| Commit message (Collapse) | Author | Age | Files | Lines |
|---|
| ... | |
| |
|
|
|
|
|
| |
Bugfix in scenarios where scan-next-byte needs to abort.
I'm starting to have trouble keeping strings, streams and buffered-files
straight.
|
| | |
|
| | |
|
| | |
|
| | |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |
Clean up a few things:
a) Call scan-next-byte in hex.subx with the right number of args. Turns
out tests continue to work fine if they never use the other args.
b) Tear down a test for 'stop' in the right order. Not important since we
have no EBP to restore. But can still be misleading.
c) Have 'check-ints-equal' return nothing. Handy for it to not mess up
EAX. I never use the result anyway, and the name also is imperative suggesting
callers won't expect a return value.
|
| | |
|
| | |
|
| |
|
|
| |
Making progress on hex1 (http://web.archive.org/web/20061108010907/http://www.rano.org/bcompiler.html)
|
| |
|
|
| |
New helper: print an error message, then a numeric byte, then abort.
|
| |
|
|
| |
New helper: printing a string to a buffered file.
|
| |
|
|
| |
Better to use EDI as a mnemonic for 'destination'.
|
| |
|
|
| |
Let's standardize to use opcode 39 rather than 3b by default.
|
| |
|
|
| |
Fix CI since 4827.
|
| | |
|
| |
|
|
|
|
| |
Let's start adding ':end' labels in all functions, just because it helps
us visualize where function calls end in traces, thanks to the '--map'
commandline argument.
|
| |
|
|
|
| |
This is likely a sub-optimal interface, but I'm trying not to agonize.
The whole point of Mu is to permit radical changes at any point in time.
|
| |
|
|
|
|
|
|
|
| |
I was 'returning' a phantom value from 'write' when the underlying '_write'
returns nothing.
In general, returning counts of bytes written is not so useful for error
checking when my primitives abstract away from that. We'll come back to
error signalling later.
|
| | |
|
| |
|
|
|
|
|
| |
Fix CI.
It's kind of a hassle (and wasteful) that I need to redefine 'main' in
every single layer.
|
| | |
|
| | |
|
| | |
|
| | |
|
| | |
|
| | |
|
| | |
|
| | |
|
| | |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Some automated commenting cleanup. Still needs more careful manual scanning.
sed -i 's/^# 1-3/# . 1-3/' *.subx */*.subx
sed -i 's/^# op/# . op/' *.subx */*.subx
sed -i 's/# vim/# . . vim/' *.subx */*.subx
sed -i 's/^ # push args/ # . . push args/' *.subx */*.subx
sed -i 's/^ # discard args/ # . . discard args/' *.subx */*.subx
sed -i 's/^ # call/ # . . call/' *.subx */*.subx
sed -i 's/^ # prolog/ # . prolog/' *.subx */*.subx
sed -i 's/^ # epilog/ # . epilog/' *.subx */*.subx
sed -i 's/^ # save registers/ # . save registers/' *.subx */*.subx
sed -i 's/^ # restore registers/ # . restore registers/' *.subx */*.subx
sed -i 's/ operand / register /' *.subx */*.subx
|
| |
|
|
| |
Reindent all SubX code to make some room for the new comment style.
|
| | |
|
| | |
|
| | |
|
| | |
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
Crenshaw compiler now runs natively as well.
It turns out I was misreading the Intel manual, and the jump instructions
that I thought take disp16 operands actually take disp32 operands by default
on both i686 and x86_64 processors. The disp16 versions are some holdover
from the 16-bit days.
This was the first time I've used one of these erstwhile-disp16 instructions,
but I still haven't tested most of them. We'll see if we run into future
issues.
|
| |
|
|
|
|
|
| |
Start with an exactly corresponding version to Crenshaw 2-1: single-digit
numbers. The only change: we assume the number is in hex.
The next version now supports multi-digit hex numbers.
|
| |
|
|
| |
Simplification.
|
| |
|
|
| |
In the process I had to fix a couple more bugs in support for disp16 instructions.
|
| | |
|
| | |
|
| | |
|
| | |
|
| | |
|
| |
|
|
|
| |
This time I've ported (and test-driven) 'GetChar' and 'GetNum'. The new
tests bring together our new testable interfaces for read() and exit().
|
| |
|
|
|
| |
Long-standing and long-copied typo has been messing with our exit status
on test failures.
|
| | |
|
| | |
|
| | |
|
| | |
|