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sparc.vhd
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r100 ------------------------------------------------------------------------------
-- This file is a part of the GRLIB VHDL IP LIBRARY
-- Copyright (C) 2003 - 2008, Gaisler Research
-- Copyright (C) 2008 - 2010, Aeroflex Gaisler
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 2 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-----------------------------------------------------------------------------
-- package: opcodes
-- File: opcodes.vhd
-- Author: Jiri Gaisler
-- Description: Instruction definitions according to the SPARC V8 manual.
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
package sparc is
-- op decoding (inst(31 downto 30))
subtype op_type is std_logic_vector(1 downto 0);
constant FMT2 : op_type := "00";
constant CALL : op_type := "01";
constant FMT3 : op_type := "10";
constant LDST : op_type := "11";
-- op2 decoding (inst(24 downto 22))
subtype op2_type is std_logic_vector(2 downto 0);
constant UNIMP : op2_type := "000";
constant BICC : op2_type := "010";
constant SETHI : op2_type := "100";
constant FBFCC : op2_type := "110";
constant CBCCC : op2_type := "111";
-- op3 decoding (inst(24 downto 19))
subtype op3_type is std_logic_vector(5 downto 0);
constant IADD : op3_type := "000000";
constant IAND : op3_type := "000001";
constant IOR : op3_type := "000010";
constant IXOR : op3_type := "000011";
constant ISUB : op3_type := "000100";
constant ANDN : op3_type := "000101";
constant ORN : op3_type := "000110";
constant IXNOR : op3_type := "000111";
constant ADDX : op3_type := "001000";
constant UMUL : op3_type := "001010";
constant SMUL : op3_type := "001011";
constant SUBX : op3_type := "001100";
constant UDIV : op3_type := "001110";
constant SDIV : op3_type := "001111";
constant ADDCC : op3_type := "010000";
constant ANDCC : op3_type := "010001";
constant ORCC : op3_type := "010010";
constant XORCC : op3_type := "010011";
constant SUBCC : op3_type := "010100";
constant ANDNCC : op3_type := "010101";
constant ORNCC : op3_type := "010110";
constant XNORCC : op3_type := "010111";
constant ADDXCC : op3_type := "011000";
constant UMULCC : op3_type := "011010";
constant SMULCC : op3_type := "011011";
constant SUBXCC : op3_type := "011100";
constant UDIVCC : op3_type := "011110";
constant SDIVCC : op3_type := "011111";
constant TADDCC : op3_type := "100000";
constant TSUBCC : op3_type := "100001";
constant TADDCCTV : op3_type := "100010";
constant TSUBCCTV : op3_type := "100011";
constant MULSCC : op3_type := "100100";
constant ISLL : op3_type := "100101";
constant ISRL : op3_type := "100110";
constant ISRA : op3_type := "100111";
constant RDY : op3_type := "101000";
constant RDPSR : op3_type := "101001";
constant RDWIM : op3_type := "101010";
constant RDTBR : op3_type := "101011";
constant WRY : op3_type := "110000";
constant WRPSR : op3_type := "110001";
constant WRWIM : op3_type := "110010";
constant WRTBR : op3_type := "110011";
constant FPOP1 : op3_type := "110100";
constant FPOP2 : op3_type := "110101";
constant CPOP1 : op3_type := "110110";
constant CPOP2 : op3_type := "110111";
constant JMPL : op3_type := "111000";
constant TICC : op3_type := "111010";
constant FLUSH : op3_type := "111011";
constant RETT : op3_type := "111001";
constant SAVE : op3_type := "111100";
constant RESTORE : op3_type := "111101";
constant UMAC : op3_type := "111110";
constant SMAC : op3_type := "111111";
constant LD : op3_type := "000000";
constant LDUB : op3_type := "000001";
constant LDUH : op3_type := "000010";
constant LDD : op3_type := "000011";
constant LDSB : op3_type := "001001";
constant LDSH : op3_type := "001010";
constant LDSTUB : op3_type := "001101";
constant SWAP : op3_type := "001111";
constant LDA : op3_type := "010000";
constant LDUBA : op3_type := "010001";
constant LDUHA : op3_type := "010010";
constant LDDA : op3_type := "010011";
constant LDSBA : op3_type := "011001";
constant LDSHA : op3_type := "011010";
constant LDSTUBA : op3_type := "011101";
constant SWAPA : op3_type := "011111";
constant LDF : op3_type := "100000";
constant LDFSR : op3_type := "100001";
constant LDDF : op3_type := "100011";
constant LDC : op3_type := "110000";
constant LDCSR : op3_type := "110001";
constant LDDC : op3_type := "110011";
constant ST : op3_type := "000100";
constant STB : op3_type := "000101";
constant STH : op3_type := "000110";
constant ISTD : op3_type := "000111";
constant STA : op3_type := "010100";
constant STBA : op3_type := "010101";
