Virgil Dupras
f8bd8eeaaf
Make userspace parse args the same way the shell does
2019-06-02 14:05:20 -04:00
Virgil Dupras
83771b538f
fs: check for file size bounds in GetC
2019-05-31 11:12:29 -04:00
Virgil Dupras
6403ab1acf
zasm: add support for SRL r
2019-05-30 14:46:25 -04:00
Virgil Dupras
328f44814e
Make blockdev pointers 32 bits
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This allows us to break through the 64K limit for includes CFS in zasm,
a limit we were dangerously close to breaking. In fact, this commit
makes us go over that limit. Right in time!
2019-05-28 19:42:35 -04:00
Virgil Dupras
2c80924df9
zasm: indicate include lineno in errors
2019-05-28 09:57:29 -04:00
Virgil Dupras
8def8e7c38
zasm: add lineno to error reports
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For now, top-level only
2019-05-27 20:52:40 -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
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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
c40bc329d5
zasm: fix expr returning wrong values on first pass
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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 "$" symbol
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Allows for the ".fill x-$" 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
fa3b86a5c1
zasm now bootstraps itself without scas!
2019-05-19 20:44:19 -04:00
Virgil Dupras
bc1496a7e3
zasm emul: bring back kernel/user distinction
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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
d9fff16157
zasm emul: get rid of the kernel/user distinction
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Made things complicated for nothing.
2019-05-19 09:14:40 -04:00
Virgil Dupras
98695f9912
zasm: de-index symRegister
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Make symRegister's logic pointer-based so we can break through the 0x100
limit.
2019-05-19 09:06:24 -04:00
Virgil Dupras
f44c3e5413
zasm: fix 3-digit hex parsing
2019-05-17 23:00:57 -04:00
Virgil Dupras
28d5ebdc8a
Make apps folder into a namespace
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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
807bd70b63
zasm emul: add dumpSymbolTable debug routine
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Very helpful...
2019-05-17 13:22:45 -04:00
Virgil Dupras
7083116379
zasm: remove JUMP_ prefixes
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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
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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
def6c2123d
tools/emul: clean up the place a bit
2019-05-17 07:23:59 -04:00
