/****************************************************************************
* pinsn16.h
* 16-bit P-code operation code definitions
*
* Copyright (C) 2008 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 __PINSN16_H
#define __PINSN16_H
/****************************************************************************
* Included Files
****************************************************************************/
/****************************************************************************
* Definitions
****************************************************************************/
/* Op-code bit definitions */
#define o16 (0x80)
#define o8 (0x40)
/* Opcode Encoding Summary:
*
* NO ARGS arg8 ONLY arg16 ONLY BOTH
* 00xx xxxx 01xx xxxx 10xx xxxx 11xx xxxx
* xx00 0000 NOP --- --- ---
* xx00 0001 NEG --- --- ---
* xx00 0010 ABS --- --- ---
* xx00 0011 INC --- --- ---
* xx00 0100 DEC --- --- ---
* xx00 0101 NOT --- --- ---
* xx00 0110 ADD --- --- ---
* xx00 0111 SUB --- --- ---
* xx00 1000 MUL --- --- PCAL l,ilbl
* xx00 1001 DIV --- --- ---
* xx00 1010 MOD --- --- ---
* xx00 1011 SLL --- --- ---
* xx00 1100 SRL --- --- ---
* xx00 1101 SRA --- --- ---
* xx00 1110 OR --- --- ---
* xx00 1111 AND --- --- ---
*
* xx01 0000 EQUZ --- JEQUZ ilbl ---
* xx01 0001 NEQZ --- JNEQZ ilbl ---
* xx01 0010 LTZ --- JLTZ ilbl ---
* xx01 0011 GTEZ --- JGTEZ ilbl ---
* xx01 0100 GTZ --- JGTZ ilbl ---
* xx01 0101 LTEZ --- JLTEZ ilbl ---
* xx01 0110 --- --- JMP ilbl ---
* xx01 0111 --- --- --- ---
* xx01 1000 EQU --- JEQU ilbl ---
* xx01 1001 NEQ --- JNEQ ilbl ---
* xx01 1010 LT --- JLT ilbl ---
* xx01 1011 GTE --- JGTE ilbl ---
* xx01 1100 GT --- JGT ilbl ---
* xx01 1101 LTE --- JLTE ilbl ---
* xx01 1110 --- --- --- ---
* xx01 1111 BIT --- --- ---
*
* xx10 0000 LDI --- LD uoffs LDS lvl,offs
* xx10 0001 LDIH --- LDH uoffs LDSH lvl,offs
* xx10 0010 LDIB --- LDB uoffs LDSB lvl,offs
* xx10 0011 LDIM --- LDM uoffs LDSM lvl,offs
* xx10 0100 STI --- ST uoffs STS lvl,offs
* xx10 0101 STIH --- STH uoffs STSH lvl,offs
* xx10 0110 STIB --- STB uoffs STSB lvl,offs
* xx10 0111 STIM --- STM uoffs STSM lvl,offs
* xx10 1000 DUP --- LDX uoffs LDSX lvl,offs
* xx10 1001 DUPH --- LDXH uoffs LDSXH lvl,offs
* xx10 1010 PUSHS --- LDXB uoffs LDSXB lvl,offs
* xx10 1011 POPS --- LDXM uoffs LDSXM lvl,offs
* xx10 1100 --- --- STX uoffs STSX lvl,offs
* xx10 1101 --- --- STXH uoffs STSXH lvl,offs
* xx10 1110 --- --- STXB uoffs STSXB lvl,offs
* xx10 1111 RET --- STXM uoffs STSXM lvl,offs
*
* xx11 0000 --- FLOAT fop LA uoffs LAS lvl,offs
* xx11 0001 --- --- LAC dlbl ---
* xx11 0010 --- --- --- ---
* xx11 0011 --- --- --- ---
* xx11 0100 --- PUSHB n PUSH nn ---
* xx11 0101 --- --- INDS nn ---
* xx11 0110 --- --- --- ---
* xx11 0111 --- --- --- ---
* xx11 1000 --- --- LAX uoffs LASX lvl,offs
* xx11 1001 --- --- LIB lop SYSIO fn,sop
* xx11 1010 --- --- --- ---
* xx11 1011 --- --- --- ---
* xx11 1100 --- --- --- ---
* xx11 1101 --- --- --- ---
* xx11 1110 --- --- --- ---
* xx11 1111 END --- *LABEL ilbl *LINE fn,lineno
*
* KEY:
* n = 8-bit value (unsigned)
* lvl = 8-bit static nesting level offset (unsigned)
* vt = 8-bit type code (unsigned)
* nn = 16-bit value (signed)
* fop = 8-bit floating point operation
* sop = 16-bit sysio operation
* lop = 16-bit library call identifier
* fn = 8-bit file number
* ilbl = instruction space label
* dlbl = stack data label
* offs = 16-bit frame offset (signed)
* uoffs = 16-bit base offset (unsigned)
* c = string follows pseudo-operation
* * = Indicates pseudo-operations (these are removed
* after final fixup of the object file).
