1998-08-23 Ricahrd Henderson <rth@cygnus.com> * sysdeps/alpha/elf/crtbegin.S: Fix .prologue; no pv used. * sysdeps/alpha/elf/crtend.S: Likewise. * sysdeps/alpha/elf/start.S: Likewise. * sysdeps/unix/sysv/linux/alpha/rt_sigaction.S: Fix .prologue; non-standard pv usage. * sysdeps/unix/sysv/linux/alpha/brk.S: Use jmp macro for relaxation. * sysdeps/unix/sysv/linux/alpha/getitimer.S: Likewise. * sysdeps/unix/sysv/linux/alpha/getrusage.S: Likewise. * sysdeps/unix/sysv/linux/alpha/gettimeofday.S: Likewise. * sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S: Likewise. * sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S: Likewise. * sysdeps/unix/sysv/linux/alpha/select.S: Likewise. * sysdeps/unix/sysv/linux/alpha/setitimer.S: Likewise. * sysdeps/unix/sysv/linux/alpha/settimeofday.S: Likewise. * sysdeps/unix/sysv/linux/alpha/utimes.S: Likewise. * sysdeps/unix/sysv/linux/alpha/wait4.S: Likewise. * sysdeps/alpha/fpu/e_sqrt.c: Use the asm version when the input is a finite non-denormal, deferring to the full IEEE version otherwise. * sysdeps/alpha/fpu/bits/mathinline.h (__floorf, __floor): Early out for -0. Optimize for !_IEEE_FP_INEXACT. * sysdeps/alpha/fpu/s_floor.c: New. * sysdeps/alpha/fpu/s_floorf.c: New. * sysdeps/alpha/fpu/s_ceil.c: New. * sysdeps/alpha/fpu/s_ceilf.c: New.
This commit is contained in:
Richard Henderson
parent
ba3904fdf8
commit
7d84a06715
31
ChangeLog
31
ChangeLog
@ -1,3 +1,34 @@
|
||||
1998-08-23 Ricahrd Henderson <rth@cygnus.com>
|
||||
|
||||
* sysdeps/alpha/elf/crtbegin.S: Fix .prologue; no pv used.
|
||||
* sysdeps/alpha/elf/crtend.S: Likewise.
|
||||
* sysdeps/alpha/elf/start.S: Likewise.
|
||||
|
||||
* sysdeps/unix/sysv/linux/alpha/rt_sigaction.S: Fix .prologue;
|
||||
non-standard pv usage.
|
||||
|
||||
* sysdeps/unix/sysv/linux/alpha/brk.S: Use jmp macro for relaxation.
|
||||
* sysdeps/unix/sysv/linux/alpha/getitimer.S: Likewise.
|
||||
* sysdeps/unix/sysv/linux/alpha/getrusage.S: Likewise.
|
||||
* sysdeps/unix/sysv/linux/alpha/gettimeofday.S: Likewise.
|
||||
* sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S: Likewise.
|
||||
* sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S: Likewise.
|
||||
* sysdeps/unix/sysv/linux/alpha/select.S: Likewise.
|
||||
* sysdeps/unix/sysv/linux/alpha/setitimer.S: Likewise.
|
||||
* sysdeps/unix/sysv/linux/alpha/settimeofday.S: Likewise.
|
||||
* sysdeps/unix/sysv/linux/alpha/utimes.S: Likewise.
|
||||
* sysdeps/unix/sysv/linux/alpha/wait4.S: Likewise.
|
||||
|
||||
* sysdeps/alpha/fpu/e_sqrt.c: Use the asm version when the input is
|
||||
a finite non-denormal, deferring to the full IEEE version otherwise.
|
||||
|
||||
* sysdeps/alpha/fpu/bits/mathinline.h (__floorf, __floor):
|
||||
Early out for -0. Optimize for !_IEEE_FP_INEXACT.
|
||||
* sysdeps/alpha/fpu/s_floor.c: New.
|
||||
* sysdeps/alpha/fpu/s_floorf.c: New.
|
||||
* sysdeps/alpha/fpu/s_ceil.c: New.
|
||||
* sysdeps/alpha/fpu/s_ceilf.c: New.
|
||||
|
||||
1998-08-22 Philip Blundell <philb@gnu.org>
|
||||
|
||||
* sysdeps/arm/bits/string.h: New file.
