forked from Github_Repos/cvw
		
	
		
			
				
	
	
		
			665 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			665 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| 
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| /*============================================================================
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| 
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| This C source file is part of TestFloat, Release 3e, a package of programs for
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| testing the correctness of floating-point arithmetic complying with the IEEE
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| Standard for Floating-Point, by John R. Hauser.
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| 
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| Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
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| All rights reserved.
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| 
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| Redistribution and use in source and binary forms, with or without
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| modification, are permitted provided that the following conditions are met:
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| 
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|  1. Redistributions of source code must retain the above copyright notice,
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|     this list of conditions, and the following disclaimer.
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| 
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|  2. Redistributions in binary form must reproduce the above copyright notice,
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|     this list of conditions, and the following disclaimer in the documentation
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|     and/or other materials provided with the distribution.
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| 
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|  3. Neither the name of the University nor the names of its contributors may
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|     be used to endorse or promote products derived from this software without
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|     specific prior written permission.
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| 
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| THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
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| EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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| WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
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| DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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| DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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| LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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| ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 
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| =============================================================================*/
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| 
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| #include <stdbool.h>
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| #include <stdint.h>
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| #include "platform.h"
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| #include "random.h"
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| #include "softfloat.h"
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| #include "genCases.h"
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| 
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| struct sequence {
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|     int expNum, term1Num, term2Num;
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|     bool done;
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| };
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| 
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| union ui32_f32 { uint32_t ui; float32_t f; };
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| 
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| enum {
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|     f32NumQIn  = 22,
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|     f32NumQOut = 50,
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|     f32NumP1   =  4,
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|     f32NumP2   = 88
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| };
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| static const uint32_t f32QIn[f32NumQIn] = {
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|     0x00000000,    /* positive, subnormal       */
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|     0x00800000,    /* positive, -126            */
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|     0x33800000,    /* positive,  -24            */
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|     0x3E800000,    /* positive,   -2            */
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|     0x3F000000,    /* positive,   -1            */
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|     0x3F800000,    /* positive,    0            */
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|     0x40000000,    /* positive,    1            */
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|     0x40800000,    /* positive,    2            */
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|     0x4B800000,    /* positive,   24            */
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|     0x7F000000,    /* positive,  127            */
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|     0x7F800000,    /* positive, infinity or NaN */
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|     0x80000000,    /* negative, subnormal       */
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|     0x80800000,    /* negative, -126            */
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|     0xB3800000,    /* negative,  -24            */
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|     0xBE800000,    /* negative,   -2            */
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|     0xBF000000,    /* negative,   -1            */
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|     0xBF800000,    /* negative,    0            */
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|     0xC0000000,    /* negative,    1            */
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|     0xC0800000,    /* negative,    2            */
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|     0xCB800000,    /* negative,   24            */
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|     0xFE800000,    /* negative,  126            */
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|     0xFF800000     /* negative, infinity or NaN */
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| };
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| static const uint32_t f32QOut[f32NumQOut] = {
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|     0x00000000,    /* positive, subnormal       */
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|     0x00800000,    /* positive, -126            */
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|     0x01000000,    /* positive, -125            */
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|     0x33800000,    /* positive,  -24            */
