Numeric constants must be integers, and their values must be between 2,147,483,648 and 4,294,967,295.
By default, numeric constants use decimal notation, but the built-in assembler also supports binary, octal, and hexadecimal. Binary notation is selected by writing a B after the number, octal notation by writing an O after the number, and hexadecimal notation by writing an H after the number or a $ before the number.
Numeric constants must start with one of the digits 0 through 9 or the $ character. When you write a hexadecimal constant using the H suffix, an extra zero is required in front of the number if the first significant digit is one of the digits A through F. For example, 0BAD4H and $BAD4 are hexadecimal constants, but BAD4H is an identifier because it starts with a letter.
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