| 1 | /* Test instructions loading floating-point constants. */ |
| 2 | |
| 3 | #include <stdint.h> |
| 4 | #include <stdio.h> |
| 5 | |
| 6 | volatile long double ld_res; |
| 7 | |
| 8 | int main(void) |
| 9 | { |
| 10 | short cw; |
| 11 | int ret = 0; |
| 12 | |
| 13 | /* Round to nearest. */ |
| 14 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 15 | cw = (cw & ~0xc00) | 0x000; |
| 16 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 17 | __asm__ volatile ("fldl2t" : "=t" (ld_res)); |
| 18 | if (ld_res != 0x3.5269e12f346e2bf8p+0L) { |
| 19 | printf("FAIL: fldl2t N\n"); |
| 20 | ret = 1; |
| 21 | } |
| 22 | /* Round downward. */ |
| 23 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 24 | cw = (cw & ~0xc00) | 0x400; |
| 25 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 26 | __asm__ volatile ("fldl2t" : "=t" (ld_res)); |
| 27 | if (ld_res != 0x3.5269e12f346e2bf8p+0L) { |
| 28 | printf("FAIL: fldl2t D\n"); |
| 29 | ret = 1; |
| 30 | } |
| 31 | /* Round toward zero. */ |
| 32 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 33 | cw = (cw & ~0xc00) | 0xc00; |
| 34 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 35 | __asm__ volatile ("fldl2t" : "=t" (ld_res)); |
| 36 | if (ld_res != 0x3.5269e12f346e2bf8p+0L) { |
| 37 | printf("FAIL: fldl2t Z\n"); |
| 38 | ret = 1; |
| 39 | } |
| 40 | /* Round upward. */ |
| 41 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 42 | cw = (cw & ~0xc00) | 0x800; |
| 43 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 44 | __asm__ volatile ("fldl2t" : "=t" (ld_res)); |
| 45 | if (ld_res != 0x3.5269e12f346e2bfcp+0L) { |
| 46 | printf("FAIL: fldl2t U\n"); |
| 47 | ret = 1; |
| 48 | } |
| 49 | |
| 50 | /* Round to nearest. */ |
| 51 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 52 | cw = (cw & ~0xc00) | 0x000; |
| 53 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 54 | __asm__ volatile ("fldl2e" : "=t" (ld_res)); |
| 55 | if (ld_res != 0x1.71547652b82fe178p+0L) { |
| 56 | printf("FAIL: fldl2e N\n"); |
| 57 | ret = 1; |
| 58 | } |
| 59 | /* Round downward. */ |
| 60 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 61 | cw = (cw & ~0xc00) | 0x400; |
| 62 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 63 | __asm__ volatile ("fldl2e" : "=t" (ld_res)); |
| 64 | if (ld_res != 0x1.71547652b82fe176p+0L) { |
| 65 | printf("FAIL: fldl2e D\n"); |
| 66 | ret = 1; |
| 67 | } |
| 68 | /* Round toward zero. */ |
| 69 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 70 | cw = (cw & ~0xc00) | 0xc00; |
| 71 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 72 | __asm__ volatile ("fldl2e" : "=t" (ld_res)); |
| 73 | if (ld_res != 0x1.71547652b82fe176p+0L) { |
| 74 | printf("FAIL: fldl2e Z\n"); |
| 75 | ret = 1; |
| 76 | } |
| 77 | /* Round upward. */ |
| 78 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 79 | cw = (cw & ~0xc00) | 0x800; |
| 80 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 81 | __asm__ volatile ("fldl2e" : "=t" (ld_res)); |
| 82 | if (ld_res != 0x1.71547652b82fe178p+0L) { |
| 83 | printf("FAIL: fldl2e U\n"); |
| 84 | ret = 1; |
| 85 | } |
| 86 | |
| 87 | /* Round to nearest. */ |
| 88 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 89 | cw = (cw & ~0xc00) | 0x000; |
| 90 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 91 | __asm__ volatile ("fldpi" : "=t" (ld_res)); |
| 92 | if (ld_res != 0x3.243f6a8885a308d4p+0L) { |
| 93 | printf("FAIL: fldpi N\n"); |
| 94 | ret = 1; |
| 95 | } |
| 96 | /* Round downward. */ |
| 97 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 98 | cw = (cw & ~0xc00) | 0x400; |
| 99 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 100 | __asm__ volatile ("fldpi" : "=t" (ld_res)); |
| 101 | if (ld_res != 0x3.243f6a8885a308dp+0L) { |
