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[Bug 1001275] New: Cortex-M (armV7) architecture endian instructions / lwIP
- From: bugzilla-daemon at bugs dot ecos dot sourceware dot org
- To: ecos-patches at ecos dot sourceware dot org
- Date: Sun, 3 Jul 2011 18:46:37 +0100
- Subject: [Bug 1001275] New: Cortex-M (armV7) architecture endian instructions / lwIP
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Summary: Cortex-M (armV7) architecture endian instructions /
lwIP
Product: eCos
Version: CVS
Platform: All
OS/Version: Cortex-M
Status: UNCONFIRMED
Severity: enhancement
Priority: low
Component: Patches and contributions
AssignedTo: unassigned@bugs.ecos.sourceware.org
ReportedBy: ilijak@siva.com.mk
CC: ecos-patches@ecos.sourceware.org
Class: Advice Request
Created an attachment (id=1299)
--> (http://bugs.ecos.sourceware.org/attachment.cgi?id=1299)
Cortex-M endian instructions
This patch contains C function wrappers for Cortex-M byte swapping
instructions. A new file hal_arch_instr.inl is proposed as a place to
accommodate specific architecture instructions such as presented rev rev16 and
revsh. Other instructions may be added in future.
Note: Incentive for this patch was speeding-up of endian operations such as
htonl() and htons(). A patch for lwIP htonl()/htons() is submitted in comment
#1.
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