diff options
Diffstat (limited to 'sysdeps/x86_64/fpu/e_expl.S')
| -rw-r--r-- | sysdeps/x86_64/fpu/e_expl.S | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sysdeps/x86_64/fpu/e_expl.S b/sysdeps/x86_64/fpu/e_expl.S index a919780390..36d30c26d3 100644 --- a/sysdeps/x86_64/fpu/e_expl.S +++ b/sysdeps/x86_64/fpu/e_expl.S @@ -127,9 +127,16 @@ ENTRY(IEEE754_EXPL) #endif 3: FLDLOG /* 1 log2(base) */ fmul %st(1), %st /* 1 x log2(base) */ + /* Set round-to-nearest temporarily. */ + fstcw -4(%rsp) + movl $0xf3ff, %edx + andl -4(%rsp), %edx + movl %edx, -8(%rsp) + fldcw -8(%rsp) frndint /* 1 i */ fld %st(1) /* 2 x */ frndint /* 2 xi */ + fldcw -4(%rsp) fld %st(1) /* 3 i */ fldt MO(c0) /* 4 c0 */ fld %st(2) /* 5 xi */ |