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------------------------------------------------------------------------------
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-- This file is a part of the GRLIB VHDL IP LIBRARY
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-- Copyright (C) 2003 - 2008, Gaisler Research
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-- Copyright (C) 2008 - 2010, Aeroflex Gaisler
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--
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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 of the License, or
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-- (at your option) any later version.
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--
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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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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program; if not, write to the Free Software
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-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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-----------------------------------------------------------------------------
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-- package: opcodes
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-- File: opcodes.vhd
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-- Author: Jiri Gaisler
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-- Description: Instruction definitions according to the SPARC V8 manual.
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------------------------------------------------------------------------------
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library ieee;
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use ieee.std_logic_1164.all;
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package sparc is
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-- op decoding (inst(31 downto 30))
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subtype op_type is std_logic_vector(1 downto 0);
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constant FMT2 : op_type := "00";
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constant CALL : op_type := "01";
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constant FMT3 : op_type := "10";
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constant LDST : op_type := "11";
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-- op2 decoding (inst(24 downto 22))
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subtype op2_type is std_logic_vector(2 downto 0);
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constant UNIMP : op2_type := "000";
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constant BICC : op2_type := "010";
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constant SETHI : op2_type := "100";
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constant FBFCC : op2_type := "110";
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constant CBCCC : op2_type := "111";
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-- op3 decoding (inst(24 downto 19))
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subtype op3_type is std_logic_vector(5 downto 0);
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constant IADD : op3_type := "000000";
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constant IAND : op3_type := "000001";
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constant IOR : op3_type := "000010";
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constant IXOR : op3_type := "000011";
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constant ISUB : op3_type := "000100";
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constant ANDN : op3_type := "000101";
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constant ORN : op3_type := "000110";
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constant IXNOR : op3_type := "000111";
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constant ADDX : op3_type := "001000";
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constant UMUL : op3_type := "001010";
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constant SMUL : op3_type := "001011";
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constant SUBX : op3_type := "001100";
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constant UDIV : op3_type := "001110";
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constant SDIV : op3_type := "001111";
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constant ADDCC : op3_type := "010000";
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constant ANDCC : op3_type := "010001";
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constant ORCC : op3_type := "010010";
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constant XORCC : op3_type := "010011";
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constant SUBCC : op3_type := "010100";
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constant ANDNCC : op3_type := "010101";
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constant ORNCC : op3_type := "010110";
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constant XNORCC : op3_type := "010111";
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constant ADDXCC : op3_type := "011000";
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constant UMULCC : op3_type := "011010";
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constant SMULCC : op3_type := "011011";
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constant SUBXCC : op3_type := "011100";
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constant UDIVCC : op3_type := "011110";
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constant SDIVCC : op3_type := "011111";
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constant TADDCC : op3_type := "100000";
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constant TSUBCC : op3_type := "100001";
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constant TADDCCTV : op3_type := "100010";
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constant TSUBCCTV : op3_type := "100011";
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constant MULSCC : op3_type := "100100";
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constant ISLL : op3_type := "100101";
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constant ISRL : op3_type := "100110";
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constant ISRA : op3_type := "100111";
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constant RDY : op3_type := "101000";
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constant RDPSR : op3_type := "101001";
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constant RDWIM : op3_type := "101010";
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constant RDTBR : op3_type := "101011";
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constant WRY : op3_type := "110000";
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constant WRPSR : op3_type := "110001";
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constant WRWIM : op3_type := "110010";
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constant WRTBR : op3_type := "110011";
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constant FPOP1 : op3_type := "110100";
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constant FPOP2 : op3_type := "110101";
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constant CPOP1 : op3_type := "110110";
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constant CPOP2 : op3_type := "110111";
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constant JMPL : op3_type := "111000";
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constant TICC : op3_type := "111010";
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constant FLUSH : op3_type := "111011";
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constant RETT : op3_type := "111001";
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constant SAVE : op3_type := "111100";
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constant RESTORE : op3_type := "111101";
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constant UMAC : op3_type := "111110";
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constant SMAC : op3_type := "111111";
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constant LD : op3_type := "000000";
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constant LDUB : op3_type := "000001";
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constant LDUH : op3_type := "000010";
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constant LDD : op3_type := "000011";
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constant LDSB : op3_type := "001001";
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constant LDSH : op3_type := "001010";
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constant LDSTUB : op3_type := "001101";
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constant SWAP : op3_type := "001111";
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constant LDA : op3_type := "010000";
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constant LDUBA : op3_type := "010001";
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constant LDUHA : op3_type := "010010";
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constant LDDA : op3_type := "010011";
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constant LDSBA : op3_type := "011001";
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constant LDSHA : op3_type := "011010";
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constant LDSTUBA : op3_type := "011101";
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constant SWAPA : op3_type := "011111";
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constant LDF : op3_type := "100000";
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constant LDFSR : op3_type := "100001";
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constant LDDF : op3_type := "100011";
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constant LDC : op3_type := "110000";
