Subversion Repositories m32632

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

//

// This file is part of the M32632 project

// http://opencores.org/project,m32632

//

//      Filename:       M32632.v

//  Version:    3.0 Cache Interface reworked

//      History:        2.1 bug fix of 26 November 2016

//                              2.0 50 MHz release of 14 August 2016

//                              1.1 bug fix of 7 October 2015

//                              1.0 first release of 30 Mai 2015

//      Date:           2 December 2018

//

// Copyright (C) 2018 Udo Moeller

// 

// This source file may be used and distributed without 

// restriction provided that this copyright statement is not 

// removed from the file and that any derivative work contains 

// the original copyright notice and the associated disclaimer.

// 

// This source file is free software; you can redistribute it 

// and/or modify it under the terms of the GNU Lesser General 

// Public License as published by the Free Software Foundation;

// either version 2.1 of the License, or (at your option) any 

// later version. 

// 

// This source 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 Lesser General Public License for more 

// details. 

// 

// You should have received a copy of the GNU Lesser General 

// Public License along with this source; if not, download it 

// from http://www.opencores.org/lgpl.shtml 

// 

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

//

//      Modules contained in this file:

//      M32632          The top level of M32632

//

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

module M32632( BCLK, DRAMSZ, BRESET, NMI_N, INT_N, STATUS, ILO, STATSIGS,

                           IO_WR, IO_RD, IO_A, IO_BE, IO_DI, IO_Q, IO_READY,

                           ENDRAM, IC_MDONE, DC_MDONE, ENWR, DRAM_Q, DC_INHIBIT, IC_INHIBIT,

                           IC_ACC, IDRAM_ADR, DC_ACC, DC_WR, DRAM_ADR, DRAM_DI,

                           HOLD, HLDA, DMA_CHK, DMA_AA,

                           COP_GO, COP_OP, COP_OUT, COP_DONE, COP_IN );

// ++++++++++ Basic Signals

input                   BCLK;   // Basic Clock for everything

input    [2:0]   DRAMSZ;

input                   BRESET;

input                   NMI_N;

input                   INT_N;

output   [3:0]   STATUS;

output                  ILO;

output   [7:0]   STATSIGS;

// +++++++++ General Purpose Interface

output                  IO_WR;

output                  IO_RD;

output  [31:0]   IO_A;

output   [3:0]   IO_BE;

output  [31:0]   IO_DI;

input   [31:0]   IO_Q;

input                   IO_READY;

// +++++++++ DRAM Interface In

input                   ENDRAM;

input                   IC_MDONE;

input                   DC_MDONE;

input                   ENWR;

input  [127:0]   DRAM_Q;

input                   DC_INHIBIT;

input                   IC_INHIBIT;

// +++++++++ DRAM Interface Out

output                  IC_ACC;

output  [28:0]   IDRAM_ADR;

output                  DC_ACC;

output                  DC_WR;

output  [28:0]   DRAM_ADR;

output  [35:0]   DRAM_DI;

// ++++++++++ DMA Interface

input                   HOLD;

output                  HLDA;

input                   DMA_CHK;

input   [28:4]  DMA_AA;

// ++++++++++ Coprocessor Interface

output                  COP_GO;

output  [23:0]   COP_OP;

output [127:0]   COP_OUT;

input                   COP_DONE;

input   [63:0]   COP_IN;

wire                    ACC_DONE;

wire     [5:0]   ACC_STAT;

wire    [12:0]   CFG;

wire     [3:0]   CINV;

wire                    DATA_HOLD;

wire                    DC_INIT;

wire                    Y_INIT;

wire                    DONE;

wire    [63:0]   DP_Q;

wire     [3:0]   IACC_STAT;

wire                    PROT_ERROR;

wire     [2:0]   GENSTAT;

wire                    IC_INIT;

wire                    IC_PREQ;

wire                    IC_READ;

wire     [1:0]   IC_SIGS;

wire                    IC_USER;

wire   [31:12]  IC_VA;

wire     [3:0]   ICTODC;

wire     [6:0]   INFO_AU;

wire     [1:0]   IVAR;

