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Commit Graph

13 Commits

Author SHA1 Message Date
Virgil Dupras
213614af33 lib/expr: make recursion process a bit more orderly
Instead of going left and right, finding operators chars and replacing them
with nulls, we parse expressions in a more orderly manner, one chunk at a
time. I think it qualifies as "recursive descent", but I'm not sure.

This allows us to preserve the string we parse and should also make the
implementation of parens much easier.
2019-12-29 11:42:18 -05:00
Virgil Dupras
d9db0a824e Make makefiles and shell scripts portable
It's no longer required to use `gmake` under OpenBSD and shell scripts
no longer require bash.
2019-12-09 09:45:22 -05:00
Virgil Dupras
8926c33ab1 Fix tools/tests/zasm/runtests.sh shebang
It needs bash after all. On OpenBSD, /usr/sh works, but not on Ubuntu.
2019-10-10 15:22:21 -04:00
Virgil Dupras
fe15bafeca zasm: fix bug with registry selection
During expression parsing, if a local label was parsed, it would
select the local registry and keep that selection, making
subsequent global labels register in the wrong place.
2019-07-20 18:07:52 -04:00
Virgil Dupras
a7afbe091e tools/tests: remove scas requirement
I'm about to break compatibility with scas. Before I do that, I
need to adjusts tests. Instead of running scas to compare results,
we commit expected result as binaries directly in the repo.
2019-07-20 17:13:57 -04:00
Virgil Dupras
9a72f10221 zasm: includes CFS is now built on-the-fly by zasm.sh
This makes for a much more usable zasm linux binary that doesn't have to
be rebuilt every time apps or kernel change.
2019-06-02 19:57:40 -04:00
Virgil Dupras
22e990ed89 Parametrize zasm linux bin's include CFS file
... instead of embedding it in the binary itself. Additionally, add a
"zasm.sh" wrapper to faciliate zasm calls on a linux machine.
2019-06-02 15:50:59 -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
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
157ac03e25 zasm: can now assemble zasm/util.asm! 2019-05-17 20:47:43 -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
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