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softfloat: Introduce Floatx80RoundPrec

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Use an enumeration instead of raw 32/64/80 values.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2020-11-21 09:33:36 -08:00
parent d6e1f0cd59
commit 8da5f1dbb0
9 changed files with 182 additions and 134 deletions
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41
linux-user/arm/nwfpe/fpa11.c
View file

@ -97,37 +97,38 @@ void SetRoundingMode(const unsigned int opcode)
void SetRoundingPrecision(const unsigned int opcode)
{
int rounding_precision;
FPA11 *fpa11 = GET_FPA11();
FloatX80RoundPrec rounding_precision;
FPA11 *fpa11 = GET_FPA11();
#ifdef MAINTAIN_FPCR
fpa11->fpcr &= ~MASK_ROUNDING_PRECISION;
fpa11->fpcr &= ~MASK_ROUNDING_PRECISION;
#endif
switch (opcode & MASK_ROUNDING_PRECISION)
{
case ROUND_SINGLE:
rounding_precision = 32;
switch (opcode & MASK_ROUNDING_PRECISION) {
case ROUND_SINGLE:
rounding_precision = floatx80_precision_s;
#ifdef MAINTAIN_FPCR
fpa11->fpcr |= ROUND_SINGLE;
fpa11->fpcr |= ROUND_SINGLE;
#endif
break;
break;
case ROUND_DOUBLE:
rounding_precision = 64;
case ROUND_DOUBLE:
rounding_precision = floatx80_precision_d;
#ifdef MAINTAIN_FPCR
fpa11->fpcr |= ROUND_DOUBLE;
fpa11->fpcr |= ROUND_DOUBLE;
#endif
break;
break;
case ROUND_EXTENDED:
rounding_precision = 80;
case ROUND_EXTENDED:
rounding_precision = floatx80_precision_x;
#ifdef MAINTAIN_FPCR
fpa11->fpcr |= ROUND_EXTENDED;
fpa11->fpcr |= ROUND_EXTENDED;
#endif
break;
break;
default: rounding_precision = 80;
}
set_floatx80_rounding_precision(rounding_precision, &fpa11->fp_status);
default:
rounding_precision = floatx80_precision_x;
break;
}
set_floatx80_rounding_precision(rounding_precision, &fpa11->fp_status);
}
/* Emulate the instruction in the opcode. */