dnl IA-64 mpn_mul_2 -- Multiply a n-limb number with a 2-limb number
and store
dnl store the result to a (n+1)-limb number.
dnl Contributed to the GNU project by Torbjorn Granlund.
dnl Copyright 2004, 2011 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/.
include(`../config.m4
')
C cycles/limb
C Itanium: ?
C Itanium 2: 1.5
C TODO
C * Clean up variable names,
and try to decrease the number of distinct
C registers used.
C * Clean up feed-in
code to not require zeroing several registers.
C * Make sure we don
't depend on uninitialized predicate registers.
C * Could perhaps save a few cycles by using 1 c/l
carry propagation in
C wind-down
code.
C * Ultimately rewrite. The problem with
this code is that it first uses a
C loaded u value in one xma pair, then leaves it live over several unrelated
C xma pairs, before it uses it again. It should actually be quite possible
C to just swap some aligned xma pairs around. But we should then schedule
C u loads further from the first use.
C INPUT PARAMETERS
define(`rp
',`r32')
define(`up
',`r33')
define(`n
',`r34')
define(`vp
',`r35')
define(`srp
',`r3')
define(`v0
',`f6')
define(`v1
',`f7')
define(`s0
',`r14')
define(`acc0
',`r15')
define(`pr0_0
',`r16') define(`pr0_1
',`r17')
define(`pr0_2
',`r18') define(`pr0_3
',`r19')
define(`pr1_0
',`r20') define(`pr1_1
',`r21')
define(`pr1_2
',`r22') define(`pr1_3
',`r23')
define(`acc1_0
',`r24') define(`acc1_1
',`r25')
define(`acc1_2
',`r26') define(`acc1_3
',`r27')
dnl define(`
',`r28')
dnl define(`
',`r29')
dnl define(`
',`r30')
dnl define(`
',`r31')
define(`fp0b_0
',`f8') define(`fp0b_1
',`f9')
define(`fp0b_2
',`f10') define(`fp0b_3
',`f11')
define(`fp1a_0
',`f12') define(`fp1a_1
',`f13')
define(`fp1a_2
',`f14') define(`fp1a_3
',`f15')
define(`fp1b_0
',`f32') define(`fp1b_1
',`f33')
define(`fp1b_2
',`f34') define(`fp1b_3
',`f35')
define(`fp2a_0
',`f36') define(`fp2a_1
',`f37')
define(`fp2a_2
',`f38') define(`fp2a_3
',`f39')
define(`u_0
',`f44') define(`u_1
',`f45')
define(`u_2
',`f46') define(`u_3
',`f47')
define(`ux
',`f49')
define(`uy
',`f51')
ASM_START()
PROLOGUE(mpn_mul_2)
.prologue
.save ar.lc, r2
.body
ifdef(`HAVE_ABI_32
',`
{.mmi
; addp4 rp = 0, rp C M I
addp4 up = 0, up C M I
addp4 vp = 0, vp C M I
}{.mmi
; nop 1
nop 1
zxt4 n = n C I
;;
}
')
{.mmi
; ldf8 ux = [up], 8 C M
ldf8 v0 = [vp], 8 C M
mov r2 = ar.lc C I0
}{.mmi
; nop 1 C M
and r14 = 3, n C M I
add n = -2, n C M I
;;
}{.mmi
; ldf8 uy = [up], 8 C M
ldf8 v1 = [vp] C M
shr.u n = n, 2 C I0
}{.mmi
; nop 1 C M
cmp.
eq p10, p0 = 1, r14 C M I
cmp.
eq p11, p0 = 2, r14 C M I
;;
}{.mmi
; nop 1 C M
cmp.
eq p12, p0 = 3, r14 C M I
mov ar.lc = n C I0
}{.bbb
; (p10) br.dptk L(b01) C B
(p11) br.dptk L(b10) C B
(p12) br.dptk L(b11) C B
;;
}
ALIGN(32)
L(b00): ldf8 u_1 = [up], 8
mov acc1_2 = 0
mov pr1_2 = 0
mov pr0_3 = 0
cmp.
ne p8, p9 = r0, r0
;;
xma.l fp0b_3 = ux, v0, f0
cmp.