wire                    KDET;

wire    [28:4]  KOLLI_A;

wire     [3:0]   MCR;

wire    [23:0]   MMU_DIN;

wire    [11:0]   PSR;

wire                    PTB_SEL;

wire                    PTB_WR;

wire                    READ;

wire                    WRITE;

wire                    ZTEST;

wire                    RMW;

wire                    QWATWO;

wire     [2:0]   RWVAL;

wire                    RWVFLAG;

wire     [3:0]   D_IOBE;

wire                    D_IORDY;

wire     [1:0]   CTRL_QW;

wire     [3:0]   PACKET;

wire     [1:0]   SIZE;

wire    [31:0]   VADR;

wire                    WREN_REG;

wire                    LD_DIN;

wire                    LD_IMME;

wire                    WR_REG;

wire    [14:0]   ACC_FELD;

wire    [31:0]   DIN;

wire    [31:0]   DISP;

wire     [2:0]   IC_TEX;

wire    [31:0]   IMME_Q;

wire     [1:0]   LD_OUT;

wire    [12:0]   DETOIP;

wire     [1:0]   MMU_UPDATE;

wire    [10:0]   OPER;

wire    [31:0]   PC_ARCHI;

wire    [31:0]   PC_ICACHE;

wire     [7:0]   RDAA;

wire     [7:0]   RDAB;

wire     [1:0]   START;

wire     [1:0]   WMASKE;

wire     [5:0]   WRADR;

wire                    I_IORDY;

wire                    ACB_ZERO;

wire                    DC_ABORT;

wire                    SAVE_PC;

wire    [31:0]   IC_DIN;

wire    [31:0]   PC_NEW;

wire     [4:0]   STRING;

wire     [5:0]   TRAPS;

wire                    I_IORD;

wire                    D_IOWR;

wire                    D_IORD;

wire    [31:0]   D_IOA;

wire    [31:0]   I_IOA;

wire                    ENA_HK;

wire                    STOP_CINV;

wire                    KOLLISION;

wire                    ILO_SIG;

wire     [1:0]   PTE_STAT;

wire                    DBG_HIT;

wire    [40:2]  DBG_IN;

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

//            The Data Cache

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

DCACHE  ARMS(

        .BCLK(BCLK),

        .DRAMSZ(DRAMSZ),

        .BRESET(BRESET),

        .PTB_WR(PTB_WR),

        .PTB_SEL(PTB_SEL),

        .MDONE(DC_MDONE),

        .IO_READY(D_IORDY),

        .CTRL_QW(CTRL_QW),

        .PSR_USER(INFO_AU[1]),

        .WRITE(WRITE),

        .READ(READ),

        .ZTEST(ZTEST),

        .RMW(RMW),

        .QWATWO(QWATWO),

        .ENWR(ENWR),

        .IC_PREQ(IC_PREQ),

        .DMA_CHK(DMA_CHK),

        .CFG(CFG[10:9]),

        .ENDRAM(ENDRAM),

        .CINVAL(CINV[1:0]),

        .DMA_AA(DMA_AA),

        .DP_Q(DP_Q),

        .DRAM_Q(DRAM_Q),

        .IC_VA(IC_VA),

        .ICTODC(ICTODC),

        .IO_Q(IO_Q),

        .IVAR(IVAR),

        .MCR_FLAGS(MCR),

        .PACKET(PACKET),

        .SIZE(SIZE),

        .VADR(VADR),

        .INHIBIT(DC_INHIBIT),

        .DRAM_ACC(DC_ACC),

        .DRAM_WR(DC_WR),

        .IO_RD(D_IORD),

        .IO_WR(D_IOWR),

        .INIT_RUN(DC_INIT),

        .KDET(KDET),

        .HLDA(HLDA),

        .ACC_STAT(ACC_STAT),

        .DP_DI(DIN),

        .DRAM_A(DRAM_ADR),

        .DRAM_DI(DRAM_DI),

        .IACC_STAT(IACC_STAT[3:1]),

        .IC_SIGS(IC_SIGS),

        .IO_A(D_IOA),

        .IO_BE(D_IOBE),

        .IO_DI(IO_DI),

        .PTE_STAT(PTE_STAT),

        .DBG_HIT(DBG_HIT),

        .DBG_IN(DBG_IN),

        .KOLLI_A(KOLLI_A),

        .MMU_DIN(MMU_DIN),

        .RWVAL(RWVAL),

        .RWVFLAG(RWVFLAG));

