how to define a memory position variable and give it a value

>I've already had Mark A. Odell answer this question saying this can't be
>done portably. He also sugested me coming to this group with the question

>#define _CLAVE1          ((uint16_t*)0xD000)

if you want to pretend that _CLAVE1 is a uint_16 located at D000, instead
of a pointer, then this should be

>#define _CLAVE1          (*(uint16_t*)0xD000)

now you can write, e.g.,

	_CLAVE += 17

-- 
	mac the na�f