Rask Ingemann Lambertsen <[EMAIL PROTECTED]> writes:
> 4. Stack and argument passing.
>
>PicoBlaze has an internal call/return stack which can't be used for
> passing arguments. How will the STACK_POINTER_REGNUM macro and the
> "push" instruction pattern be specified?
For STACK_POINTER_REGNU
I suggest that before you do anything else, you figure out how to pass
arguments to functions and figure out an instruction sequence which
performs
signed comparison.
Thaks for your comments. I start to think it is actally more complicated
that
I had first thought. I must admit that I curre
On Aug 25, 2006, at 2:59 PM, Rask Ingemann Lambertsen wrote:
`indirect_jump'
An instruction to jump to an address which is operand zero. This
pattern name is mandatory on all machines.
I don't see how it can be supported. But most programs don't need it.
Well, the usu
On Fri, Aug 25, 2006 at 06:06:47PM +0200, Armin Vogl wrote:
> Hello,
>
> I would like to ask if it would be possible to write a gcc backend for the
> Xilinx PicoBlaze soft processor.
I'll make a few comments about it.
1. 8-bit wide registers (and ALU).
GCC can generate disappointingly poo
Thanks for answering. I already feared that it wouldn't be trivial after
reading through the documentation ... I think a PicoBlaze backend
would be very intersting for the soft processor community.
Armin
There is no place to request a backend port, other than the e-mail you
sent. Most such req
"Armin Vogl" <[EMAIL PROTECTED]> writes:
> I would like to ask if it would be possible to write a gcc backend for the
> Xilinx PicoBlaze soft processor.
Porting gcc to an 8-bit microcontroller is not completely impossible,
but it is not easy. gcc was written to generate code for 32-bit
processor
Hello,
I would like to ask if it would be possible to write a gcc backend for the
Xilinx PicoBlaze soft processor.
If you never heard about it, please look here:
http://www.xilinx.com/ipcenter/processor_central/picoblaze/picoblaze_user_resources.htm
As I have never programmed anything like a c
