diff options
Diffstat (limited to 'arch/i386/math-emu/reg_convert.c')
| -rw-r--r-- | arch/i386/math-emu/reg_convert.c | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/arch/i386/math-emu/reg_convert.c b/arch/i386/math-emu/reg_convert.c deleted file mode 100644 index 45a2587..0000000 --- a/arch/i386/math-emu/reg_convert.c +++ /dev/null @@ -1,53 +0,0 @@ -/*---------------------------------------------------------------------------+ - | reg_convert.c | - | | - | Convert register representation. | - | | - | Copyright (C) 1992,1993,1994,1996,1997 | - | W. Metzenthen, 22 Parker St, Ormond, Vic 3163, Australia | - | E-mail billm@suburbia.net | - | | - | | - +---------------------------------------------------------------------------*/ - -#include "exception.h" -#include "fpu_emu.h" - - -int FPU_to_exp16(FPU_REG const *a, FPU_REG *x) -{ - int sign = getsign(a); - - *(long long *)&(x->sigl) = *(const long long *)&(a->sigl); - - /* Set up the exponent as a 16 bit quantity. */ - setexponent16(x, exponent(a)); - - if ( exponent16(x) == EXP_UNDER ) - { - /* The number is a de-normal or pseudodenormal. */ - /* We only deal with the significand and exponent. */ - - if (x->sigh & 0x80000000) - { - /* Is a pseudodenormal. */ - /* This is non-80486 behaviour because the number - loses its 'denormal' identity. */ - addexponent(x, 1); - } - else - { - /* Is a denormal. */ - addexponent(x, 1); - FPU_normalize_nuo(x); - } - } - - if ( !(x->sigh & 0x80000000) ) - { - EXCEPTION(EX_INTERNAL | 0x180); - } - - return sign; -} - |
