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// SPDX-License-Identifier: GPL-2.0-only
/*
* Some debug functions
*
* MIPS floating point support
*
* Copyright (C) 1994-2000 Algorithmics Ltd.
*
* Nov 7, 2000
* Modified to build and operate in Linux kernel environment.
*
* Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
*/
#include <linux/types.h>
#include <linux/printk.h>
#include "ieee754.h"
#include "ieee754sp.h"
#include "ieee754dp.h"
union ieee754dp ieee754dp_dump(char *m, union ieee754dp x)
{
int i;
printk("%s", m);
printk("<%08x,%08x>\n", (unsigned) (x.bits >> 32),
(unsigned) x.bits);
printk("\t=");
switch (ieee754dp_class(x)) {
case IEEE754_CLASS_QNAN:
case IEEE754_CLASS_SNAN:
printk("Nan %c", DPSIGN(x) ? '-' : '+');
for (i = DP_FBITS - 1; i >= 0; i--)
printk("%c", DPMANT(x) & DP_MBIT(i) ? '1' : '0');
break;
case IEEE754_CLASS_INF:
printk("%cInfinity", DPSIGN(x) ? '-' : '+');
break;
case IEEE754_CLASS_ZERO:
printk("%cZero", DPSIGN(x) ? '-' : '+');
break;
case IEEE754_CLASS_DNORM:
printk("%c0.", DPSIGN(x) ? '-' : '+');
for (i = DP_FBITS - 1; i >= 0; i--)
printk("%c", DPMANT(x) & DP_MBIT(i) ? '1' : '0');
printk("e%d", DPBEXP(x) - DP_EBIAS);
break;
case IEEE754_CLASS_NORM:
printk("%c1.", DPSIGN(x) ? '-' : '+');
for (i = DP_FBITS - 1; i >= 0; i--)
printk("%c", DPMANT(x) & DP_MBIT(i) ? '1' : '0');
printk("e%d", DPBEXP(x) - DP_EBIAS);
break;
default:
printk("Illegal/Unknown IEEE754 value class");
}
printk("\n");
return x;
}
union ieee754sp ieee754sp_dump(char *m, union ieee754sp x)
{
int i;
printk("%s=", m);
printk("<%08x>\n", (unsigned) x.bits);
printk("\t=");
switch (ieee754sp_class(x)) {
case IEEE754_CLASS_QNAN:
case IEEE754_CLASS_SNAN:
printk("Nan %c", SPSIGN(x) ? '-' : '+');
for (i = SP_FBITS - 1; i >= 0; i--)
printk("%c", SPMANT(x) & SP_MBIT(i) ? '1' : '0');
break;
case IEEE754_CLASS_INF:
printk("%cInfinity", SPSIGN(x) ? '-' : '+');
break;
case IEEE754_CLASS_ZERO:
printk("%cZero", SPSIGN(x) ? '-' : '+');
break;
case IEEE754_CLASS_DNORM:
printk("%c0.", SPSIGN(x) ? '-' : '+');
for (i = SP_FBITS - 1; i >= 0; i--)
printk("%c", SPMANT(x) & SP_MBIT(i) ? '1' : '0');
printk("e%d", SPBEXP(x) - SP_EBIAS);
break;
case IEEE754_CLASS_NORM:
printk("%c1.", SPSIGN(x) ? '-' : '+');
for (i = SP_FBITS - 1; i >= 0; i--)
printk("%c", SPMANT(x) & SP_MBIT(i) ? '1' : '0');
printk("e%d", SPBEXP(x) - SP_EBIAS);
break;
default:
printk("Illegal/Unknown IEEE754 value class");
}
printk("\n");
return x;
}
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