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-rw-r--r--rts/gmp/mpn/mips2/add_n.s120
-rw-r--r--rts/gmp/mpn/mips2/addmul_1.s97
-rw-r--r--rts/gmp/mpn/mips2/lshift.s95
-rw-r--r--rts/gmp/mpn/mips2/mul_1.s85
-rw-r--r--rts/gmp/mpn/mips2/rshift.s92
-rw-r--r--rts/gmp/mpn/mips2/sub_n.s120
-rw-r--r--rts/gmp/mpn/mips2/submul_1.s97
-rw-r--r--rts/gmp/mpn/mips2/umul.s30
8 files changed, 736 insertions, 0 deletions
diff --git a/rts/gmp/mpn/mips2/add_n.s b/rts/gmp/mpn/mips2/add_n.s
new file mode 100644
index 0000000000..5c3c7fc8a1
--- /dev/null
+++ b/rts/gmp/mpn/mips2/add_n.s
@@ -0,0 +1,120 @@
+ # MIPS2 __gmpn_add_n -- Add two limb vectors of the same length > 0 and
+ # store sum in a third limb vector.
+
+ # Copyright (C) 1995, 2000 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; see the file COPYING.LIB. If not, write to
+ # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ # MA 02111-1307, USA.
+
+
+ # INPUT PARAMETERS
+ # res_ptr $4
+ # s1_ptr $5
+ # s2_ptr $6
+ # size $7
+
+ .text
+ .align 2
+ .globl __gmpn_add_n
+ .ent __gmpn_add_n
+__gmpn_add_n:
+ .set noreorder
+ .set nomacro
+
+ lw $10,0($5)
+ lw $11,0($6)
+
+ addiu $7,$7,-1
+ and $9,$7,4-1 # number of limbs in first loop
+ beq $9,$0,.L0 # if multiple of 4 limbs, skip first loop
+ move $2,$0
+
+ subu $7,$7,$9
+
+.Loop0: addiu $9,$9,-1
+ lw $12,4($5)
+ addu $11,$11,$2
+ lw $13,4($6)
+ sltu $8,$11,$2
+ addu $11,$10,$11
+ sltu $2,$11,$10
+ sw $11,0($4)
+ or $2,$2,$8
+
+ addiu $5,$5,4
+ addiu $6,$6,4
+ move $10,$12
+ move $11,$13
+ bne $9,$0,.Loop0
+ addiu $4,$4,4
+
+.L0: beq $7,$0,.Lend
+ nop
+
+.Loop: addiu $7,$7,-4
+
+ lw $12,4($5)
+ addu $11,$11,$2
+ lw $13,4($6)
+ sltu $8,$11,$2
+ addu $11,$10,$11
+ sltu $2,$11,$10
+ sw $11,0($4)
+ or $2,$2,$8
+
+ lw $10,8($5)
+ addu $13,$13,$2
+ lw $11,8($6)
+ sltu $8,$13,$2
+ addu $13,$12,$13
+ sltu $2,$13,$12
+ sw $13,4($4)
+ or $2,$2,$8
+
+ lw $12,12($5)
+ addu $11,$11,$2
+ lw $13,12($6)
+ sltu $8,$11,$2
+ addu $11,$10,$11
+ sltu $2,$11,$10
+ sw $11,8($4)
+ or $2,$2,$8
+
+ lw $10,16($5)
+ addu $13,$13,$2
+ lw $11,16($6)
+ sltu $8,$13,$2
+ addu $13,$12,$13
+ sltu $2,$13,$12
+ sw $13,12($4)
+ or $2,$2,$8
+
+ addiu $5,$5,16
+ addiu $6,$6,16
+
+ bne $7,$0,.Loop
+ addiu $4,$4,16
+
+.Lend: addu $11,$11,$2
+ sltu $8,$11,$2
+ addu $11,$10,$11
+ sltu $2,$11,$10
+ sw $11,0($4)
+ j $31
+ or $2,$2,$8
+
+ .end __gmpn_add_n
diff --git a/rts/gmp/mpn/mips2/addmul_1.s b/rts/gmp/mpn/mips2/addmul_1.s
new file mode 100644
index 0000000000..1e5037751b
--- /dev/null
+++ b/rts/gmp/mpn/mips2/addmul_1.s
@@ -0,0 +1,97 @@
+ # MIPS __gmpn_addmul_1 -- Multiply a limb vector with a single limb and
+ # add the product to a second limb vector.
