Subversion Repositories mpmc8

// ============================================================================

//        __

//   \\__/ o\    (C) 2022-2023  Robert Finch, Waterloo

//    \  __ /    All rights reserved.

//     \/_//     robfinch@finitron.ca

//       ||

//

// BSD 3-Clause License

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// 1. Redistributions of source code must retain the above copyright notice, this

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// ============================================================================

//

package mpmc10_pkg;

parameter CACHE_ASSOC = 4;

parameter RMW = 0;

parameter NAR = 2;

parameter AMSB = 28;

parameter CMD_READ = 3'b001;

parameter CMD_WRITE = 3'b000;

// State machine states

typedef enum logic [4:0] {

        IDLE = 5'd0,

        PRESET1 = 5'd1,

        PRESET2 = 5'd2,

        WRITE_DATA0 = 5'd3,

        WRITE_DATA1 = 5'd4,

        WRITE_DATA2 = 5'd5,

        WRITE_DATA3 = 5'd6,

        READ_DATA = 5'd7,

        READ_DATA0 = 5'd8,

        READ_DATA1 = 5'd9,

        READ_DATA2 = 5'd10,

        WAIT_NACK = 5'd11,

        WRITE_TRAMP = 5'd12,    // write trampoline

        WRITE_TRAMP1 = 5'd13,

        PRESET3 = 5'd14,

        ALU = 5'd15,

        ALU1 = 5'd16,

        ALU2 = 5'd17,

        ALU3 = 5'd18,

        ALU4 = 5'd19,

        CAS = 5'd20

} mpmc10_state_t;

typedef struct packed

{

        logic [31:4] tag;

        logic modified;

        logic [127:0] data;

} mpmc10_cache_line_t;

typedef struct packed

{

        mpmc10_cache_line_t [CACHE_ASSOC-1:0] lines;

} mpmc10_quad_cache_line_t;

endpackage