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authorAndrew Cagney <cagney@redhat.com>2003-06-22 13:36:26 +0000
committerAndrew Cagney <cagney@redhat.com>2003-06-22 13:36:26 +0000
commit1f1b28179f4ddd66baa43256a12d2d03840d1690 (patch)
treeeb5278f504492bd32c9c980e1a5aa49a07983de0 /sim
parent4056a1ef290ee8ec943d53888b14c5d29fd15bef (diff)
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2003-06-22 Andrew Cagney <cagney@redhat.com>
From matthew green <mrg@redhat.com>: * sim-fpu.h: Update copyright. (sim_fpu_fraction, sim_fpu_guard): New prototypes. * sim-fpu.c: Update copyright. (sim_fpu_fraction, sim_fpu_guard): New inline functions.
Diffstat (limited to 'sim')
-rw-r--r--sim/common/ChangeLog8
-rw-r--r--sim/common/sim-fpu.c46
-rw-r--r--sim/common/sim-fpu.h8
3 files changed, 32 insertions, 30 deletions
diff --git a/sim/common/ChangeLog b/sim/common/ChangeLog
index 83b4556..9417d32 100644
--- a/sim/common/ChangeLog
+++ b/sim/common/ChangeLog
@@ -1,3 +1,11 @@
+2003-06-22 Andrew Cagney <cagney@redhat.com>
+
+ From matthew green <mrg@redhat.com>:
+ * sim-fpu.h: Update copyright.
+ (sim_fpu_fraction, sim_fpu_guard): New prototypes.
+ * sim-fpu.c: Update copyright.
+ (sim_fpu_fraction, sim_fpu_guard): New inline functions.
+
2003-06-17 Frank Ch. Eigler <fche@redhat.com>
From Doug Evans <dje@sebabeach.org>:
diff --git a/sim/common/sim-fpu.c b/sim/common/sim-fpu.c
index 28d61a5..845248a 100644
--- a/sim/common/sim-fpu.c
+++ b/sim/common/sim-fpu.c
@@ -2,7 +2,7 @@
of the floating point routines in libgcc1.c for targets without
hardware floating point. */
-/* Copyright (C) 1994,1997-1998 Free Software Foundation, Inc.
+/* Copyright 1994, 1997, 1998, 2003 Free Software Foundation, Inc.
This file is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
@@ -1754,33 +1754,7 @@ INLINE_SIM_FPU (int)
sim_fpu_inv (sim_fpu *f,
const sim_fpu *r)
{
- if (sim_fpu_is_snan (r))
- {
- *f = *r;
- f->class = sim_fpu_class_qnan;
- return sim_fpu_status_invalid_snan;
- }
- if (sim_fpu_is_qnan (r))
- {
- *f = *r;
- f->class = sim_fpu_class_qnan;
- return 0;
- }
- if (sim_fpu_is_infinity (r))
- {
- *f = sim_fpu_zero;
- f->sign = r->sign;
- return 0;
- }
- if (sim_fpu_is_zero (r))
- {
- f->class = sim_fpu_class_infinity;
- f->sign = r->sign;
- return sim_fpu_status_invalid_div0;
- }
- *f = *r;
- f->normal_exp = - r->normal_exp;
- return 0;
+ return sim_fpu_div (f, &sim_fpu_one, r);
}
@@ -2214,6 +2188,22 @@ sim_fpu_exp (const sim_fpu *d)
}
+INLINE_SIM_FPU (unsigned64)
+sim_fpu_fraction (const sim_fpu *d)
+{
+ return d->fraction;
+}
+
+
+INLINE_SIM_FPU (unsigned64)
+sim_fpu_guard (const sim_fpu *d, int is_double)
+{
+ unsigned64 rv;
+ unsigned64 guardmask = LSMASK64 (NR_GUARDS - 1, 0);
+ rv = (d->fraction & guardmask) >> NR_PAD;
+ return rv;
+}
+
INLINE_SIM_FPU (int)
sim_fpu_is (const sim_fpu *d)
diff --git a/sim/common/sim-fpu.h b/sim/common/sim-fpu.h
index 755e194..579fbaa 100644
--- a/sim/common/sim-fpu.h
+++ b/sim/common/sim-fpu.h
@@ -1,5 +1,7 @@
/* Simulator Floating-point support.
- Copyright (C) 1997, 1998, 2002 Free Software Foundation, Inc.
+
+ Copyright 1997, 1998, 2002, 2003 Free Software Foundation, Inc.
+
Contributed by Cygnus Support.
This file is part of GDB, the GNU debugger.
@@ -42,7 +44,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
For unpacked structures (passed by value and reference), the code
quality of GCC-2.7 (on x86) for each alternative was compared.
- Needless to say the results, while better then for a packed 64 bit
+ Needless to say the results, while better than for a packed 64 bit
object, were still poor (GCC had only limited support for the
optimization of references to structure members). Regardless, the
struct-by-ref alternative achieved better results when compiled
@@ -316,6 +318,8 @@ INLINE_SIM_FPU (int) sim_fpu_is_denorm (const sim_fpu *s); /* !zero */
INLINE_SIM_FPU (int) sim_fpu_sign (const sim_fpu *s);
INLINE_SIM_FPU (int) sim_fpu_exp (const sim_fpu *s);
+INLINE_SIM_FPU (unsigned64) sim_fpu_fraction (const sim_fpu *s);
+INLINE_SIM_FPU (unsigned64) sim_fpu_guard (const sim_fpu *s, int is_double);