+
+ # Copyright (C) 1992, 1994, 1996, 2000 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; see the file COPYING.LIB. If not, write to
+ # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ # MA 02111-1307, USA.
+
+
+ # INPUT PARAMETERS
+ # res_ptr $4
+ # s1_ptr $5
+ # size $6
+ # s2_limb $7
+
+ .text
+ .align 4
+ .globl __gmpn_addmul_1
+ .ent __gmpn_addmul_1
+__gmpn_addmul_1:
+ .set noreorder
+ .set nomacro
+
+ # warm up phase 0
+ lw $8,0($5)
+
+ # warm up phase 1
+ addiu $5,$5,4
+ multu $8,$7
+
+ addiu $6,$6,-1
+ beq $6,$0,$LC0
+ move $2,$0 # zero cy2
+
+ addiu $6,$6,-1
+ beq $6,$0,$LC1
+ lw $8,0($5) # load new s1 limb as early as possible
+
+Loop: lw $10,0($4)
+ mflo $3
+ mfhi $9
+ addiu $5,$5,4
+ addu $3,$3,$2 # add old carry limb to low product limb
+ multu $8,$7
+ lw $8,0($5) # load new s1 limb as early as possible
+ addiu $6,$6,-1 # decrement loop counter
+ sltu $2,$3,$2 # carry from previous addition -> $2
+ addu $3,$10,$3
+ sltu $10,$3,$10
+ addu $2,$2,$10
+ sw $3,0($4)
+ addiu $4,$4,4
+ bne $6,$0,Loop
+ addu $2,$9,$2 # add high product limb and carry from addition
+
+ # cool down phase 1
+$LC1: lw $10,0($4)
+ mflo $3
+ mfhi $9
+ addu $3,$3,$2
+ sltu $2,$3,$2
+ multu $8,$7
+ addu $3,$10,$3
+ sltu $10,$3,$10
+ addu $2,$2,$10
+ sw $3,0($4)
+ addiu $4,$4,4
+ addu $2,$9,$2 # add high product limb and carry from addition
+
+ # cool down phase 0
+$LC0: lw $10,0($4)
+ mflo $3
+ mfhi $9
+ addu $3,$3,$2
+ sltu $2,$3,$2
+ addu $3,$10,$3
+ sltu $10,$3,$10
+ addu $2,$2,$10
+ sw $3,0($4)
+ j $31
+ addu $2,$9,$2 # add high product limb and carry from addition
+
+ .end __gmpn_addmul_1
diff --git a/rts/gmp/mpn/mips2/lshift.s b/rts/gmp/mpn/mips2/lshift.s
new file mode 100644
index 0000000000..2ca3a3c800
--- /dev/null
+++ b/rts/gmp/mpn/mips2/lshift.s
@@ -0,0 +1,95 @@
+ # MIPS2 __gmpn_lshift --
+
+ # Copyright (C) 1995, 2000 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; see the file COPYING.LIB. If not, write to
+ # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ # MA 02111-1307, USA.