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

//            The Datapath

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

DATENPFAD       STOMACH(

        .WREN(WREN_REG),

        .BRESET(BRESET),

        .BCLK(BCLK),

        .IO_READY(D_IORDY),

        .LD_DIN(LD_DIN),

        .LD_IMME(LD_IMME),

        .WR_REG(WR_REG),

        .IC_USER(IC_USER),

        .ACC_FELD(ACC_FELD),

        .ACC_STAT(ACC_STAT),

        .DIN(DIN),

        .DISP(DISP),

        .IC_TEX(IC_TEX),

        .IMME_Q(IMME_Q),

        .INFO_AU(INFO_AU),

        .LD_OUT(LD_OUT),

        .DETOIP(DETOIP),

        .MMU_UPDATE(MMU_UPDATE),

        .OPER(OPER),

        .PC_ARCHI(PC_ARCHI),

        .PC_ICACHE(PC_ICACHE),

        .RDAA(RDAA),

        .RDAB(RDAB),

        .START(START),

        .WMASKE(WMASKE),

        .WRADR(WRADR),

        .READ_OUT(READ),

        .WRITE_OUT(WRITE),

        .ZTEST(ZTEST),

        .RMW(RMW),

        .QWATWO(QWATWO),

        .ACC_DONE(ACC_DONE),

        .CTRL_QW(CTRL_QW),

        .Y_INIT(Y_INIT),

        .DONE(DONE),

        .PTB_WR(PTB_WR),

        .PTB_SEL(PTB_SEL),

        .ACB_ZERO(ACB_ZERO),

        .ABORT(DC_ABORT),

        .SAVE_PC(SAVE_PC),

        .CFG(CFG),

        .CINV(CINV),

        .DP_Q(DP_Q),

        .IVAR(IVAR),

        .MCR(MCR),

        .PACKET(PACKET),

        .PC_NEW(PC_NEW),

        .PSR(PSR),

        .SIZE(SIZE),

        .STRING(STRING),

        .TRAPS(TRAPS),

        .VADR(VADR),

        .RWVFLAG(RWVFLAG),

        .DBG_HIT(DBG_HIT),

        .DBG_IN(DBG_IN),

        .COP_DONE(COP_DONE),

        .COP_OP(COP_OP),

        .COP_IN(COP_IN),

        .COP_GO(COP_GO),

        .COP_OUT(COP_OUT));

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

//            The Instruction Cache

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

ICACHE  LEGS(

        .BCLK(BCLK),

        .DRAMSZ(DRAMSZ),

        .BRESET(BRESET),

        .PTB_WR(PTB_WR),

        .PTB_SEL(PTB_SEL),

        .MDONE(IC_MDONE),

        .IO_READY(I_IORDY),

        .READ_I(IC_READ),

        .PSR_USER(IC_USER),

        .DATA_HOLD(DATA_HOLD),

        .DRAM_WR(DC_WR),

        .KDET(KDET),

        .HOLD(HOLD),

        .CFG(CFG[12:11]),

        .ENDRAM(ENDRAM),

        .DRAM_Q(DRAM_Q),

        .CINVAL(CINV[3:2]),

        .IC_SIGS(IC_SIGS),

        .IO_Q(IO_Q),

        .IVAR(IVAR),

        .KOLLI_A(KOLLI_A),

        .MCR_FLAGS(MCR),

        .MMU_DIN(MMU_DIN),

        .VADR(PC_ICACHE),

        .INHIBIT(IC_INHIBIT),

        .DRAM_ACC(IC_ACC),

        .IO_RD(I_IORD),

        .INIT_RUN(IC_INIT),

        .PROT_ERROR(PROT_ERROR),

        .ACC_OK(IACC_STAT[0]),

        .IC_PREQ(IC_PREQ),

        .KOLLISION(KOLLISION),

        .DRAM_A(IDRAM_ADR),

        .IC_DQ(IC_DIN),

        .IC_VA(IC_VA),

        .ICTODC(ICTODC),

        .ENA_HK(ENA_HK),

        .STOP_CINV(STOP_CINV),

        .IO_A(I_IOA));

