turbo9_urtl_decode_pg3_AR.v

// [TURBO9_DECODE_HEADER_START]
//////////////////////////////////////////////////////////////////////////////
//                          Turbo9 Microprocessor IP
//////////////////////////////////////////////////////////////////////////////
// Website: www.turbo9.org
// Contact: team[at]turbo9[dot]org
//////////////////////////////////////////////////////////////////////////////
// [TURBO9_DECODE_LICENSE_START]
// BSD-1-Clause
//
// Copyright (c) 2020-2023
// Kevin Phillipson
// Michael Rywalt
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are met:
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// 1. Redistributions of source code must retain the above copyright notice,
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// [TURBO9_DECODE_LICENSE_END]
//////////////////////////////////////////////////////////////////////////////
// Engineer: Kevin Phillipson & Michael Rywalt
// Description:
// Assembled from turbo9_urtl.asm file
// built using cv_AR_SEL ctrl_vec
//
//////////////////////////////////////////////////////////////////////////////
// History:
// 07.14.2023 - Kevin Phillipson
//   File header added
//
//////////////////////////////////////////////////////////////////////////////
// [TURBO9_DECODE_HEADER_END]

/////////////////////////////////////////////////////////////////////////////
//                                MODULE
/////////////////////////////////////////////////////////////////////////////
module turbo9_urtl_decode_pg3_AR(
  input      [7:0] OPCODE_I,
  output reg [3:0] PG3_AR_O
);

/////////////////////////////////////////////////////////////////////////////
//                                LOGIC
/////////////////////////////////////////////////////////////////////////////

always @* begin
  case (OPCODE_I)
    default : PG3_AR_O = 4'hx; // from decode_init
  endcase
end

`ifdef SIM_TURBO9

reg [(8*64):0] PG3_AR_op;

always @* begin
  case (OPCODE_I)
    default : PG3_AR_op = "invalid";
  endcase
end

reg [(8*64):0] PG3_AR_eq;

always @* begin
  case (OPCODE_I)
    default : PG3_AR_eq = "invalid";
  endcase
end

`endif

/////////////////////////////////////////////////////////////////////////////

endmodule