NRTDRV MAN EN SYNTAX NUMERALS
From MSX MUSIC WIKI
Numeral expressions
Hexadecimal starts with "$", binary starts with "%" and decimal starts without any symbols.
Separate sign "_" is available in binary.
[example] %101_10_100 = %10110100 = $B4 = 180
Addition and subtraction are available with "+" and "-". This is differ from note value and is purely mathematical calculated.
[example] A [8+8+4-1 r1] ;same as [19 r1]
Repeated time should be given in decimal (hexadecimal or binary are not accepted).
[example] A [$0c efg] "$0c" is recognized as macro named"$0c", not as decimal numeric 12.