constant STHA : op3_type := "010110";
constant STDA : op3_type := "010111";
constant STF : op3_type := "100100";
constant STFSR : op3_type := "100101";
constant STDFQ : op3_type := "100110";
constant STDF : op3_type := "100111";
constant STC : op3_type := "110100";
constant STCSR : op3_type := "110101";
constant STDCQ : op3_type := "110110";
constant STDC : op3_type := "110111";
constant CASA : op3_type := "111100";
-- bicc decoding (inst(27 downto 25))
constant BA : std_logic_vector(3 downto 0) := "1000";
-- fpop1 decoding
subtype fpop_type is std_logic_vector(8 downto 0);
constant FITOS : fpop_type := "011000100";
constant FITOD : fpop_type := "011001000";
constant FSTOI : fpop_type := "011010001";
constant FDTOI : fpop_type := "011010010";
constant FSTOD : fpop_type := "011001001";
constant FDTOS : fpop_type := "011000110";
constant FMOVS : fpop_type := "000000001";
constant FNEGS : fpop_type := "000000101";
constant FABSS : fpop_type := "000001001";
constant FSQRTS : fpop_type := "000101001";
constant FSQRTD : fpop_type := "000101010";
constant FADDS : fpop_type := "001000001";
constant FADDD : fpop_type := "001000010";
constant FSUBS : fpop_type := "001000101";
constant FSUBD : fpop_type := "001000110";
constant FMULS : fpop_type := "001001001";
constant FMULD : fpop_type := "001001010";
constant FSMULD : fpop_type := "001101001";
constant FDIVS : fpop_type := "001001101";
constant FDIVD : fpop_type := "001001110";
-- fpop2 decoding
constant FCMPS : fpop_type := "001010001";
constant FCMPD : fpop_type := "001010010";
constant FCMPES : fpop_type := "001010101";
constant FCMPED : fpop_type := "001010110";
-- trap type decoding
subtype trap_type is std_logic_vector(5 downto 0);
constant TT_IAEX : trap_type := "000001";
constant TT_IINST : trap_type := "000010";
constant TT_PRIV : trap_type := "000011";
constant TT_FPDIS : trap_type := "000100";
constant TT_WINOF : trap_type := "000101";
constant TT_WINUF : trap_type := "000110";
constant TT_UNALA : trap_type := "000111";
constant TT_FPEXC : trap_type := "001000";
constant TT_DAEX : trap_type := "001001";
constant TT_TAG : trap_type := "001010";
constant TT_WATCH : trap_type := "001011";
constant TT_DSU : trap_type := "010000";
constant TT_PWD : trap_type := "010001";
constant TT_RFERR : trap_type := "100000";
constant TT_IAERR : trap_type := "100001";
constant TT_CPDIS : trap_type := "100100";
constant TT_CPEXC : trap_type := "101000";
constant TT_DIV : trap_type := "101010";
constant TT_DSEX : trap_type := "101011";
constant TT_TICC : trap_type := "111111";
constant TT_ICERR : trap_type := "110000"; -- icache correctable error
constant TT_DCERR : trap_type := "110100"; -- dcache correctable error
constant TT_RCERR : trap_type := "111000"; -- RF correctable error
-- Alternate address space identifiers (only 5 lsb bist are used)
subtype asi_type is std_logic_vector(4 downto 0);
constant ASI_SYSR : asi_type := "00010"; -- 0x02
constant ASI_UINST : asi_type := "01000"; -- 0x08
constant ASI_SINST : asi_type := "01001"; -- 0x09
constant ASI_UDATA : asi_type := "01010"; -- 0x0A
constant ASI_SDATA : asi_type := "01011"; -- 0x0B
constant ASI_ITAG : asi_type := "01100"; -- 0x0C
constant ASI_IDATA : asi_type := "01101"; -- 0x0D
constant ASI_DTAG : asi_type := "01110"; -- 0x0E
constant ASI_DDATA : asi_type := "01111"; -- 0x0F
constant ASI_IFLUSH : asi_type := "10000"; -- 0x10
constant ASI_DFLUSH : asi_type := "10001"; -- 0x11
constant ASI_FLUSH_PAGE : std_logic_vector(4 downto 0) := "10000"; -- 0x10 i/dcache flush page
constant ASI_FLUSH_CTX : std_logic_vector(4 downto 0) := "10011"; -- 0x13 i/dcache flush ctx
constant ASI_DCTX : std_logic_vector(4 downto 0) := "10100"; -- 0x14 dcache ctx
constant ASI_ICTX : std_logic_vector(4 downto 0) := "10101"; -- 0x15 icache ctx
constant ASI_MMUFLUSHPROBE : std_logic_vector(4 downto 0) := "11000"; -- 0x18 i/dtlb flush/(probe)
constant ASI_MMUREGS : std_logic_vector(4 downto 0) := "11001"; -- 0x19 mmu regs access
constant ASI_MMU_BP : std_logic_vector(4 downto 0) := "11100"; -- 0x1c mmu Bypass
constant ASI_MMU_DIAG : std_logic_vector(4 downto 0) := "11101"; -- 0x1d mmu diagnostic
--constant ASI_MMU_DSU : std_logic_vector(4 downto 0) := "11111"; -- 0x1f mmu diagnostic
constant ASI_MMUSNOOP_DTAG : std_logic_vector(4 downto 0) := "11110"; -- 0x1e mmusnoop physical dtag
-- ftt decoding
subtype ftt_type is std_logic_vector(2 downto 0);
constant FPIEEE_ERR : ftt_type := "001";
constant FPSEQ_ERR : ftt_type := "100";
constant FPHW_ERR : ftt_type := "101";
end;