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NAME
- UMult64
-
unsigned 32 by 32 bit multiply with 64 bit result. (V39)
SYNOPSIS
result = UMult64(arg1,arg2);
D0:D1 D0 D1
ULONG UMult64(ULONG,ULONG);
D0:D1 D0 D1
ULONG UMult64(ULONG,ULONG);
FUNCTION
Returns the unsigned 64 bit result of multiplying arg1 by arg2.
INPUTS
arg1, arg2 - numbers to multiply
RESULT
- result
-
the unsigned 64 bit result of multiplying arg1 by arg2.
NOTES
Unlike other Amiga library function calls, the utility.library 32 bit math routines do NOT require A6 to be loaded with a pointer to the library base. A6 can contain anything the application wishes. This is in order to avoid overhead in calling them.
In addition, the utility.library math routines preserve all address registers including A0 and A1
In addition, the utility.library math routines preserve all address registers including A0 and A1