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| 1 /* | 1 /* |
| 2 * Written by J.T. Conklin <jtc@netbsd.org>. | 2 * Written by J.T. Conklin <jtc@netbsd.org>. |
| 3 * Public domain. | 3 * Public domain. |
| 4 * | 4 * |
| 5 * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>. | 5 * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>. |
| 6 * | 6 * |
| 7 * Changed to use fyl2xp1 for values near 1, <drepper@cygnus.com>. | 7 * Changed to use fyl2xp1 for values near 1, <drepper@cygnus.com>. |
| 8 */ | 8 */ |
| 9 | 9 |
| 10 #include <machine/asm.h> | 10 #include <machine/asm.h> |
| (...skipping 37 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 48 jc 3f // in case x is NaN or ±Inf | 48 jc 3f // in case x is NaN or ±Inf |
| 49 4: fsubl MO(one) // x-1 : x : log10(2) | 49 4: fsubl MO(one) // x-1 : x : log10(2) |
| 50 fld %st // x-1 : x-1 : x : log10(2) | 50 fld %st // x-1 : x-1 : x : log10(2) |
| 51 fabs // |x-1| : x-1 : x : log10(2) | 51 fabs // |x-1| : x-1 : x : log10(2) |
| 52 fcompl MO(limit) // x-1 : x : log10(2) | 52 fcompl MO(limit) // x-1 : x : log10(2) |
| 53 fnstsw // x-1 : x : log10(2) | 53 fnstsw // x-1 : x : log10(2) |
| 54 andb $0x45, %ah | 54 andb $0x45, %ah |
| 55 jz 2f | 55 jz 2f |
| 56 fstp %st(1) // x-1 : log10(2) | 56 fstp %st(1) // x-1 : log10(2) |
| 57 fyl2xp1 // log10(x) | 57 fyl2xp1 // log10(x) |
| 58 » ret | 58 » NACLRET |
| 59 | 59 |
| 60 2: fstp %st(0) // x : log10(2) | 60 2: fstp %st(0) // x : log10(2) |
| 61 fyl2x // log10(x) | 61 fyl2x // log10(x) |
| 62 » ret | 62 » NACLRET |
| 63 | 63 |
| 64 3: jp 4b // in case x is ±Inf | 64 3: jp 4b // in case x is ±Inf |
| 65 fstp %st(1) | 65 fstp %st(1) |
| 66 fstp %st(1) | 66 fstp %st(1) |
| 67 » ret | 67 » NACLRET |
| 68 END(__ieee754_log10l) | 68 END(__ieee754_log10l) |
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Chromium Code Reviews
Issue 3539003:
Fix up RET instructions in sysdeps/i386/fpu (Closed)
Base URL: ssh://gitrw.chromium.org/nacl-glibc