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-rw-r--r--sysdeps/libm-i387/e_acosl.S21
-rw-r--r--sysdeps/libm-i387/e_exp.S17
-rw-r--r--sysdeps/libm-i387/s_ceil.S10
-rw-r--r--sysdeps/libm-i387/s_ceilf.S10
-rw-r--r--sysdeps/libm-i387/s_ceill.S30
-rw-r--r--sysdeps/libm-i387/s_copysignl.S20
-rw-r--r--sysdeps/libm-i387/s_finitel.S19
-rw-r--r--sysdeps/libm-i387/s_floor.S10
-rw-r--r--sysdeps/libm-i387/s_floorf.S10
-rw-r--r--sysdeps/libm-i387/s_floorl.S30
-rw-r--r--sysdeps/libm-i387/s_isinfl.c36
-rw-r--r--sysdeps/libm-i387/s_isnanl.c46
-rw-r--r--sysdeps/libm-i387/s_nextafterl.c102
-rw-r--r--sysdeps/libm-i387/s_rintl.S15
-rw-r--r--sysdeps/libm-i387/s_significandl.S16
15 files changed, 365 insertions, 27 deletions
diff --git a/sysdeps/libm-i387/e_acosl.S b/sysdeps/libm-i387/e_acosl.S
new file mode 100644
index 0000000..3779fa7
--- /dev/null
+++ b/sysdeps/libm-i387/e_acosl.S
@@ -0,0 +1,21 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ *
+ * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
+ */
+
+#include <machine/asm.h>
+
+
+/* acosl = atanl (sqrtl(1 - x^2) / x) */
+ENTRY(__ieee754_acos)
+ fldt 4(%esp) /* x */
+ fst %st(1)
+ fmul %st(0) /* x^2 */
+ fld1
+ fsubp /* 1 - x^2 */
+ fsqrt /* sqrtl (1 - x^2) */
+ fxch %st(1)
+ fpatan
+ ret
diff --git a/sysdeps/libm-i387/e_exp.S b/sysdeps/libm-i387/e_exp.S
index 3ed039b..144748e 100644
--- a/sysdeps/libm-i387/e_exp.S
+++ b/sysdeps/libm-i387/e_exp.S
@@ -10,12 +10,15 @@ RCSID("$NetBSD: e_exp.S,v 1.4 1995/05/08 23:47:04 jtc Exp $")
/* e^x = 2^(x * log2(e)) */
ENTRY(__ieee754_exp)
fldl 4(%esp)
- fxam
+/* I added the following ugly construct because exp(+-Inf) resulted
+ in NaN. The ugliness results from the bright minds at Intel.
+ -- drepper@cygnus.com. */
+ fxam /* Is NaN or +-Inf? */
fstsw %ax
sahf
- jnc .LnoInf
- jp .LisInf
-.LnoInf:
+ jnc .LnoInfNaN /* No, jump. */
+ jp .LisInf /* Is +-Inf, jump. */
+.LnoInfNaN:
fldl2e
fmulp /* x * log2(e) */
fstl %st(1)
@@ -29,7 +32,7 @@ ENTRY(__ieee754_exp)
ret
.LisInf:
- andb $2, %ah
- jz .LpInf
- fldz
+ andb $2, %ah /* Test sign. */
+ jz .LpInf /* If positive, jump. */
+ fldz /* Set result to 0. */
.LpInf: ret
diff --git a/sysdeps/libm-i387/s_ceil.S b/sysdeps/libm-i387/s_ceil.S
index 2fd813d..eabe662 100644
--- a/sysdeps/libm-i387/s_ceil.S
+++ b/sysdeps/libm-i387/s_ceil.S
@@ -12,17 +12,17 @@ ENTRY(__ceil)
movl %esp,%ebp
subl $8,%esp
- fstcw -12(%ebp) /* store fpu control word */
- movw -12(%ebp),%dx
+ fstcw -4(%ebp) /* store fpu control word */
+ movw -4(%ebp),%dx
orw $0x0800,%dx /* round towards +oo */
andw $0xfbff,%dx
- movw %dx,-16(%ebp)
- fldcw -16(%ebp) /* load modfied control word */
+ movw %dx,-8(%ebp)
+ fldcw -8(%ebp) /* load modfied control word */
fldl 8(%ebp); /* round */
frndint
- fldcw -12(%ebp) /* restore original control word */
+ fldcw -4(%ebp) /* restore original control word */
leave
ret
diff --git a/sysdeps/libm-i387/s_ceilf.S b/sysdeps/libm-i387/s_ceilf.S
index 6458b45..c2163ab 100644
--- a/sysdeps/libm-i387/s_ceilf.S
+++ b/sysdeps/libm-i387/s_ceilf.S
@@ -12,17 +12,17 @@ ENTRY(__ceilf)
movl %esp,%ebp
subl $8,%esp