ne p12, p13 = r0, r0
ldf8 u_2 = [up], 8
xma.hu fp1a_3 = ux, v0, f0
br.cloop.dptk L(gt4)
xma.l fp0b_0 = uy, v0, f0
xma.hu fp1a_0 = uy, v0, f0
;;
getfsig acc0 = fp0b_3
xma.l fp1b_3 = ux, v1, fp1a_3
xma.hu fp2a_3 = ux, v1, fp1a_3
;;
xma.l fp0b_1 = u_1, v0, f0
xma.hu fp1a_1 = u_1, v0, f0
;;
getfsig pr0_0 = fp0b_0
xma.l fp1b_0 = uy, v1, fp1a_0
xma.hu fp2a_0 = uy, v1, fp1a_0
;;
getfsig pr1_3 = fp1b_3
getfsig acc1_3 = fp2a_3
xma.l fp0b_2 = u_2, v0, f0
xma.hu fp1a_2 = u_2, v0, f0
br L(cj4)
L(gt4): xma.l fp0b_0 = uy, v0, f0
xma.hu fp1a_0 = uy, v0, f0
;;
getfsig acc0 = fp0b_3
xma.l fp1b_3 = ux, v1, fp1a_3
ldf8 u_3 = [up], 8
xma.hu fp2a_3 = ux, v1, fp1a_3
;;
xma.l fp0b_1 = u_1, v0, f0
xma.hu fp1a_1 = u_1, v0, f0
;;
getfsig pr0_0 = fp0b_0
xma.l fp1b_0 = uy, v1, fp1a_0
xma.hu fp2a_0 = uy, v1, fp1a_0
;;
ldf8 u_0 = [up], 8
getfsig pr1_3 = fp1b_3
xma.l fp0b_2 = u_2, v0, f0
;;
getfsig acc1_3 = fp2a_3
xma.hu fp1a_2 = u_2, v0, f0
br L(00)
ALIGN(32)
L(b01): ldf8 u_0 = [up], 8 C M
mov acc1_1 = 0 C M I
mov pr1_1 = 0 C M I
mov pr0_2 = 0 C M I
cmp.
ne p6, p7 = r0, r0 C M I
;;
xma.l fp0b_2 = ux, v0, f0 C F
cmp.
ne p10, p11 = r0, r0 C M I
ldf8 u_1 = [up], 8 C M
xma.hu fp1a_2 = ux, v0, f0 C F
;;
xma.l fp0b_3 = uy, v0, f0 C F
xma.hu fp1a_3 = uy, v0, f0 C F
;;
getfsig acc0 = fp0b_2 C M
xma.l fp1b_2 = ux, v1,fp1a_2 C F
ldf8 u_2 = [up], 8 C M
xma.hu fp2a_2 = ux, v1,fp1a_2 C F
br.cloop.dptk L(gt5)
xma.l fp0b_0 = u_0, v0, f0 C F
xma.hu fp1a_0 = u_0, v0, f0 C F
;;
getfsig pr0_3 = fp0b_3 C M
xma.l fp1b_3 = uy, v1,fp1a_3 C F
xma.hu fp2a_3 = uy, v1,fp1a_3 C F
;;
getfsig pr1_2 = fp1b_2 C M
getfsig acc1_2 = fp2a_2 C M
xma.l fp0b_1 = u_1, v0, f0 C F
xma.hu fp1a_1 = u_1, v0, f0 C F
br L(cj5)
L(gt5): xma.l fp0b_0 = u_0, v0, f0
xma.hu fp1a_0 = u_0, v0, f0
;;
getfsig pr0_3 = fp0b_3
xma.l fp1b_3 = uy, v1, fp1a_3
xma.hu fp2a_3 = uy, v1, fp1a_3
;;
ldf8 u_3 = [up], 8
getfsig pr1_2 = fp1b_2
xma.l fp0b_1 = u_1, v0, f0
;;
getfsig acc1_2 = fp2a_2
xma.hu fp1a_1 = u_1, v0, f0
br L(01)
ALIGN(32)
