What is the best way to place strings in absolute code memory? In my
programs, I put a header section that contains copyright info and other
stuff that our in-house programming software uses to determine which
hardware it is programming. In assembly it looks like this...
INFO CODE 0x0100
dt "Copyright © 2012My Company, Inc.", 0x0D, 0x0A
dt "SuperX Module v.1.0.0 Built 07/14/2012 12:00:00", 0x0D,0x0A
END
Apparently, something like this is not supported:
static __code unsigned char __at(0x0100) info[] =
"Copyright blah blah\n"
"SuperX Module.....";
(I imagine that even if the above was supported, it would use the PIC's
"packed" string storage... DA instead of DT... which I can't use, anyway.)
So we have to go to assembly. By trial and error, I have concluded that
__asm / __endasm and __asm__ need to be inside of a method, i.e. cannot
be global. So I created a dummy method that looks like this (in a file
by itself)...
void info(void)
{
__asm
org 0x0100
dt "Copyright © 2012My Company, Inc.", 0x0D, 0x0A
dt "SuperX Module v.1.0.0 Built 07/14/2012 12:00:00", 0x0D,0x0A
__endasm;
}
However, the ORG statement causes a linker error: 'multiple sections
using address 0x100'. If I comment out the ORG, the code is not absolute
and I cannot figure out any compiler options to place it absolutely. If
I add an org statement within the first method in my main file, things
seem to link ok (seems less than ideal).
Is this really the best way to do this?
Thanks
-drew
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