PowerPC 64 bits: alternate, more efficient implementations of int64 operations.

12 files changed, 677 insertions, 0 deletions

diff --git a/runtime/powerpc/ppc64/i64_dtos.s b/runtime/powerpc/ppc64/i64_dtos.s
new file mode 100644
index 00000000..95f7f700
--- /dev/null
+++ b/runtime/powerpc/ppc64/i64_dtos.s
@@ -0,0 +1,52 @@
+# *****************************************************************
+#
+#               The Compcert verified compiler
+#
+#           Xavier Leroy, INRIA Paris-Rocquencourt
+#
+# Copyright (c) 2013 Institut National de Recherche en Informatique et
+#  en Automatique.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the <organization> nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT
+# HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# *********************************************************************
+
+# Helper functions for 64-bit integer arithmetic.  PowerPC 64 version.
+
+        .text
+
+### Conversion from double float to signed long	
+
+        .balign 16
+        .globl __i64_dtos
+__i64_dtos:
+	fctidz f1, f1
+        stfdu f1, -16(r1)
+        lwz r3, 0(r1)
+        lwz r4, 4(r1)
+        addi r1, r1, 16
+        blr
+        .type __i64_dtos, @function
+        .size __i64_dtos, .-__i64_dtos
+        
\ No newline at end of file
diff --git a/runtime/powerpc/ppc64/i64_dtou.s b/runtime/powerpc/ppc64/i64_dtou.s
new file mode 100644
index 00000000..665037ea
--- /dev/null
+++ b/runtime/powerpc/ppc64/i64_dtou.s
@@ -0,0 +1,66 @@
+# *****************************************************************
+#
+#               The Compcert verified compiler
+#
+#           Xavier Leroy, INRIA Paris-Rocquencourt
+#
+# Copyright (c) 2013 Institut National de Recherche en Informatique et
+#  en Automatique.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the <organization> nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT
+# HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# *********************************************************************
+
+# Helper functions for 64-bit integer arithmetic.  PowerPC 64 version.
+
+        .text
+
+### Conversion from double float to unsigned long	
+
+        .balign 16
+        .globl __i64_dtou
+__i64_dtou:
+        lis r0, 0x5f00          # 0x5f00_0000 = 2^63 in binary32 format
+        stwu r0, -16(r1)
+        lfs f2, 0(r1)           # f2 = 2^63
+        fcmpu f1, f2            # crbit 0 is f1 < f2
+        bf 0, 1f                # branch if f1 >= 2^63 (or f1 is NaN)
+	fctidz f1, f1           # convert as signed
+        stfd f1, 0(r1)
+        lwz r3, 0(r1)
+        lwz r4, 4(r1)
+        addi r1, r1, 16
+        blr
+1:      fsub f1, f1, f2         # shift argument down by 2^63
+	fctidz f1, f1           # convert as signed
+        stfd f1, 0(r1)
+        lwz r3, 0(r1)
+        lwz r4, 4(r1)
+        addis r3, r3, 0x8000    # shift result up by 2^63
+        addi r1, r1, 16
+        blr
+        .type __i64_dtou, @function
+        .size __i64_dtou, .-__i64_dtou
+
+        
\ No newline at end of file
diff --git a/runtime/powerpc/ppc64/i64_sar.s b/runtime/powerpc/ppc64/i64_sar.s
new file mode 100644
index 00000000..4fc4451e
--- /dev/null
+++ b/runtime/powerpc/ppc64/i64_sar.s
@@ -0,0 +1,51 @@
+# *****************************************************************
+#
+#               The Compcert verified compiler
+#
+#           Xavier Leroy, INRIA Paris-Rocquencourt
+#
+# Copyright (c) 2013 Institut National de Recherche en Informatique et
+#  en Automatique.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the <organization> nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT
+# HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# *********************************************************************
+
+# Helper functions for 64-bit integer arithmetic.  PowerPC 64 version.