L(b10): br.cloop.dptk L(gt2)
xma.l fp0b_1 = ux, v0, f0
xma.hu fp1a_1 = ux, v0, f0
;;
xma.l fp0b_2 = uy, v0, f0
xma.hu fp1a_2 = uy, v0, f0
;;
stf8 [rp] = fp0b_1, 8
xma.l fp1b_1 = ux, v1, fp1a_1
xma.hu fp2a_1 = ux, v1, fp1a_1
;;
getfsig acc0 = fp0b_2
xma.l fp1b_2 = uy, v1, fp1a_2
xma.hu fp2a_2 = uy, v1, fp1a_2
;;
getfsig pr1_1 = fp1b_1
getfsig acc1_1 = fp2a_1
mov ar.lc = r2
getfsig pr1_2 = fp1b_2
getfsig r8 = fp2a_2
;;
add s0 = pr1_1, acc0
;;
st8 [rp] = s0, 8
cmp.ltu p8, p9 = s0, pr1_1
sub r31 = -1, acc1_1
;;
.pred.rel
"mutex", p8, p9
(p8)
add acc0 = pr1_2, acc1_1, 1
(p9)
add acc0 = pr1_2, acc1_1
(p8)
cmp.leu p10, p0 = r31, pr1_2
(p9)
cmp.ltu p10, p0 = r31, pr1_2
;;
st8 [rp] = acc0, 8
(p10)
add r8 = 1, r8
br.
ret.sptk.many b0
L(gt2): ldf8 u_3 = [up], 8
mov acc1_0 = 0
mov pr1_0 = 0
;;
mov pr0_1 = 0
xma.l fp0b_1 = ux, v0, f0
ldf8 u_0 = [up], 8
xma.hu fp1a_1 = ux, v0, f0
;;
xma.l fp0b_2 = uy, v0, f0
xma.hu fp1a_2 = uy, v0, f0
;;
getfsig acc0 = fp0b_1
xma.l fp1b_1 = ux, v1, fp1a_1
xma.hu fp2a_1 = ux, v1, fp1a_1
;;
ldf8 u_1 = [up], 8
xma.l fp0b_3 = u_3, v0, f0
xma.hu fp1a_3 = u_3, v0, f0
;;
getfsig pr0_2 = fp0b_2
xma.l fp1b_2 = uy, v1, fp1a_2
xma.hu fp2a_2 = uy, v1, fp1a_2
;;
ldf8 u_2 = [up], 8
getfsig pr1_1 = fp1b_1
;;
{.mfi
; getfsig acc1_1 = fp2a_1
xma.l fp0b_0 = u_0, v0, f0
cmp.
ne p8, p9 = r0, r0
}{.mfb
; cmp.ne p12, p13 = r0, r0
xma.hu fp1a_0 = u_0, v0, f0
br L(10)
}
ALIGN(32)
L(b11):
mov acc1_3 = 0
mov pr1_3 = 0
mov pr0_0 = 0
ldf8 u_2 = [up], 8
cmp.
ne p6, p7 = r0, r0
br.cloop.dptk L(gt3)
;;
xma.l fp0b_0 = ux, v0, f0
xma.hu fp1a_0 = ux, v0, f0
;;
cmp.
ne p10, p11 = r0, r0
xma.l fp0b_1 = uy, v0, f0
xma.hu fp1a_1 = uy, v0, f0
;;
getfsig acc0 = fp0b_0
xma.l fp1b_0 = ux, v1, fp1a_0
xma.hu fp2a_0 = ux, v1, fp1a_0
;;
xma.l fp0b_2 = u_2, v0, f0
xma.hu fp1a_2 = u_2, v0, f0
;;
getfsig pr0_1 = fp0b_1
xma.l fp1b_1 = uy, v1, fp1a_1
xma.hu fp2a_1 = uy, v1, fp1a_1
;;
getfsig pr1_0 = fp1b_0
getfsig acc1_0 = fp2a_0
br L(cj3)
L(gt3): xma.l fp0b_0 = ux, v0, f0
cmp.
