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dnl SPARC v9-2011 simulation support.
dnl Contributed to the GNU project by Torbjörn Granlund.
dnl Copyright 2013 Free Software Foundation, Inc.
dnl This file is part of the GNU MP Library.
dnl
dnl The GNU MP Library is free software; you can redistribute it and/or modify
dnl it under the terms of either:
dnl
dnl * the GNU Lesser General Public License as published by the Free
dnl Software Foundation; either version 3 of the License, or (at your
dnl option) any later version.
dnl
dnl or
dnl
dnl * the GNU General Public License as published by the Free Software
dnl Foundation; either version 2 of the License, or (at your option) any
dnl later version.
dnl
dnl or both in parallel, as here.
dnl
dnl The GNU MP Library is distributed in the hope that it will be useful, but
dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
dnl for more details.
dnl
dnl You should have received copies of the GNU General Public License and the
dnl GNU Lesser General Public License along with the GNU MP Library. If not,
dnl see https://www.gnu.org/licenses/.
dnl Usage addxccc(r1,r2,r3, t1)
dnl 64-bit add with carry-in and carry-out
dnl FIXME: Register g2 must not be destination
define(`addxccc',`dnl
add %sp, -512, %sp
stx %g2, [%sp+2047+256+16]
mov 0, %g2
movcs %xcc, -1, %g2
addcc %g2, 1, %g0
addccc $1, $2, $3
ldx [%sp+2047+256+16], %g2
sub %sp, -512, %sp
')
dnl Usage addxc(r1,r2,r3, t1,t2)
dnl 64-bit add with carry-in
define(`addxc',`dnl
bcc %xcc, 1f
add $1, $2, $3
add $3, 1, $3
1:
')
dnl Usage umulxhi(r1,r2,r3)
dnl 64-bit multiply returning upper 64 bits
dnl Calls __gmpn_umulh using a non-standard calling convention
define(`umulxhi',`dnl
add %sp, -512, %sp
stx $1, [%sp+2047+256]
stx $2, [%sp+2047+256+8]
stx %o7, [%sp+2047+256+16]
call __gmpn_umulh
nop
ldx [%sp+2047+256+16], %o7
ldx [%sp+2047+256], $3
sub %sp, -512, %sp
')
dnl Usage lzcnt(r1,r2)
dnl Plain count leading zeros
dnl Calls __gmpn_lzcnt using a non-standard calling convention
define(`lzcnt',`dnl
add %sp, -512, %sp
stx %o7, [%sp+2047+256+16]
call __gmpn_lzcnt
stx $1, [%sp+2047+256]
ldx [%sp+2047+256+16], %o7
ldx [%sp+2047+256], $2
sub %sp, -512, %sp
')
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