diff options
Diffstat (limited to 'sysdeps/x86_64/fpu/e_scalbl.S')
| -rw-r--r-- | sysdeps/x86_64/fpu/e_scalbl.S | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/sysdeps/x86_64/fpu/e_scalbl.S b/sysdeps/x86_64/fpu/e_scalbl.S deleted file mode 100644 index 2982dc3b9e..0000000000 --- a/sysdeps/x86_64/fpu/e_scalbl.S +++ /dev/null @@ -1,89 +0,0 @@ -/* - * Written by J.T. Conklin <jtc@netbsd.org>. - * Public domain. - * - * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>. - * Adapted for x86-64 by Andreas Jaeger <aj@suse.de> - * - * Correct handling of y==-inf <drepper@gnu> - */ - -#include <machine/asm.h> - - .section .rodata - - .align ALIGNARG(4) - .type zero_nan,@object -zero_nan: - .double 0.0 -nan: .byte 0, 0, 0, 0, 0, 0, 0xff, 0x7f - .byte 0, 0, 0, 0, 0, 0, 0, 0x80 - .byte 0, 0, 0, 0, 0, 0, 0xff, 0x7f - ASM_SIZE_DIRECTIVE(zero_nan) - - -#ifdef PIC -# define MO(op) op##(%rip) -#else -# define MO(op) op -#endif - - .text -ENTRY(__ieee754_scalbl) - fldt 24(%rsp) - fxam - fnstsw - fldt 8(%rsp) - andl $0x4700, %eax - cmpl $0x0700, %eax - je 1f - andl $0x4500, %eax - cmpl $0x0100, %eax - je 2f - fxam - fnstsw - andl $0x4500, %eax - cmpl $0x0100, %eax - je 2f - fld %st(1) - frndint - fcomip %st(2), %st - jne 4f - fscale - fstp %st(1) - ret - - /* y is -inf */ -1: fxam - fnstsw - movl 16(%rsp), %edx - shrl $5, %eax - fstp %st - fstp %st - andl $0x8000, %edx - andl $0x0228, %eax - cmpl $0x0028, %eax - je 4f - andl $8, %eax - shrl $11, %edx - addl %edx, %eax -#ifdef PIC - lea zero_nan(%rip),%rdx - fldl (%rdx,%rax,1) -#else - fldl zero_nan(%rax, 1) -#endif - ret - - /* The result is NaN; raise an exception for sNaN arguments. */ -2: faddp - ret - - /* Return NaN and raise the invalid exception. */ -4: fstp %st - fstp %st - fldz - fdiv %st - ret -END(__ieee754_scalbl) -strong_alias (__ieee754_scalbl, __scalbl_finite) |