ne p10, p11 = r0, r0
ldf8 u_3 = [up], 8
xma.hu fp1a_0 = ux, v0, f0
;;
xma.l fp0b_1 = uy, v0, f0
xma.hu fp1a_1 = uy, v0, f0
;;
getfsig acc0 = fp0b_0
xma.l fp1b_0 = ux, v1, fp1a_0
ldf8 u_0 = [up], 8
xma.hu fp2a_0 = ux, v1, fp1a_0
;;
xma.l fp0b_2 = u_2, v0, f0
xma.hu fp1a_2 = u_2, v0, f0
;;
getfsig pr0_1 = fp0b_1
xma.l fp1b_1 = uy, v1, fp1a_1
xma.hu fp2a_1 = uy, v1, fp1a_1
;;
ldf8 u_1 = [up], 8
getfsig pr1_0 = fp1b_0
;;
getfsig acc1_0 = fp2a_0
xma.l fp0b_3 = u_3, v0, f0
xma.hu fp1a_3 = u_3, v0, f0
br L(11)
C *** MAIN LOOP START ***
ALIGN(32)
L(top): C 00
.pred.rel
"mutex", p8, p9
.pred.rel
"mutex", p12, p13
ldf8 u_3 = [up], 8
getfsig pr1_2 = fp1b_2
(p8)
cmp.leu p6, p7 = acc0, pr0_1
(p9)
cmp.ltu p6, p7 = acc0, pr0_1
(p12)
cmp.leu p10, p11 = s0, pr1_0
(p13)
cmp.ltu p10, p11 = s0, pr1_0
;; C 01
.pred.rel
"mutex", p6, p7
getfsig acc1_2 = fp2a_2
st8 [rp] = s0, 8
xma.l fp0b_1 = u_1, v0, f0
(p6)
add acc0 = pr0_2, acc1_0, 1
(p7)
add acc0 = pr0_2, acc1_0
xma.hu fp1a_1 = u_1, v0, f0
;; C 02
L(01):
.pred.rel
"mutex", p10, p11
getfsig pr0_0 = fp0b_0
xma.l fp1b_0 = u_0, v1, fp1a_0
(p10)
add s0 = pr1_1, acc0, 1
(p11)
add s0 = pr1_1, acc0
xma.hu fp2a_0 = u_0, v1, fp1a_0
nop 1
;; C 03
.pred.rel
"mutex", p6, p7
.pred.rel
"mutex", p10, p11
ldf8 u_0 = [up], 8
getfsig pr1_3 = fp1b_3
(p6)
cmp.leu p8, p9 = acc0, pr0_2
(p7)
cmp.ltu p8, p9 = acc0, pr0_2
(p10)
cmp.leu p12, p13 = s0, pr1_1
(p11)
cmp.ltu p12, p13 = s0, pr1_1
;; C 04
.pred.rel
"mutex", p8, p9
getfsig acc1_3 = fp2a_3
st8 [rp] = s0, 8
xma.l fp0b_2 = u_2, v0, f0
(p8)
add acc0 = pr0_3, acc1_1, 1
(p9)
add acc0 = pr0_3, acc1_1
xma.hu fp1a_2 = u_2, v0, f0
;; C 05
L(00):
.pred.rel
"mutex", p12, p13
getfsig pr0_1 = fp0b_1
xma.l fp1b_1 = u_1, v1, fp1a_1
(p12)
add s0 = pr1_2, acc0, 1
(p13)
add s0 = pr1_2, acc0
xma.hu fp2a_1 = u_1, v1, fp1a_1
nop 1
;; C 06
.pred.rel
"mutex", p8, p9
.pred.rel
"mutex", p12, p13
ldf8 u_1 = [up], 8
getfsig pr1_0 = fp1b_0
(p8)
cmp.leu p6, p7 = acc0, pr0_3
(p9)
cmp.ltu p6, p7 = acc0, pr0_3
(p12)
cmp.leu p10, p11 = s0, pr1_2
(p13)
cmp.ltu p10, p11 = s0, pr1_2
;; C 07
.pred.rel
"mutex", p6, p7
getfsig acc1_0 = fp2a_0
st8 [rp] = s0, 8
xma.l fp0b_3 = u_3, v0, f0
(p6)
add acc0 = pr0_0, acc1_2, 1
