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--- a/extras/mini-os/arch/ia64/__udivsi3.S
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-.file "__udivsi3.s"
-
-// $FreeBSD: src/sys/libkern/ia64/__udivsi3.S,v 1.1.8.1 2005/01/31 23:26:21 imp 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
-
-// 32-bit unsigned integer divide
-
-.proc __udivsi3#
-.align 32
-.global __udivsi3#
-.align 32
-
-__udivsi3:
-
-{ .mii
- alloc r31=ar.pfs,2,0,0,0
- nop.i 0
- nop.i 0;;
-} { .mii
- nop.m 0
-
- // 32-BIT UNSIGNED INTEGER DIVIDE BEGINS HERE
-
- // general register used:
- // r32 - 32-bit unsigned integer dividend
- // r33 - 32-bit unsigned integer divisor
- // r8 - 32-bit unsigned integer result
- // r2 - scratch register
- // floating-point registers used: f6, f7, f8, f9
- // predicate registers used: p6
-
- zxt4 r32=r32
- zxt4 r33=r33;;
-} { .mmb
- setf.sig f6=r32
- setf.sig f7=r33
- nop.b 0;;
-} { .mfi
- nop.m 0
- fcvt.xf f6=f6
- nop.i 0
-} { .mfi
- nop.m 0
- fcvt.xf f7=f7
- mov r2 = 0x0ffdd;;
-} { .mfi
- setf.exp f9 = r2
- // (1) y0
- frcpa.s1 f8,p6=f6,f7
- nop.i 0;;
-} { .mfi
- nop.m 0
- // (2) q0 = a * y0
- (p6) fma.s1 f6=f6,f8,f0
- nop.i 0
-} { .mfi
- nop.m 0
- // (3) e0 = 1 - b * y0
- (p6) fnma.s1 f7=f7,f8,f1
- nop.i 0;;
-} { .mfi
- nop.m 0
- // (4) q1 = q0 + e0 * q0
- (p6) fma.s1 f6=f7,f6,f6
- nop.i 0
-} { .mfi
- nop.m 0
- // (5) e1 = e0 * e0 + 2^-34
- (p6) fma.s1 f7=f7,f7,f9
- nop.i 0;;
-} { .mfi
- nop.m 0
- // (6) q2 = q1 + e1 * q1
- (p6) fma.s1 f8=f7,f6,f6
- nop.i 0;;
-} { .mfi
- nop.m 0
- // (7) q = trunc(q2)
- fcvt.fxu.trunc.s1 f8=f8
- nop.i 0;;
-} { .mmi
- // quotient will be in the least significant 32 bits of r8 (if b != 0)
- getf.sig r8=f8
- nop.m 0
- nop.i 0;;
-}
-
- // 32-BIT UNSIGNED INTEGER DIVIDE ENDS HERE
-
-{ .mmb
- nop.m 0
- nop.m 0
- br.ret.sptk b0;;
-}
-
-.endp __udivsi3