+
+        .text
+
+# Shift right signed	
+	
+        .balign 16
+        .globl __i64_sar
+__i64_sar:
+        rldimi r4, r3, 32, 0   # reassemble (r3,r4) as a 64-bit integer in r4
+	srad r4, r4, r5
+        srdi r3, r4, 32        # split r4 into (r3,r4)
+        blr
+        .type __i64_sar, @function
+        .size __i64_sar, .-__i64_sar
+
+        
\ No newline at end of file
diff --git a/runtime/powerpc/ppc64/i64_sdiv.s b/runtime/powerpc/ppc64/i64_sdiv.s
new file mode 100644
index 00000000..2bf5b574
--- /dev/null
+++ b/runtime/powerpc/ppc64/i64_sdiv.s
@@ -0,0 +1,52 @@
+# *****************************************************************
+#
+#               The Compcert verified compiler
+#
+#           Xavier Leroy, INRIA Paris-Rocquencourt
+#
+# Copyright (c) 2013 Institut National de Recherche en Informatique et
+#  en Automatique.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the <organization> nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT
+# HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# *********************************************************************
+
+# Helper functions for 64-bit integer arithmetic.  PowerPC 64 version.
+
+        .text
+
+### Signed division	
+	
+        .balign 16
+        .globl __i64_sdiv
+__i64_sdiv:
+        rldimi r4, r3, 32, 0   # reassemble (r3,r4) as a 64-bit integer in r4
+        rldimi r6, r5, 32, 0   # reassemble (r5,r6) as a 64-bit integer in r6
+	divd r4, r4, r6
+        srdi r3, r4, 32        # split r4 into (r3,r4)
+	blr
+        .type __i64_sdiv, @function
+        .size __i64_sdiv, .-__i64_sdiv
+	
+        
\ No newline at end of file
diff --git a/runtime/powerpc/ppc64/i64_shl.s b/runtime/powerpc/ppc64/i64_shl.s
new file mode 100644
index 00000000..955de565
--- /dev/null
+++ b/runtime/powerpc/ppc64/i64_shl.s
@@ -0,0 +1,50 @@
+# *****************************************************************
+#
+#               The Compcert verified compiler
+#
+#           Xavier Leroy, INRIA Paris-Rocquencourt
+#
+# Copyright (c) 2013 Institut National de Recherche en Informatique et
+#  en Automatique.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the <organization> nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT
+# HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# *********************************************************************
+
+# Helper functions for 64-bit integer arithmetic.  PowerPC 64 version.
+
+        .text
+
+# Shift left
+	
+        .balign 16
+        .globl __i64_shl
+__i64_shl:
+        rldimi r4, r3, 32, 0   # reassemble (r3,r4) as a 64-bit integer in r4
+	sld r4, r4, r5
+        srdi r3, r4, 32        # split r4 into (r3,r4)
+        blr
+        .type __i64_shl, @function
+        .size __i64_shl, .-__i64_shl
+        
\ No newline at end of file
diff --git a/runtime/powerpc/ppc64/i64_shr.s b/runtime/powerpc/ppc64/i64_shr.s
new file mode 100644
index 00000000..ca5ac9b2
--- /dev/null
+++ b/runtime/powerpc/ppc64/i64_shr.s
@@ -0,0 +1,51 @@
+# *****************************************************************
+#
+#               The Compcert verified compiler
+#
+#           Xavier Leroy, INRIA Paris-Rocquencourt
+#
+# Copyright (c) 2013 Institut National de Recherche en Informatique et
+#  en Automatique.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the <organization> nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT
+# HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# *********************************************************************
+
+# Helper functions for 64-bit integer arithmetic.  PowerPC 64 version.
+
+        .text
+
+# Shift right unsigned
+	
+        .balign 16
+        .globl __i64_shr
+__i64_shr:
+        rldimi r4, r3, 32, 0   # reassemble (r3,r4) as a 64-bit integer in r4
+	srd r4, r4, r5
+        srdi r3, r4, 32        # split r4 into (r3,r4)
+        blr
+        .type __i64_shr, @function
+        .size __i64_shr, .-__i64_shr
+	
+        
\ No newline at end of file
diff --git a/runtime/powerpc/ppc64/i64_smod.s b/runtime/powerpc/ppc64/i64_smod.s
new file mode 100644
index 00000000..35be366d
--- /dev/null
+++ b/runtime/powerpc/ppc64/i64_smod.s
@@ -0,0 +1,54 @@
+# *****************************************************************
+#
+#               The Compcert verified compiler
+#
+#           Xavier Leroy, INRIA Paris-Rocquencourt
+#
+# Copyright (c) 2013 Institut National de Recherche en Informatique et
+#  en Automatique.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the <organization> nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT
+# HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# *********************************************************************
+
+# Helper functions for 64-bit integer arithmetic.  PowerPC 64 version.