(p7)
add acc0 = pr0_0, acc1_2
xma.hu fp1a_3 = u_3, v0, f0
;; C 08
L(11):
.pred.rel
"mutex", p10, p11
getfsig pr0_2 = fp0b_2
xma.l fp1b_2 = u_2, v1, fp1a_2
(p10)
add s0 = pr1_3, acc0, 1
(p11)
add s0 = pr1_3, acc0
xma.hu fp2a_2 = u_2, v1, fp1a_2
nop 1
;; C 09
.pred.rel
"mutex", p6, p7
.pred.rel
"mutex", p10, p11
ldf8 u_2 = [up], 8
getfsig pr1_1 = fp1b_1
(p6)
cmp.leu p8, p9 = acc0, pr0_0
(p7)
cmp.ltu p8, p9 = acc0, pr0_0
(p10)
cmp.leu p12, p13 = s0, pr1_3
(p11)
cmp.ltu p12, p13 = s0, pr1_3
;; C 10
.pred.rel
"mutex", p8, p9
getfsig acc1_1 = fp2a_1
st8 [rp] = s0, 8
xma.l fp0b_0 = u_0, v0, f0
(p8)
add acc0 = pr0_1, acc1_3, 1
(p9)
add acc0 = pr0_1, acc1_3
xma.hu fp1a_0 = u_0, v0, f0
;; C 11
L(10):
.pred.rel
"mutex", p12, p13
getfsig pr0_3 = fp0b_3
xma.l fp1b_3 = u_3, v1, fp1a_3
(p12)
add s0 = pr1_0, acc0, 1
(p13)
add s0 = pr1_0, acc0
xma.hu fp2a_3 = u_3, v1, fp1a_3
br.cloop.dptk L(top)
;;
C *** MAIN LOOP
END ***
.pred.rel
"mutex", p8, p9
.pred.rel
"mutex", p12, p13
{.mmi
; getfsig pr1_2 = fp1b_2
st8 [rp] = s0, 8
(p8)
cmp.leu p6, p7 = acc0, pr0_1
}{.mmi
; (p9) cmp.ltu p6, p7 = acc0, pr0_1
(p12)
cmp.leu p10, p11 = s0, pr1_0
(p13)
cmp.ltu p10, p11 = s0, pr1_0
;;
} .pred.rel
"mutex", p6, p7
{.mfi
; getfsig acc1_2 = fp2a_2
xma.l fp0b_1 = u_1, v0, f0
nop 1
}{.mmf
; (p6) add acc0 = pr0_2, acc1_0, 1
(p7)
add acc0 = pr0_2, acc1_0
xma.hu fp1a_1 = u_1, v0, f0
;;
}
L(cj5):
.pred.rel
"mutex", p10, p11
{.mfi
; getfsig pr0_0 = fp0b_0
xma.l fp1b_0 = u_0, v1, fp1a_0
(p10)
add s0 = pr1_1, acc0, 1
}{.mfi
; (p11) add s0 = pr1_1, acc0
xma.hu fp2a_0 = u_0, v1, fp1a_0
nop 1
;;
} .pred.rel
"mutex", p6, p7
.pred.rel
"mutex", p10, p11
{.mmi
; getfsig pr1_3 = fp1b_3
st8 [rp] = s0, 8
(p6)
cmp.leu p8, p9 = acc0, pr0_2
}{.mmi
; (p7) cmp.ltu p8, p9 = acc0, pr0_2
(p10)
cmp.leu p12, p13 = s0, pr1_1
(p11)
cmp.ltu p12, p13 = s0, pr1_1
;;
} .pred.rel
"mutex", p8, p9
{.mfi
; getfsig acc1_3 = fp2a_3
xma.l fp0b_2 = u_2, v0, f0
nop 1
}{.mmf
; (p8) add acc0 = pr0_3, acc1_1, 1
(p9)
add acc0 = pr0_3, acc1_1
xma.hu fp1a_2 = u_2, v0, f0
;;
}
L(cj4):
.pred.rel
"mutex", p12, p13
{.mfi
; getfsig pr0_1 = fp0b_1
xma.l fp1b_1 = u_1, v1, fp1a_1
(p12)
add s0 = pr1_2, acc0, 1
}{.mfi
; (p13) add s0 = pr1_2, acc0
