Add flakey floating-point support to the TI c80 simulator.

1 files changed, 68 insertions, 0 deletions

diff --git a/sim/common/sim-fpu.h b/sim/common/sim-fpu.h
new file mode 100644
index 0000000..a40b4c9
--- /dev/null
+++ b/sim/common/sim-fpu.h
@@ -0,0 +1,68 @@
+/* Simulator Floating-point support.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   Contributed by Cygnus Support.
+
+This file is part of GDB, the GNU debugger.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+This program 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+
+
+#ifndef _SIM_FPU_H_
+#define _SIM_FPU_H_
+
+/* the FPU intermediate type */
+
+typedef struct _sim_fpu {
+  double val;
+} sim_fpu;
+
+
+/* Arrithmetic operators */
+
+INLINE_SIM_FPU (sim_fpu) sim_fpu_add (sim_fpu l, sim_fpu r);
+INLINE_SIM_FPU (sim_fpu) sim_fpu_sub (sim_fpu l, sim_fpu r);
+INLINE_SIM_FPU (sim_fpu) sim_fpu_mul (sim_fpu l, sim_fpu r);
+INLINE_SIM_FPU (sim_fpu) sim_fpu_div (sim_fpu l, sim_fpu r);
+INLINE_SIM_FPU (sim_fpu) sim_fpu_inv (sim_fpu l);
+INLINE_SIM_FPU (sim_fpu) sim_fpu_sqrt (sim_fpu sqr);
+
+
+/* Conversions single/double to/from fpu type */
+
+INLINE_SIM_FPU (sim_fpu) sim_fpu_32to (unsigned32 s);
+INLINE_SIM_FPU (sim_fpu) sim_fpu_64to (unsigned64 s);
+
+INLINE_SIM_FPU (unsigned32) sim_fpu_to32 (sim_fpu s);
+INLINE_SIM_FPU (unsigned64) sim_fpu_to64 (sim_fpu s);
+
+INLINE_SIM_FPU (float) sim_fpu_2f (sim_fpu f);
+INLINE_SIM_FPU (double) sim_fpu_2d (sim_fpu d);
+
+INLINE_SIM_FPU (sim_fpu) sim_fpu_f2 (float f);
+INLINE_SIM_FPU (sim_fpu) sim_fpu_d2 (double d);
+
+
+/* Signalling or NonSignalling NaN */
+
+INLINE_SIM_FPU (int) sim_fpu_is_nan (sim_fpu s);
+
+
+/* compare l with r; return <0, ==0, >0 accordingly */
+
+INLINE_SIM_FPU (int) sim_fpu_cmp (sim_fpu l, sim_fpu r);
+
+
+#endif