diff options
Diffstat (limited to 'libc/sysdeps/powerpc/powerpc64/fpu/s_llround.S')
| -rw-r--r-- | libc/sysdeps/powerpc/powerpc64/fpu/s_llround.S | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libc/sysdeps/powerpc/powerpc64/fpu/s_llround.S b/libc/sysdeps/powerpc/powerpc64/fpu/s_llround.S index 286aae3d6..54b8341b4 100644 --- a/libc/sysdeps/powerpc/powerpc64/fpu/s_llround.S +++ b/libc/sysdeps/powerpc/powerpc64/fpu/s_llround.S @@ -25,13 +25,13 @@ .LC1: /* 0.5 */ .tc FD_3fe00000_0[TC],0x3fe0000000000000 .section ".text" - + /* long long [r3] llround (double x [fp1]) - IEEE 1003.1 llround function. IEEE specifies "round to the nearest + IEEE 1003.1 llround function. IEEE specifies "round to the nearest integer value, rounding halfway cases away from zero, regardless of the current rounding mode." However PowerPC Architecture defines - "round to Nearest" as "Choose the best approximation. In case of a - tie, choose the one that is even (least significant bit o).". + "round to Nearest" as "Choose the best approximation. In case of a + tie, choose the one that is even (least significant bit o).". So we can't use the PowerPC "round to Nearest" mode. Instead we set "round toward Zero" mode and round by adding +-0.5 before rounding to the integer value. |