diff options
Diffstat (limited to 'sysdeps/i386/fpu/e_scalbl.S')
| -rw-r--r-- | sysdeps/i386/fpu/e_scalbl.S | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sysdeps/i386/fpu/e_scalbl.S b/sysdeps/i386/fpu/e_scalbl.S index e8166fa9d5..65644f8f0e 100644 --- a/sysdeps/i386/fpu/e_scalbl.S +++ b/sysdeps/i386/fpu/e_scalbl.S @@ -58,7 +58,7 @@ ENTRY(__ieee754_scalbl) fcomp %st(2) fnstsw sahf - jne 2f + jne 4f fscale fstp %st(1) ret @@ -77,6 +77,7 @@ ENTRY(__ieee754_scalbl) fstp %st andl $0x8000, %edx andl $8, %eax + jnz 4f shrl $11, %edx addl %edx, %eax fldl MOX(zero_nan, %eax, 1) @@ -97,4 +98,11 @@ ENTRY(__ieee754_scalbl) /* The first parameter is a NaN. Return it. */ 3: fstp %st(1) ret + + /* Return NaN and raise the invalid exception. */ +4: fstp %st + fstp %st + fldz + fdiv %st + ret END(__ieee754_scalbl) |