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-//.file "scalbnl.s"
-
-// Copyright (C) 2000, 2001, Intel Corporation
-// All rights reserved.
-// 
-// Contributed 2/2/2000 by John Harrison, Ted Kubaska, Bob Norin, Shane Story,
-// and Ping Tak Peter Tang of the Computational Software Lab, Intel Corporation.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//
-// * Redistributions in binary form must reproduce the above copyright
-// notice, this list of conditions and the following disclaimer in the
-// documentation and/or other materials provided with the distribution.
-//
-// * The name of Intel Corporation may not be used to endorse or promote
-// products derived from this software without specific prior written
-// permission.
-//
-// 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.
-//
-// History
-//==============================================================
-// 2/02/00  Initial version
-// 1/26/01  scalbnl completely reworked and now standalone version 
-//
-// API
-//==============================================================
-// double-extended = scalbnl  (double-extended x, int n) 
-// input  floating point f8 and int n (r34) 
-// output floating point f8
-//
-// Returns x* 2**n using an fma and detects overflow
-// and underflow.   
-//
-//
-
-#include "libm_support.h"
-
-FR_Big         = f6
-FR_NBig        = f7
-FR_Floating_X  = f8
-FR_Result      = f8
-FR_Result2     = f9
-FR_Result3     = f11
-FR_Norm_X      = f12
-FR_Two_N       = f14
-FR_Two_to_Big  = f15
-
-GR_N_Biased    = r15
-GR_Big         = r16
-GR_NBig        = r17
-GR_Scratch     = r18
-GR_Scratch1    = r19
-GR_Bias        = r20
-GR_N_as_int    = r21
-
-GR_SAVE_B0          = r32
-GR_SAVE_GP          = r33
-GR_SAVE_PFS         = r34
-GR_Parameter_X      = r35
-GR_Parameter_Y      = r36
-GR_Parameter_RESULT = r37
-GR_Tag              = r38
-
-.align 32
-.global scalbnl
-
-.section .text
-.proc  scalbnl
-.align 32
-
-scalbnl: 
-
-//
-//   Is x NAN, INF, ZERO, +-?
-//   Build the exponent Bias
-//
-{    .mfi
-     alloc         r32=ar.pfs,2,1,4,0
-     fclass.m.unc  p7,p0 = FR_Floating_X, 0xe7 //@snan | @qnan | @inf | @zero
-     addl          GR_Bias = 0x0FFFF,r0
-}
-
-//
-//   Sign extend input
-//   Is N zero?
-//   Normalize x
-//
-{    .mfi
-     cmp.eq.unc    p6,p0 = r34,r0  
-     fnorm.s1      FR_Norm_X  =   FR_Floating_X 
-     sxt4          GR_N_as_int = r34
-}
-;;
-
-//
-//   Normalize x
-//   Branch and return special values.
-//   Create -35000
-//   Create 35000
-//
-{    .mfi
-     addl          GR_Big = 35000,r0
-     nop.f         0
-     add           GR_N_Biased = GR_Bias,GR_N_as_int
-}
-{    .mfb
-     addl          GR_NBig = -35000,r0
-(p7) fma.s0        FR_Result = FR_Floating_X,f1, f0 
-(p7) br.ret.spnt   b0  
-};;
-
-//
-//   Build the exponent Bias
-//   Return x when N = 0
-//
-{    .mfi
-     setf.exp      FR_Two_N = GR_N_Biased                   
-     nop.f         0
-     addl          GR_Scratch1  = 0x063BF,r0 
-}
-{    .mfb
-     addl          GR_Scratch  = 0x019C3F,r0 
-(p6) fma.s0        FR_Result = FR_Floating_X,f1, f0 
-(p6) br.ret.spnt   b0  
-};;
-
-//
-//   Create 2*big
-//   Create 2**-big 
-//   Is N > 35000     
-//   Is N < -35000     
-//   Raise Denormal operand flag with compare
-//   Main path, create 2**N
-//
-{    .mfi
-     setf.exp      FR_NBig = GR_Scratch1                  
-     nop.f         0
-     cmp.ge.unc    p6, p0 = GR_N_as_int, GR_Big
-}
-{    .mfi
-     setf.exp      FR_Big = GR_Scratch                  
-     fcmp.ge.s0    p0,p11 = FR_Floating_X,f0
-     cmp.le.unc    p8, p0 = GR_N_as_int, GR_NBig
-};;
-
-//
-//   Adjust 2**N if N was very small or very large
-//
-{    .mfi
-     nop.m 0
-(p6) fma.s1        FR_Two_N = FR_Big,f1,f0
-     nop.i 0
-}
-{ .mlx
-     nop.m 999
-(p0) movl          GR_Scratch = 0x0000000000033FFF 
-};;
-
-
-{    .mfi
-     nop.m 0
-(p8) fma.s1        FR_Two_N = FR_NBig,f1,f0
-     nop.i 0
-}
-{    .mlx
-     nop.m 999
-(p0) movl          GR_Scratch1= 0x0000000000013FFF 
-};;
-
-//   Set up necessary status fields 
-//
-//   S0 user supplied status
-//   S2 user supplied status + WRE + TD  (Overflows)
-//   S3 user supplied status + FZ + TD   (Underflows)
-//
-{    .mfi
-     nop.m 999
-(p0) fsetc.s3      0x7F,0x41
-     nop.i 999
-}
-{    .mfi
-     nop.m 999
-(p0) fsetc.s2      0x7F,0x42
-     nop.i 999
-};;
-
-//
-//   Do final operation
-//
-{    .mfi
-     setf.exp      FR_NBig = GR_Scratch
-     fma.s0      FR_Result = FR_Two_N,FR_Norm_X,f0 
-     nop.i         999
-}
-{    .mfi
-     nop.m         999
-     fma.s3      FR_Result3 = FR_Two_N,FR_Norm_X,f0 
-     nop.i         999
-};;
-{    .mfi
-     setf.exp      FR_Big = GR_Scratch1
-     fma.s2      FR_Result2 = FR_Two_N,FR_Norm_X,f0 
-     nop.i         999
-};;
-
-//   Check for overflow or underflow.