|
||||
|
||||
@ -74,7 +74,7 @@ __do_global_dtors_aux:
|
||||
stq $9,8($sp)
|
||||
stq $26,0($sp)
|
||||
.mask (1<<26)|(1<<9), -16
|
||||
.prologue 1
|
||||
.prologue 0
|
||||
|
||||
lda $9,__DTOR_LIST__
|
||||
br 1f
|
||||
|
||||
@ -74,7 +74,7 @@ __do_global_ctors_aux:
|
||||
stq $9,8($sp)
|
||||
stq $26,0($sp)
|
||||
.mask (1<<26)|(1<<9), -16
|
||||
.prologue 1
|
||||
.prologue 0
|
||||
|
||||
lda $9,__CTOR_END__
|
||||
br 1f
|
||||
|
||||
@ -30,7 +30,7 @@ _start:
|
||||
br gp, 1f
|
||||
1: ldgp gp, 0(gp)
|
||||
subq sp, 16, sp
|
||||
.prologue 1
|
||||
.prologue 0
|
||||
|
||||
/* Load address of the user's main function. */
|
||||
lda a0, main
|
||||
|
||||
@ -75,7 +75,7 @@ __inline_copysign(copysign, double)
|
||||
#undef __MATH_INLINE_copysign
|
||||
|
||||
|
||||
#if defined __GNUC__ && (__GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 8)
|
||||
#if defined __GNUC__ && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8))
|
||||
__MATH_INLINE float __fabsf (float __x) { return __builtin_fabsf (__x); }
|
||||
__MATH_INLINE float fabsf (float __x) { return __builtin_fabsf (__x); }
|
||||
__MATH_INLINE double __fabs (double __x) { return __builtin_fabs (__x); }
|
||||
@ -106,7 +106,8 @@ __inline_fabs(fabs, double)
|
||||
__MATH_INLINE float
|
||||
__floorf (float __x)
|
||||
{
|
||||
if (fabsf (__x) < 16777216.0f) /* 1 << FLT_MANT_DIG */
|
||||
/* Check not zero since floor(-0) == -0. */
|
||||
if (__x != 0 && fabsf (__x) < 16777216.0f) /* 1 << FLT_MANT_DIG */
|
||||
{
|
||||
/* Note that Alpha S_Floating is stored in registers in a
|
||||
restricted T_Floating format, so we don't even need to
|
||||
@ -116,10 +117,13 @@ __floorf (float __x)
|
||||
float __tmp1, __tmp2;
|
||||
|
||||
__asm ("cvtst/s %3,%2\n\t"
|
||||
#ifdef _IEEE_FP_INEXACT
|
||||
"cvttq/svim %2,%1\n\t"
|
||||
"cvtqt/suim %1,%0\n\t"
|
||||
"trapb"
|
||||
: "=&f"(__x), "=&f"(__tmp1), "=&f"(__tmp2)
|
||||
#else
|
||||
"cvttq/svm %2,%1\n\t"
|
||||
#endif
|
||||
"cvtqt/m %1,%0\n\t"
|
||||
: "=f"(__x), "=&f"(__tmp1), "=&f"(__tmp2)
|
||||
: "f"(__x));
|
||||
}
|
||||
return __x;
|
||||
@ -128,13 +132,17 @@ __floorf (float __x)
|
||||
__MATH_INLINE double
|
||||
__floor (double __x)
|
||||
{
|
||||
if (fabs (__x) < 9007199254740992.0) /* 1 << DBL_MANT_DIG */
|
||||
if (__x != 0 && fabs (__x) < 9007199254740992.0) /* 1 << DBL_MANT_DIG */
|
||||
{
|
||||
double __tmp1;
|
||||
__asm ("cvttq/svim %2,%1\n\t"
|
||||
"cvtqt/suim %1,%0\n\t"
|
||||
"trapb"
|
||||
: "=&f"(__x), "=&f"(__tmp1)
|
||||
__asm (
|
||||
#ifdef _IEEE_FP_INEXACT
|
||||
"cvttq/svim %2,%1\n\t"
|
||||
#else
|
||||
"cvttq/svm %2,%1\n\t"
|
||||
#endif
|
||||
"cvtqt/m %1,%0\n\t"
|
||||
: "=f"(__x), "=&f"(__tmp1)
|
||||
: "f"(__x));
|
||||
}
|
||||
return __x;
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
|
||||
/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
|
||||
Contributed by David Mosberger (davidm@cs.arizona.edu).
