Numbers in AHDL (AHDL)

You can use decimal, binary, octal, and hexadecimal numbers in any combination in AHDL. The syntax for each radix (numbering system) is shown below.

Radix	Values
Decimal	`<series of digits` `0` `to` `9` `>`
Binary	`B"` `<series of` `0` `'s,` `1` `'s,` `X` `'s>` `"` (where `X` = "don't care")
Octal	`O"` `<` `series of digits` 0 `to` `7` `>` `"` `or` `Q"` `<series of digits` 0 `to` `7` `>` `"`
Hexadecimal	`X"` `<series from` `0` `to` `9` `,` `A` `to` `F` `>` `"` `or` `H"` `<series from` `0` `to` `9` `,` `A` `to` `F` `>` `"`

The following examples show valid AHDL numbers:

B"0110X1X10" Q"4671223" H"123AECF"

The following rules apply to AHDL numbers:

The Compiler always interprets numbers in Boolean Expressions as groups of binary digits; numbers in group ranges are interpreted as decimal values.
Numbers cannot be assigned to single nodes in Boolean equations. Use VCC and GND instead.