RE: [avr-gcc-list] Unrecognizable insn

[Shubham Jain]

Hello,
I am using gcc version:
gcc version 3.2 20020903 (Red Hat Linux 8.0 3.2-7)

Do you have idea about using external RAM? You have seen what I am doing.
Is it correct? How do I define the arrays in the external RAM?

Shubham Jain

> I have been unable to reproduce this on gcc 4.1 and 3.3.3
>
> This might be related to versions so check which winavr/gcc you are using.
>
> The code are I got from 3.3.3 put unused arrays on the stack!! The error
> suggests the unrecognised move is the load of frame pointer - so maybe
> this got fixed sometime.
>
> I have not check definition, but I assume that you wanted array on
> program_memory??
>
>
>
>
> "Shubham Jain" <address@hidden> wrote:
>
>>Hello,
>>I am facing problem in an image processing program.
>>
>>The attached file avr1.c in avr1.zip when executed with the following
>>command line produces the error Unrecognizable insn.
>>
>>avr-gcc -mmcu=atmega128 avr1.c
>>-Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff
>>
>>Error:
>>avr1.c: In function `main':
>>avr1.c:16: error: unrecognizable insn:
>>(insn 29 27 73 0 0x400178c4 (set (reg:HI 55)
>>        (const_int 44838 [0xaf26])) -1 (nil)
>>    (nil))
>>avr1.c:16: internal compiler error: in extract_insn, at recog.c:2175
>>Please submit a full bug report,
>>with preprocessed source if appropriate.
>>See <URL:http://gcc.gnu.org/bugs.html> for instructions.
>>
>>A simple for loop is causing the error. If I remove the for loop, then
>>there is no such error. The problem is the size of the arrays that I have
>>taken but I cannot reduce the size and so I am using external RAM. But
>> the
>>problem remains.
>>
>>Thanking you,
>>Shubham Jain
>>
>>
>
>
> --
> Andy Hutchinson
>
>
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