Subversion Repositories softavrcore

#!/bin/bash

infile=""

depth=8

name=rom_16bit

while [ -n "$1" ]; do

        case "$1" in

                -h|--help)

                        echo -e "Usage:\t$0 [-h|--help] [-w|--width <width>] <16-bit-image.bin>"

                        exit    0

                        ;;

                -w|--width|-d|--depth)

                        depth="$2"

                        shift

                        ;;

                -n|--name)

                        name="$2"

                        shift

                        ;;

                -*)

                        echo -e "$0: error: invalid command line argument near '$1'." >> /dev/stderr

                        exit    1

                        ;;

                *)

                        infile="$1"

                        ;;

        esac; shift

done

if ! [ -n "$infile" ] || ! [ -f "$infile" ]; then

        echo "$0: error: input file is missing or not found." >> /dev/stderr

        exit    1

fi

nword=$((1<<depth))

cat "$infile" /dev/zero | \

head -c $((2*nword)) | \

hexdump -v -e '/2 "%.4x\n"' | \

awk -v f=0 -v i=0 -v n=0 -v nword=$nword -v depth=$depth -v name=$name \

 'BEGIN \

  {     printf("module %s\n",name);

        printf(" (      input           clk,\n");

        printf("        input           mem_ce,\n");

        printf("        input   [%d:0]  mem_a,\n",depth-1);

        printf("        output  [15:0]  mem_d\n");

        printf(" );\n");

        if ( depth==9 )

         {      printf("reg mem_hi;\n");

                printf("always @(posedge clk) mem_hi <= mem_a[8];\n");

         }

        else if ( 10<=depth )

         {      printf("reg [%d:0] mem_hi;\n",depth-9);

                printf("always @(posedge clk) mem_hi <= mem_a[%d:8];\n",depth-1);

         }

        if ( 9<=depth )

                printf("reg [15:0] mem_d;\n");

  } \

  {     arr[n+1]=$1;

        n++;

        if ( n==16 )

         {      if ( i==0 )

                 {      printf("wire [15:0] db%d;\n",f);

                        printf("SB_RAM40_4K flash%d\n",f);

                        printf(" (      .RDATA(db%d),\n",f);

                        printf("        .RADDR({3%cb000,mem_a[7:0]}),\n",39);

                        printf("        .RCLKE(1%cb1),\n",39);

                        printf("        .RCLK(clk),\n");

                        printf("        .RE(mem_ce),\n");

                        printf("        .WADDR(11%cb00000000000),\n",39);

                        printf("        .MASK(16%cb0000000000000000),\n",39);

                        printf("        .WDATA(16%cb0000000000000000),\n",39);

                        printf("        .WCLKE(1%cb0),\n",39);

                        printf("        .WCLK(1%cb0),\n",39);

                        printf("        .WE(1%cb0)\n",39);

                        printf(" );\n");

                        printf("defparam flash%d.READ_MODE = 0;\n",f);

                 }

                printf("defparam flash%d.INIT_%X = 256%ch",f,i,39);

                for ( k=0 ; k<16 ; k++ )

                 {      if ( k )        printf("_");

                        printf("%s",arr[16-k]);

                 }

                printf(";\n");

                n=0;

                i++;

         }

        if ( i==16 )

         {      i=0;

                f++;

         }

  } \

 END \

  {     if ( 9<=depth )

         {      printf("always @(*) begin\n");

                printf("        casex (mem_hi)\n");

                for ( k=0 ; k<nword/256 ; k++ )

                        printf("                %d%cd%d: mem_d = db%d;\n",depth-8,39,k,k);

                printf("                default: mem_d = 16%ch0000;\n",39);

                printf("        endcase\n");

                printf("end\n");

         }

        else

                printf("assign mem_d = db0;\n");

        printf("\n");

        printf("endmodule\n");

  }'