accessing bytes in an array

StefanL38

hello,

i would like to ask if there exists an easier way to access bytes within a bytearray
i would like to use the pointer to the array as a parameter of some methods

VAR
  byte MyByteArray1[noparse][[/noparse]20]
  byte MyByteArray2[noparse][[/noparse]20]


PUB MyMethod(p_ByteArrayPointer) | index

  repeat index from 0 to 10
    byte[noparse][[/noparse]p_ByteArrayPointer][noparse][[/noparse]index] := .....' that's the way i found out it works

'call of this method 


PUB someOtherMethod
  MyMethod(@MyByteArray2)

now my question is:
is there an easier way to access the bytes in the array than byte[noparse][[/noparse]p_ByteArrayPointer].... ?

This is an absolute adressing using the general command "byte". So if something is wrong about the pointer
it messes up HUB-RAM what do i know somewhere

what i don't want to do is call the method without a parameter by using the global variable

If i define all the arrays i need in order.

VAR
  byte MyByteArray1[noparse][[/noparse]20]
  byte MyByteArray2[noparse][[/noparse]20]
  byte ...
  byte MyByteArray8[noparse][[/noparse]20]

Will the adressrange of all arrays start at
@MyByteArray1

and end at

@MyByteArray8 + 20 ?

so that i could make a rangechecking of the pointer ?

best regards

Stefan

hippy

There's no other way of accessing the array I know of ( "byte[noparse][[/noparse] ptr ][noparse][[/noparse] index]" could also be "byte[noparse][[/noparse] ptr+index ]" ).

Yes, defined that way all bytes allocated will be contiguous. It's Array[noparse][[/noparse] size ], indexed 0..size-1, so the last byte used is actually at @MyByteArray8+19, you also want to ensure the pointer points no further than after the start of the last array though ...

-- if p_ByteArrayPointer => @MyByteArray1 and p_ByteArrayPointer =< @MyByteArray8
---- okay to use pointer

Post Edited (hippy) : 3/31/2008 1:12:38 AM GMT

StefanL38

Hello hippy,

thank you for the answer.

So i'm on the right way to do it

best reagrds

Stefan