+
+
+ # INPUT PARAMETERS
+ # res_ptr $4
+ # src_ptr $5
+ # size $6
+ # cnt $7
+
+ .text
+ .align 2
+ .globl __gmpn_lshift
+ .ent __gmpn_lshift
+__gmpn_lshift:
+ .set noreorder
+ .set nomacro
+
+ sll $2,$6,2
+ addu $5,$5,$2 # make r5 point at end of src
+ lw $10,-4($5) # load first limb
+ subu $13,$0,$7
+ addu $4,$4,$2 # make r4 point at end of res
+ addiu $6,$6,-1
+ and $9,$6,4-1 # number of limbs in first loop
+ beq $9,$0,.L0 # if multiple of 4 limbs, skip first loop
+ srl $2,$10,$13 # compute function result
+
+ subu $6,$6,$9
+
+.Loop0: lw $3,-8($5)
+ addiu $4,$4,-4
+ addiu $5,$5,-4
+ addiu $9,$9,-1
+ sll $11,$10,$7
+ srl $12,$3,$13
+ move $10,$3
+ or $8,$11,$12
+ bne $9,$0,.Loop0
+ sw $8,0($4)
+
+.L0: beq $6,$0,.Lend
+ nop
+
+.Loop: lw $3,-8($5)
+ addiu $4,$4,-16
+ addiu $6,$6,-4
+ sll $11,$10,$7
+ srl $12,$3,$13
+
+ lw $10,-12($5)
+ sll $14,$3,$7
+ or $8,$11,$12
+ sw $8,12($4)
+ srl $9,$10,$13
+
+ lw $3,-16($5)
+ sll $11,$10,$7
+ or $8,$14,$9
+ sw $8,8($4)
+ srl $12,$3,$13
+
+ lw $10,-20($5)
+ sll $14,$3,$7
+ or $8,$11,$12
+ sw $8,4($4)
+ srl $9,$10,$13
+
+ addiu $5,$5,-16
+ or $8,$14,$9
+ bgtz $6,.Loop
+ sw $8,0($4)
+
+.Lend: sll $8,$10,$7
+ j $31
+ sw $8,-4($4)
+ .end __gmpn_lshift
diff --git a/rts/gmp/mpn/mips2/mul_1.s b/rts/gmp/mpn/mips2/mul_1.s
new file mode 100644
index 0000000000..ea8aa26809
--- /dev/null
+++ b/rts/gmp/mpn/mips2/mul_1.s
@@ -0,0 +1,85 @@
+ # MIPS __gmpn_mul_1 -- Multiply a limb vector with a single limb and
+ # store the product in a second limb vector.
+
+ # Copyright (C) 1992, 1994, 1996, 2000 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; see the file COPYING.LIB. If not, write to
+ # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ # MA 02111-1307, USA.
+
+
+ # INPUT PARAMETERS
+ # res_ptr $4
+ # s1_ptr $5
+ # size $6
+ # s2_limb $7
+
+ .text
+ .align 4
+ .globl __gmpn_mul_1
+ .ent __gmpn_mul_1
+__gmpn_mul_1:
+ .set noreorder
+ .set nomacro
+
+ # warm up phase 0
+ lw $8,0($5)
+
+ # warm up phase 1
+ addiu $5,$5,4
+ multu $8,$7
+
+ addiu $6,$6,-1
+ beq $6,$0,$LC0
+ move $2,$0 # zero cy2
+
+ addiu $6,$6,-1
+ beq $6,$0,$LC1
+ lw $8,0($5) # load new s1 limb as early as possible
+
+Loop: mflo $10
+ mfhi $9
+ addiu $5,$5,4
+ addu $10,$10,$2 # add old carry limb to low product limb
+ multu $8,$7
+ lw $8,0($5) # load new s1 limb as early as possible
+ addiu $6,$6,-1 # decrement loop counter
+ sltu $2,$10,$2 # carry from previous addition -> $2
+ sw $10,0($4)
+ addiu $4,$4,4
+ bne $6,$0,Loop
+ addu $2,$9,$2 # add high product limb and carry from addition
+
+ # cool down phase 1
+$LC1: mflo $10
+ mfhi $9
+ addu $10,$10,$2
+ sltu $2,$10,$2
+ multu $8,$7
+ sw $10,0($4)
+ addiu $4,$4,4
+ addu $2,$9,$2 # add high product limb and carry from addition
+
+ # cool down phase 0
+$LC0: mflo $10
+ mfhi $9
+ addu $10,$10,$2
+ sltu $2,$10,$2
+ sw $10,0($4)
+ j $31
+ addu $2,$9,$2 # add high product limb and carry from addition
+
+ .end __gmpn_mul_1
diff --git a/rts/gmp/mpn/mips2/rshift.s b/rts/gmp/mpn/mips2/rshift.s
new file mode 100644
index 0000000000..37c8f39cb4
--- /dev/null
+++ b/rts/gmp/mpn/mips2/rshift.s
@@ -0,0 +1,92 @@
+ # MIPS2 __gmpn_rshift --
+
+ # Copyright (C) 1995, 2000 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; see the file COPYING.LIB. If not, write to
+ # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ # MA 02111-1307, USA.
