Actually not a compiler bug per se ... compiler was doing what it was=20
told, but not until link step was it known that program code that=20
crossed a page boundary needed jumps that won't fit in the size of the=20
jump instruction, or something like that.  Basically what I was telling=20
it to do - put some functions in their own PSEG - wasn't going to be=20
possible once they reached a certain size and there is no sensible=20
workaround.

The final result is that compiler team is going to update the XC8=20
documentation to advise on how to handle this.

For me, I did some dumb tweaks and will ship with things not ideal but=20
working.

J


Jesse Lackey wrote:
> ...compiler bug, someone @ microchip did some workarounds that are not
> viable for my project and require buying the $1000 PRO version.  And did
> not directly address the fact that these errors shouldn't occur and no
> information about when XC8 would be fixed.
>
> At least it was a timely not-useful response from Microchip.
>
> J
>
>
> Jesse Lackey wrote:
>> Hi All, I'm working around a weird problem, I'm using XC8 V1.34 and a
>> PIC16F1789.
>>
>> At the moment this problem (which has come up several times) is in my
>> bootloader, in its own PSECT.  I have the memory range 0x3800 to 0x3FF0
>> reserved for it.
>>
>> The code I have uses almost the whole thing, so I want to reserve a
>> larger range: 0x3400 to 0x3FF0.  In doing, I get many "fixup overflow"
>> errors.  Some googling yields not much, basically "it is a bug" and "try
>> this", which doesn't work.  It has something to do with RAM and program
>> memory banks, which I don't know much about because that's XC8's problem
>> to deal with.
>>
>> I'm not even close to using available RAM/program memory in this chip.
>>
>> The lines of code with this problem are a simple access in an array of
>> bytes.
>>
>> Wow, so tired of XC8 bugs/deficiencies.
>>
>> Tx for ANY advice.
>> J
>>
--=20
http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.