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|     0x3D800000,    /* positive,   -4            */
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|     0x3E000000,    /* positive,   -3            */
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|     0x3E800000,    /* positive,   -2            */
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|     0x3F000000,    /* positive,   -1            */
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|     0x3F800000,    /* positive,    0            */
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|     0x40000000,    /* positive,    1            */
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|     0x40800000,    /* positive,    2            */
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|     0x41000000,    /* positive,    3            */
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|     0x41800000,    /* positive,    4            */
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|     0x4B800000,    /* positive,   24            */
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|     0x4E000000,    /* positive,   29            */
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|     0x4E800000,    /* positive,   30            */
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|     0x4F000000,    /* positive,   31            */
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|     0x4F800000,    /* positive,   32            */
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|     0x5E000000,    /* positive,   61            */
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|     0x5E800000,    /* positive,   62            */
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|     0x5F000000,    /* positive,   63            */
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|     0x5F800000,    /* positive,   64            */
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|     0x7E800000,    /* positive,  126            */
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|     0x7F000000,    /* positive,  127            */
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|     0x7F800000,    /* positive, infinity or NaN */
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|     0x80000000,    /* negative, subnormal       */
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|     0x80800000,    /* negative, -126            */
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|     0x81000000,    /* negative, -125            */
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|     0xB3800000,    /* negative,  -24            */
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|     0xBD800000,    /* negative,   -4            */
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|     0xBE000000,    /* negative,   -3            */
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|     0xBE800000,    /* negative,   -2            */
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|     0xBF000000,    /* negative,   -1            */
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|     0xBF800000,    /* negative,    0            */
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|     0xC0000000,    /* negative,    1            */
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|     0xC0800000,    /* negative,    2            */
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|     0xC1000000,    /* negative,    3            */
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|     0xC1800000,    /* negative,    4            */
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|     0xCB800000,    /* negative,   24            */
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|     0xCE000000,    /* negative,   29            */
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|     0xCE800000,    /* negative,   30            */
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|     0xCF000000,    /* negative,   31            */
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|     0xCF800000,    /* negative,   32            */
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|     0xDE000000,    /* negative,   61            */
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|     0xDE800000,    /* negative,   62            */
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|     0xDF000000,    /* negative,   63            */
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|     0xDF800000,    /* negative,   64            */
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|     0xFE800000,    /* negative,  126            */
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|     0xFF000000,    /* negative,  127            */
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|     0xFF800000     /* negative, infinity or NaN */
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| };
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| static const uint32_t f32P1[f32NumP1] = {
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|     0x00000000,
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|     0x00000001,
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|     0x007FFFFF,
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|     0x007FFFFE
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| };
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| static const uint32_t f32P2[f32NumP2] = {
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|     0x00000000,
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|     0x00000001,
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|     0x00000002,
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|     0x00000004,
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|     0x00000008,
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|     0x00000010,
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|     0x00000020,
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|     0x00000040,
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|     0x00000080,
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|     0x00000100,
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|     0x00000200,
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|     0x00000400,
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|     0x00000800,
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|     0x00001000,
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|     0x00002000,
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|     0x00004000,
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|     0x00008000,
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|     0x00010000,
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|     0x00020000,
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|     0x00040000,
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|     0x00080000,
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|     0x00100000,
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|     0x00200000,
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|     0x00400000,
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|     0x00600000,
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|     0x00700000,
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|     0x00780000,
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|     0x007C0000,
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|     0x007E0000,
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|     0x007F0000,
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|     0x007F8000,
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|     0x007FC000,
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|     0x007FE000,
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|     0x007FF000,
