Re: [Sbcl-commits] master: x86-64: Improve break instruction change a little more

Douglas Katzman via Sbcl-devel <[email protected]> Tue, 11 Nov 2025 11:57:43 -0500

Newsgroups	gmane.lisp.steel-bank.devel
Message-ID	<CAOrNaszQxyjacRn2+UY0gQ9FmJgo-wnGGSNh4zZWVWTq6ES88w@mail.gmail.com>

yes that was my thought exactly. But there's something else we can do: use
UD1 instructions which give you 4 bytes at a time of arbitrary data in the
"displacement" field. More than 1 instruction in a row, if you have to

On Tue, Nov 11, 2025 at 11:53 AM Stas Boukarev <[email protected]> wrote:

> Break arguments could be moved to the debug fun. But it will make
> decoding internal errors in C harder.
>
>

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