diff options
Diffstat (limited to 'sysdeps/i386/fpu/s_frexpl.S')
| -rw-r--r-- | sysdeps/i386/fpu/s_frexpl.S | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/sysdeps/i386/fpu/s_frexpl.S b/sysdeps/i386/fpu/s_frexpl.S index e3019ced6d..df749f8d4c 100644 --- a/sysdeps/i386/fpu/s_frexpl.S +++ b/sysdeps/i386/fpu/s_frexpl.S @@ -1,5 +1,5 @@ /* ix87 specific frexp implementation for long double. - 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 @@ -37,11 +39,19 @@ two64: .byte 0, 0, 0, 0, 0, 0, 0xf0, 0x43 #define MO(op) op #endif +#define PARMS LINKAGE /* no space for saved regs */ +#define VAL0 PARMS +#define VAL1 VAL0+4 +#define VAL2 VAL1+4 +#define EXPP VAL2+4 + .text -ENTRY(__frexpl) - movl 4(%esp), %ecx - movl 12(%esp), %eax - orl 8(%esp), %ecx +ENTRY (BP_SYM (__frexpl)) + ENTER + + movl VAL0(%esp), %ecx + movl VAL2(%esp), %eax + orl VAL1(%esp), %ecx movl %eax, %edx andl $0x7fff, %eax orl %eax, %ecx @@ -53,7 +63,7 @@ ENTRY(__frexpl) cmpl $0, %eax je 2f - fldt 4(%esp) + fldt VAL0(%esp) #ifdef PIC call 3f 3: popl %edx @@ -61,8 +71,8 @@ ENTRY(__frexpl) #endif fmull MO(two64) /* It's not necessary to use a 80bit factor */ movl $-64, %ecx - fstpt 4(%esp) - movl 12(%esp), %eax + fstpt VAL0(%esp) + movl VAL2(%esp), %eax movl %eax, %edx andl $0x7fff, %eax @@ -70,13 +80,16 @@ ENTRY(__frexpl) subl $16382, %eax orl $0x3ffe, %edx addl %eax, %ecx - movl %edx, 12(%esp) + movl %edx, VAL2(%esp) /* Store %ecx in the variable pointed to by the second argument, get the factor from the stack and return. */ -1: movl 16(%esp), %eax - fldt 4(%esp) +1: movl EXPP(%esp), %eax + CHECK_BOUNDS_BOTH_WIDE (%eax, EXPP(%esp), $4) + fldt VAL0(%esp) movl %ecx, (%eax) + + LEAVE ret -END(__frexpl) -weak_alias (__frexpl, frexpl) +END (BP_SYM (__frexpl)) +weak_alias (BP_SYM (__frexpl), BP_SYM (frexpl)) |