+
+        .text
+
+## Signed remainder	
+	
+        .balign 16
+        .globl __i64_smod
+__i64_smod:
+        rldimi r4, r3, 32, 0   # reassemble (r3,r4) as a 64-bit integer in r4
+        rldimi r6, r5, 32, 0   # reassemble (r5,r6) as a 64-bit integer in r6
+	divd r0, r4, r6
+	mulld r0, r0, r6
+        subf r4, r0, r4
+        srdi r3, r4, 32        # split r4 into (r3,r4)
+        blr
+        .type __i64_smod, @function
+        .size __i64_smod, .-__i64_smod
+
+        
\ No newline at end of file
diff --git a/runtime/powerpc/ppc64/i64_stod.s b/runtime/powerpc/ppc64/i64_stod.s
new file mode 100644
index 00000000..3636d0b5
--- /dev/null
+++ b/runtime/powerpc/ppc64/i64_stod.s
@@ -0,0 +1,50 @@
+# *****************************************************************
+#
+#               The Compcert verified compiler
+#
+#           Xavier Leroy, INRIA Paris-Rocquencourt
+#
+# Copyright (c) 2013 Institut National de Recherche en Informatique et
+#  en Automatique.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the <organization> nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT
+# HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# *********************************************************************
+
+# Helper functions for 64-bit integer arithmetic.  PowerPC 64 version.
+
+### Conversion from signed long to double float	
+
+        .balign 16
+        .globl __i64_stod
+__i64_stod:
+        rldimi r4, r3, 32, 0   # reassemble (r3,r4) as a 64-bit integer in r4
+	stdu r4, -16(r1)
+        lfd f1, 0(r1)
+        fcfid f1, f1
+        addi r1, r1, 16
+        blr
+        .type __i64_stod, @function
+        .size __i64_stod, .-__i64_stod
+
diff --git a/runtime/powerpc/ppc64/i64_stof.s b/runtime/powerpc/ppc64/i64_stof.s
new file mode 100644
index 00000000..8830d594
--- /dev/null
+++ b/runtime/powerpc/ppc64/i64_stof.s
@@ -0,0 +1,68 @@
+# *****************************************************************
+#
+#               The Compcert verified compiler
+#
+#           Xavier Leroy, INRIA Paris-Rocquencourt
+#
+# Copyright (c) 2013 Institut National de Recherche en Informatique et
+#  en Automatique.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the <organization> nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT
+# HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# *********************************************************************
+
+# Helper functions for 64-bit integer arithmetic.  PowerPC 64 version.
+
+        .text
+
+### Conversion from signed long to single float	
+
+        .balign 16
+        .globl __i64_stof
+__i64_stof:
+        rldimi r4, r3, 32, 0   # reassemble (r3,r4) as a 64-bit integer in r4
+   # Check whether -2^53 <= X < 2^53	
+        sradi r5, r4, 53
+        addi r5, r5, 1
+        cmpldi r5, 2
+	blt 1f
+   # X is large enough that double rounding can occur.
+   # Avoid it by nudging X away from the points where double rounding
+   # occurs (the "round to odd" technique)
+        rldicl r5, r4, 0, 53     # extract bits 0 to 11 of X
+        addi r5, r5, 0x7FF       # r5 = (X & 0x7FF) + 0x7FF
+   # bit 12 of r5 is 0 if all low 12 bits of X are 0, 1 otherwise
+   # bits 13-63 of r5 are 0
+        or r4, r4, r5            # correct bit number 12 of X
+        rldicr r4, r4, 0, 52     # set to 0 bits 0 to 11 of X
+   # Convert to double, then round to single
+1:      stdu r4, -16(r1)
+        lfd f1, 0(r1)
+        fcfid f1, f1
+	frsp f1, f1
+        addi r1, r1, 16
+        blr
+        .type __i64_stof, @function
+        .size __i64_stof, .-__i64_stof
+	
diff --git a/runtime/powerpc/ppc64/i64_udiv.s b/runtime/powerpc/ppc64/i64_udiv.s
new file mode 100644
index 00000000..a6a3bcb3
--- /dev/null
+++ b/runtime/powerpc/ppc64/i64_udiv.s
@@ -0,0 +1,51 @@
+# *****************************************************************
+#
+#               The Compcert verified compiler
+#
+#           Xavier Leroy, INRIA Paris-Rocquencourt
+#
+# Copyright (c) 2013 Institut National de Recherche en Informatique et
+#  en Automatique.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the <organization> nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT
+# HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# *********************************************************************
+
+# Helper functions for 64-bit integer arithmetic.  PowerPC 64 version.