- fstcw -12(%ebp) /* store fpu control word */
- movw -12(%ebp),%dx
+ fstcw -4(%ebp) /* store fpu control word */
+ movw -4(%ebp),%dx
orw $0x0800,%dx /* round towards +oo */
andw $0xfbff,%dx
- movw %dx,-16(%ebp)
- fldcw -16(%ebp) /* load modfied control word */
+ movw %dx,-8(%ebp)
+ fldcw -8(%ebp) /* load modfied control word */
flds 8(%ebp); /* round */
frndint
- fldcw -12(%ebp) /* restore original control word */
+ fldcw -4(%ebp) /* restore original control word */
leave
ret
diff --git a/sysdeps/libm-i387/s_ceill.S b/sysdeps/libm-i387/s_ceill.S
new file mode 100644
index 0000000..fd7bd38
--- /dev/null
+++ b/sysdeps/libm-i387/s_ceill.S
@@ -0,0 +1,30 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+RCSID("$NetBSD: $")
+
+ENTRY(__ceill)
+ pushl %ebp
+ movl %esp,%ebp
+ subl $8,%esp
+
+ fstcw -4(%ebp) /* store fpu control word */
+ movw -4(%ebp),%dx
+ orw $0x0800,%dx /* round towards +oo */
+ andw $0xfbff,%dx
+ movw %dx,-8(%ebp)
+ fldcw -8(%ebp) /* load modfied control word */
+
+ fldt 8(%ebp); /* round */
+ frndint
+
+ fldcw -4(%ebp) /* restore original control word */
+
+ leave
+ ret
+weak_alias (__ceill, ceill)
diff --git a/sysdeps/libm-i387/s_copysignl.S b/sysdeps/libm-i387/s_copysignl.S
new file mode 100644
index 0000000..f65f684
--- /dev/null
+++ b/sysdeps/libm-i387/s_copysignl.S
@@ -0,0 +1,20 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+RCSID("$NetBSD: $")
+
+ENTRY(__copysignl)
+ movl 24(%esp),%edx
+ movl 12(%esp),%eax
+ andl $0x8000,%edx
+ andl $0x7fff,%eax
+ orl %edx,%eax
+ movl %eax,12(%esp)
+ fldl 4(%esp)
+ ret
+weak_alias (__copysignl, copysignl)
diff --git a/sysdeps/libm-i387/s_finitel.S b/sysdeps/libm-i387/s_finitel.S
new file mode 100644
index 0000000..d163965
--- /dev/null
+++ b/sysdeps/libm-i387/s_finitel.S
@@ -0,0 +1,19 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ *
+ * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
+ */
+
+#include <machine/asm.h>
+
+RCSID("$NetBSD: $")
+
+ENTRY(__finitel)
+ movl 12(%esp),%eax
+ andl $0x7fff, %eax
+ cmpl $0x7fff, %eax
+ setne %al
+ andl $0x000000ff, %eax
+ ret
+weak_alias (__finitel, finitel)
diff --git a/sysdeps/libm-i387/s_floor.S b/sysdeps/libm-i387/s_floor.S
index 33d5dbc..66e688f 100644
--- a/sysdeps/libm-i387/s_floor.S
+++ b/sysdeps/libm-i387/s_floor.S
@@ -12,17 +12,17 @@ ENTRY(__floor)
movl %esp,%ebp
subl $8,%esp
- fstcw -12(%ebp) /* store fpu control word */
- movw -12(%ebp),%dx
+ fstcw -4(%ebp) /* store fpu control word */
+ movw -4(%ebp),%dx
orw $0x0400,%dx /* round towards -oo */
andw $0xf7ff,%dx
- movw %dx,-16(%ebp)
- fldcw -16(%ebp) /* load modfied control word */
+ movw %dx,-8(%ebp)
+ fldcw -8(%ebp) /* load modfied control word */
fldl 8(%ebp); /* round */
frndint
- fldcw -12(%ebp) /* restore original control word */
+ fldcw -4(%ebp) /* restore original control word */
leave
ret
diff --git a/sysdeps/libm-i387/s_floorf.S b/sysdeps/libm-i387/s_floorf.S
index dd290fa..4b10f74 100644
--- a/sysdeps/libm-i387/s_floorf.S
+++ b/sysdeps/libm-i387/s_floorf.S
@@ -12,17 +12,17 @@ ENTRY(__floorf)
movl %esp,%ebp
subl $8,%esp
- fstcw -12(%ebp) /* store fpu control word */
