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-rw-r--r--arch/avr32/lib/__avr32_lsr64.S31
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/avr32/lib/__avr32_lsr64.S b/arch/avr32/lib/__avr32_lsr64.S
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--- /dev/null
+++ b/arch/avr32/lib/__avr32_lsr64.S
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+/*
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+ /*
+ * DWtype __avr32_lsr64(DWtype u, word_type b)
+ */
+ .text
+ .global __avr32_lsr64
+ .type __avr32_lsr64,@function
+__avr32_lsr64:
+ cp.w r12, 0
+ reteq r12
+
+ rsub r9, r12, 32
+ brle 1f
+
+ lsl r8, r11, r9
+ lsr r11, r11, r12
+ lsr r10, r10, r12
+ or r10, r8
+ retal r12
+
+1: neg r9
+ lsr r10, r11, r9
+ mov r11, 0
+ retal r12
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