+
+        .text
+
+### Unsigned division	
+
+        .balign 16
+        .globl __i64_udiv
+__i64_udiv:
+        rldimi r4, r3, 32, 0   # reassemble (r3,r4) as a 64-bit integer in r4
+        rldimi r6, r5, 32, 0   # reassemble (r5,r6) as a 64-bit integer in r6
+	divdu r4, r4, r6
+        srdi r3, r4, 32        # split r4 into (r3,r4)
+        blr
+        .type __i64_udiv, @function
+        .size __i64_udiv, .-__i64_udiv
+
diff --git a/runtime/powerpc/ppc64/i64_umod.s b/runtime/powerpc/ppc64/i64_umod.s
new file mode 100644
index 00000000..6bda1903
--- /dev/null
+++ b/runtime/powerpc/ppc64/i64_umod.s
@@ -0,0 +1,53 @@
+# *****************************************************************
+#
+#               The Compcert verified compiler
+#
+#           Xavier Leroy, INRIA Paris-Rocquencourt
+#
+# Copyright (c) 2013 Institut National de Recherche en Informatique et
+#  en Automatique.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the <organization> nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT
+# HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# *********************************************************************
+
+# Helper functions for 64-bit integer arithmetic.  PowerPC 64 version.
+
+        .text
+
+### Unsigned modulus
+
+        .balign 16
+        .globl __i64_umod
+__i64_umod:
+        rldimi r4, r3, 32, 0   # reassemble (r3,r4) as a 64-bit integer in r4
+        rldimi r6, r5, 32, 0   # reassemble (r5,r6) as a 64-bit integer in r6
+	divdu r0, r4, r6
+	mulld r0, r0, r6
+        subf r4, r0, r4
+        srdi r3, r4, 32        # split r4 into (r3,r4)
+        blr
+        .type __i64_umod, @function
+        .size __i64_umod, .-__i64_umod
+
diff --git a/runtime/powerpc/ppc64/i64_utod.s b/runtime/powerpc/ppc64/i64_utod.s
new file mode 100644
index 00000000..ddde91dd
--- /dev/null
+++ b/runtime/powerpc/ppc64/i64_utod.s
@@ -0,0 +1,79 @@
+# *****************************************************************
+#
+#               The Compcert verified compiler
+#
+#           Xavier Leroy, INRIA Paris-Rocquencourt
+#
+# Copyright (c) 2013 Institut National de Recherche en Informatique et
+#  en Automatique.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the <organization> nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT
+# HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# *********************************************************************
+
+# Helper functions for 64-bit integer arithmetic.  PowerPC 64 version.
+
+        .text
+
+### Conversion from unsigned long to double float	
+
+        .balign 16
+        .globl __i64_utod
+__i64_utod:
+	rldicl r3, r3, 0, 32    # clear top 32 bits
+	rldicl r4, r4, 0, 32    # clear top 32 bits
+	lis r5, 0x4f80          # 0x4f80_0000 = 2^32 in binary32 format
+        stdu r3, -32(r1)
+        std r4, 8(r1)
+        stw r5, 16(r1)
+        lfd f1, 0(r1)           # high 32 bits of argument
+        lfd f2, 8(r1)           # low 32 bits of argument
+	lfs f3, 16(r1)          # 2^32
+        fcfid f1, f1            # convert both 32-bit halves to FP (exactly)
+	fcfid f2, f2
+        fmadd f1, f1, f3, f2    # compute hi * 2^32 + lo
+        addi r1, r1, 32
+        blr
+        .type __i64_utod, @function
+        .size __i64_utod, .-__i64_utod
+	
+# Alternate implementation using round-to-odd:
+#       rldimi r4, r3, 32, 0   # reassemble (r3,r4) as a 64-bit integer in r4
+#       cmpdi r4, 0            # is r4 >= 2^63 ?
+#       blt 1f
+#	stdu r4, -16(r1)       # r4 < 2^63: convert as signed
+#       lfd f1, 0(r1)
+#       fcfid f1, f1
+#       addi r1, r1, 16
+#       blr
+#1:     rldicl r0, r4, 0, 63   # extract low bit of r4
+#       srdi r4, r4, 1
+#       or r4, r4, r0          # round r4 to 63 bits, using round-to-odd
+#	stdu r4, -16(r1)       # convert to binary64
+#       lfd f1, 0(r1)
+#       fcfid f1, f1
+#       fadd f1, f1, f1        # multiply result by 2
+#       addi r1, r1, 16
+#       blr
+        
\ No newline at end of file