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###################################-*-asm*- 
# 
#  Copyright 2009, 2010, 2011 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/>. 
# 
#  mulsi3.S
# 
#  Multiply operation for 32 bit integers.
#       Input : Operand1 in Reg r5
#               Operand2 in Reg r6
#       Output: Result [op1 * op2] in Reg r3
# 
#######################################

        .globl  __mulsi3
        .ent    __mulsi3
        .type   __mulsi3,@function
__mulsi3:
        .frame  r1,0,r15
        add     r3,r0,r0
        BEQI    r5,$L_Result_Is_Zero      # Multiply by Zero
        BEQI    r6,$L_Result_Is_Zero      # Multiply by Zero
        BGEId   r5,$L_R5_Pos 
        XOR     r4,r5,r6                  # Get the sign of the result
        RSUBI   r5,r5,0                   # Make r5 positive
$L_R5_Pos:
        BGEI    r6,$L_R6_Pos
        RSUBI   r6,r6,0                   # Make r6 positive
$L_R6_Pos:      
        bri     $L1
$L2:    
        add     r5,r5,r5
$L1:    
        srl     r6,r6
        addc    r7,r0,r0
        beqi    r7,$L2
        bneid   r6,$L2
        add     r3,r3,r5        
        blti    r4,$L_NegateResult                      
        rtsd    r15,8
        nop
$L_NegateResult:
        rtsd    r15,8
        rsub    r3,r3,r0
$L_Result_Is_Zero:
        rtsd    r15,8
        addi    r3,r0,0
        .end __mulsi3
        .size   __mulsi3, . - __mulsi3