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|     0x007FF800,
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|     0x007FFC00,
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|     0x007FFE00,
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|     0x007FFF00,
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|     0x007FFF80,
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|     0x007FFFC0,
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|     0x007FFFE0,
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|     0x007FFFF0,
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|     0x007FFFF8,
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|     0x007FFFFC,
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|     0x007FFFFE,
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|     0x007FFFFF,
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|     0x007FFFFD,
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|     0x007FFFFB,
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|     0x007FFFF7,
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|     0x007FFFEF,
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|     0x007FFFDF,
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|     0x007FFFBF,
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|     0x007FFF7F,
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|     0x007FFEFF,
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|     0x007FFDFF,
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|     0x007FFBFF,
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|     0x007FF7FF,
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|     0x007FEFFF,
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|     0x007FDFFF,
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|     0x007FBFFF,
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|     0x007F7FFF,
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|     0x007EFFFF,
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|     0x007DFFFF,
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|     0x007BFFFF,
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|     0x0077FFFF,
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|     0x006FFFFF,
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|     0x005FFFFF,
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|     0x003FFFFF,
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|     0x001FFFFF,
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|     0x000FFFFF,
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|     0x0007FFFF,
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|     0x0003FFFF,
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|     0x0001FFFF,
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|     0x0000FFFF,
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|     0x00007FFF,
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|     0x00003FFF,
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|     0x00001FFF,
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|     0x00000FFF,
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|     0x000007FF,
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|     0x000003FF,
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|     0x000001FF,
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|     0x000000FF,
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|     0x0000007F,
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|     0x0000003F,
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|     0x0000001F,
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|     0x0000000F,
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|     0x00000007,
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|     0x00000003
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| };
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| 
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| static const uint_fast64_t f32NumQInP1 = f32NumQIn * f32NumP1;
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| static const uint_fast64_t f32NumQOutP1 = f32NumQOut * f32NumP1;
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| 
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| static float32_t f32NextQInP1( struct sequence *sequencePtr )
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| {
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|     int expNum, sigNum;
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|     union ui32_f32 uZ;
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| 
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|     expNum = sequencePtr->expNum;
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|     sigNum = sequencePtr->term1Num;
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|     uZ.ui = f32QIn[expNum] | f32P1[sigNum];
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|     ++sigNum;
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|     if ( f32NumP1 <= sigNum ) {
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|         sigNum = 0;
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|         ++expNum;
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|         if ( f32NumQIn <= expNum ) {
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|             expNum = 0;
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|             sequencePtr->done = true;
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|         }
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|         sequencePtr->expNum = expNum;
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|     }
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|     sequencePtr->term1Num = sigNum;
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|     return uZ.f;
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| 
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| }
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| 
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| static float32_t f32NextQOutP1( struct sequence *sequencePtr )
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| {
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|     int expNum, sigNum;
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|     union ui32_f32 uZ;
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| 
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|     expNum = sequencePtr->expNum;
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|     sigNum = sequencePtr->term1Num;
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|     uZ.ui = f32QOut[expNum] | f32P1[sigNum];
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|     ++sigNum;
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|     if ( f32NumP1 <= sigNum ) {
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|         sigNum = 0;
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|         ++expNum;
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|         if ( f32NumQOut <= expNum ) {
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|             expNum = 0;
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|             sequencePtr->done = true;
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|         }
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|         sequencePtr->expNum = expNum;
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|     }
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|     sequencePtr->term1Num = sigNum;
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|     return uZ.f;
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| 
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| }
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| 
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| static const uint_fast64_t f32NumQInP2 = f32NumQIn * f32NumP2;
