morse_gen.php

<?php

$code = [
    'A' => '01',
    'B' => '1000',
    'C' => '1010',
    'D' => '100',
    'E' => '0',
    'F' => '0010',
    'G' => '110',
    'H' => '0000',
    'I' => '00',
    'J' => '0111',
    'K' => '101',
    'L' => '0100',
    'M' => '11',
    'N' => '10',
    'O' => '111',
    'P' => '0111',
    'Q' => '1101',
    'R' => '010',
    'S' => '000',
    'T' => '1',
    'U' => '001',
    'V' => '0001',
    'W' => '011',
    'X' => '1001',
    'Y' => '1011',
    'Z' => '1100',
    '0' => '11111',
    '1' => '01111',
    '2' => '00111',
    '3' => '00011',
    '4' => '00001',
    '5' => '00000',
    '6' => '10000',
    '7' => '11000',
    '8' => '11100',
    '9' => '11110',
];

foreach($code as $char => $code) {
    echo ".db (".strlen($code) ." << 5) + 0b".$code . ", CHAR_$char\n";
    //echo ".byte 0x" . dechex((strlen($code)<<5)+bindec($code)) . ", CHAR_$char\n";
}