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constant LDCSR : op3_type := "110001";
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constant LDDC : op3_type := "110011";
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constant ST : op3_type := "000100";
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constant STB : op3_type := "000101";
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constant STH : op3_type := "000110";
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constant ISTD : op3_type := "000111";
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constant STA : op3_type := "010100";
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constant STBA : op3_type := "010101";
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constant STHA : op3_type := "010110";
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constant STDA : op3_type := "010111";
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constant STF : op3_type := "100100";
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constant STFSR : op3_type := "100101";
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constant STDFQ : op3_type := "100110";
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constant STDF : op3_type := "100111";
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constant STC : op3_type := "110100";
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constant STCSR : op3_type := "110101";
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constant STDCQ : op3_type := "110110";
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constant STDC : op3_type := "110111";
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constant CASA : op3_type := "111100";
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-- bicc decoding (inst(27 downto 25))
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constant BA : std_logic_vector(3 downto 0) := "1000";
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-- fpop1 decoding
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subtype fpop_type is std_logic_vector(8 downto 0);
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constant FITOS : fpop_type := "011000100";
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constant FITOD : fpop_type := "011001000";
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constant FSTOI : fpop_type := "011010001";
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constant FDTOI : fpop_type := "011010010";
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constant FSTOD : fpop_type := "011001001";
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constant FDTOS : fpop_type := "011000110";
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constant FMOVS : fpop_type := "000000001";
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constant FNEGS : fpop_type := "000000101";
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constant FABSS : fpop_type := "000001001";
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constant FSQRTS : fpop_type := "000101001";
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constant FSQRTD : fpop_type := "000101010";
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constant FADDS : fpop_type := "001000001";
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constant FADDD : fpop_type := "001000010";
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constant FSUBS : fpop_type := "001000101";
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constant FSUBD : fpop_type := "001000110";
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constant FMULS : fpop_type := "001001001";
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constant FMULD : fpop_type := "001001010";
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constant FSMULD : fpop_type := "001101001";
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constant FDIVS : fpop_type := "001001101";
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constant FDIVD : fpop_type := "001001110";
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-- fpop2 decoding
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constant FCMPS : fpop_type := "001010001";
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constant FCMPD : fpop_type := "001010010";
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constant FCMPES : fpop_type := "001010101";
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constant FCMPED : fpop_type := "001010110";
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-- trap type decoding
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subtype trap_type is std_logic_vector(5 downto 0);
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constant TT_IAEX : trap_type := "000001";
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constant TT_IINST : trap_type := "000010";
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constant TT_PRIV : trap_type := "000011";
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constant TT_FPDIS : trap_type := "000100";
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constant TT_WINOF : trap_type := "000101";
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constant TT_WINUF : trap_type := "000110";
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constant TT_UNALA : trap_type := "000111";
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constant TT_FPEXC : trap_type := "001000";
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constant TT_DAEX : trap_type := "001001";
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constant TT_TAG : trap_type := "001010";
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constant TT_WATCH : trap_type := "001011";
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constant TT_DSU : trap_type := "010000";
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constant TT_PWD : trap_type := "010001";
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constant TT_RFERR : trap_type := "100000";
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constant TT_IAERR : trap_type := "100001";
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constant TT_CPDIS : trap_type := "100100";
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constant TT_CPEXC : trap_type := "101000";
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constant TT_DIV : trap_type := "101010";
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constant TT_DSEX : trap_type := "101011";
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constant TT_TICC : trap_type := "111111";
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constant TT_ICERR : trap_type := "110000"; -- icache correctable error
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constant TT_DCERR : trap_type := "110100"; -- dcache correctable error
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constant TT_RCERR : trap_type := "111000"; -- RF correctable error
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-- Alternate address space identifiers (only 5 lsb bist are used)
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subtype asi_type is std_logic_vector(4 downto 0);
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constant ASI_SYSR : asi_type := "00010"; -- 0x02
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constant ASI_UINST : asi_type := "01000"; -- 0x08
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constant ASI_SINST : asi_type := "01001"; -- 0x09
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constant ASI_UDATA : asi_type := "01010"; -- 0x0A
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constant ASI_SDATA : asi_type := "01011"; -- 0x0B
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constant ASI_ITAG : asi_type := "01100"; -- 0x0C
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constant ASI_IDATA : asi_type := "01101"; -- 0x0D
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constant ASI_DTAG : asi_type := "01110"; -- 0x0E
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constant ASI_DDATA : asi_type := "01111"; -- 0x0F
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constant ASI_IFLUSH : asi_type := "10000"; -- 0x10
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constant ASI_DFLUSH : asi_type := "10001"; -- 0x11
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constant ASI_FLUSH_PAGE : std_logic_vector(4 downto 0) := "10000"; -- 0x10 i/dcache flush page
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constant ASI_FLUSH_CTX : std_logic_vector(4 downto 0) := "10011"; -- 0x13 i/dcache flush ctx
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constant ASI_DCTX : std_logic_vector(4 downto 0) := "10100"; -- 0x14 dcache ctx
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constant ASI_ICTX : std_logic_vector(4 downto 0) := "10101"; -- 0x15 icache ctx
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constant ASI_MMUFLUSHPROBE : std_logic_vector(4 downto 0) := "11000"; -- 0x18 i/dtlb flush/(probe)
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constant ASI_MMUREGS : std_logic_vector(4 downto 0) := "11001"; -- 0x19 mmu regs access
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constant ASI_MMU_BP : std_logic_vector(4 downto 0) := "11100"; -- 0x1c mmu Bypass
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constant ASI_MMU_DIAG : std_logic_vector(4 downto 0) := "11101"; -- 0x1d mmu diagnostic
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--constant ASI_MMU_DSU : std_logic_vector(4 downto 0) := "11111"; -- 0x1f mmu diagnostic
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constant ASI_MMUSNOOP_DTAG : std_logic_vector(4 downto 0) := "11110"; -- 0x1e mmusnoop physical dtag
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-- ftt decoding
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subtype ftt_type is std_logic_vector(2 downto 0);
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constant FPIEEE_ERR : ftt_type := "001";
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constant FPSEQ_ERR : ftt_type := "100";
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constant FPHW_ERR : ftt_type := "101";
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end;
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