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[Qemu-devel] condition code emulation in x86
From: |
Xin Tong |
Subject: |
[Qemu-devel] condition code emulation in x86 |
Date: |
Wed, 6 Jun 2012 10:52:01 -0400 |
I am looking at how arithemetic and logic operations are emulated in
x86. it came to my attention that only xor reg_a, reg_a updates the cc
value. what about other operations ? also there are a new cc value and
an old cc value ? why is that ?
Thanks
Xin
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