*/
/** OPCODES WITH NO ARGUMENTS ***********************************************/
/* Program control (No stack arguments) */
#define oNOP (0x00)
/* Arithmetic & logical & and integer conversions (One 16-bit stack argument) */
#define oNEG (0x01)
#define oABS (0x02)
#define oINC (0x03)
#define oDEC (0x04)
#define oNOT (0x05)
/* Arithmetic & logical (Two 16-bit stack arguments) */
#define oADD (0x06)
#define oSUB (0x07)
#define oMUL (0x08)
#define oDIV (0x09)
#define oMOD (0x0a)
#define oSLL (0x0b)
#define oSRL (0x0c)
#define oSRA (0x0d)
#define oOR (0x0e)
#define oAND (0x0f)
/* Comparisons (One 16-bit stack argument) */
#define oEQUZ (0x10)
#define oNEQZ (0x11)
#define oLTZ (0x12)
#define oGTEZ (0x13)
#define oGTZ (0x14)
#define oLTEZ (0x15)
/* 0x16-0x17 -- unassigned */
/* Comparisons (Two 16-bit stack arguments) */
#define oEQU (0x18)
#define oNEQ (0x19)
#define oLT (0x1a)
#define oGTE (0x1b)
#define oGT (0x1c)
#define oLTE (0x1d)
/* 0x1e -- unassigned */
#define oBIT (0x1f)
/* Load Immediate */
#define oLDI (0x20) /* (One 16-bit stack argument) */
#define oLDIH (0x21) /* (One 16-bit stack argument) */
#define oLDIB (0x22) /* (One 16-bit stack argument) */
#define oLDIM (0x23) /* (Two 16-bit stack arguments) */
/* Store Immediate */
#define oSTI (0x24) /* (One 32-bit and one 16-bit stack arguments) */
#define oSTIH (0x25) /* (Two 16-bit stack arguments) */
#define oSTIB (0x26) /* (Two 16-bit stack arguments) */
#define oSTIM (0x27) /* (Two + n 16-bit stack arguments) */
/* Data stack */
#define oDUP (0x28) /* (One 32-bit stack argument */
#define oDUPH (0x29) /* (One 16-bit stack argument) */
/* 0x2a - 0x2b -- unassigned */
#define oPUSHS (0x2a) /* No arguments */
#define oPOPS (0x2b) /* (One 16-bit stack argument) */
/* 0x2c - 0x2e -- unassigned */
/* Program control (No stack arguments)
* Behavior:
* Pop return address
* Pop saved base register (BR)
* Discard saved base address
* Set program counter (PC) to return address
*/
#define oRET (0x2f)
/* 0x30 - 0x3e -- unassigned */
/* System Functions (No stack arguments) */
#define oEND (0x3f)
/** OPCODES WITH SINGLE BYTE ARGUMENT (arg8) ********************************/
/* (o8|0x00)-(o8|0x2f) -- unassigned */
/* Floating point operations: arg8 = FP op-code */
#define oFLOAT (o8|0x30)
/* (o8|0x31)-(o8|0x33) -- unassigned */
/* Data stack: arg8 = 8 bit unsigned data (no stack arguments) */
#define oPUSHB (o8|0x34)
/* (o8|0x35)-(o8|0x3f) -- unassigned */
/** OPCODES WITH SINGLE 16-BIT ARGUMENT (arg16) *****************************/
/* (o16|0x00)-(o16|0x0f) -- unassigned */
/* Program control: arg16 = unsigned label (One 16-bit stack argument) */
#define oJEQUZ (o16|0x10)
#define oJNEQZ (o16|0x11)
#define oJLTZ (o16|0x12)
#define oJGTEZ (o16|0x13)
#define oJGTZ (o16|0x14)
#define oJLTEZ (o16|0x15)
/* Program control: arg16 = unsigned label (no stack arguments) */
#define oJMP (o16|0x16)
/* (o16|0x17) -- unassigned */
/* Program control: arg16 = unsigned label (One 16-bit stack argument) */
#define oJEQU (o16|0x18)
#define oJNEQ (o16|0x19)
#define oJLT (o16|0x1a)
#define oJGTE (o16|0x1b)
#define oJGT (o16|0x1c)
#define oJLTE (o16|0x1d)
/* (o16|0x1e)-(o16|0x1f) -- unassigned */
/* Load: arg16 = unsigned base offset */
#define oLD (o16|0x20) /* (no stack arguments) */
#define oLDH (o16|0x21) /* (no stack arguments) */
#define oLDB (o16|0x22) /* (no stack arguments) */
#define oLDM (o16|0x23) /* (One 16-bit stack argument) */
/* Store: arg16 = unsigned base offset */
#define oST (o16|0x24) /* (One 32-bit stack argument) */
#define oSTH (o16|0x25) /* (One 16-bit stack argument) */
