#!/bin/sh
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#!/bin/sh
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# hex2romvhdl.sh
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# hex2romvhdl.sh
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# By: Ronivon Candido Costa
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# By: Ronivon Candido Costa
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# ronivon.costa@gmail.com
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# ronivon.costa@gmail.com
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#
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#
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# This tool runs on Cygwin, Linux and Mac OS X
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# This tool runs on Cygwin, Linux and Mac OS X
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#
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#
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# hex2romvhdl.sh will take a file with hexa bytes as input and convert to a rom format in vhdl
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# hex2romvhdl.sh will take a file with hexa bytes as input and convert to a rom format in vhdl
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# Input file should be a file named rom.hex, and the format can be:
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# Input file should be a file named rom.hex, and the format can be:
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# - Motorola HEX format
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# - Motorola HEX format
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# - Z80ASM format (after assembled, use the View in Hex format, and copy the contents to rom.hex
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# - Z80ASM format (after assembled, use the View in Hex format, and copy the contents to rom.hex
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#
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#
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# ----------------------------------------------------------------------------------------------
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# ----------------------------------------------------------------------------------------------
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convMotorolaHexToAscIIHex() {
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convMotorolaHexToAscIIHex() {
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in=rom.hex
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in=rom.hex
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outtmp=romC.hex
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outtmp=romC.hex
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>$outtmp
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>$outtmp
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while read line
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while read line
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do
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do
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if [[ "$line" != ":00000001FF" ]];then
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if [[ "$line" != ":00000001FF" ]];then
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lenbytes=${line:1:2}
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lenbytes=${line:1:2}
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len=`echo $lenbytes | bc`
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len=`echo $lenbytes | bc`
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let bytepos=9
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let bytepos=9
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while [[ $len -gt 0 ]]
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while [[ $len -gt 0 ]]
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do
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do
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echo ${line:$bytepos:2} >> $outtmp
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echo ${line:$bytepos:2} >> $outtmp
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let bytepos=bytepos+2
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let bytepos=bytepos+2
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let len=len-1
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let len=len-1
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done
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done
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fi
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fi
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done<$in
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done<$in
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cp rom.hex rom.hex.bak
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cp rom.hex rom.hex.bak
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mv romC.hex rom.hex
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mv romC.hex rom.hex
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}
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}
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file=rom.hex
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file=rom.hex
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# Vefify if file is in Motorola Hex format, and converto to HEX Ascii codes
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# Vefify if file is in Motorola Hex format, and converto to HEX Ascii codes
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read line < $file
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read line < $file
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if [[ ${line:0:1} = ":" ]];then
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if [[ ${line:0:1} = ":" ]];then
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convMotorolaHexToAscIIHex
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convMotorolaHexToAscIIHex
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fi
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fi
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echo "library IEEE;
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echo "library IEEE;
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use IEEE.std_logic_1164.all;
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use IEEE.std_logic_1164.all;
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use ieee.numeric_std.all;
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use ieee.numeric_std.all;
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entity rom is
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entity rom is
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port(
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port(
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Clk : in std_logic;
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Clk : in std_logic;
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A : in std_logic_vector(11 downto 0);
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A : in std_logic_vector(11 downto 0);
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D : out std_logic_vector(7 downto 0)
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D : out std_logic_vector(7 downto 0)
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);
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);
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end rom;
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end rom;
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architecture rtl of rom is
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architecture rtl of rom is
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begin
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begin
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process (Clk)
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process (Clk)
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begin
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begin
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if Clk'event and Clk = '1' then
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if Clk'event and Clk = '1' then
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case A is"
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case A is"
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ADDR=0
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ADDR=0
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for i in `cat $file | tr ',' ' '`
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for i in `cat $file | tr ',' ' '`
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do
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do
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BL1="when x\""
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BL1="when x\""
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BL3="\" => D <= x\"$i\";"
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BL3="\" => D <= x\"$i\";"
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hexaddr="00"`echo "obase=16;ibase=10;$ADDR" | bc`
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hexaddr="00"`echo "obase=16;ibase=10;$ADDR" | bc`
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fixhexaddr=${hexaddr:(-3)}
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fixhexaddr=${hexaddr:(-3)}
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echo " "$BL1$fixhexaddr$BL3
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echo " "$BL1$fixhexaddr$BL3
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let ADDR=ADDR+1
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let ADDR=ADDR+1
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done
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done
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echo " when others => D <=\"ZZZZZZZZ\";
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echo " when others => D <=\"ZZZZZZZZ\";
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end case;
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end case;
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end if;
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end if;
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end process;
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end process;
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end;"
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end;"
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