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[Bug target/52506] New: [avr]: XMEGA: Wrong order of save/restore of RAMPX/Y/Z/D SFRs in ISR pro-/epilogue
- From: "gjl at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 06 Mar 2012 11:30:38 +0000
- Subject: [Bug target/52506] New: [avr]: XMEGA: Wrong order of save/restore of RAMPX/Y/Z/D SFRs in ISR pro-/epilogue
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52506
Bug #: 52506
Summary: [avr]: XMEGA: Wrong order of save/restore of
RAMPX/Y/Z/D SFRs in ISR pro-/epilogue
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: gjl@gcc.gnu.org
For XMEGA devices with more than 64 KiB of RAM, the RAMPX, RAMPY, RAMPZ, RAMPD
special function registers are saved/restored in ISR if they might be used or
have an effect on the ISR code's memory accesses.
These save/restores are in the wrong order.