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| static const uint_fast64_t f32NumQOutP2 = f32NumQOut * f32NumP2;
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| 
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| static float32_t f32NextQInP2( struct sequence *sequencePtr )
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| {
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|     int expNum, sigNum;
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|     union ui32_f32 uZ;
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| 
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|     expNum = sequencePtr->expNum;
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|     sigNum = sequencePtr->term1Num;
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|     uZ.ui = f32QIn[expNum] | f32P2[sigNum];
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|     ++sigNum;
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|     if ( f32NumP2 <= sigNum ) {
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|         sigNum = 0;
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|         ++expNum;
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|         if ( f32NumQIn <= expNum ) {
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|             expNum = 0;
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|             sequencePtr->done = true;
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|         }
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|         sequencePtr->expNum = expNum;
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|     }
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|     sequencePtr->term1Num = sigNum;
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|     return uZ.f;
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| 
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| }
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| 
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| static float32_t f32NextQOutP2( struct sequence *sequencePtr )
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| {
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|     int expNum, sigNum;
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|     union ui32_f32 uZ;
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| 
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|     expNum = sequencePtr->expNum;
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|     sigNum = sequencePtr->term1Num;
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|     uZ.ui = f32QOut[expNum] | f32P2[sigNum];
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|     ++sigNum;
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|     if ( f32NumP2 <= sigNum ) {
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|         sigNum = 0;
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|         ++expNum;
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|         if ( f32NumQOut <= expNum ) {
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|             expNum = 0;
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|             sequencePtr->done = true;
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|         }
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|         sequencePtr->expNum = expNum;
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|     }
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|     sequencePtr->term1Num = sigNum;
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|     return uZ.f;
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| 
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| }
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| 
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| static float32_t f32RandomQOutP3( void )
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| {
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|     union ui32_f32 uZ;
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| 
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|     uZ.ui =
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|           f32QOut[randomN_ui8( f32NumQOut )]
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|         | ((f32P2[randomN_ui8( f32NumP2 )] + f32P2[randomN_ui8( f32NumP2 )])
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|                & 0x007FFFFF);
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|     return uZ.f;
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| 
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| }
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| 
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| static float32_t f32RandomQOutPInf( void )
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| {
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|     union ui32_f32 uZ;
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| 
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|     uZ.ui = f32QOut[randomN_ui8( f32NumQOut )] | (random_ui32() & 0x007FFFFF);
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|     return uZ.f;
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| 
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| }
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| 
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| enum { f32NumQInfWeightMasks = 7 };
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| static const uint32_t f32QInfWeightMasks[f32NumQInfWeightMasks] = {
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|     0xFF800000,
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|     0xFF800000,
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|     0xBF800000,
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|     0x9F800000,
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|     0x8F800000,
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|     0x87800000,
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|     0x83800000
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| };
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| static const uint32_t f32QInfWeightOffsets[f32NumQInfWeightMasks] = {
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|     0x00000000,
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|     0x00000000,
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|     0x20000000,
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|     0x30000000,
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|     0x38000000,
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|     0x3C000000,
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|     0x3E000000
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| };
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| 
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| static float32_t f32RandomQInfP3( void )
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| {
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|     int weightMaskNum;
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|     union ui32_f32 uZ;
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| 
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|     weightMaskNum = randomN_ui8( f32NumQInfWeightMasks );
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|     uZ.ui =
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|           (((uint_fast32_t) random_ui16()<<16
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|                 & f32QInfWeightMasks[weightMaskNum])
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|                + f32QInfWeightOffsets[weightMaskNum])
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|         | ((f32P2[randomN_ui8( f32NumP2 )] + f32P2[randomN_ui8( f32NumP2 )])
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|                & 0x007FFFFF);