- movw -12(%ebp),%dx
+ fstcw -4(%ebp) /* store fpu control word */
+ movw -4(%ebp),%dx
orw $0x0400,%dx /* round towards -oo */
andw $0xf7ff,%dx
- movw %dx,-16(%ebp)
- fldcw -16(%ebp) /* load modfied control word */
+ movw %dx,-8(%ebp)
+ fldcw -8(%ebp) /* load modfied control word */
flds 8(%ebp); /* round */
frndint
- fldcw -12(%ebp) /* restore original control word */
+ fldcw -4(%ebp) /* restore original control word */
leave
ret
diff --git a/sysdeps/libm-i387/s_floorl.S b/sysdeps/libm-i387/s_floorl.S
new file mode 100644
index 0000000..af52ffc
--- /dev/null
+++ b/sysdeps/libm-i387/s_floorl.S
@@ -0,0 +1,30 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+RCSID("$NetBSD: $")
+
+ENTRY(__floorl)
+ pushl %ebp
+ movl %esp,%ebp
+ subl $8,%esp
+
+ fstcw -4(%ebp) /* store fpu control word */
+ movw -4(%ebp),%dx
+ orw $0x0400,%dx /* round towards -oo */
+ andw $0xf7ff,%dx
+ movw %dx,-8(%ebp)
+ fldcw -8(%ebp) /* load modfied control word */
+
+ fldt 8(%ebp) /* round */
+ frndint
+
+ fldcw -4(%ebp) /* restore original control word */
+
+ leave
+ ret
+weak_alias (__floorl, floorl)
diff --git a/sysdeps/libm-i387/s_isinfl.c b/sysdeps/libm-i387/s_isinfl.c
new file mode 100644
index 0000000..3ee53d5
--- /dev/null
+++ b/sysdeps/libm-i387/s_isinfl.c
@@ -0,0 +1,36 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Change for long double by Ulrich Drepper <drepper@cygnus.com>.
+ * Intel i387 specific version.
+ * Public domain.
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/*
+ * isinfl(x) returns 1 is x is inf, else 0;
+ * no branching!
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+ int __isinfl(long double x)
+#else
+ int __isinfl(x)
+ long double x;
+#endif
+{
+ int32_t se,hx,lx;
+ GET_LDOUBLE_WORDS(se,hx,lx,x);
+ se &= 0x7fff;
+ se ^= 0x7fff;
+ /* This additional ^ 0x80000000 is necessary because in Intel's
+ internal representation the implicit one is explicit. */
+ se |= (hx ^ 0x80000000) | lx;
+ return (se == 0);
+}
+weak_alias (__isinfl, isinfl)
diff --git a/sysdeps/libm-i387/s_isnanl.c b/sysdeps/libm-i387/s_isnanl.c
new file mode 100644
index 0000000..768ea21
--- /dev/null
+++ b/sysdeps/libm-i387/s_isnanl.c
@@ -0,0 +1,46 @@
+/* s_isnanl.c -- long double version for i387 of s_isnan.c.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/*
+ * isnanl(x) returns 1 is x is nan, else 0;
+ * no branching!
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+ int __isnanl(long double x)
+#else
+ int __isnanl(x)
+ long double x;
+#endif
+{
+ int32_t se,hx,lx;
+ GET_LDOUBLE_WORDS(se,hx,lx,x);
+ se = (se & 0x7fff) << 1;
+ lx |= hx;
+ /* The additional &hx is required because Intel's extended format
+ has the normally implicit 1 explicit present. Sigh! */
+ se |= (u_int32_t)((lx|(-lx))&hx)>>31;
+ se = 0xfffe - se;
+ return (int)((u_int32_t)(se))>>16;
+}
+weak_alias (__isnanl, isnanl)
diff --git a/sysdeps/libm-i387/s_nextafterl.c b/sysdeps/libm-i387/s_nextafterl.c
new file mode 100644
index 0000000..b574430
--- /dev/null
+++ b/sysdeps/libm-i387/s_nextafterl.c
@@ -0,0 +1,102 @@
+/* s_nextafterl.c -- long double version of s_nextafter.c.