+
+
+ # INPUT PARAMETERS
+ # res_ptr $4
+ # src_ptr $5
+ # size $6
+ # cnt $7
+
+ .text
+ .align 2
+ .globl __gmpn_rshift
+ .ent __gmpn_rshift
+__gmpn_rshift:
+ .set noreorder
+ .set nomacro
+
+ lw $10,0($5) # load first limb
+ subu $13,$0,$7
+ addiu $6,$6,-1
+ and $9,$6,4-1 # number of limbs in first loop
+ beq $9,$0,.L0 # if multiple of 4 limbs, skip first loop
+ sll $2,$10,$13 # compute function result
+
+ subu $6,$6,$9
+
+.Loop0: lw $3,4($5)
+ addiu $4,$4,4
+ addiu $5,$5,4
+ addiu $9,$9,-1
+ srl $11,$10,$7
+ sll $12,$3,$13
+ move $10,$3
+ or $8,$11,$12
+ bne $9,$0,.Loop0
+ sw $8,-4($4)
+
+.L0: beq $6,$0,.Lend
+ nop
+
+.Loop: lw $3,4($5)
+ addiu $4,$4,16
+ addiu $6,$6,-4
+ srl $11,$10,$7
+ sll $12,$3,$13
+
+ lw $10,8($5)
+ srl $14,$3,$7
+ or $8,$11,$12
+ sw $8,-16($4)
+ sll $9,$10,$13
+
+ lw $3,12($5)
+ srl $11,$10,$7
+ or $8,$14,$9
+ sw $8,-12($4)
+ sll $12,$3,$13
+
+ lw $10,16($5)
+ srl $14,$3,$7
+ or $8,$11,$12
+ sw $8,-8($4)
+ sll $9,$10,$13
+
+ addiu $5,$5,16
+ or $8,$14,$9
+ bgtz $6,.Loop
+ sw $8,-4($4)
+
+.Lend: srl $8,$10,$7
+ j $31
+ sw $8,0($4)
+ .end __gmpn_rshift
diff --git a/rts/gmp/mpn/mips2/sub_n.s b/rts/gmp/mpn/mips2/sub_n.s
new file mode 100644
index 0000000000..51d34f3ac3
--- /dev/null
+++ b/rts/gmp/mpn/mips2/sub_n.s
@@ -0,0 +1,120 @@
+ # MIPS2 __gmpn_sub_n -- Subtract two limb vectors of the same length > 0 and
+ # store difference in a third limb vector.
+
+ # Copyright (C) 1995, 2000 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; see the file COPYING.LIB. If not, write to
+ # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ # MA 02111-1307, USA.
+
+
+ # INPUT PARAMETERS
+ # res_ptr $4
+ # s1_ptr $5
+ # s2_ptr $6
+ # size $7
+
+ .text
+ .align 2
+ .globl __gmpn_sub_n
+ .ent __gmpn_sub_n
+__gmpn_sub_n:
+ .set noreorder
+ .set nomacro
+
+ lw $10,0($5)
+ lw $11,0($6)
+
+ addiu $7,$7,-1
+ and $9,$7,4-1 # number of limbs in first loop
+ beq $9,$0,.L0 # if multiple of 4 limbs, skip first loop
+ move $2,$0
+
+ subu $7,$7,$9
+
+.Loop0: addiu $9,$9,-1
+ lw $12,4($5)
+ addu $11,$11,$2
+ lw $13,4($6)
+ sltu $8,$11,$2
+ subu $11,$10,$11
+ sltu $2,$10,$11
+ sw $11,0($4)
+ or $2,$2,$8
+
+ addiu $5,$5,4
+ addiu $6,$6,4
+ move $10,$12
+ move $11,$13
+ bne $9,$0,.Loop0
+ addiu $4,$4,4
+
+.L0: beq $7,$0,.Lend
+ nop
+
+.Loop: addiu $7,$7,-4
+
+ lw $12,4($5)
+ addu $11,$11,$2
+ lw $13,4($6)
+ sltu $8,$11,$2
+ subu $11,$10,$11
+ sltu $2,$10,$11
+ sw $11,0($4)
+ or $2,$2,$8
+
+ lw $10,8($5)
+ addu $13,$13,$2
+ lw $11,8($6)
+ sltu $8,$13,$2
+ subu $13,$12,$13
+ sltu $2,$12,$13
+ sw $13,4($4)
+ or $2,$2,$8
+
+ lw $12,12($5)
+ addu $11,$11,$2
+ lw $13,12($6)
+ sltu $8,$11,$2
+ subu $11,$10,$11
+ sltu $2,$10,$11
+ sw $11,8($4)
+ or $2,$2,$8
+
+ lw $10,16($5)
+ addu $13,$13,$2
+ lw $11,16($6)
+ sltu $8,$13,$2
+ subu $13,$12,$13
+ sltu $2,$12,$13
+ sw $13,12($4)
+ or $2,$2,$8
+
+ addiu $5,$5,16
+ addiu $6,$6,16
+
+ bne $7,$0,.Loop
+ addiu $4,$4,16
+
+.Lend: addu $11,$11,$2
+ sltu $8,$11,$2
+ subu $11,$10,$11
+ sltu $2,$10,$11
+ sw $11,0($4)
+ j $31
+ or $2,$2,$8
+
+ .end __gmpn_sub_n
diff --git a/rts/gmp/mpn/mips2/submul_1.s b/rts/gmp/mpn/mips2/submul_1.s
new file mode 100644
index 0000000000..495dea3ba2
--- /dev/null
+++ b/rts/gmp/mpn/mips2/submul_1.s
@@ -0,0 +1,97 @@
+ # MIPS __gmpn_submul_1 -- Multiply a limb vector with a single limb and
+ # subtract the product from a second limb vector.