|
||||
|
||||
This file is part of the GNU C Library.
|
||||
@ -18,17 +18,16 @@
|
||||
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
|
||||
#if !defined(_IEEE_FP_INEXACT)
|
||||
|
||||
/*
|
||||
* We have three versions, depending on how exact we need the results.
|
||||
* This version is much faster than generic sqrt implementation, but
|
||||
* it doesn't handle the inexact flag. It doesn't handle exceptional
|
||||
* values either, but will defer to the full ieee754_sqrt routine which
|
||||
* can.
|
||||
*/
|
||||
|
||||
#if defined(_IEEE_FP) && defined(_IEEE_FP_INEXACT)
|
||||
|
||||
/* Most demanding: go to the original source. */
|
||||
#include <libm-ieee754/e_sqrt.c>
|
||||
|
||||
#else
|
||||
|
||||
/* Careful with rearranging this without consulting the assembly below. */
|
||||
const static struct sqrt_data_struct {
|
||||
unsigned long dn, up, half, almost_three_half;
|
||||
@ -54,112 +53,6 @@ const static struct sqrt_data_struct {
|
||||
0x1527f,0x1334a,0x11051,0xe951, 0xbe01, 0x8e0d, 0x5924, 0x1edd }
|
||||
};
|
||||
|
||||
#ifdef _IEEE_FP
|
||||
/*
|
||||
* This version is much faster than the standard one included above,
|
||||
* but it doesn't maintain the inexact flag.
|
||||
*/
|
||||
|
||||
#define lobits(x) (((unsigned int *)&x)[0])
|
||||
#define hibits(x) (((unsigned int *)&x)[1])
|
||||
|
||||
static inline double initial_guess(double x, unsigned int k,
|
||||
const struct sqrt_data_struct * const ptr)
|
||||
{
|
||||
double ret = 0.0;
|
||||
|
||||
k = 0x5fe80000 - (k >> 1);
|
||||
k = k - ptr->T2[63&(k>>14)];
|
||||
hibits(ret) = k;
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* up = nextafter(1,+Inf), dn = nextafter(1,-Inf) */
|
||||
|
||||
#define __half (ptr->half)
|
||||
#define __one_and_a_half (ptr->one_and_a_half)
|
||||
#define __two_to_minus_30 (ptr->two_to_minus_30)
|
||||
#define __one (ptr->one)
|
||||
#define __up (ptr->up)
|
||||
#define __dn (ptr->dn)
|
||||
#define __Nan (ptr->nan)
|
||||
|
||||
#define Double(x) (*(double *)&x)
|
||||
|
||||
/* Multiply with chopping rounding.. */
|
||||
#define choppedmul(a,b,c) \
|
||||
__asm__("multc %1,%2,%0":"=&f" (c):"f" (a), "f" (b))
|
||||
|
||||
double
|
||||
__ieee754_sqrt(double x)
|
||||
{
|
||||
const struct sqrt_data_struct * const ptr = &sqrt_data;
|
||||
unsigned long k, bits;
|
||||
double y, z, zp, zn;
|
||||
double dn, up, low, high;
|
||||
double half, one_and_a_half, one, two_to_minus_30;
|
||||
|
||||
*(double *)&bits = x;
|
||||
k = bits;
|
||||
|
||||
/* Negative or NaN or Inf */
|
||||
if ((k >> 52) >= 0x7ff)
|
||||
goto special;
|
||||
y = initial_guess(x, k >> 32, ptr);
|
||||
half = Double(__half);
|
||||
one_and_a_half = Double(__one_and_a_half);
|
||||
y = y*(one_and_a_half - half*x*y*y);
|
||||
dn = Double(__dn);
|
||||
two_to_minus_30 = Double(__two_to_minus_30);
|
||||
y = y*((one_and_a_half - two_to_minus_30) - half*x*y*y);
|
||||
up = Double(__up);
|
||||
z = x*y;
|
||||
one = Double(__one);
|
||||
z = z + half*z*(one-z*y);
|
||||
|
||||
choppedmul(z,dn,zp);
|
||||
choppedmul(z,up,zn);
|
||||
|
||||
choppedmul(z,zp,low);
|
||||
low = low - x;
|
||||
choppedmul(z,zn,high);
|
||||
high = high - x;
|
||||
|
||||
/* I can't get gcc to use fcmov's.. */
|
||||
__asm__("fcmovge %2,%3,%0"
|
||||
:"=f" (z)
|
||||
:"0" (z), "f" (low), "f" (zp));
|
||||
__asm__("fcmovlt %2,%3,%0"
|
||||
:"=f" (z)
|
||||
:"0" (z), "f" (high), "f" (zn));
|
||||
return z; /* Argh! gcc jumps to end here */
|
||||
|
||||
special:
|
||||
/* throw away sign bit */
|
||||
k <<= 1;
|
||||
/* -0 */
|
||||
if (!k)
|
||||
return x;
|
||||
/* special? */
|
||||
if ((k >> 53) == 0x7ff) {
|
||||
/* NaN? */
|
||||
if (k << 11)
|
||||
return x;
|
||||
/* sqrt(+Inf) = +Inf */
|
||||
if (x > 0)
|
||||
return x;
|
||||
}
|
||||
|
||||
x = Double(__Nan);
|
||||
return x;
|
||||
}
|
||||
|
||||
#else
|
||||
/*
|
||||
* This version is much faster than generic sqrt implementation, but
|
||||
* it doesn't handle exceptional values or the inexact flag.
