obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 115 insertions, 0 deletions

diff --git a/libgcc/config/microblaze/moddi3.asm b/libgcc/config/microblaze/moddi3.asm
new file mode 100644
index 000000000..4923b45ff
--- /dev/null
+++ b/libgcc/config/microblaze/moddi3.asm
@@ -0,0 +1,115 @@
+###################################
+# 
+#  Copyright 2009, 2010 Free Software Foundation, Inc.
+#
+#  Contributed by Michael Eager <eager@eagercon.com>.
+#
+#  This file is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU General Public License as published by the
+#  Free Software Foundation; either version 3, or (at your option) any
+#  later version.
+#
+#  GCC is distributed in the hope that it will be useful, but WITHOUT
+#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+#  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+#  License for more details.
+#
+#  Under Section 7 of GPL version 3, you are granted additional
+#  permissions described in the GCC Runtime Library Exception, version
+#  3.1, as published by the Free Software Foundation.
+#
+#  You should have received a copy of the GNU General Public License and
+#  a copy of the GCC Runtime Library Exception along with this program;
+#  see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+#  <http://www.gnu.org/licenses/>. 
+#
+#  modsi3.asm 
+# 
+#  modulo operation for 64 bit integers.
+# 
+#######################################
+
+
+	.globl	__moddi3
+	.ent	__moddi3
+__moddi3:
+	.frame	r1,0,r15	
+
+#Change the stack pointer value and Save callee saved regs
+	addik	r1,r1,-24
+	swi	r25,r1,0
+	swi	r26,r1,4
+	swi	r27,r1,8	# used for sign
+	swi	r28,r1,12	# used for loop count
+	swi	r29,r1,16	# Used for div value High
+	swi	r30,r1,20	# Used for div value Low
+
+#Check for Zero Value in the divisor/dividend
+	OR	r9,r5,r6			# Check for the op1 being zero
+	BEQID	r9,$LaResult_Is_Zero		# Result is zero
+	OR	r9,r7,r8			# Check for the dividend being zero
+	BEQI	r9,$LaDiv_By_Zero	        # Div_by_Zero   # Division Error
+	BGEId	r5,$La1_Pos 
+	XOR	r27,r5,r7			# Get the sign of the result
+	RSUBI	r6,r6,0				# Make dividend positive
+	RSUBIC	r5,r5,0				# Make dividend positive
+$La1_Pos:
+	BGEI	r7,$La2_Pos
+	RSUBI	r8,r8,0				# Make Divisor Positive
+	RSUBIC	r9,r9,0				# Make Divisor Positive
+$La2_Pos:
+	ADDIK	r4,r0,0				# Clear mod low
+	ADDIK	r3,r0,0                	        # Clear mod high
+	ADDIK	r29,r0,0			# clear div high
+	ADDIK	r30,r0,0			# clear div low
+	ADDIK	r28,r0,64			# Initialize the loop count
+   # First part try to find the first '1' in the r5/r6
+$LaDIV1:
+	ADD	r6,r6,r6
+	ADDC	r5,r5,r5			# left shift logical r5
+	BGEID	r5,$LaDIV1			
+	ADDIK	r28,r28,-1
+$LaDIV2:
+	ADD	r6,r6,r6
+	ADDC	r5,r5,r5	# left shift logical r5/r6 get the '1' into the Carry
+	ADDC	r4,r4,r4	# Move that bit into the Mod register
+	ADDC	r3,r3,r3	# Move carry into high mod register
+	rsub	r18,r7,r3	# Compare the High Parts of Mod and Divisor
+	bnei	r18,$L_High_EQ
+	rsub	r18,r6,r4	# Compare Low Parts only if Mod[h] == Divisor[h]
+$L_High_EQ:	
+	rSUB	r26,r8,r4	# Subtract divisor[L] from Mod[L]
+	rsubc	r25,r7,r3	# Subtract divisor[H] from Mod[H]
+	BLTi	r25,$LaMOD_TOO_SMALL
+	OR	r3,r0,r25	# move r25 to mod [h]
+	OR	r4,r0,r26	# move r26 to mod [l]
+	ADDI	r30,r30,1
+	ADDC	r29,r29,r0
+$LaMOD_TOO_SMALL:
+	ADDIK	r28,r28,-1
+	BEQi	r28,$LaLOOP_END
+	ADD	r30,r30,r30		# Shift in the '1' into div [low]
+	ADDC	r29,r29,r29		# Move the carry generated into high
+	BRI	$LaDIV2   # Div2
+$LaLOOP_END:
+	BGEI	r27,$LaRETURN_HERE
+	rsubi	r30,r30,0
+	rsubc	r29,r29,r0
+	BRI	$LaRETURN_HERE
+$LaDiv_By_Zero:
+$LaResult_Is_Zero:
+	or	r29,r0,r0	# set result to 0 [High]
+	or	r30,r0,r0	# set result to 0 [Low]
+$LaRETURN_HERE:
+# Restore values of CSRs and that of r29 and the divisor and the dividend
+	
+	lwi	r25,r1,0
+	lwi	r26,r1,4
+	lwi	r27,r1,8
+	lwi	r28,r1,12
+	lwi	r29,r1,16
+	lwi	r30,r1,20
+	rtsd	r15,8
+	addik r1,r1,24
+        .end __moddi3
+