88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
/* Simulator Floating-point support.
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Copyright (C) 1997 Free Software Foundation, Inc.
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Contributed by Cygnus Support.
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This file is part of GDB, the GNU debugger.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#ifndef _SIM_FPU_H_
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#define _SIM_FPU_H_
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/* the FPU intermediate type */
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typedef struct _sim_fpu {
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double val;
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} sim_fpu;
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/* Directly map a 32/64bit register quantity into the sim_fpu internal
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type ready for various arithmetic and conversion operations. */
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INLINE_SIM_FPU (sim_fpu) sim_fpu_32to (unsigned32 s);
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INLINE_SIM_FPU (sim_fpu) sim_fpu_64to (unsigned64 s);
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INLINE_SIM_FPU (unsigned32) sim_fpu_to32 (sim_fpu s);
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INLINE_SIM_FPU (unsigned64) sim_fpu_to64 (sim_fpu s);
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/* Arrithmetic operators */
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INLINE_SIM_FPU (sim_fpu) sim_fpu_add (sim_fpu l, sim_fpu r);
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INLINE_SIM_FPU (sim_fpu) sim_fpu_sub (sim_fpu l, sim_fpu r);
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INLINE_SIM_FPU (sim_fpu) sim_fpu_mul (sim_fpu l, sim_fpu r);
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INLINE_SIM_FPU (sim_fpu) sim_fpu_div (sim_fpu l, sim_fpu r);
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INLINE_SIM_FPU (sim_fpu) sim_fpu_inv (sim_fpu l);
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INLINE_SIM_FPU (sim_fpu) sim_fpu_sqrt (sim_fpu sqr);
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/* Conversion of integer value into floating point types */
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INLINE_SIM_FPU (sim_fpu) sim_fpu_i32to (signed32 s);
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INLINE_SIM_FPU (sim_fpu) sim_fpu_u32to (unsigned32 s);
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INLINE_SIM_FPU (sim_fpu) sim_fpu_i64to (signed64 s);
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INLINE_SIM_FPU (sim_fpu) sim_fpu_u64to (unsigned64 s);
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/* Conversion of internal sim_fpu type to host float and double
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formats - for debuging/tracing */
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INLINE_SIM_FPU (float) sim_fpu_2f (sim_fpu f);
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INLINE_SIM_FPU (double) sim_fpu_2d (sim_fpu d);
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#if 0
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INLINE_SIM_FPU (sim_fpu) sim_fpu_f2 (float f);
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INLINE_SIM_FPU (sim_fpu) sim_fpu_d2 (double d);
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#endif
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/* Signalling or NonSignalling NaN */
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INLINE_SIM_FPU (int) sim_fpu_is_nan (sim_fpu s);
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/* compare l with r; return <0, ==0, >0 accordingly */
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INLINE_SIM_FPU (int) sim_fpu_is_lt (sim_fpu l, sim_fpu r);
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INLINE_SIM_FPU (int) sim_fpu_is_le (sim_fpu l, sim_fpu r);
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INLINE_SIM_FPU (int) sim_fpu_is_eq (sim_fpu l, sim_fpu r);
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INLINE_SIM_FPU (int) sim_fpu_is_ne (sim_fpu l, sim_fpu r);
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INLINE_SIM_FPU (int) sim_fpu_is_ge (sim_fpu l, sim_fpu r);
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INLINE_SIM_FPU (int) sim_fpu_is_gt (sim_fpu l, sim_fpu r);
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#endif
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