[Icc-mot] ICC12 V7.02 paging question

[Edward Karpicz]

Jim Fiocca wrote:

>I can't seem to get the syntax quite right for paging.
> I have a project in assembly language and I've just run out of non-paged 
> memory.
> I'm building from a command line with a Makefile.  My processor is an 
> MC9S12E128.
>
> How do I get the PAGE_38 addresses to assemble to $8000 but load to 
> $388000?
>
> If I put this in the source file:
>    .area    PAGE_38(rel,con)
>    nop
> TEST_38::
>    nop
>
> And this in the linker options:
>        -bPAGE_38:0x388000.0x38bfff
>
> Then I get an ilink12.exe Application Error (pop-up) and this on the 
> console:
> !E duart.o(1047): internal error, can't find matching memory map 56
>


Linker crashes like if two conditions are true 1) if custom area starts 
 >$FFFF and 2) you have global labels in your custom area >FFFF. Try changing 
in your code

 TEST_38::

to

 TEST_38:



But I think you won't be able to get above the FFFF-limit without "paged" 
area attribute. Try changing

    .area    PAGE_38(rel,con)

to

    .area    PAGE_38(paged)




>
> If I put this in the source file:
>    .area    extcode(paged)
>    nop
> TEST_38::
>    nop
>
> And this in the linker options:
>        -bextcode:0x388000.0x38bfff
>
> Then I get this error on the console:
> !E duart.o(1047): expanded memory high address 0x38bfff must have 0xFFFF 
> as offset
>

This was added probably to make "S2 Records Only" option working equally 
well for S12 and HC12 derivatives. C000-FFFF should be remapped to highest 
available PPAGE lastpage, 4000-7FFF should be remapped to lastpage-1. I'm 
also not very happy with this feature. I think that when "S2 Records Only" 
is off, then linker shouldn't complain about not page-boundary-aligned upper 
address.
BTW this "S2 Records Only" feature doesn't work for S12X, because 4000-7FFF 
should be remapped to lastpage-2 and not to lastpage-1.
BTW2 "S2 Records Only" option doesn't work if "Make Paged Functions Default" 
is off...


Regards,
Edward


>
> My other options to the linker are
>  -m -g -R -fmots19
> And I also tried
> -s2_cpu
>
>
> Thanks,
> Jim
>
>
>
> _______________________________________________
> Icc-mot mailing list
> Icc-mot at imagecraft.com
> http://dragonsgate.net/mailman/listinfo/icc-mot