+
+ # Copyright (C) 1992, 1994, 1996, 2000 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; see the file COPYING.LIB. If not, write to
+ # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ # MA 02111-1307, USA.
+
+
+ # INPUT PARAMETERS
+ # res_ptr $4
+ # s1_ptr $5
+ # size $6
+ # s2_limb $7
+
+ .text
+ .align 4
+ .globl __gmpn_submul_1
+ .ent __gmpn_submul_1
+__gmpn_submul_1:
+ .set noreorder
+ .set nomacro
+
+ # warm up phase 0
+ lw $8,0($5)
+
+ # warm up phase 1
+ addiu $5,$5,4
+ multu $8,$7
+
+ addiu $6,$6,-1
+ beq $6,$0,$LC0
+ move $2,$0 # zero cy2
+
+ addiu $6,$6,-1
+ beq $6,$0,$LC1
+ lw $8,0($5) # load new s1 limb as early as possible
+
+Loop: lw $10,0($4)
+ mflo $3
+ mfhi $9
+ addiu $5,$5,4
+ addu $3,$3,$2 # add old carry limb to low product limb
+ multu $8,$7
+ lw $8,0($5) # load new s1 limb as early as possible
+ addiu $6,$6,-1 # decrement loop counter
+ sltu $2,$3,$2 # carry from previous addition -> $2
+ subu $3,$10,$3
+ sgtu $10,$3,$10
+ addu $2,$2,$10
+ sw $3,0($4)
+ addiu $4,$4,4
+ bne $6,$0,Loop
+ addu $2,$9,$2 # add high product limb and carry from addition
+
+ # cool down phase 1
+$LC1: lw $10,0($4)
+ mflo $3
+ mfhi $9
+ addu $3,$3,$2
+ sltu $2,$3,$2
+ multu $8,$7
+ subu $3,$10,$3
+ sgtu $10,$3,$10
+ addu $2,$2,$10
+ sw $3,0($4)
+ addiu $4,$4,4
+ addu $2,$9,$2 # add high product limb and carry from addition
+
+ # cool down phase 0
+$LC0: lw $10,0($4)
+ mflo $3
+ mfhi $9
+ addu $3,$3,$2
+ sltu $2,$3,$2
+ subu $3,$10,$3
+ sgtu $10,$3,$10
+ addu $2,$2,$10
+ sw $3,0($4)
+ j $31
+ addu $2,$9,$2 # add high product limb and carry from addition
+
+ .end __gmpn_submul_1
diff --git a/rts/gmp/mpn/mips2/umul.s b/rts/gmp/mpn/mips2/umul.s
new file mode 100644
index 0000000000..40e847614c
--- /dev/null
+++ b/rts/gmp/mpn/mips2/umul.s
@@ -0,0 +1,30 @@
+ # Copyright (C) 1999 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; see the file COPYING.LIB. If not, write to
+ # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ # MA 02111-1307, USA.
+
+ .text
+ .align 2
+ .globl __umul_ppmm
+ .ent __umul_ppmm
+__umul_ppmm:
+ multu $5,$6
+ mflo $3
+ mfhi $2
+ sw $3,0($4)
+ j $31
+ .end __umul_ppmm