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-.file "__umoddi3.s"
-
-// $FreeBSD: src/sys/libkern/ia64/__umoddi3.S,v 1.3 2003/02/11 20:15:11 schweikh Exp $
-//
-// Copyright (c) 2000, Intel Corporation
-// All rights reserved.
-//
-// Contributed 2/15/2000 by Marius Cornea, John Harrison, Cristina Iordache,
-// Ted Kubaska, Bob Norin, and Shane Story of the Computational Software Lab,
-// Intel Corporation.
-//
-// WARRANTY DISCLAIMER
-//
-// 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 INTEL OR ITS
-// CONTRIBUTORS 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.
-//
-// Intel Corporation is the author of this code, and requests that all
-// problem reports or change requests be submitted to it directly at
-// http://developer.intel.com/opensource.
-//
-
-.section .text
-
- // 64-bit unsigned integer remainder
-
-.proc __umoddi3#
-.align 32
-.global __umoddi3#
-.align 32
-
-__umoddi3:
-
-{ .mii
- alloc r31=ar.pfs,3,0,0,0
- nop.i 0
- nop.i 0
-} { .mmb
-
- // 64-BIT UNSIGNED INTEGER REMAINDER BEGINS HERE
-
- // general register used:
- // r32 - 64-bit unsigned integer dividend, called a below
- // r33 - 64-bit unsigned integer divisor, called b below
- // r8 - 64-bit unsigned integer result
- // floating-point registers used: f6, f7, f8, f9, f10, f11, f12
- // predicate registers used: p6
-
- setf.sig f12=r32 // holds a in integer form
- setf.sig f7=r33
- nop.b 0;;
-} { .mfi
- // get 2s complement of b
- sub r33=r0,r33
- fcvt.xuf.s1 f6=f12
- nop.i 0
-} { .mfi
- nop.m 0
- fcvt.xuf.s1 f7=f7
- nop.i 0;;
-} { .mfi
- nop.m 0
- // Step (1)
- // y0 = 1 / b in f8
- frcpa.s1 f8,p6=f6,f7
- nop.i 0;;
-} { .mfi
- nop.m 0
- // Step (2)
- // q0 = a * y0 in f10
- (p6) fma.s1 f10=f6,f8,f0
- nop.i 0
-} { .mfi
- nop.m 0
- // Step (3)
- // e0 = 1 - b * y0 in f9
- (p6) fnma.s1 f9=f7,f8,f1
- nop.i 0;;
-} { .mfi
- nop.m 0
- // Step (4)
- // q1 = q0 + e0 * q0 in f10
- (p6) fma.s1 f10=f9,f10,f10
- nop.i 0
-} { .mfi
- nop.m 0
- // Step (5)
- // e1 = e0 * e0 in f11
- (p6) fma.s1 f11=f9,f9,f0
- nop.i 0;;
-} { .mfi
- nop.m 0
- // Step (6)
- // y1 = y0 + e0 * y0 in f8
- (p6) fma.s1 f8=f9,f8,f8
- nop.i 0;;
-} { .mfi
- nop.m 0
- // Step (7)
- // q2 = q1 + e1 * q1 in f9
- (p6) fma.s1 f9=f11,f10,f10
- nop.i 0;;
-} { .mfi
- nop.m 0
- // Step (8)
- // y2 = y1 + e1 * y1 in f8
- (p6) fma.s1 f8=f11,f8,f8
- nop.i 0;;
-} { .mfi
- nop.m 0
- // Step (9)
- // r2 = a - b * q2 in f10
- (p6) fnma.s1 f10=f7,f9,f6
- nop.i 0;;
-} { .mfi
- // f7=-b
- setf.sig f7=r33
- // Step (10)
- // q3 = q2 + r2 * y2 in f8
- (p6) fma.s1 f8=f10,f8,f9
- nop.i 0;;
-} { .mfi
- nop.m 0
- // (11) q = trunc(q3)
- fcvt.fxu.trunc.s1 f8=f8
- nop.i 0;;
-} { .mfi
- nop.m 0
- // (12) r = a + (-b) * q
- xma.l f8=f8,f7,f12
- nop.i 0;;
-} { .mib
- getf.sig r8=f8
- nop.i 0
- nop.b 0
-}
-
- // 64-BIT UNSIGNED INTEGER REMAINDER ENDS HERE
-
-{ .mib
- nop.m 0
- nop.i 0
- br.ret.sptk b0;;
-}
-
-.endp __umoddi3