forked from Minki/linux
9d5a634946
Based on 1 normalized pattern(s): this program is free software you can distribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 33 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531081038.563233189@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Some debug functions
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*
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* MIPS floating point support
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*
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* Copyright (C) 1994-2000 Algorithmics Ltd.
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*
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* Nov 7, 2000
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* Modified to build and operate in Linux kernel environment.
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*
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* Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
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* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
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*/
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#include <linux/types.h>
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#include <linux/printk.h>
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#include "ieee754.h"
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#include "ieee754sp.h"
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#include "ieee754dp.h"
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union ieee754dp ieee754dp_dump(char *m, union ieee754dp x)
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{
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int i;
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printk("%s", m);
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printk("<%08x,%08x>\n", (unsigned) (x.bits >> 32),
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(unsigned) x.bits);
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printk("\t=");
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switch (ieee754dp_class(x)) {
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case IEEE754_CLASS_QNAN:
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case IEEE754_CLASS_SNAN:
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printk("Nan %c", DPSIGN(x) ? '-' : '+');
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for (i = DP_FBITS - 1; i >= 0; i--)
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printk("%c", DPMANT(x) & DP_MBIT(i) ? '1' : '0');
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break;
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case IEEE754_CLASS_INF:
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printk("%cInfinity", DPSIGN(x) ? '-' : '+');
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break;
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case IEEE754_CLASS_ZERO:
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printk("%cZero", DPSIGN(x) ? '-' : '+');
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break;
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case IEEE754_CLASS_DNORM:
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printk("%c0.", DPSIGN(x) ? '-' : '+');
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for (i = DP_FBITS - 1; i >= 0; i--)
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printk("%c", DPMANT(x) & DP_MBIT(i) ? '1' : '0');
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printk("e%d", DPBEXP(x) - DP_EBIAS);
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break;
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case IEEE754_CLASS_NORM:
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printk("%c1.", DPSIGN(x) ? '-' : '+');
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for (i = DP_FBITS - 1; i >= 0; i--)
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printk("%c", DPMANT(x) & DP_MBIT(i) ? '1' : '0');
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printk("e%d", DPBEXP(x) - DP_EBIAS);
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break;
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default:
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printk("Illegal/Unknown IEEE754 value class");
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}
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printk("\n");
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return x;
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}
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union ieee754sp ieee754sp_dump(char *m, union ieee754sp x)
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{
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int i;
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printk("%s=", m);
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printk("<%08x>\n", (unsigned) x.bits);
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printk("\t=");
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switch (ieee754sp_class(x)) {
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case IEEE754_CLASS_QNAN:
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case IEEE754_CLASS_SNAN:
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printk("Nan %c", SPSIGN(x) ? '-' : '+');
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for (i = SP_FBITS - 1; i >= 0; i--)
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printk("%c", SPMANT(x) & SP_MBIT(i) ? '1' : '0');
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break;
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case IEEE754_CLASS_INF:
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printk("%cInfinity", SPSIGN(x) ? '-' : '+');
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break;
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case IEEE754_CLASS_ZERO:
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printk("%cZero", SPSIGN(x) ? '-' : '+');
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break;
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case IEEE754_CLASS_DNORM:
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printk("%c0.", SPSIGN(x) ? '-' : '+');
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for (i = SP_FBITS - 1; i >= 0; i--)
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printk("%c", SPMANT(x) & SP_MBIT(i) ? '1' : '0');
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printk("e%d", SPBEXP(x) - SP_EBIAS);
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break;
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case IEEE754_CLASS_NORM:
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printk("%c1.", SPSIGN(x) ? '-' : '+');
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for (i = SP_FBITS - 1; i >= 0; i--)
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printk("%c", SPMANT(x) & SP_MBIT(i) ? '1' : '0');
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printk("e%d", SPBEXP(x) - SP_EBIAS);
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break;
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default:
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printk("Illegal/Unknown IEEE754 value class");
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}
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printk("\n");
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return x;
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}
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