| Intel HEX Script
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# converts Intel HEX to $readmemh format (Contributed by Bill Elliott) $mem_words = 2048; $verbose_parse = 0; @no_entry = (); $#no_entry = $mem_words; @mem_data = (); $#mem_data = $mem_words; for ($i=0; $i < $mem_words; $i++) { @no_entry[$i] = 1; } while (<>) { chop; if (/^:/) { @char_array = (); @char_array = split(//,$_); $array_len = @char_array; if ($verbose_parse == 1) { printf("Line len %d\n",$array_len); } # length of the array $num_words = hex(join('',@char_array[1],@char_array[2]))/2; if ($verbose_parse == 1) { printf("Num words this line: %d\n", $num_words); } if ($num_words == 0) { $fill_value = hex(join('', @char_array[$array_len-2,$array_len-1])); if ($verbose_parse == 1) { printf("fill value is %d\n", $fill_value); } } $start_addr = hex(join('',@char_array[3,4,5,6]))/2; if ($verbose_parse == 1) { printf("Starting addr this line: %d\n", $start_addr); } if (($num_words*2) > ($array_len-11)) { die "Format error: not enough data"; } $aix = 9; for ($i=0; $i < $num_words; $i++) { $data_val = hex(join('',@char_array[$aix+2,$aix+3,$aix,$aix+1])); @mem_data[$start_addr] = $data_val; @no_entry[$start_addr] = 0; $aix += 4; $start_addr++; } } else { die "File format problems"; } } for ($i=0; $i < $mem_words; $i++) { if (@no_entry[$i]) { $out_val = $fill_value + ($fill_value << 8); } else { $out_val = @mem_data[$i]; } $out_val &= 0xfff; printf("@%03X %03X\n",$i, $out_val); } |
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