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Re: Re: [Qemu-devel] mini documentation of "info registers" output
From: |
Mulyadi Santosa |
Subject: |
Re: Re: [Qemu-devel] mini documentation of "info registers" output |
Date: |
Sat, 2 Jul 2005 11:12:10 +0700 |
User-agent: |
KMail/1.5 |
Hello Paul...
> > CCD : Compiled Code Destination (?)
>
> Condition Code Source.
Or Condition Code Destination?
> These 3 are used to implement lazy flag evaluation. Most x86
> instructions set the condition code flags, but only a relatively
> small subset of instructions actually use these flags.
hm, i see....BTW, these two lazy flags, CCS and CCD, they are the
representation of EFLAGS? CMIIW. If yes, can I assume that they have
same format as EFLAGS?
anyway, it is safe to frequently ignore flags? For example, if MUL
generate overflow and set Zero Flag, Qemu must be aware of it, right?
Or we can still safely ignore it?
regards
Mulyadi