xma.hu fp2a_1 = u_1, v1, fp1a_1
nop 1
;;
} .pred.rel
"mutex", p8, p9
.pred.rel
"mutex", p12, p13
{.mmi
; getfsig pr1_0 = fp1b_0
st8 [rp] = s0, 8
(p8)
cmp.leu p6, p7 = acc0, pr0_3
}{.mmi
; (p9) cmp.ltu p6, p7 = acc0, pr0_3
(p12)
cmp.leu p10, p11 = s0, pr1_2
(p13)
cmp.ltu p10, p11 = s0, pr1_2
;;
} .pred.rel
"mutex", p6, p7
{.mmi
; getfsig acc1_0 = fp2a_0
(p6)
add acc0 = pr0_0, acc1_2, 1
(p7)
add acc0 = pr0_0, acc1_2
;;
}
L(cj3):
.pred.rel
"mutex", p10, p11
{.mfi
; getfsig pr0_2 = fp0b_2
xma.l fp1b_2 = u_2, v1, fp1a_2
(p10)
add s0 = pr1_3, acc0, 1
}{.mfi
; (p11) add s0 = pr1_3, acc0
xma.hu fp2a_2 = u_2, v1, fp1a_2
nop 1
;;
} .pred.rel
"mutex", p6, p7
.pred.rel
"mutex", p10, p11
{.mmi
; getfsig pr1_1 = fp1b_1
st8 [rp] = s0, 8
(p6)
cmp.leu p8, p9 = acc0, pr0_0
}{.mmi
; (p7) cmp.ltu p8, p9 = acc0, pr0_0
(p10)
cmp.leu p12, p13 = s0, pr1_3
(p11)
cmp.ltu p12, p13 = s0, pr1_3
;;
} .pred.rel
"mutex", p8, p9
{.mmi
; getfsig acc1_1 = fp2a_1
(p8)
add acc0 = pr0_1, acc1_3, 1
(p9)
add acc0 = pr0_1, acc1_3
;;
} .pred.rel
"mutex", p12, p13
{.mmi
; (p12) add s0 = pr1_0, acc0, 1
(p13)
add s0 = pr1_0, acc0
nop 1
;;
} .pred.rel
"mutex", p8, p9
.pred.rel
"mutex", p12, p13
{.mmi
; getfsig pr1_2 = fp1b_2
st8 [rp] = s0, 8
(p8)
cmp.leu p6, p7 = acc0, pr0_1
}{.mmi
; (p9) cmp.ltu p6, p7 = acc0, pr0_1
(p12)
cmp.leu p10, p11 = s0, pr1_0
(p13)
cmp.ltu p10, p11 = s0, pr1_0
;;
} .pred.rel
"mutex", p6, p7
{.mmi
; getfsig r8 = fp2a_2
(p6)
add acc0 = pr0_2, acc1_0, 1
(p7)
add acc0 = pr0_2, acc1_0
;;
} .pred.rel
"mutex", p10, p11
{.mmi
; (p10) add s0 = pr1_1, acc0, 1
(p11)
add s0 = pr1_1, acc0
(p6)
cmp.leu p8, p9 = acc0, pr0_2
;;
} .pred.rel
"mutex", p10, p11
{.mmi
; (p7) cmp.ltu p8, p9 = acc0, pr0_2
(p10)
cmp.leu p12, p13 = s0, pr1_1
(p11)
cmp.ltu p12, p13 = s0, pr1_1
;;
} .pred.rel
"mutex", p8, p9
{.mmi
; st8 [rp] = s0, 8
(p8)
add acc0 = pr1_2, acc1_1, 1
(p9)
add acc0 = pr1_2, acc1_1
;;
} .pred.rel
"mutex", p8, p9
{.mmi
; (p8) cmp.leu p10, p11 = acc0, pr1_2
(p9)
cmp.ltu p10, p11 = acc0, pr1_2
(p12)
add acc0 = 1, acc0
;;
}{.mmi
; st8 [rp] = acc0, 8
(p12) cmpeqor p10, p0 = 0, acc0
nop 1
;;
}{.mib
; (p10) add r8 = 1, r8
mov ar.lc = r2
br.
ret.sptk.many b0
}
EPILOGUE()
ASM_END()