|
||||
*/
|
||||
|
||||
asm ("\
|
||||
/* Define offsets into the structure defined in C above. */
|
||||
$DN = 0*8
|
||||
@ -174,7 +67,7 @@ asm ("\
|
||||
$Y = 8
|
||||
|
||||
.text
|
||||
.align 3
|
||||
.align 5
|
||||
.globl __ieee754_sqrt
|
||||
.ent __ieee754_sqrt
|
||||
__ieee754_sqrt:
|
||||
@ -187,72 +80,86 @@ __ieee754_sqrt:
|
||||
#endif
|
||||
" .prologue 1
|
||||
|
||||
stt $f16, $K($sp)
|
||||
lda $4, sqrt_data # load base address into t3
|
||||
fblt $f16, $negative
|
||||
.align 4
|
||||
stt $f16, $K($sp) # e0 :
|
||||
mult $f31, $f31, $f31 # .. fm :
|
||||
lda $4, sqrt_data # e0 :
|
||||
fblt $f16, $fixup # .. fa :
|
||||
|
||||
/* Compute initial guess. */
|
||||
|
||||
.align 3
|
||||
|
||||
ldah $2, 0x5fe8 # e0 :
|
||||
ldq $3, $K($sp) # .. e1 :
|
||||
ldt $f12, $HALF($4) # e0 :
|
||||
ldah $2, 0x5fe8 # e0 :
|
||||
ldq $3, $K($sp) # .. e1 :
|
||||
ldt $f12, $HALF($4) # e0 :
|
||||
ldt $f18, $ALMOST_THREE_HALF($4) # .. e1 :
|
||||
srl $3, 33, $1 # e0 :
|
||||
mult $f16, $f12, $f11 # .. fm : $f11 = x * 0.5
|
||||
subl $2, $1, $2 # e0 :
|
||||
addt $f12, $f12, $f17 # .. fa : $f17 = 1.0
|
||||
srl $2, 12, $1 # e0 :
|
||||
and $1, 0xfc, $1 # .. e1 :
|
||||
addq $1, $4, $1 # e0 :
|
||||
ldl $1, $T2($1) # .. e1 :
|
||||
addt $f12, $f17, $f15 # fa : $f15 = 1.5
|
||||
subl $2, $1, $2 # .. e1 :
|
||||
sll $2, 32, $2 # e0 :
|
||||
ldt $f14, $DN($4) # .. e1 :
|
||||
stq $2, $Y($sp) # e0 :
|
||||
nop # .. e1 : avoid pipe flash
|
||||
nop # e0 :
|
||||
ldt $f13, $Y($sp) # .. e1 :
|
||||
|
||||
mult/su $f11, $f13, $f10 # fm : $f10 = (x * 0.5) * y
|
||||
mult $f10, $f13, $f10 # fm : $f10 = ((x * 0.5) * y) * y
|
||||
subt $f15, $f10, $f1 # fa : $f1 = (1.5 - 0.5*x*y*y)
|
||||
mult $f13, $f1, $f13 # fm : yp = y*(1.5 - 0.5*x*y*y)
|
||||
mult/su $f11, $f13, $f1 # fm : $f11 = x * 0.5 * yp
|
||||
mult $f1, $f13, $f11 # fm : $f11 = (x * 0.5 * yp) * yp
|
||||
subt $f18, $f11, $f1 # fa : $f1= (1.5-2^-30) - 0.5*x*yp*yp
|
||||
mult $f13, $f1, $f13 # fm : ypp = $f13 = yp*$f1
|
||||
subt $f15, $f12, $f1 # fa : $f1 = (1.5 - 0.5)
|
||||
ldt $f15, $UP($4) # .. e1 :
|
||||
mult/su $f16, $f13, $f10 # fm : z = $f10 = x * ypp
|
||||
mult $f10, $f13, $f11 # fm : $f11 = z*ypp
|
||||
sll $3, 52, $5 # e0 :
|
||||
lda $6, 0x7fd # .. e1 :
|
||||
fnop # .. fa :
|
||||
fnop # .. fm :
|
||||
|
||||
subq $5, 1, $5 # e1 :
|
||||
srl $3, 33, $1 # .. e0 :
|
||||
cmpule $5, $6, $5 # e0 :
|
||||
beq $5, $fixup # .. e1 :
|
||||
|
||||
mult $f16, $f12, $f11 # fm : $f11 = x * 0.5
|
||||
subl $2, $1, $2 # .. e0 :
|
||||
