2000-08-02 15:15:00 +00:00
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/* Add two limb vectors of the same length > 0 and store sum in a third
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limb vector.
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2014-01-01 11:03:15 +00:00
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Copyright (C) 2000-2014 Free Software Foundation, Inc.
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2000-08-02 15:15:00 +00:00
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Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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2001-07-07 10:13:33 +00:00
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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2000-08-02 15:15:00 +00:00
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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2001-07-07 10:13:33 +00:00
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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2000-08-02 15:15:00 +00:00
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License for more details.
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2001-07-07 10:13:33 +00:00
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You should have received a copy of the GNU Lesser General Public License
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2012-02-09 23:18:22 +00:00
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along with the GNU MP Library; see the file COPYING.LIB. If not,
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see <http://www.gnu.org/licenses/>. */
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2000-08-02 15:15:00 +00:00
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/*
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INPUT PARAMETERS
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res_ptr %r2
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s1_ptr %r3
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s2_ptr %r4
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size %r5
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*/
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#include "sysdep.h"
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#include "asm-syntax.h"
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.text
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ENTRY(__mpn_add_n)
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st %r6,24(%r15) # save register 6
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Update.
2003-12-05 Martin Schwidefsky <schwidefsky@de.ibm.com>
* sysdeps/s390/s390-32/elf/setjmp.S (setjmp, __setjmp): Add END
statements.
* sysdeps/s390/s390-64/elf/setjmp.S (setjmp, __setjmp): Likewise.
* sysdeps/s390/s390-32/sysdep.h (ENTRY): Add cfi_startproc directive.
(END): Add cfi_endproc directive.
* sysdeps/s390/s390-64/sysdep.h (ENTRY, END): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/socket.S (__socket): Remove
cfi_startproc and cfi_endproc directive.
* sysdeps/unix/sysv/linux/s390/s390-64/socket.S (__socket): Likewise.
* sysdeps/s390/s390-32/addmul_1.S (__mpn_addmul_1): Add CFI directives.
* sysdeps/s390/s390-32/add_n.S (__mpn_add_n): Likewise.
* sysdeps/s390/s390-64/add_n.S (__mpn_add_n): Likewise.
* sysdeps/s390/s390-32/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE):
Likewise.
* sysdeps/s390/s390-64/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE):
Likewise.
* sysdeps/s390/s390-32/mul_1.S (__mpn_mul_1): Likewise.
* sysdeps/s390/s390-32/sub_n.S (__mpn_sub_n): Likewise.
* sysdeps/s390/s390-64/sub_n.S (__mpn_sub_n): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S (__mmap64): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/mmap.S (__mmap): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/mmap.S (__mmap): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/syscall.S (syscall): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/syscall.S (syscall): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S (__syscall_error):
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.S (__syscall_error):
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/clone.S (__clone): Add CFI
directives. Move thread_start out of ENTRY/PSEUDO_END block to
make backchain terminate.
* sysdeps/unix/sysv/linux/s390/s390-64/clone.S (__clone): Likewise.
* sysdeps/s390/s390-32/backtrace.c (trace_arg): New structure.
(unwind_backtrace, unwind_getip): New variables.
(init, __backchain_backtrace, backtrace_helper): New functions.
(__backtrace): Use unwind info for backtrace instead of backchain
walking if the unwind functions can be found.
* sysdeps/s390/s390-64/backtrace.c: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/posix_fadvise64.c: New file.
* sysdeps/unix/sysv/linux/s390/sys/procfs.h (ELF_NGREG32): New #define.
(elf_greg_t32, elf_gregset_t32, elf_fpregset_t32): New types.
(elf_prstatus32, elf_prpsinfo32): New structures.
(prgregset32_t, prfpregset32_t, prstatus32_t, prpsinfo32_t): New types.
* scripts/data/c++-types-s390-linux-gnu.data: New file.
* scripts/data/c++-types-s390x-linux-gnu.data: New file.
2003-12-06 00:20:16 +00:00
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cfi_offset (%r6, -72)
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2000-08-02 15:15:00 +00:00
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sr %r1,%r1
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lhi %r0,1 # cannot use ahi to add carry, use alr
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.L0: l %r6,0(%r1,%r3) # .L0 -> no carry from last add
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al %r6,0(%r1,%r4)
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st %r6,0(%r1,%r2)
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la %r1,4(0,%r1)
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brc 3,.L3
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.L1: brct %r5,.L0
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slr %r2,%r2 # no last carry to return
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j .Lexit
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.L2: l %r6,0(%r1,%r3) # .L2 -> carry from last add
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al %r6,0(%r1,%r4)
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brc 3,.L4
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alr %r6,%r0 # no carry yet, add carry from last add
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st %r6,0(%r1,%r2)
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la %r1,4(0,%r1)
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brc 12,.L1 # new carry ?
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.L3: brct %r5,.L2
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lr %r2,%r0 # return last carry
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j .Lexit
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.L4: alr %r6,%r0 # already a carry, add carry from last add
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st %r6,0(%r1,%r2)
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la %r1,4(0,%r1)
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brct %r5,.L2
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lr %r2,%r0 # return last carry
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.Lexit: l %r6,24(%r15) # restore register 6
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br %r14
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END(__mpn_add_n)
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