// #################################################################################################
// # << NEORV32 - Test Setup using the internal IMEM as ROM to run pre-installed executables >>    #
// # ********************************************************************************************* #
// # BSD 3-Clause License                                                                          #
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// # Copyright (c) 2023, Stephan Nolting. All rights reserved.                                     #
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// # The NEORV32 RISC-V Processor - https://github.com/stnolting/neorv32                           #
// #################################################################################################
// no timescale needed

module neorv32_test_setup_approm(
input wire clk_i,
input wire rstn_i,
output wire [7:0] gpio_o
);

// adapt these for your setup --
parameter [31:0] CLOCK_FREQUENCY=100000000;
parameter [31:0] MEM_INT_IMEM_SIZE=16 * 1024;
parameter [31:0] MEM_INT_DMEM_SIZE=8 * 1024;
// size of processor-internal data memory in bytes
// Global control --
// global clock, rising edge
// global reset, low-active, async
// GPIO --
// parallel output



wire [63:0] con_gpio_o;

  // The Core Of The Problem ----------------------------------------------------------------
  // -------------------------------------------------------------------------------------------
  neorv32_top #(
      // General --
    .CLOCK_FREQUENCY(CLOCK_FREQUENCY),
    // clock frequency of clk_i in Hz
    .INT_BOOTLOADER_EN(false),
    // boot configuration: true = boot explicit bootloader; false = boot from int/ext (I)MEM
    // RISC-V CPU Extensions --
    .CPU_EXTENSION_RISCV_C(true),
    // implement compressed extension?
    .CPU_EXTENSION_RISCV_M(true),
    // implement mul/div extension?
    .CPU_EXTENSION_RISCV_Zicntr(true),
    // implement base counters?
    // Internal Instruction memory --
    .MEM_INT_IMEM_EN(true),
    // implement processor-internal instruction memory
    .MEM_INT_IMEM_SIZE(MEM_INT_IMEM_SIZE),
    // size of processor-internal instruction memory in bytes
    // Internal Data memory --
    .MEM_INT_DMEM_EN(true),
    // implement processor-internal data memory
    .MEM_INT_DMEM_SIZE(MEM_INT_DMEM_SIZE),
    // size of processor-internal data memory in bytes
    // Processor peripherals --
    .IO_GPIO_NUM(8),
    // number of GPIO input/output pairs (0..64)
    .IO_MTIME_EN(true))
  neorv32_top_inst(
      // Global control --
    .clk_i(clk_i),
    // global clock, rising edge
    .rstn_i(rstn_i),
    // global reset, low-active, async
    // GPIO (available if IO_GPIO_NUM > 0) --
    .gpio_o(con_gpio_o));

  // GPIO output --
  assign gpio_o = con_gpio_o[7:0];

endmodule