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Re: [avr-gcc-list] Odd prologue for ATmega256x in WinAVR20080407


From: Jeff Barlow
Subject: Re: [avr-gcc-list] Odd prologue for ATmega256x in WinAVR20080407
Date: Thu, 10 Apr 2008 08:10:02 -0700

Stu Bell <address@hidden>  wrote:

>What does the double "rcall ." do?

It just adjusts the stack pointer prior to loading it as the
local frame pointer. It's a fairly cute optimization actually.

-- 
Later,
Jeff




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