> How do I go about storing a string, for example "TEST"
> in a 4 byte res data space using assembly code?
>
> Example, I res the following data space
>
> Data    res   4

Are you asking how to define at assembly time that the data locations should
contain the string, or how to get the string there at run time?

RES reserves RAM, so it wakes up in an unknown state when the PIC is powered
up.  If you want it to contain the string, you have to write it there at run
time.

I sorta remember the assembler has directives for defining initialized RAM
areas, but I've never used them.  It will do a lot of things behind your
back, like put a table of the data in program memory and load a routine to
copy it from program memory to RAM.  I don't remember if you have to call
the routine explicitly or if it is called automatically at power up and what
gets put at the reset vector if it does.  All I remember is that it looked
like something to avoid when I read about it a few years back.


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