409 lines
14 KiB
C
409 lines
14 KiB
C
/****************************************************************************
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* pinsn16.h
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* 16-bit P-code operation code definitions
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*
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* Copyright (C) 2008 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __PINSN16_H
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#define __PINSN16_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/* Op-code bit definitions */
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#define o16 (0x80)
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#define o8 (0x40)
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/* Opcode Encoding Summary:
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*
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* NO ARGS arg8 ONLY arg16 ONLY BOTH
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* 00xx xxxx 01xx xxxx 10xx xxxx 11xx xxxx
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* xx00 0000 NOP --- --- ---
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* xx00 0001 NEG --- --- ---
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* xx00 0010 ABS --- --- ---
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* xx00 0011 INC --- --- ---
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* xx00 0100 DEC --- --- ---
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* xx00 0101 NOT --- --- ---
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* xx00 0110 ADD --- --- ---
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* xx00 0111 SUB --- --- ---
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* xx00 1000 MUL --- --- PCAL l,ilbl
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* xx00 1001 DIV --- --- ---
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* xx00 1010 MOD --- --- ---
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* xx00 1011 SLL --- --- ---
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* xx00 1100 SRL --- --- ---
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* xx00 1101 SRA --- --- ---
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* xx00 1110 OR --- --- ---
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* xx00 1111 AND --- --- ---
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*
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* xx01 0000 EQUZ --- JEQUZ ilbl ---
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* xx01 0001 NEQZ --- JNEQZ ilbl ---
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* xx01 0010 LTZ --- JLTZ ilbl ---
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* xx01 0011 GTEZ --- JGTEZ ilbl ---
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* xx01 0100 GTZ --- JGTZ ilbl ---
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* xx01 0101 LTEZ --- JLTEZ ilbl ---
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* xx01 0110 --- --- JMP ilbl ---
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* xx01 0111 --- --- --- ---
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* xx01 1000 EQU --- JEQU ilbl ---
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* xx01 1001 NEQ --- JNEQ ilbl ---
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* xx01 1010 LT --- JLT ilbl ---
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* xx01 1011 GTE --- JGTE ilbl ---
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* xx01 1100 GT --- JGT ilbl ---
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* xx01 1101 LTE --- JLTE ilbl ---
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* xx01 1110 --- --- --- ---
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* xx01 1111 BIT --- --- ---
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*
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* xx10 0000 LDI --- LD uoffs LDS lvl,offs
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* xx10 0001 LDIH --- LDH uoffs LDSH lvl,offs
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* xx10 0010 LDIB --- LDB uoffs LDSB lvl,offs
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* xx10 0011 LDIM --- LDM uoffs LDSM lvl,offs
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* xx10 0100 STI --- ST uoffs STS lvl,offs
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* xx10 0101 STIH --- STH uoffs STSH lvl,offs
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* xx10 0110 STIB --- STB uoffs STSB lvl,offs
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* xx10 0111 STIM --- STM uoffs STSM lvl,offs
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* xx10 1000 DUP --- LDX uoffs LDSX lvl,offs
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* xx10 1001 DUPH --- LDXH uoffs LDSXH lvl,offs
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* xx10 1010 PUSHS --- LDXB uoffs LDSXB lvl,offs
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* xx10 1011 POPS --- LDXM uoffs LDSXM lvl,offs
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* xx10 1100 --- --- STX uoffs STSX lvl,offs
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* xx10 1101 --- --- STXH uoffs STSXH lvl,offs
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* xx10 1110 --- --- STXB uoffs STSXB lvl,offs
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* xx10 1111 RET --- STXM uoffs STSXM lvl,offs
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*
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* xx11 0000 --- FLOAT fop LA uoffs LAS lvl,offs
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* xx11 0001 --- --- LAC dlbl ---
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* xx11 0010 --- --- --- ---
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* xx11 0011 --- --- --- ---
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* xx11 0100 --- PUSHB n PUSH nn ---
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* xx11 0101 --- --- INDS nn ---
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* xx11 0110 --- --- --- ---
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* xx11 0111 --- --- --- ---
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* xx11 1000 --- --- LAX uoffs LASX lvl,offs
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* xx11 1001 --- --- LIB lop SYSIO fn,sop
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* xx11 1010 --- --- --- ---
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* xx11 1011 --- --- --- ---
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* xx11 1100 --- --- --- ---
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* xx11 1101 --- --- --- ---
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* xx11 1110 --- --- --- ---
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* xx11 1111 END --- *LABEL ilbl *LINE fn,lineno
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*
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* KEY:
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* n = 8-bit value (unsigned)
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* lvl = 8-bit static nesting level offset (unsigned)
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* vt = 8-bit type code (unsigned)
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* nn = 16-bit value (signed)
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* fop = 8-bit floating point operation
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* sop = 16-bit sysio operation
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* lop = 16-bit library call identifier
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* fn = 8-bit file number
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* ilbl = instruction space label
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* dlbl = stack data label
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* offs = 16-bit frame offset (signed)
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* uoffs = 16-bit base offset (unsigned)
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* c = string follows pseudo-operation
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* * = Indicates pseudo-operations (these are removed
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* after final fixup of the object file).
