diff options
Diffstat (limited to 'sysdeps/i386/fpu/s_frexpf.S')
| -rw-r--r-- | sysdeps/i386/fpu/s_frexpf.S | 33 |
1 files changed, 22 insertions, 11 deletions
diff --git a/sysdeps/i386/fpu/s_frexpf.S b/sysdeps/i386/fpu/s_frexpf.S index 1021b97aee..5c8c8ee6b8 100644 --- a/sysdeps/i386/fpu/s_frexpf.S +++ b/sysdeps/i386/fpu/s_frexpf.S @@ -1,5 +1,5 @@ /* ix87 specific frexp implementation for float. - Copyright (C) 1997 Free Software Foundation, Inc. + Copyright (C) 1997, 2000 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. @@ -19,6 +19,8 @@ Boston, MA 02111-1307, USA. */ #include <machine/asm.h> +#include "bp-sym.h" +#include "bp-asm.h" #ifdef __ELF__ .section .rodata @@ -37,9 +39,15 @@ two25: .byte 0, 0, 0, 0x4c #define MO(op) op #endif +#define PARMS LINKAGE /* no space for saved regs */ +#define VAL PARMS +#define EXPP VAL+4 + .text -ENTRY(__frexpf) - movl 4(%esp), %eax +ENTRY (BP_SYM (__frexpf)) + ENTER + + movl VAL(%esp), %eax xorl %ecx, %ecx movl %eax, %edx andl $0x7fffffff, %eax @@ -50,7 +58,7 @@ ENTRY(__frexpf) cmpl $0x00800000, %eax jae 2f - flds 4(%esp) + flds VAL(%esp) #ifdef PIC call 3f 3: popl %edx @@ -58,8 +66,8 @@ ENTRY(__frexpf) #endif fmuls MO(two25) movl $-25, %ecx - fstps 4(%esp) - movl 4(%esp), %eax + fstps VAL(%esp) + movl VAL(%esp), %eax movl %eax, %edx andl $0x7fffffff, %eax @@ -68,13 +76,16 @@ ENTRY(__frexpf) subl $126, %eax orl $0x3f000000, %edx addl %eax, %ecx - movl %edx, 4(%esp) + movl %edx, VAL(%esp) /* Store %ecx in the variable pointed to by the second argument, get the factor from the stack and return. */ -1: movl 8(%esp), %eax - flds 4(%esp) +1: movl EXPP(%esp), %eax + CHECK_BOUNDS_BOTH_WIDE (%eax, EXPP(%esp), $4) + flds VAL(%esp) movl %ecx, (%eax) + + LEAVE ret -END(__frexpf) -weak_alias (__frexpf, frexpf) +END (BP_SYM (__frexpf)) +weak_alias (BP_SYM (__frexpf), BP_SYM (frexpf)) |