Signed Byte & Short Functions

This code has been declared by its author to be Public Domain code.

Signed Byte & Short Functions by N

2006

These are functions that are used to convert signed shorts & bytes to integers (since converting them to a BMax short or byte is useless as they're unsigned) and vice versa (e.g, integer->signed short).

These are especially useful when you want to save space in binary formats.

Thanks to Floyd for help with this (about a year ago, no idea if anyone remembers but I figured I'd throw that in).

' Signed Short -> Int
Function ShortInt%( s@@ )
    Return (s Shl 16) Sar 16
End Function

' Int -> Signed Short
Function IntShort@@( i% )
    Return ((i&$80000000) Shr 16)|(i&$7FFFFFFF)
End Function

' Signed Byte -> Int
Function ByteInt%( s@ )
    Return (s Shl 24) Sar 24
End Function

' Int -> Signed Byte
Function IntByte@@( i% )
    Return ((i&$80000000) Shr 24)|(i&$7FFFFFFF)
End Function

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