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*/
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/** OPCODES WITH NO ARGUMENTS ***********************************************/
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/* Program control (No stack arguments) */
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#define oNOP (0x00)
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/* Arithmetic & logical & and integer conversions (One 16-bit stack argument) */
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#define oNEG (0x01)
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#define oABS (0x02)
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#define oINC (0x03)
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#define oDEC (0x04)
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#define oNOT (0x05)
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/* Arithmetic & logical (Two 16-bit stack arguments) */
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#define oADD (0x06)
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#define oSUB (0x07)
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#define oMUL (0x08)
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#define oDIV (0x09)
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#define oMOD (0x0a)
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#define oSLL (0x0b)
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#define oSRL (0x0c)
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#define oSRA (0x0d)
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#define oOR (0x0e)
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#define oAND (0x0f)
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/* Comparisons (One 16-bit stack argument) */
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#define oEQUZ (0x10)
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#define oNEQZ (0x11)
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#define oLTZ (0x12)
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#define oGTEZ (0x13)
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#define oGTZ (0x14)
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#define oLTEZ (0x15)
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/* 0x16-0x17 -- unassigned */
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/* Comparisons (Two 16-bit stack arguments) */
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#define oEQU (0x18)
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#define oNEQ (0x19)
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#define oLT (0x1a)
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#define oGTE (0x1b)
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#define oGT (0x1c)
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#define oLTE (0x1d)
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/* 0x1e -- unassigned */
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#define oBIT (0x1f)
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/* Load Immediate */
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#define oLDI (0x20) /* (One 16-bit stack argument) */
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#define oLDIH (0x21) /* (One 16-bit stack argument) */
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#define oLDIB (0x22) /* (One 16-bit stack argument) */
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#define oLDIM (0x23) /* (Two 16-bit stack arguments) */
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/* Store Immediate */
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#define oSTI (0x24) /* (One 32-bit and one 16-bit stack arguments) */
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#define oSTIH (0x25) /* (Two 16-bit stack arguments) */
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#define oSTIB (0x26) /* (Two 16-bit stack arguments) */
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#define oSTIM (0x27) /* (Two + n 16-bit stack arguments) */
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/* Data stack */
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#define oDUP (0x28) /* (One 32-bit stack argument */
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#define oDUPH (0x29) /* (One 16-bit stack argument) */
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/* 0x2a - 0x2b -- unassigned */
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#define oPUSHS (0x2a) /* No arguments */
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#define oPOPS (0x2b) /* (One 16-bit stack argument) */
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/* 0x2c - 0x2e -- unassigned */
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/* Program control (No stack arguments)
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* Behavior:
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* Pop return address
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* Pop saved base register (BR)
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* Discard saved base address
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* Set program counter (PC) to return address
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*/
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#define oRET (0x2f)
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/* 0x30 - 0x3e -- unassigned */
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/* System Functions (No stack arguments) */
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#define oEND (0x3f)
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/** OPCODES WITH SINGLE BYTE ARGUMENT (arg8) ********************************/
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/* (o8|0x00)-(o8|0x2f) -- unassigned */
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/* Floating point operations: arg8 = FP op-code */
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#define oFLOAT (o8|0x30)
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/* (o8|0x31)-(o8|0x33) -- unassigned */
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/* Data stack: arg8 = 8 bit unsigned data (no stack arguments) */
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#define oPUSHB (o8|0x34)
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/* (o8|0x35)-(o8|0x3f) -- unassigned */
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/** OPCODES WITH SINGLE 16-BIT ARGUMENT (arg16) *****************************/
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/* (o16|0x00)-(o16|0x0f) -- unassigned */
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/* Program control: arg16 = unsigned label (One 16-bit stack argument) */
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#define oJEQUZ (o16|0x10)
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#define oJNEQZ (o16|0x11)
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#define oJLTZ (o16|0x12)
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#define oJGTEZ (o16|0x13)
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#define oJGTZ (o16|0x14)
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#define oJLTEZ (o16|0x15)
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/* Program control: arg16 = unsigned label (no stack arguments) */
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#define oJMP (o16|0x16)
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/* (o16|0x17) -- unassigned */
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/* Program control: arg16 = unsigned label (One 16-bit stack argument) */
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#define oJEQU (o16|0x18)
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#define oJNEQ (o16|0x19)
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#define oJLT (o16|0x1a)
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#define oJGTE (o16|0x1b)
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#define oJGT (o16|0x1c)
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#define oJLTE (o16|0x1d)
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/* (o16|0x1e)-(o16|0x1f) -- unassigned */
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/* Load: arg16 = unsigned base offset */
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#define oLD (o16|0x20) /* (no stack arguments) */