#define oSTB (o16|0x26) /* (One 16-bit stack argument) */
#define oSTM (o16|0x27) /* (One+n 16-bit stack arguments) */
/* Load Indexed: arg16 = unsigned base offset */
#define oLDX (o16|0x28) /* (One 16-bit stack argument) */
#define oLDXH (o16|0x29) /* (One 16-bit stack argument) */
#define oLDXB (o16|0x2a) /* (One 16-bit stack argument) */
#define oLDXM (o16|0x2b) /* (Two 16-bit stack arguments) */
/* Store Indexed: arg16 = unsigned base offset */
#define oSTX (o16|0x2c) /* (One 32-bit + one 16-bit stack arguments) */
#define oSTXH (o16|0x2d) /* (Two 16-bit stack arguments) */
#define oSTXB (o16|0x2e) /* (Two 16-bit stack arguments) */
#define oSTXM (o16|0x2f) /* (Two+n 16-bit stack arguments) */
/* Load address relative to stack base: arg16 = unsigned offset */
#define oLA (o16|0x30)
/* Load absolute stack address: arg16 = RODATA offset (No stack arguments) */
#define oLAC (o16|0x31)
/* (o16|0x32)-(o16|0x33) -- unassigned */
/* Data stack: arg16 = 16 bit signed data (no stack arguments) */
#define oPUSH (o16|0x34)
#define oINDS (o16|0x35)
/* (o16|0x34)-(o16|0x37) -- unassigned */
/* Load address relative to stack base: arg16 = unsigned offset, TOS=index */
#define oLAX (o16|0x38)
/* System functions: arg16 = 16-bit library call identifier */
#define oLIB (o16|0x39)
/* (o16|0x3a)-(o16|0x3e) -- unassigned */
/* Program control: arg16 = unsigned label (no stack arguments) */
#define oLABEL (o16|0x3f)
/** OPCODES WITH 24-BITS OF ARGUMENET (arg8 + arg16) ************************/
/* (o16|o8|0x00)-(o8|o16|0x07) -- unassigned */
/* Program Control: arg8 = level; arg16 = unsigned label
* (No stack arguments)
* Behavior:
* Push base address of level
* Push base register (BR) value
* Set new base register value (BR) as top of stack
* Push return address
* Set program counter (PC) for address associated with label
*/
#define oPCAL (o16|o8|0x08)
/* (o16|o8|0x09)-(o8|o16|0x1f) -- unassigned */
/* Load: arg8 = level; arg16 = signed frame offset */
#define oLDS (o16|o8|0x20) /* (no stack arguments) */
#define oLDSH (o16|o8|0x21) /* (no stack arguments) */
#define oLDSB (o16|o8|0x22) /* (no stack arguments) */
#define oLDSM (o16|o8|0x23) /* (One 16-bit stack argument) */
/* Store: arg8 = level; arg16 = signed frame offset */
#define oSTS (o16|o8|0x24) /* (One 32-bit stack argument) */
#define oSTSH (o16|o8|0x25) /* (One 16-bit stack argument) */
#define oSTSB (o16|o8|0x26) /* (One 16-bit stack argument) */
#define oSTSM (o16|o8|0x27) /* (One+n 16-bit stack arguments) */
/* Load Indexed: arg8 = level; arg16 = signed frame offset */
#define oLDSX (o16|o8|0x28) /* (One 16-bit stack argument) */
#define oLDSXH (o16|o8|0x29) /* (One 16-bit stack argument) */
#define oLDSXB (o16|o8|0x2a) /* (One 16-bit stack argument) */
#define oLDSXM (o16|o8|0x2b) /* (Two 16-bit stack arguments) */
/* Store Indexed: arg8 = level; arg16 = signed frame offset */
#define oSTSX (o16|o8|0x2c) /* (One 32-bit + one 16-bit stack arguments) */
#define oSTSXH (o16|o8|0x2d) /* (Two 16-bit stack arguments) */
#define oSTSXB (o16|o8|0x2e) /* (Two 16-bit stack arguments) */
#define oSTSXM (o16|o8|0x2f) /* (Two+n 16-bit stack arguments) */
/* FOR LAS/LASX arg8 = level; arg16 = signed frame offset
* (no stack arguments)
*/
#define oLAS (o16|o8|0x30)
#define oLASX (o16|o8|0x38)
/* System calls:
* For SYSIO: arg8 = file number; arg16 = sub-function code
*/
#define oSYSIO (o16|o8|0x39)
/* (o16|o8|0x3a)-(o8|o16|0x3e) -- unassigned */
/* Pseudo-operations:
* For LINE: arg8 = file number; arg16 = line number
*/
#define oLINE (o16|o8|0x3f)
#endif /* __PINSN16_H */