addt $f12, $f12, $f17 # .. fa : $f17 = 1.0
|
||||
srl $2, 12, $1 # e0 :
|
||||
|
||||
and $1, 0xfc, $1 # e0 :
|
||||
addq $1, $4, $1 # e1 :
|
||||
ldl $1, $T2($1) # e0 :
|
||||
addt $f12, $f17, $f15 # .. fa : $f15 = 1.5
|
||||
|
||||
subl $2, $1, $2 # e0 :
|
||||
ldt $f14, $DN($4) # .. e1 :
|
||||
sll $2, 32, $2 # e0 :
|
||||
stq $2, $Y($sp) # e0 :
|
||||
|
||||
ldt $f13, $Y($sp) # e0 :
|
||||
mult/su $f11, $f13, $f10 # fm 2: $f10 = (x * 0.5) * y
|
||||
mult $f10, $f13, $f10 # fm 4: $f10 = ((x * 0.5) * y) * y
|
||||
subt $f15, $f10, $f1 # fa 4: $f1 = (1.5 - 0.5*x*y*y)
|
||||
|
||||
mult $f13, $f1, $f13 # fm 4: yp = y*(1.5 - 0.5*x*y*y)
|
||||
mult/su $f11, $f13, $f1 # fm 4: $f11 = x * 0.5 * yp
|
||||
mult $f1, $f13, $f11 # fm 4: $f11 = (x * 0.5 * yp) * yp
|
||||
subt $f18, $f11, $f1 # fa 4: $f1= (1.5-2^-30) - 0.5*x*yp*yp
|
||||
|
||||
mult $f13, $f1, $f13 # fm 4: ypp = $f13 = yp*$f1
|
||||
subt $f15, $f12, $f1 # .. fa : $f1 = (1.5 - 0.5)
|
||||
ldt $f15, $UP($4) # .. e0 :
|
||||
mult/su $f16, $f13, $f10 # fm 4: z = $f10 = x * ypp
|
||||
|
||||
mult $f10, $f13, $f11 # fm 4: $f11 = z*ypp
|
||||
mult $f10, $f12, $f12 # fm : $f12 = z*0.5
|
||||
subt $f1, $f11, $f1 # .. fa : $f1 = 1 - z*ypp
|
||||
mult $f12, $f1, $f12 # fm : $f12 = z*0.5*(1 - z*ypp)
|
||||
addt $f10, $f12, $f0 # fa : zp=res=$f0= z + z*0.5*(1 - z*ypp)
|
||||
subt $f1, $f11, $f1 # fa 4: $f1 = 1 - z*ypp
|
||||
mult $f12, $f1, $f12 # fm 4: $f12 = z*0.5*(1 - z*ypp)
|
||||
|
||||
mult/c $f0, $f14, $f12 # fm : zmi = zp * DN
|
||||
addt $f10, $f12, $f0 # fa 4: zp=res= z + z*0.5*(1 - z*ypp)
|
||||
mult/c $f0, $f14, $f12 # fm 4: zmi = zp * DN
|
||||
mult/c $f0, $f15, $f11 # fm : zpl = zp * UP
|
||||
mult/c $f0, $f12, $f1 # fm : $f1 = zp * zmi
|
||||
|
||||
mult/c $f0, $f11, $f15 # fm : $f15 = zp * zpl
|
||||
subt/su $f1, $f16, $f13 # .. fa : y1 = zp*zmi - x
|
||||
subt/su $f15, $f16, $f14 # fa 4: y2 = zp*zpl - x
|
||||
fcmovge $f13, $f12, $f0 # fa 3: res = (y1 >= 0) ? zmi : res
|
||||
|
||||
subt/su $f1, $f16, $f13 # fa : y1 = zp*zmi - x
|
||||
subt/su $f15, $f16, $f14 # fa : y2 = zp*zpl - x
|
||||
|
||||
fcmovge $f13, $f12, $f0 # res = (y1 >= 0) ? zmi : res
|
||||
fcmovlt $f14, $f11, $f0 # res = (y2 < 0) ? zpl : res
|
||||
|
||||
addq $sp, 16, $sp # e0 :
|
||||
fcmovlt $f14, $f11, $f0 # fa 4: res = (y2 < 0) ? zpl : res
|
||||
addq $sp, 16, $sp # .. e0 :
|
||||
ret # .. e1 :
|
||||
|
||||
$negative:
|
||||
ldt $f0, $NAN($4)
|
||||
.align 4
|
||||
$fixup:
|
||||
addq $sp, 16, $sp
|
||||
ret
|
||||
br "ASM_ALPHA_NG_SYMBOL_PREFIX"__full_ieee754_sqrt..ng
|
||||
|
||||
