John Orhan wrote:
>
> Hi Andy,
>
> And many thanks for your help. If I tried to invoke a macro on a PIC from
> say ram_bank0  to a place in ram_bank1 memory, ( ram_bank0 and ram_bank1
> being memory pages) would the macro work?? Or would I have to switch memory
> pages first?
Another explanation to supplement the others:
Do not think of a macro as the same way you store a subroutine. A macro
initially just sits in your assembler program and is not stored in your
PIC memory. When you use a macro in your program, the assembler will
replace the macro label with the lines of code that is in the macro
itself.

Simple example:

You write a macro:
CNSTM   MACRO
        MOVLW   0X020
        MOVWF   CONSTANT
        ENDM
This stays in your assembler editor.
Later in your program:
        .
        .
        CNSTM           ;ask for macro
        MOVLW   0X039
        SUBWF   CONSTANT,W
        .
        .
When you assemble, the assembler will take the lines from your macro,
and insert it where the macro label is:
        .
        MOVLW   0X020
        MOVWF   CONSTANT
        MOVLW   0X039
        SUBWF   CONSTANT,W
        .
        .
You don't see it (you only see the label) but this is the way it will be
stored in your PIC memory.

Hope this helps
Quentin