Re: [Simulavr-devel] Change IO-port value

[Marek Pietrzak]

PINx value is meant to be levels on wires and cannot be changed 
currently in the same manner as "true" registers. There's TCL ui which 
probably can do that externally but personally never tried that.

Marek

On 09/06/2012 08:25 PM, Valber wrote:
> Hi everybody!
> I want to try debuging GNU ASM programms by simulavr, but have no ideas
> how to change registers values while step by step debuging, i.e.
> simulate events
>
> =======exampe.S=======
>
> #include <avr/io.h>
> #define SFR(X) _SFR_IO_ADDR(X)
> temp = 16
> START = PD0
> STOP = PD1
>     .section .text
>     .global main
> main:
>     rjmp init
> init:
>     ser    temp
>     out    SFR(DDRB),temp
>     out    SFR(PORTB),temp
>     clr    temp
>     out    SFR(DDRD),temp
>     ldi    temp,0x03
>     out    SFR(PORTD),temp
> waits:    sbis    SFR(PIND),START
>     rjmp    waits
>     nop
>     nop
>     nop
>     nop
>     rjmp    init
>
> ============================
>
> Compile:
>
> avr-gcc -Wa,--gstabs -mmcu=atmega16a example.S -o example.o
>
> Simulavr - start server and watch registers state:
>
> simulavr -g -P simulavr-dip -X -d atmega16
>
> How I can change PIND state? I'm using Emacs as IDE.
>
>
> Best Regards
> Valber
>
>
>
>
>
>
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