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+/* MIPS3 __mpn_lshift --
+ *
+ * Copyright (C) 1995-2014 Free Software Foundation, Inc.
+ *
+ * This file is part of the GNU MP Library.
+ *
+ * The GNU MP Library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ *
+ * The GNU MP Library 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the GNU MP Library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+#include <sysdep.h>
+#include <sys/asm.h>
+
+/* INPUT PARAMETERS
+ * res_ptr $4
+ * src_ptr $5
+ * size $6
+ * cnt $7
+ */
+
+#ifdef __PIC__
+ .option pic2
+#endif
+ENTRY (__mpn_lshift)
+#ifdef __PIC__
+ SETUP_GP /* ??? unused */
+#endif
+ .set noreorder
+ .set nomacro
+
+ dsll $2,$6,3
+ daddu $5,$5,$2 # make r5 point at end of src
+ ld $10,-8($5) # load first limb
+ dsubu $13,$0,$7
+ daddu $4,$4,$2 # make r4 point at end of res
+ daddiu $6,$6,-1
+ and $9,$6,4-1 # number of limbs in first loop
+ beq $9,$0,L(L0) # if multiple of 4 limbs, skip first loop
+ dsrl $2,$10,$13 # compute function result
+
+ dsubu $6,$6,$9
+
+L(Loop0): ld $3,-16($5)
+ daddiu $4,$4,-8
+ daddiu $5,$5,-8
+ daddiu $9,$9,-1
+ dsll $11,$10,$7
+ dsrl $12,$3,$13
+ move $10,$3
+ or $8,$11,$12
+ bne $9,$0,L(Loop0)
+ sd $8,0($4)
+
+L(L0): beq $6,$0,L(Lend)
+ nop
+
+L(Loop): ld $3,-16($5)
+ daddiu $4,$4,-32
+ daddiu $6,$6,-4
+ dsll $11,$10,$7
+ dsrl $12,$3,$13
+
+ ld $10,-24($5)
+ dsll $14,$3,$7
+ or $8,$11,$12
+ sd $8,24($4)
+ dsrl $9,$10,$13
+
+ ld $3,-32($5)
+ dsll $11,$10,$7
+ or $8,$14,$9
+ sd $8,16($4)
+ dsrl $12,$3,$13
+
+ ld $10,-40($5)
+ dsll $14,$3,$7
+ or $8,$11,$12
+ sd $8,8($4)
+ dsrl $9,$10,$13
+
+ daddiu $5,$5,-32
+ or $8,$14,$9
+ bgtz $6,L(Loop)
+ sd $8,0($4)
+
+L(Lend): dsll $8,$10,$7
+ j $31
+ sd $8,-8($4)
+END (__mpn_lshift)