| Commit message (Collapse) | Author | Age | Files | Lines |
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Don't rely on platform sizes.
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Reconcile a few details with the mu-normie fork.
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It turns out floating-point operations set different flags than most instructions.
We have to branch on them using unsigned jumps.
https://stackoverflow.com/questions/7057501/x86-assembler-floating-point-compare/7057771#7057771
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Fix a couple of subtle bugs.
- the VM was conditionally reading from the instruction stream, so that
other bugs got masked by decoding errors.
- push-n-bytes was clobbering eax.
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It was possible for an instruction to write out of bounds of the memory
data structure. Most of the time this worked fine. However if the block
ever got resized and moved the out-of-bounds bytes no longer went along.
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