.end __ieee754_sqrt");
|
||||
|
||||
#endif /* _IEEE_FP */
|
||||
#endif /* _IEEE_FP && _IEEE_FP_INEXACT */
|
||||
static double __full_ieee754_sqrt(double) __attribute__((unused));
|
||||
#define __ieee754_sqrt __full_ieee754_sqrt
|
||||
|
||||
#endif /* _IEEE_FP_INEXACT */
|
||||
|
||||
#include <sysdeps/libm-ieee754/e_sqrt.c>
|
||||
|
||||
58
sysdeps/alpha/fpu/s_ceil.c
Normal file
58
sysdeps/alpha/fpu/s_ceil.c
Normal file
@ -0,0 +1,58 @@
|
||||
/* Copyright (C) 1998 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Richard Henderson.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
||||
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#include <math.h>
|
||||
|
||||
double
|
||||
__ceil (double x)
|
||||
{
|
||||
if (x != 0 && fabs (x) < 9007199254740992.0) /* 1 << DBL_MANT_DIG */
|
||||
{
|
||||
double tmp1;
|
||||
unsigned long fpcr0, fpcr1;
|
||||
unsigned long pinf = 3UL << 58;
|
||||
|
||||
/* Set round to +inf. */
|
||||
__asm __volatile("excb; mf_fpcr %0" : "=f"(fpcr0));
|
||||
__asm __volatile("mt_fpcr %0; excb" : : "f"(fpcr0 | pinf));
|
||||
|
||||
/* Calculate! */
|
||||
#ifdef _IEEE_FP_INEXACT
|
||||
__asm("cvttq/svid %2,%1\n\tcvtqt/suid %1,%0"
|
||||
: "=f"(x), "=&f"(tmp1)
|
||||
: "f"(x));
|
||||
#else
|
||||
__asm("cvttq/svd %2,%1\n\tcvtqt/d %1,%0"
|
||||
: "=f"(x), "=&f"(tmp1)
|
||||
: "f"(x));
|
||||
#endif
|
||||
|
||||
/* Reset rounding mode, while retaining new exception bits. */
|
||||
__asm __volatile("excb; mf_fpcr %0" : "=f"(fpcr1));
|
||||
fpcr0 = (fpcr0 & pinf) | (fpcr1 & ~pinf);
|
||||
__asm __volatile("mt_fpcr %0; excb" : : "f"(fpcr0));
|
||||
}
|
||||
return x;
|
||||
}
|
||||
|
||||
weak_alias (__ceil, ceil)
|
||||
#ifdef NO_LONG_DOUBLE
|
||||
strong_alias (__ceil, __ceill)
|
||||
weak_alias (__ceil, ceill)
|
||||
#endif
|
||||
59
sysdeps/alpha/fpu/s_ceilf.c
Normal file
59
sysdeps/alpha/fpu/s_ceilf.c
Normal file
@ -0,0 +1,59 @@
|
||||
/* Copyright (C) 1998 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Richard Henderson.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
||||
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#include <math.h>
|
||||
|
||||
float
|
||||
__ceilf (float x)
|
||||
{
|
||||
if (x != 0 && fabsf (x) < 16777216.0f) /* 1 << FLT_MANT_DIG */
|
||||
{
|
||||
float tmp1, tmp2;
|
||||
unsigned long fpcr0, fpcr1;
|
||||
unsigned long pinf = 3UL << 58;
|
||||
|
||||
/* Set round to +inf. */
|
||||
__asm __volatile("excb; mf_fpcr %0" : "=f"(fpcr0));
|
||||
__asm __volatile("mt_fpcr %0; excb" : : "f"(fpcr0 | pinf));
|
||||
|
||||
/* Calculate!
