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/***********************************************************************
* pfdefs.h
* Floating point operation codes
*
* Copyright (C) 2008 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
***********************************************************************/
#ifndef __PFDEFS_H
#define __PFDEFS_H
/**---------------------------------------------------------------------
FLOATING POINT SUB-OPCODES
---------------------------------------------------------------------**/
/* This bit may be set in the opcode to indicate that the arguments
* is(are) type integer and require(s) conversion. */
#define fpARG1 (0x40)
#define fpARG2 (0x80)
#define fpMASK (0x3f)
#define fpSHIFT 6
/* The "INVALID" floating point operation */
#define fpINVLD (0x00)
/* Floating Pointer Conversions (On 16-bit stack argument: FP or Integer) */
#define fpFLOAT (0x01)
#define fpTRUNC (0x02)
#define fpROUND (0x03)
/* Floating Point arithmetic instructions (Two FP 16-bit stack arguments) */
#define fpADD (0x04)
#define fpSUB (0x05)
#define fpMUL (0x06)
#define fpDIV (0x07)
#define fpMOD (0x08)
/* Floating Point Comparisons (Two FP 16-bit stack arguments) */
#define fpEQU (0x0a)
#define fpNEQ (0x0b)
#define fpLT (0x0c)
#define fpGTE (0x0d)
#define fpGT (0x0e)
#define fpLTE (0x0f)
/* Floating Point arithmetic instructions (One FP 16-bit stack arguments) */
#define fpNEG (0x10)
#define fpABS (0x11)
#define fpSQR (0x12)
#define fpSQRT (0x13)
#define fpSIN (0x14)
#define fpCOS (0x15)
#define fpATAN (0x16)
#define fpLN (0x17)
#define fpEXP (0x18)
#define MAX_FOP (0x19) /* Number of floating point operations */
#endif /* __PFDEFS_H */
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