In IEEE 754 math, the arithmetic, rounding, and conversion instructions produce
an intermediate result that can be regarded as having infinite precision and
unbounded exponent range. When the final result has its fraction part
incremented is when the Fraction Rounded bit is set.
This patch implements the PowerPC FPSCR flag Fraction Rounded.
Note: there are still functions in softfloat that need to be adjusted so that
float_flag_rounded is fully supported. These include round_to_int(), and all
legacy roundAndPack* functions. So basically anywhere that sets the
float_flag_inexact.
John Arbuckle (2):
Implement Floating Point flag Fraction Rounded
Implement the PowerPC Floating Point Status and Control Register
Fraction Rounded bit
fpu/softfloat.c | 15 ++++++++++++---
include/fpu/softfloat-types.h | 1 +
target/ppc/fpu_helper.c | 4 ++++
3 files changed, 17 insertions(+), 3 deletions(-)
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2.14.3 (Apple Git-98)
