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| author | John Hauser <jhauser@eecs.berkeley.edu> | 2016-02-22 15:51:12 -0800 |
|---|---|---|
| committer | John Hauser <jhauser@eecs.berkeley.edu> | 2016-02-22 15:51:12 -0800 |
| commit | 45fdcf1c6583e4af380b147ac568f5aa721b7ba8 (patch) | |
| tree | 844650fe6e692766e725deaed8149125895cbc4b /source/RISCV | |
| parent | 9dc9d10297e1d43e10188b5b19e2b697216fba2b (diff) | |
| download | berkeley-softfloat-3-45fdcf1c6583e4af380b147ac568f5aa721b7ba8.zip berkeley-softfloat-3-45fdcf1c6583e4af380b147ac568f5aa721b7ba8.tar.gz berkeley-softfloat-3-45fdcf1c6583e4af380b147ac568f5aa721b7ba8.tar.bz2 | |
Added the ability to specify the result values delivered when conversions
from floating-point to an integer format raise an invalid exception.
For the provided specializations (8086 and RISC-V), changed the result
of converting a negative floating-point value to an unsigned integer
format to now be zero. (Also renamed `shiftCount' inside functions to
`shiftDist'.)
Diffstat (limited to 'source/RISCV')
| -rw-r--r-- | source/RISCV/specialize.h | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/source/RISCV/specialize.h b/source/RISCV/specialize.h index 972425d..6975f39 100644 --- a/source/RISCV/specialize.h +++ b/source/RISCV/specialize.h @@ -2,7 +2,7 @@ /*============================================================================ This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic -Package, Release 3a, by John R. Hauser. +Package, Release 3a+, by John R. Hauser. Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of California. All rights reserved. @@ -45,7 +45,29 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. /*---------------------------------------------------------------------------- | Default value for `softfloat_detectTininess'. *----------------------------------------------------------------------------*/ -#define init_detectTininess softfloat_tininess_afterRounding; +#define init_detectTininess softfloat_tininess_afterRounding + +/*---------------------------------------------------------------------------- +| The values to return on conversions to 32-bit integer format that raise an +| invalid exception. +*----------------------------------------------------------------------------*/ +#define ui32_fromPosOverflow 0xFFFFFFFF +#define ui32_fromNegOverflow 0 +#define ui32_fromNaN 0xFFFFFFFF +#define i32_fromPosOverflow 0x7FFFFFFF +#define i32_fromNegOverflow (-0x7FFFFFFF - 1) +#define i32_fromNaN 0x7FFFFFFF + +/*---------------------------------------------------------------------------- +| The values to return on conversions to 64-bit integer format that raise an +| invalid exception. +*----------------------------------------------------------------------------*/ +#define ui64_fromPosOverflow UINT64_C( 0xFFFFFFFFFFFFFFFF ) +#define ui64_fromNegOverflow 0 +#define ui64_fromNaN UINT64_C( 0xFFFFFFFFFFFFFFFF ) +#define i64_fromPosOverflow UINT64_C( 0x7FFFFFFFFFFFFFFF ) +#define i64_fromNegOverflow (-UINT64_C( 0x7FFFFFFFFFFFFFFF ) - 1) +#define i64_fromNaN UINT64_C( 0x7FFFFFFFFFFFFFFF ) /*---------------------------------------------------------------------------- | "Common NaN" structure, used to transfer NaN representations from one format |