Good evening my friends,

I was reading the MPASM help file and looking at the assembler directives;=
=20
specifically the RES-Directive. There they have the following code example:=
=20

[CODE]

#include p18f452.inc     ;Include standard header file

                          ;for the selected device.

     UDATA                  ;This directive allows the

                          ;following data to be placed only

                          ;in the data area.

   perimeter  res  2      ;Two locations of memory are

                          ;reserved for the label

                          ;'perimeter'. Addresses of the

                          ;memory locations will be

                            ;allocated by MPLINK.

   length     res  1      ;One location of memory is

                          ;reserved for the label 'length'.

                          ;Address of the memory location

                            ;will be allocated by MPLINK.

   width      res  1      ;One location of memory is

                          ;reserved for the label 'width'.

                          ;Address of the memory location

                            ;will be allocated by MPLINK.

 Start  CODE  0x0000      ;Following code will be placed in

                          ;address 0.

[/CODE]

Looking at the last line of code where the CODE-Directive had been utilized=
,=20
I wondered if they where defining the label START as an ORG 0x00 type of=20
thing for later use in their code. The UDATA at the top threw me off=20
though... I supposed that any UDATA-Directive should be 'finished' off by a=
=20
CODE-Directive. Am I wrong thinking that?=20

The thing is that my main program code is at the bottom of the source, and=
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usually where I put my ORG 0x00. If I where to implement the above code in=
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my code, would I replace the ORG 0x00 in the main program code with a simpl=
e=20
"Start"-label?

I also presumed that the UDATA-Directive that comes before the=20
RES-directives is a must?

Ah, a last-minute addition to this email: MPASM is complaining that I am=20
using CODE and UDATA in my ASM and telling me that I can only use them when=
=20
generating an object file... Does that mean that I am not thought of as a=
=20
likable person in this absolutely MAD world?

Thanks,

Sean.
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