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src/sim arm/ChangeLog arm/armemu.c testsuite/s ...


CVSROOT:	/cvs/src
Module name:	src
Changes by:	vapier@sourceware.org	2013-05-15 17:49:44

Modified files:
	sim/arm        : ChangeLog armemu.c 
	sim/testsuite/sim/arm: ChangeLog 
Added files:
	sim/testsuite/sim/arm: movw-movt.ms 

Log message:
	sim: arm: add support for MOVW and MOVT instructions
	
	From: Jayant R. Sonar <Jayant.Sonar@kpitcummins.com>
	
	This patch adds simulator support for handling the armv7 instructions
	'movw (immediate)' and 'movt'.
	
	Compiler frequently use these instructions to load the 32bit addresses of
	global variables, string pointers etc. into the general registers.
	
	In absence of support of these instructions:
	1. GDB run simulator fails to print even simple "hello world" string
	on console.
	2. Loading of global variable addresses into the registers fail causing
	arithmetic operation failures.
	
	Patch has been regression tested for arm-none-eabi (-march=armv7-a).

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/sim/arm/ChangeLog.diff?cvsroot=src&r1=1.120&r2=1.121
http://sourceware.org/cgi-bin/cvsweb.cgi/src/sim/arm/armemu.c.diff?cvsroot=src&r1=1.37&r2=1.38
http://sourceware.org/cgi-bin/cvsweb.cgi/src/sim/testsuite/sim/arm/movw-movt.ms.diff?cvsroot=src&r1=NONE&r2=1.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/sim/testsuite/sim/arm/ChangeLog.diff?cvsroot=src&r1=1.1&r2=1.2


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