diff options
Diffstat (limited to 'jslinux-2019-12-21/tinyemu-2019-12-21/softfp.c')
| -rw-r--r-- | jslinux-2019-12-21/tinyemu-2019-12-21/softfp.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/jslinux-2019-12-21/tinyemu-2019-12-21/softfp.c b/jslinux-2019-12-21/tinyemu-2019-12-21/softfp.c new file mode 100644 index 0000000..2a1aad0 --- /dev/null +++ b/jslinux-2019-12-21/tinyemu-2019-12-21/softfp.c @@ -0,0 +1,87 @@ +/* + * SoftFP Library + * + * Copyright (c) 2016 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#include <stdlib.h> +#include <stdio.h> +#include <assert.h> +#include <string.h> + +#include "cutils.h" +#include "softfp.h" + +static inline int clz32(uint32_t a) +{ + int r; + if (a == 0) { + r = 32; + } else { + r = __builtin_clz(a); + } + return r; +} + +static inline int clz64(uint64_t a) +{ + int r; + if (a == 0) { + r = 64; + } else + { + r = __builtin_clzll(a); + } + return r; +} + +#ifdef HAVE_INT128 +static inline int clz128(uint128_t a) +{ + int r; + if (a == 0) { + r = 128; + } else + { + uint64_t ah, al; + ah = a >> 64; + al = a; + if (ah != 0) + r = __builtin_clzll(ah); + else + r = __builtin_clzll(al) + 64; + } + return r; +} +#endif + +#define F_SIZE 32 +#include "softfp_template.h" + +#define F_SIZE 64 +#include "softfp_template.h" + +#ifdef HAVE_INT128 + +#define F_SIZE 128 +#include "softfp_template.h" + +#endif + |