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|     return uZ.f;
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| 
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| }
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| 
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| static float32_t f32RandomQInfPInf( void )
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| {
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|     int weightMaskNum;
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|     union ui32_f32 uZ;
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| 
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|     weightMaskNum = randomN_ui8( f32NumQInfWeightMasks );
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|     uZ.ui =
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|         (random_ui32() & (f32QInfWeightMasks[weightMaskNum] | 0x007FFFFF))
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|             + f32QInfWeightOffsets[weightMaskNum];
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|     return uZ.f;
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| 
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| }
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| 
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| static float32_t f32Random( void )
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| {
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| 
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|     switch ( random_ui8() & 7 ) {
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|      case 0:
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|      case 1:
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|      case 2:
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|         return f32RandomQOutP3();
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|      case 3:
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|         return f32RandomQOutPInf();
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|      case 4:
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|      case 5:
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|      case 6:
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|         return f32RandomQInfP3();
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|      case 7:
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|         return f32RandomQInfPInf();
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|     }
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| 
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| }
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| 
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| static struct sequence sequenceA, sequenceB, sequenceC;
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| static float32_t currentA, currentB, currentC;
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| static int subcase;
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| 
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| float32_t genCases_f32_a, genCases_f32_b, genCases_f32_c;
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| 
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| void genCases_f32_a_init( void )
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| {
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| 
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|     sequenceA.expNum = 0;
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|     sequenceA.term1Num = 0;
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|     sequenceA.term2Num = 0;
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|     sequenceA.done = false;
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|     subcase = 0;
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|     genCases_total =
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|         (genCases_level == 1) ? 3 * f32NumQOutP1 : 2 * f32NumQOutP2;
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|     genCases_done = false;
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| 
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| }
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| 
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| void genCases_f32_a_next( void )
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| {
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| 
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|     if ( genCases_level == 1 ) {
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|         switch ( subcase ) {
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|          case 0:
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|          case 1:
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|             genCases_f32_a = f32Random();
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|             break;
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|          case 2:
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|             genCases_f32_a = f32NextQOutP1( &sequenceA );
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|             genCases_done = sequenceA.done;
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|             subcase = -1;
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|             break;
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|         }
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|     } else {
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|         switch ( subcase ) {
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|          case 0:
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|             genCases_f32_a = f32Random();
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|             break;
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|          case 1:
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|             genCases_f32_a = f32NextQOutP2( &sequenceA );
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|             genCases_done = sequenceA.done;
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|             subcase = -1;
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|             break;
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|         }
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|     }
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|     ++subcase;
 | |
| 
 | |
| }
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| 
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| void genCases_f32_ab_init( void )
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| {
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| 
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|     sequenceA.expNum = 0;
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|     sequenceA.term1Num = 0;
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|     sequenceA.term2Num = 0;
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|     sequenceA.done = false;
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|     sequenceB.expNum = 0;
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|     sequenceB.term1Num = 0;
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|     sequenceB.term2Num = 0;
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|     sequenceB.done = false;
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|     subcase = 0;
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|     if ( genCases_level == 1 ) {
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|         genCases_total = 6 * f32NumQInP1 * f32NumQInP1;
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|         currentA = f32NextQInP1( &sequenceA );
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|     } else {
