[PATCH 2/2] Ported ppc ashrdi3 from linux kernel

[Andre Naujoks]

---
 arch/ppc/lib/misc.S |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/arch/ppc/lib/misc.S b/arch/ppc/lib/misc.S
index 24f901f..bd06ff2 100644
--- a/arch/ppc/lib/misc.S
+++ b/arch/ppc/lib/misc.S
@@ -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
-- 
1.7.5.3