|
||||
Note that Alpha S_Floating is stored in registers in a
|
||||
restricted T_Floating format, so we don't even need to
|
||||
convert back to S_Floating in the end. The initial
|
||||
conversion to T_Floating is needed to handle denormals. */
|
||||
|
||||
#ifdef _IEEE_FP_INEXACT
|
||||
__asm("cvtst/s %3,%2\n\tcvttq/svid %2,%1\n\tcvtqt/suid %1,%0"
|
||||
: "=f"(x), "=&f"(tmp1), "=&f"(tmp2)
|
||||
: "f"(x));
|
||||
#else
|
||||
__asm("cvtst/s %3,%2\n\tcvttq/svd %2,%1\n\tcvtqt/d %1,%0"
|
||||
: "=f"(x), "=&f"(tmp1), "=&f"(tmp2)
|
||||
: "f"(x));
|
||||
#endif
|
||||
|
||||
/* Reset rounding mode, while retaining new exception bits. */
|
||||
__asm __volatile("excb; mf_fpcr %0" : "=f"(fpcr1));
|
||||
fpcr0 = (fpcr0 & pinf) | (fpcr1 & ~pinf);
|
||||
__asm __volatile("mt_fpcr %0; excb" : : "f"(fpcr0));
|
||||
}
|
||||
return x;
|
||||
}
|
||||
|
||||
weak_alias (__ceilf, ceilf)
|
||||
39
sysdeps/alpha/fpu/s_floor.c
Normal file
39
sysdeps/alpha/fpu/s_floor.c
Normal file
@ -0,0 +1,39 @@
|
||||
/* Copyright (C) 1998 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Richard Henderson.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
||||
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#ifndef __USE_EXTERN_INLINES
|
||||
#define __USE_EXTERN_INLINES
|
||||
#endif
|
||||
#define __floor __i_floor
|
||||
|
||||
#include <math.h>
|
||||
|
||||
#undef __floor
|
||||
|
||||
double
|
||||
__floor (double x)
|
||||
{
|
||||
return __i_floor(x);
|
||||
}
|
||||
|
||||
weak_alias (__floor, floor)
|
||||
#ifdef NO_LONG_DOUBLE
|
||||
strong_alias (__floor, __floorl)
|
||||
weak_alias (__floor, floorl)
|
||||
#endif
|
||||
35
sysdeps/alpha/fpu/s_floorf.c
Normal file
35
sysdeps/alpha/fpu/s_floorf.c
Normal file
@ -0,0 +1,35 @@
|
||||
/* Copyright (C) 1998 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Richard Henderson.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
||||
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#ifndef __USE_EXTERN_INLINES
|
||||
#define __USE_EXTERN_INLINES
|
||||
#endif
|
||||
#define __floorf __i_floorf
|
||||
|
||||
#include <math.h>
|
||||
|
||||
#undef __floorf
|
||||
|
||||
float
|
||||
__floorf (float x)
|
||||
{
|
||||
return __i_floorf(x);
|
||||
}
|
||||
|
||||
weak_alias (__floorf, floorf)
|
||||
@ -73,9 +73,8 @@ $ok: stq a0, __curbrk
|
||||
|
||||
/* What a horrible way to die. */
|
||||
$err0: ldi v0, ENOMEM
|
||||
$err1: lda pv, __syscall_error
|
||||
addq sp, 8, sp
|
||||
jmp zero, (pv), __syscall_error
|
||||
$err1: addq sp, 8, sp
|
||||
jmp zero, __syscall_error
|
||||
|
||||
END(__brk)
|
||||
|
||||
|
||||