+ * Special version for i387.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/* IEEE functions
+ * nextafterl(x,y)
+ * return the next machine floating-point number of x in the
+ * direction toward y.
+ * Special cases:
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+ long double __nextafterl(long double x, long double y)
+#else
+ long double __nextafterl(x,y)
+ long double x,y;
+#endif
+{
+ int32_t hx,hy,ix,iy;
+ u_int32_t lx,ly,esx,esy;
+
+ GET_LDOUBLE_WORDS(esx,hx,lx,x);
+ GET_LDOUBLE_WORDS(esy,hy,ly,y);
+ ix = esx&0x7fff; /* |x| */
+ iy = esy&0x7fff; /* |y| */
+
+ /* The additional &hx/&hy is required because Intel's extended format
+ has the normally implicit 1 explicit present. Sigh! */
+ if(((ix==0x7fff)&&(((hx|lx)|-(hx|lx))&hx)>>31!=0) || /* x is nan */
+ ((iy==0x7fff)&&(((hy|ly)|-(hy|ly))&hy)>>31!=0)) /* y is nan */
+ return x+y;
+ if(x==y) return x; /* x=y, return x */
+ if((ix|hx|lx)==0) { /* x == 0 */
+ SET_LDOUBLE_WORDS(x,esx&0x8000,0,1);/* return +-minsubnormal */
+ y = x*x;
+ if(y==x) return y; else return x; /* raise underflow flag */
+ }
+ if(esx<0x8000) { /* x > 0 */
+ if(ix>iy||((ix==iy) && (hx>hy||((hx==hy)&&(lx>ly))))) {
+ /* x > y, x -= ulp */
+ if(lx==0) {
+ if (hx==0) esx -= 1;
+ hx -= 1;
+ }
+ lx -= 1;
+ } else { /* x < y, x += ulp */
+ lx += 1;
+ if(lx==0) {
+ hx += 1;
+ if (hx==0)
+ esx += 1;
+ }
+ }
+ } else { /* x < 0 */
+ if(esy>=0||(ix>iy||((ix==iy)&&(hx>hy||((hx==hy)&&(lx>ly)))))){
+ /* x < y, x -= ulp */
+ if(lx==0) {
+ if (hx==0) esx -= 1;
+ hx -= 1;
+ }
+ lx -= 1;
+ } else { /* x > y, x += ulp */
+ lx += 1;
+ if(lx==0) {
+ hx += 1;
+ if (hx==0) esx += 1;
+ }
+ }
+ }
+ esy = esx&0x7fff;
+ if(esy==0x7fff) return x+x; /* overflow */
+ if(esy==0) { /* underflow */
+ y = x*x;
+ if(y!=x) { /* raise underflow flag */
+ SET_LDOUBLE_WORDS(y,esx,hx,lx);
+ return y;
+ }
+ }
+ SET_LDOUBLE_WORDS(x,esx,hx,lx);
+ return x;
+}
+weak_alias (__nextafterl, nextafterl)
diff --git a/sysdeps/libm-i387/s_rintl.S b/sysdeps/libm-i387/s_rintl.S
new file mode 100644
index 0000000..aec09a6
--- /dev/null
+++ b/sysdeps/libm-i387/s_rintl.S
@@ -0,0 +1,15 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+RCSID("$NetBSD: $")
+
+ENTRY(__rintl)
+ fldt 4(%esp)
+ frndint
+ ret
+weak_alias (__rintl, rintl)
diff --git a/sysdeps/libm-i387/s_significandl.S b/sysdeps/libm-i387/s_significandl.S
new file mode 100644
index 0000000..e512f54
--- /dev/null
+++ b/sysdeps/libm-i387/s_significandl.S
@@ -0,0 +1,16 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+RCSID("$NetBSD: $")
+
+ENTRY(__significandl)
+ fldt 4(%esp)
+ fxtract
+ fstpt %st(1)
+ ret
+weak_alias (__significandl, significandl)
generated by cgit v1.1 at 2024-12-29 15:05:24 +0000