| 102 | printf("FAIL: fldpi D\n"); |
| 103 | ret = 1; |
| 104 | } |
| 105 | /* Round toward zero. */ |
| 106 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 107 | cw = (cw & ~0xc00) | 0xc00; |
| 108 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 109 | __asm__ volatile ("fldpi" : "=t" (ld_res)); |
| 110 | if (ld_res != 0x3.243f6a8885a308dp+0L) { |
| 111 | printf("FAIL: fldpi Z\n"); |
| 112 | ret = 1; |
| 113 | } |
| 114 | /* Round upward. */ |
| 115 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 116 | cw = (cw & ~0xc00) | 0x800; |
| 117 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 118 | __asm__ volatile ("fldpi" : "=t" (ld_res)); |
| 119 | if (ld_res != 0x3.243f6a8885a308d4p+0L) { |
| 120 | printf("FAIL: fldpi U\n"); |
| 121 | ret = 1; |
| 122 | } |
| 123 | |
| 124 | /* Round to nearest. */ |
| 125 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 126 | cw = (cw & ~0xc00) | 0x000; |
| 127 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 128 | __asm__ volatile ("fldlg2" : "=t" (ld_res)); |
| 129 | if (ld_res != 0x4.d104d427de7fbcc8p-4L) { |
| 130 | printf("FAIL: fldlg2 N\n"); |
| 131 | ret = 1; |
| 132 | } |
| 133 | /* Round downward. */ |
| 134 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 135 | cw = (cw & ~0xc00) | 0x400; |
| 136 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 137 | __asm__ volatile ("fldlg2" : "=t" (ld_res)); |
| 138 | if (ld_res != 0x4.d104d427de7fbccp-4L) { |
| 139 | printf("FAIL: fldlg2 D\n"); |
| 140 | ret = 1; |
| 141 | } |
| 142 | /* Round toward zero. */ |
| 143 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 144 | cw = (cw & ~0xc00) | 0xc00; |
| 145 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 146 | __asm__ volatile ("fldlg2" : "=t" (ld_res)); |
| 147 | if (ld_res != 0x4.d104d427de7fbccp-4L) { |
| 148 | printf("FAIL: fldlg2 Z\n"); |
| 149 | ret = 1; |
| 150 | } |
| 151 | /* Round upward. */ |
| 152 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 153 | cw = (cw & ~0xc00) | 0x800; |
| 154 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 155 | __asm__ volatile ("fldlg2" : "=t" (ld_res)); |
| 156 | if (ld_res != 0x4.d104d427de7fbcc8p-4L) { |
| 157 | printf("FAIL: fldlg2 U\n"); |
| 158 | ret = 1; |
| 159 | } |
| 160 | |
| 161 | /* Round to nearest. */ |
| 162 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 163 | cw = (cw & ~0xc00) | 0x000; |
| 164 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 165 | __asm__ volatile ("fldln2" : "=t" (ld_res)); |
| 166 | if (ld_res != 0xb.17217f7d1cf79acp-4L) { |
| 167 | printf("FAIL: fldln2 N\n"); |
| 168 | ret = 1; |
| 169 | } |
| 170 | /* Round downward. */ |
| 171 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 172 | cw = (cw & ~0xc00) | 0x400; |
| 173 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 174 | __asm__ volatile ("fldln2" : "=t" (ld_res)); |
| 175 | if (ld_res != 0xb.17217f7d1cf79abp-4L) { |
| 176 | printf("FAIL: fldln2 D\n"); |
| 177 | ret = 1; |
| 178 | } |
| 179 | /* Round toward zero. */ |
| 180 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 181 | cw = (cw & ~0xc00) | 0xc00; |
| 182 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 183 | __asm__ volatile ("fldln2" : "=t" (ld_res)); |
| 184 | if (ld_res != 0xb.17217f7d1cf79abp-4L) { |
| 185 | printf("FAIL: fldln2 Z\n"); |
| 186 | ret = 1; |
| 187 | } |
| 188 | /* Round upward. */ |
| 189 | __asm__ volatile ("fnstcw %0" : "=m" (cw)); |
| 190 | cw = (cw & ~0xc00) | 0x800; |
| 191 | __asm__ volatile ("fldcw %0" : : "m" (cw)); |
| 192 | __asm__ volatile ("fldln2" : "=t" (ld_res)); |
| 193 | if (ld_res != 0xb.17217f7d1cf79acp-4L) { |
| 194 | printf("FAIL: fldln2 U\n"); |
| 195 | ret = 1; |
| 196 | } |
| 197 | |
| 198 | return ret; |
| 199 | } |