix expr returning wrong values on first pass
...
To run a parseExpr on first pass would always return a false success
with dummy value because symbols are configured to always succeed on
first pass. This would make expressions like ".fill 0x38-$" so bad
things to labels because "0x38-$" wouldn't return the same thing on
first and second pass.
Revert to parsing literals and symbols after having scanned for
expressions and add a special case specifically for char literals (which
is why we scanned for literals and symbols first in the first place).
2019-05-20 10:46:27 -04:00
Virgil Dupras
e18f9b53a9
zasm: add support for "$" symbol
...
Allows for the ".fill x-$" pattern.
2019-05-20 09:17:50 -04:00
Virgil Dupras
848a7500bc
zasm: add support for .fill directive
2019-05-20 08:39:53 -04:00
Virgil Dupras
acddb045a5
zasm: add support for .org directive
2019-05-19 14:40:42 -04:00
Virgil Dupras
bc1496a7e3
zasm emul: bring back kernel/user distinction
...
It was a bad idea to remove it. Now that I'm introducing the concept of
a per-app glue file, it becomes much easier to build emulated zasm as a
userspace app.
2019-05-19 12:57:59 -04:00
Virgil Dupras
7fad3b0c90
Move /parts/z80 to /kernel
...
Let go of that "meta os" thing. it's not as meta as I made it sound
like. It's a kernel.
2019-05-19 11:19:41 -04:00
Virgil Dupras
78d9764005
zasm: can now assemble zasm/expr.asm!
2019-05-19 10:45:11 -04:00
Virgil Dupras
6cbce0533a
zasm: can now assemble zasm/instr.asm!
2019-05-19 10:40:45 -04:00
Virgil Dupras
ea8477bb91
zasm: accept whitespaces before separating comma
2019-05-19 10:39:29 -04:00
Virgil Dupras
3b1ef2b9af
zasm: bump global symbol limit to 0x200
2019-05-19 09:54:42 -04:00
Virgil Dupras
44abc79850
zasm: add support for SBC HL, ss
2019-05-19 09:54:02 -04:00
Virgil Dupras
d9fff16157
zasm emul: get rid of the kernel/user distinction
...
Made things complicated for nothing.
2019-05-19 09:14:40 -04:00
Virgil Dupras
98695f9912
zasm: de-index symRegister
...
Make symRegister's logic pointer-based so we can break through the 0x100
limit.
2019-05-19 09:06:24 -04:00
Virgil Dupras
c01816b055
zasm: make instr a bit more zasm-friendly
...
But we're still at a certain distance from assembling it with zasm:
we're busting the 0x100 symbol limit.
2019-05-18 21:07:35 -04:00
Virgil Dupras
bccf933ea9
zasm: try for regular number or symbol before parsing expr
...
Previously, we would mess up literals like '-'.
2019-05-18 21:06:31 -04:00
Virgil Dupras
723497af69
zasm: can now assemble zasm/directive.asm!
2019-05-18 20:37:34 -04:00
Virgil Dupras
9f6ebf538d
zasm: can assemble zasm/tok.asm!
2019-05-18 20:31:52 -04:00
Virgil Dupras
fd11941867
zasm: can now assemble zasm/parse.asm!
2019-05-18 19:59:58 -04:00
Virgil Dupras
2ce6b61964
zasm: add support for RLC r and RRC r
2019-05-18 19:59:31 -04:00
Virgil Dupras
29f0bcbe23
zasm: can now assemble zasm/symbol.asm!
2019-05-18 18:56:27 -04:00
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
