More compact source code you may get with something like
    
    
    var a: array[32, byte]
    var p: ptr uint64
    var myUint64: uint64 = 123456
    
    p = cast[ptr uint64](addr a[8])
    p[] = myUint64
    
    
    Run

but so you have no influence on endianess and of course you have to care that 
you do write only to valid memory regions. The final assembler code may be 
identical to your above bit masking operations.

Reply via email to