| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | // SPDX-License-Identifier: GPL-2.0-only |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Some debug functions |
| 4 | * |
| 5 | * MIPS floating point support |
| 6 | * |
| 7 | * Copyright (C) 1994-2000 Algorithmics Ltd. |
| 8 | * |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 9 | * Nov 7, 2000 |
| 10 | * Modified to build and operate in Linux kernel environment. |
| 11 | * |
| 12 | * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com |
| 13 | * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved. |
| 14 | */ |
| 15 | |
| 16 | #include <linux/types.h> |
| 17 | #include <linux/printk.h> |
| 18 | #include "ieee754.h" |
| 19 | #include "ieee754sp.h" |
| 20 | #include "ieee754dp.h" |
| 21 | |
| 22 | union ieee754dp ieee754dp_dump(char *m, union ieee754dp x) |
| 23 | { |
| 24 | int i; |
| 25 | |
| 26 | printk("%s", m); |
| 27 | printk("<%08x,%08x>\n", (unsigned) (x.bits >> 32), |
| 28 | (unsigned) x.bits); |
| 29 | printk("\t="); |
| 30 | switch (ieee754dp_class(x)) { |
| 31 | case IEEE754_CLASS_QNAN: |
| 32 | case IEEE754_CLASS_SNAN: |
| 33 | printk("Nan %c", DPSIGN(x) ? '-' : '+'); |
| 34 | for (i = DP_FBITS - 1; i >= 0; i--) |
| 35 | printk("%c", DPMANT(x) & DP_MBIT(i) ? '1' : '0'); |
| 36 | break; |
| 37 | case IEEE754_CLASS_INF: |
| 38 | printk("%cInfinity", DPSIGN(x) ? '-' : '+'); |
| 39 | break; |
| 40 | case IEEE754_CLASS_ZERO: |
| 41 | printk("%cZero", DPSIGN(x) ? '-' : '+'); |
| 42 | break; |
| 43 | case IEEE754_CLASS_DNORM: |
| 44 | printk("%c0.", DPSIGN(x) ? '-' : '+'); |
| 45 | for (i = DP_FBITS - 1; i >= 0; i--) |
| 46 | printk("%c", DPMANT(x) & DP_MBIT(i) ? '1' : '0'); |
| 47 | printk("e%d", DPBEXP(x) - DP_EBIAS); |
| 48 | break; |
| 49 | case IEEE754_CLASS_NORM: |
| 50 | printk("%c1.", DPSIGN(x) ? '-' : '+'); |
| 51 | for (i = DP_FBITS - 1; i >= 0; i--) |
| 52 | printk("%c", DPMANT(x) & DP_MBIT(i) ? '1' : '0'); |
| 53 | printk("e%d", DPBEXP(x) - DP_EBIAS); |
| 54 | break; |
| 55 | default: |
| 56 | printk("Illegal/Unknown IEEE754 value class"); |
| 57 | } |
| 58 | printk("\n"); |
| 59 | return x; |
| 60 | } |
| 61 | |
| 62 | union ieee754sp ieee754sp_dump(char *m, union ieee754sp x) |
| 63 | { |
| 64 | int i; |
| 65 | |
| 66 | printk("%s=", m); |
| 67 | printk("<%08x>\n", (unsigned) x.bits); |
| 68 | printk("\t="); |
| 69 | switch (ieee754sp_class(x)) { |
| 70 | case IEEE754_CLASS_QNAN: |
| 71 | case IEEE754_CLASS_SNAN: |
| 72 | printk("Nan %c", SPSIGN(x) ? '-' : '+'); |
| 73 | for (i = SP_FBITS - 1; i >= 0; i--) |
| 74 | printk("%c", SPMANT(x) & SP_MBIT(i) ? '1' : '0'); |
| 75 | break; |
| 76 | case IEEE754_CLASS_INF: |
| 77 | printk("%cInfinity", SPSIGN(x) ? '-' : '+'); |
| 78 | break; |
| 79 | case IEEE754_CLASS_ZERO: |
| 80 | printk("%cZero", SPSIGN(x) ? '-' : '+'); |
| 81 | break; |
| 82 | case IEEE754_CLASS_DNORM: |
| 83 | printk("%c0.", SPSIGN(x) ? '-' : '+'); |
| 84 | for (i = SP_FBITS - 1; i >= 0; i--) |
| 85 | printk("%c", SPMANT(x) & SP_MBIT(i) ? '1' : '0'); |
| 86 | printk("e%d", SPBEXP(x) - SP_EBIAS); |
| 87 | break; |
| 88 | case IEEE754_CLASS_NORM: |
| 89 | printk("%c1.", SPSIGN(x) ? '-' : '+'); |
| 90 | for (i = SP_FBITS - 1; i >= 0; i--) |
| 91 | printk("%c", SPMANT(x) & SP_MBIT(i) ? '1' : '0'); |
| 92 | printk("e%d", SPBEXP(x) - SP_EBIAS); |
| 93 | break; |
| 94 | default: |
| 95 | printk("Illegal/Unknown IEEE754 value class"); |
| 96 | } |
| 97 | printk("\n"); |
| 98 | return x; |
| 99 | } |