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

//            The Control Unit

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

STEUERUNG       BRAIN(

        .BCLK(BCLK),

        .BRESET(BRESET),

        .DC_ACC_DONE(ACC_DONE),

        .ACB_ZERO(ACB_ZERO),

        .DONE(DONE),

        .NMI_N(NMI_N),

        .INT_N(INT_N),

        .DC_ABORT(DC_ABORT),

        .IC_INIT(IC_INIT),

        .DC_INIT(DC_INIT),

        .Y_INIT(Y_INIT),

        .SAVE_PC(SAVE_PC),

        .CFG(CFG[8:0]),

        .IACC_STAT(IACC_STAT),

        .PROT_ERROR(PROT_ERROR),

        .IC_DIN(IC_DIN),

        .PC_NEW(PC_NEW),

        .PSR(PSR),

        .STRING(STRING),

        .TRAPS(TRAPS),

        .IC_READ(IC_READ),

        .DATA_HOLD(DATA_HOLD),

        .LD_DIN(LD_DIN),

        .LD_IMME(LD_IMME),

        .WREN(WREN_REG),

        .WR_REG(WR_REG),

        .GENSTAT(GENSTAT),

        .IC_USER(IC_USER),

        .ACC_FELD(ACC_FELD),

        .DISP(DISP),

        .IC_TEX(IC_TEX),

        .IMME_Q(IMME_Q),

        .INFO_AU(INFO_AU),

        .LD_OUT(LD_OUT),

        .DETOIP(DETOIP),

        .MMU_UPDATE(MMU_UPDATE),

        .OPER(OPER),

        .PC_ARCHI(PC_ARCHI),

        .PC_ICACHE(PC_ICACHE),

        .RDAA(RDAA),

        .RDAB(RDAB),

        .START(START),

        .WMASKE(WMASKE),

        .WRADR(WRADR),

        .ENA_HK(ENA_HK),

        .STOP_CINV(STOP_CINV),

        .COP_OP(COP_OP),

        .ILO(ILO_SIG),

        .RWVAL(RWVAL));

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

//            The Input/Output Interface

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

IO_SWITCH       ISWITCH(

        .I_IORD(I_IORD),

        .D_IOWR(D_IOWR),

        .IO_READY(IO_READY),

        .D_IORD(D_IORD),

        .D_IOBE(D_IOBE),

        .BRESET(BRESET),

        .BCLK(BCLK),

        .GENSTAT(GENSTAT),

        .D_IOA(D_IOA),

        .I_IOA(I_IOA),

        .D_IORDY(D_IORDY),

        .I_IORDY(I_IORDY),

        .IO_RD(IO_RD),

        .IO_WR(IO_WR),

        .IO_BE(IO_BE),

        .ILO_SIG(ILO_SIG),

        .ILO(ILO),

        .IO_A(IO_A),

        .DCWACC({DC_WR,DC_ACC}),

        .STATUS(STATUS));

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

//            The Statistic Signal Generator

// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

MAKE_STAT       MKSTAT(

        .BCLK(BCLK),

        .READ(READ),

        .DACC_OK(ACC_STAT[0]),

        .KOLLISION(KOLLISION),

        .DC_ACC(DC_ACC),

        .DPTE_ACC(PTE_STAT[0]),

        .DC_MDONE(DC_MDONE),

        .DRAM_WR(DC_WR),

        .IC_READ(IC_READ),

        .IACC_OK(IACC_STAT[0]),

        .IC_ACC(IC_ACC),

        .IPTE_ACC(PTE_STAT[1]),

        .IC_MDONE(IC_MDONE),

        .DATA_HOLD(DATA_HOLD),

        .STATSIGS(STATSIGS));

endmodule