Parameters passed by value

When a parameter is passed by value, the actual value is passed on the stack. The amount of space occupied will vary, depending upon the data type as indicated in the following table. A parameter passed by value is usually accessed in this way:

SUB MySub(BYVAL xyz&)

! MOV ECX, xyz& ; ECX now contains xyz&

' ...more code would go in here

END SUB

*Argument type*	Size on the stack (in bytes)
Byte, Word, Integer	4
Dword, Long, Single	4
Quad, Double, Currency, Extended Currency	8
Extended-Precision Float	12
Dynamic String	4