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#define oLDH (o16|0x21) /* (no stack arguments) */
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#define oLDB (o16|0x22) /* (no stack arguments) */
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#define oLDM (o16|0x23) /* (One 16-bit stack argument) */
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/* Store: arg16 = unsigned base offset */
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#define oST (o16|0x24) /* (One 32-bit stack argument) */
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#define oSTH (o16|0x25) /* (One 16-bit stack argument) */
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#define oSTB (o16|0x26) /* (One 16-bit stack argument) */
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#define oSTM (o16|0x27) /* (One+n 16-bit stack arguments) */
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/* Load Indexed: arg16 = unsigned base offset */
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#define oLDX (o16|0x28) /* (One 16-bit stack argument) */
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#define oLDXH (o16|0x29) /* (One 16-bit stack argument) */
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#define oLDXB (o16|0x2a) /* (One 16-bit stack argument) */
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#define oLDXM (o16|0x2b) /* (Two 16-bit stack arguments) */
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/* Store Indexed: arg16 = unsigned base offset */
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#define oSTX (o16|0x2c) /* (One 32-bit + one 16-bit stack arguments) */
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#define oSTXH (o16|0x2d) /* (Two 16-bit stack arguments) */
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#define oSTXB (o16|0x2e) /* (Two 16-bit stack arguments) */
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#define oSTXM (o16|0x2f) /* (Two+n 16-bit stack arguments) */
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/* Load address relative to stack base: arg16 = unsigned offset */
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#define oLA (o16|0x30)
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/* Load absolute stack address: arg16 = RODATA offset (No stack arguments) */
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#define oLAC (o16|0x31)
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/* (o16|0x32)-(o16|0x33) -- unassigned */
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/* Data stack: arg16 = 16 bit signed data (no stack arguments) */
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#define oPUSH (o16|0x34)
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#define oINDS (o16|0x35)
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/* (o16|0x34)-(o16|0x37) -- unassigned */
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/* Load address relative to stack base: arg16 = unsigned offset, TOS=index */
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#define oLAX (o16|0x38)
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/* System functions: arg16 = 16-bit library call identifier */
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#define oLIB (o16|0x39)
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/* (o16|0x3a)-(o16|0x3e) -- unassigned */
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/* Program control: arg16 = unsigned label (no stack arguments) */
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#define oLABEL (o16|0x3f)
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/** OPCODES WITH 24-BITS OF ARGUMENET (arg8 + arg16) ************************/
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/* (o16|o8|0x00)-(o8|o16|0x07) -- unassigned */
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/* Program Control: arg8 = level; arg16 = unsigned label
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* (No stack arguments)
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* Behavior:
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* Push base address of level
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* Push base register (BR) value
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* Set new base register value (BR) as top of stack
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* Push return address
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* Set program counter (PC) for address associated with label
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*/
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#define oPCAL (o16|o8|0x08)
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/* (o16|o8|0x09)-(o8|o16|0x1f) -- unassigned */
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/* Load: arg8 = level; arg16 = signed frame offset */
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#define oLDS (o16|o8|0x20) /* (no stack arguments) */
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#define oLDSH (o16|o8|0x21) /* (no stack arguments) */
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#define oLDSB (o16|o8|0x22) /* (no stack arguments) */
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#define oLDSM (o16|o8|0x23) /* (One 16-bit stack argument) */
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/* Store: arg8 = level; arg16 = signed frame offset */
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#define oSTS (o16|o8|0x24) /* (One 32-bit stack argument) */
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#define oSTSH (o16|o8|0x25) /* (One 16-bit stack argument) */
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#define oSTSB (o16|o8|0x26) /* (One 16-bit stack argument) */
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#define oSTSM (o16|o8|0x27) /* (One+n 16-bit stack arguments) */
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/* Load Indexed: arg8 = level; arg16 = signed frame offset */
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#define oLDSX (o16|o8|0x28) /* (One 16-bit stack argument) */
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#define oLDSXH (o16|o8|0x29) /* (One 16-bit stack argument) */
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#define oLDSXB (o16|o8|0x2a) /* (One 16-bit stack argument) */
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#define oLDSXM (o16|o8|0x2b) /* (Two 16-bit stack arguments) */
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/* Store Indexed: arg8 = level; arg16 = signed frame offset */
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#define oSTSX (o16|o8|0x2c) /* (One 32-bit + one 16-bit stack arguments) */
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#define oSTSXH (o16|o8|0x2d) /* (Two 16-bit stack arguments) */
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#define oSTSXB (o16|o8|0x2e) /* (Two 16-bit stack arguments) */
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#define oSTSXM (o16|o8|0x2f) /* (Two+n 16-bit stack arguments) */
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/* FOR LAS/LASX arg8 = level; arg16 = signed frame offset
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* (no stack arguments)
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*/
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#define oLAS (o16|o8|0x30)
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#define oLASX (o16|o8|0x38)
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/* System calls:
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* For SYSIO: arg8 = file number; arg16 = sub-function code
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*/
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#define oSYSIO (o16|o8|0x39)
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/* (o16|o8|0x3a)-(o8|o16|0x3e) -- unassigned */
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/* Pseudo-operations:
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* For LINE: arg8 = file number; arg16 = line number
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*/
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#define oLINE (o16|o8|0x3f)
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#endif /* __PINSN16_H */
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