-//   Restore s3
-//   Restore s2
-//
-{    .mfi
-     nop.m 0
-     fsetc.s3      0x7F,0x40
-     nop.i 999 
-}
-{    .mfi
-     nop.m 0
-     fsetc.s2      0x7F,0x40
-     nop.i 999
-};;
-
-//
-//   Is the result zero?
-//
-{    .mfi
-     nop.m 999
-     fclass.m.unc  p6, p0 =  FR_Result3, 0x007
-     nop.i 999 
-} 
-{    .mfi
-     addl          GR_Tag = 174, r0
-     fcmp.ge.unc.s1 p7, p8 = FR_Result2 , FR_Big
-     nop.i 0
-};;
-
-//
-//   Detect masked underflow - Tiny + Inexact Only
-//
-{    .mfi
-     nop.m 999
-(p6) fcmp.neq.unc.s1 p6, p0 = FR_Result , FR_Result2
-     nop.i 999 
-};; 
-
-//
-//   Is result bigger the allowed range?
-//   Branch out for underflow
-//
-{    .mfb
-(p6) addl           GR_Tag = 175, r0
-(p8) fcmp.le.unc.s1 p9, p10 = FR_Result2 , FR_NBig
-(p6) br.cond.spnt   L(scalbnl_UNDERFLOW) 
-};;
-
-//
-//   Branch out for overflow
-//
-{ .mbb
-     nop.m 0
-(p7) br.cond.spnt   L(scalbnl_OVERFLOW) 
-(p9) br.cond.spnt   L(scalbnl_OVERFLOW) 
-};;
-
-//
-//   Return from main path.
-//
-{    .mfb
-     nop.m 999
-     nop.f 0
-     br.ret.sptk     b0;;                   
-}
-
-.endp scalbnl
-ASM_SIZE_DIRECTIVE(scalbnl)
-.proc __libm_error_region
-__libm_error_region:
-
-L(scalbnl_OVERFLOW): 
-L(scalbnl_UNDERFLOW): 
-
-//
-// Get stack address of N
-//
-.prologue
-{ .mfi
-    add   GR_Parameter_Y=-32,sp         
-    nop.f 0
-.save   ar.pfs,GR_SAVE_PFS
-    mov  GR_SAVE_PFS=ar.pfs              
-}
-//
-// Adjust sp 
-//
-{ .mfi
-.fframe 64
-   add sp=-64,sp                         
-   nop.f 0
-   mov GR_SAVE_GP=gp       
-};;
-
-//
-//  Store N on stack in correct position 
-//  Locate the address of x on stack
-//
-{ .mmi
-   st8 [GR_Parameter_Y] =  GR_N_as_int,16       
-   add GR_Parameter_X = 16,sp          
-.save   b0, GR_SAVE_B0
-   mov GR_SAVE_B0=b0                  
-};;
-
-//
-// Store x on the stack.
-// Get address for result on stack.
-//
-.body
-{ .mib
-   stfe [GR_Parameter_X] = FR_Norm_X 
-   add   GR_Parameter_RESULT = 0,GR_Parameter_Y   
-   nop.b 0
-}
-{ .mib
-   stfe [GR_Parameter_Y] = FR_Result                 
-   add   GR_Parameter_Y = -16,GR_Parameter_Y
-   br.call.sptk b0=__libm_error_support#   
-};;
-
-//
-//  Get location of result on stack
-//
-{ .mmi
-   nop.m 0
-   nop.m 0
-   add   GR_Parameter_RESULT = 48,sp    
-};;
-
-//
-//  Get the new result 
-//
-{ .mmi
-   ldfe  FR_Result = [GR_Parameter_RESULT]      
-.restore sp
-   add   sp = 64,sp                       
-   mov   b0 = GR_SAVE_B0                  
-};;
-
-//
-//  Restore gp, ar.pfs and return
-//
-{ .mib
-   mov   gp = GR_SAVE_GP                  
-   mov   ar.pfs = GR_SAVE_PFS             
-   br.ret.sptk     b0                  
-};;
-
-.endp __libm_error_region
-ASM_SIZE_DIRECTIVE(__libm_error_region)
-
-.type   __libm_error_support#,@function
-.global __libm_error_support#