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[avr-gcc-list] Odd prologue for ATmega256x in WinAVR20080407
From: |
Stu Bell |
Subject: |
[avr-gcc-list] Odd prologue for ATmega256x in WinAVR20080407 |
Date: |
Thu, 10 Apr 2008 08:52:46 -0600 |
Hi all,
I've noticed an odd prologue being generated in WinAVR 20080407. This
is for an ATmega2560 and is with optimization set at -O0:
vTaskPlaceOnEventList:
.LFB22:
.LM242:
DF93 push r29
CF93 push r28
00D0 rcall .
00D0 rcall .
CDB7 in r28,__SP_L__
DEB7 in r29,__SP_H__
/* prologue: function */
/* frame size = 6 */
What does the double "rcall ." do? It seems to work, sorta, but it's
weird. The generated epilogue seems to match the old (WinAVR20071221)
version.
Best regards,
Stu Bell
DPHI, Inc. (DataPlay)
- [avr-gcc-list] Odd prologue for ATmega256x in WinAVR20080407,
Stu Bell <=