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From: | Fabrice Bellard |
Subject: | Re: [Qemu-devel] performance of qemu |
Date: | Wed, 04 Jun 2003 18:01:25 +0200 |
User-agent: | Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1) Gecko/20020828 |
Johan Rydberg wrote:
: > When is the full eflags register generated? In the epilogue of a translated : > block, or when ever an insn/callback reads the eflag register?: : Only when an instruction really needs the full eflags register (such as : pushf).And at the end of the translated block? Or does the CC_SRC, CC_DST and CC_OP live between blocks?
CC_SRC, CC_DST and CC_OP live between blocks (I think computing the eflags would be too expensive).
Fabrice.
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