@ -96,9 +96,8 @@ $do32: ldi v0, SYS_ify(osf_getitimer)
|
||||
|
||||
.align 3
|
||||
$error:
|
||||
lda pv, __syscall_error
|
||||
addq sp, 16, sp
|
||||
jmp zero, (pv), __syscall_error
|
||||
jmp zero, __syscall_error
|
||||
|
||||
END(GETITIMER)
|
||||
|
||||
|
||||
@ -124,9 +124,8 @@ $do32: ldi v0, SYS_ify(osf_getrusage)
|
||||
|
||||
.align 3
|
||||
$error:
|
||||
lda pv, __syscall_error
|
||||
addq sp, 16, sp
|
||||
jmp zero, (pv), __syscall_error
|
||||
jmp zero, __syscall_error
|
||||
|
||||
END(GETRUSAGE)
|
||||
|
||||
|
||||
@ -93,9 +93,8 @@ $do32: ldi v0, SYS_ify(osf_gettimeofday)
|
||||
|
||||
.align 3
|
||||
$error:
|
||||
lda pv, __syscall_error
|
||||
addq sp, 16, sp
|
||||
jmp zero, (pv), __syscall_error
|
||||
jmp zero, __syscall_error
|
||||
|
||||
END(GETTIMEOFDAY)
|
||||
|
||||
|
||||
@ -52,9 +52,8 @@ $error:
|
||||
br gp, 1f
|
||||
1: ldgp gp, 0(gp)
|
||||
#endif
|
||||
lda pv, __syscall_error
|
||||
lda sp, 16(sp)
|
||||
jmp zero, (pv), __syscall_error
|
||||
jmp zero, __syscall_error
|
||||
|
||||
END(__ieee_get_fp_control)
|
||||
|
||||
|
||||
@ -51,9 +51,8 @@ $error:
|
||||
br gp, 1f
|
||||
1: ldgp gp, 0(gp)
|
||||
#endif
|
||||
lda pv, __syscall_error
|
||||
lda sp, 16(sp)
|
||||
jmp zero, (pv), __syscall_error
|
||||
jmp zero, __syscall_error
|
||||
|
||||
END(__ieee_set_fp_control)
|
||||
|
||||
|
||||
@ -107,9 +107,8 @@ $do32:
|
||||
|
||||
.align 3
|
||||
$error:
|
||||
lda pv, __syscall_error
|
||||
addq sp, 64, sp
|
||||
jmp zero, (pv), __syscall_error
|
||||
jmp zero, __syscall_error
|
||||
|
||||
END(SELECT)
|
||||
|
||||
|
||||
@ -112,9 +112,8 @@ $do32:
|
||||
|
||||
.align 3
|
||||
$error:
|
||||
lda pv, __syscall_error
|
||||
addq sp, 48, sp
|
||||
jmp zero, (pv), __syscall_error
|
||||
jmp zero, __syscall_error
|
||||
|
||||
END(SETITIMER)
|
||||
|
||||
|
||||
@ -93,9 +93,8 @@ $do32:
|
||||
|
||||
.align 3
|
||||
$error:
|
||||
lda pv, __syscall_error
|
||||
addq sp, 16, sp
|
||||
jmp zero, (pv), __syscall_error
|
||||
jmp zero, __syscall_error
|
||||
|
||||
END(SETTIMEOFDAY)
|
||||
|
||||
|
||||
@ -98,9 +98,8 @@ $do32:
|
||||
|
||||
.align 3
|
||||
$error:
|
||||
lda pv, __syscall_error
|
||||
addq sp, 16, sp
|
||||
jmp zero, (pv), __syscall_error
|
||||
jmp zero, __syscall_error
|
||||
|
||||
END(UTIMES)
|
||||
|
||||
|
||||
@ -131,9 +131,8 @@ $do32: ldi v0, SYS_ify(osf_wait4)
|
||||
|
||||
.align 3
|
||||
$error:
|
||||
lda pv, __syscall_error
|
||||
addq sp, 32, sp
|
||||
jmp zero, (pv), __syscall_error
|
||||
jmp zero, __syscall_error
|
||||
|
||||
END(WAIT4)
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user