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|         genCases_total = 2 * f32NumQInP2 * f32NumQInP2;
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|         currentA = f32NextQInP2( &sequenceA );
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|     }
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|     genCases_done = false;
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| 
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| }
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| 
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| void genCases_f32_ab_next( void )
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| {
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| 
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|     if ( genCases_level == 1 ) {
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|         switch ( subcase ) {
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|          case 0:
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|             if ( sequenceB.done ) {
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|                 sequenceB.done = false;
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|                 currentA = f32NextQInP1( &sequenceA );
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|             }
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|             currentB = f32NextQInP1( &sequenceB );
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|          case 2:
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|          case 4:
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|             genCases_f32_a = f32Random();
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|             genCases_f32_b = f32Random();
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|             break;
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|          case 1:
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|             genCases_f32_a = currentA;
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|             genCases_f32_b = f32Random();
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|             break;
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|          case 3:
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|             genCases_f32_a = f32Random();
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|             genCases_f32_b = currentB;
 | |
|             break;
 | |
|          case 5:
 | |
|             genCases_f32_a = currentA;
 | |
|             genCases_f32_b = currentB;
 | |
|             genCases_done = sequenceA.done & sequenceB.done;
 | |
|             subcase = -1;
 | |
|             break;
 | |
|         }
 | |
|     } else {
 | |
|         switch ( subcase ) {
 | |
|          case 0:
 | |
|             genCases_f32_a = f32Random();
 | |
|             genCases_f32_b = f32Random();
 | |
|             break;
 | |
|          case 1:
 | |
|             if ( sequenceB.done ) {
 | |
|                 sequenceB.done = false;
 | |
|                 currentA = f32NextQInP2( &sequenceA );
 | |
|             }
 | |
|             genCases_f32_a = currentA;
 | |
|             genCases_f32_b = f32NextQInP2( &sequenceB );
 | |
|             genCases_done = sequenceA.done & sequenceB.done;
 | |
|             subcase = -1;
 | |
|             break;
 | |
|         }
 | |
|     }
 | |
|     ++subcase;
 | |
| 
 | |
| }
 | |
| 
 | |
| void genCases_f32_abc_init( void )
 | |
| {
 | |
| 
 | |
|     sequenceA.expNum = 0;
 | |
|     sequenceA.term1Num = 0;
 | |
|     sequenceA.term2Num = 0;
 | |
|     sequenceA.done = false;
 | |
|     sequenceB.expNum = 0;
 | |
|     sequenceB.term1Num = 0;
 | |
|     sequenceB.term2Num = 0;
 | |
|     sequenceB.done = false;
 | |
|     sequenceC.expNum = 0;
 | |
|     sequenceC.term1Num = 0;
 | |
|     sequenceC.term2Num = 0;
 | |
|     sequenceC.done = false;
 | |
|     subcase = 0;
 | |
|     if ( genCases_level == 1 ) {
 | |
|         genCases_total = 9 * f32NumQInP1 * f32NumQInP1 * f32NumQInP1;
 | |
|         currentA = f32NextQInP1( &sequenceA );
 | |
|         currentB = f32NextQInP1( &sequenceB );
 | |
|     } else {
 | |
|         genCases_total = 2 * f32NumQInP2 * f32NumQInP2 * f32NumQInP2;
 | |
|         currentA = f32NextQInP2( &sequenceA );
 | |
|         currentB = f32NextQInP2( &sequenceB );
 | |
|     }
 | |
|     genCases_done = false;
 | |
| 
 | |
| }
 | |
| 
 | |
| void genCases_f32_abc_next( void )
 | |
| {
 | |
| 
 | |
|     if ( genCases_level == 1 ) {
 | |
|         switch ( subcase ) {
 | |
|          case 0:
 | |
|             if ( sequenceC.done ) {
 | |
|                 sequenceC.done = false;
 | |
|                 if ( sequenceB.done ) {
 | |
|                     sequenceB.done = false;
 | |
|                     currentA = f32NextQInP1( &sequenceA );
 | |
|                 }
 | |
|                 currentB = f32NextQInP1( &sequenceB );
 | |
|             }
 | |
|             currentC = f32NextQInP1( &sequenceC );
 | |
|             genCases_f32_a = f32Random();
 | |
|             genCases_f32_b = f32Random();
 | |
|             genCases_f32_c = currentC;
 | |
|             break;
 | |
|          case 1:
 | |
|             genCases_f32_a = currentA;
 | |
|             genCases_f32_b = currentB;
 | |
|             genCases_f32_c = f32Random();
 | |
|             break;
 | |
|          case 2:
 | |
|             genCases_f32_a = f32Random();
 | |
|             genCases_f32_b = f32Random();
 | |
|             genCases_f32_c = f32Random();
 | |
|             break;
 | |
|          case 3:
 | |
|             genCases_f32_a = f32Random();
 | |
|             genCases_f32_b = currentB;
 | |
|             genCases_f32_c = currentC;
 | |
|             break;
 | |
|          case 4:
 | |
|             genCases_f32_a = currentA;
 | |
|             genCases_f32_b = f32Random();
 | |
|             genCases_f32_c = f32Random();
 | |
|             break;
 | |
|          case 5:
 | |
|             genCases_f32_a = f32Random();
 | |
|             genCases_f32_b = currentB;
 | |
|             genCases_f32_c = f32Random();
 | |
|             break;
 | |
|          case 6:
 | |
|             genCases_f32_a = currentA;
 | |
|             genCases_f32_b = f32Random();
 | |
|             genCases_f32_c = currentC;
 | |
|             break;
 | |
|          case 7:
 | |
|             genCases_f32_a = f32Random();
 | |
|             genCases_f32_b = f32Random();
 | |
|             genCases_f32_c = f32Random();
 | |
|             break;
 | |
|          case 8:
 | |
|             genCases_f32_a = currentA;
 | |
|             genCases_f32_b = currentB;
 | |
|             genCases_f32_c = currentC;
 | |
|             genCases_done = sequenceA.done & sequenceB.done & sequenceC.done;
 | |
|             subcase = -1;
 | |
|             break;
 | |
|         }
 | |
|     } else {
 | |
|         switch ( subcase ) {
 | |
|          case 0:
 | |
|             genCases_f32_a = f32Random();
 | |
|             genCases_f32_b = f32Random();
 | |
|             genCases_f32_c = f32Random();
 | |
|             break;
 | |
|          case 1:
 | |
|             if ( sequenceC.done ) {
 | |
|                 sequenceC.done = false;
 | |
|                 if ( sequenceB.done ) {
 | |
|                     sequenceB.done = false;
 | |
|                     currentA = f32NextQInP2( &sequenceA );
 | |
|                 }
 | |
|                 currentB = f32NextQInP2( &sequenceB );
 | |
|             }
 | |
|             genCases_f32_a = currentA;
 | |
|             genCases_f32_b = currentB;
 | |
|             genCases_f32_c = f32NextQInP2( &sequenceC );
 | |
|             genCases_done = sequenceA.done & sequenceB.done & sequenceC.done;
 | |
|             subcase = -1;
 | |
|             break;
 | |
|         }
 | |
|     }
 | |
|     ++subcase;
 | |
| 
 | |
| }
 | |
| 
 |