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barebox compilation with gcc 4.5.2 and ptxdist 

From 9b3985045da1161a934cba48749fe1759e62dae6 Mon Sep 17 00:00:00 2001
From: Andre Naujoks <nautsch2@googlemail.com>
Date: Wed, 27 Jul 2011 11:29:43 +0200
Subject: [PATCH 2/2] Ported ppc ashrdi3 from linux kernel

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Andre Naujoks 2011-07-27 11:51:57 +02:00 committed by Sascha Hauer
parent 0947b2edd5
commit 4cc463f942
1 changed files with 14 additions and 0 deletions
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14
arch/ppc/lib/misc.S
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@ -2,6 +2,20 @@
#include <asm/ppc_asm.tmpl>
#include <asm-generic/errno.h>
.globl __ashrdi3
__ashrdi3:
subfic r6,r5,32
srw r4,r4,r5 # LSW = count > 31 ? 0 : LSW >> count
addi r7,r5,32 # could be xori, or addi with -32
slw r6,r3,r6 # t1 = count > 31 ? 0 : MSW << (32-count)
rlwinm r8,r7,0,32 # t3 = (count < 32) ? 32 : 0
sraw r7,r3,r7 # t2 = MSW >> (count-32)
or r4,r4,r6 # LSW |= t1
slw r7,r7,r8 # t2 = (count < 32) ? 0 : t2
sraw r3,r3,r5 # MSW = MSW >> count
or r4,r4,r7 # LSW |= t2
blr
.globl __ashldi3
__ashldi3:
subfic r6,r5,32