Michael Hennebry wrote:
Perhaps putchar could be a write to a magic port.
IIRC the simulator allows a command line option to
specify that writes to a particular port go to a file.
Yep. That does indeed work. My "bsp.c" is
attached. I adding a "init_bsp()" call to main
and can now run it with this command:
simulavr -d atmega128 -f dry2 -W 0x52,/dev/stderr -Texit
Is there a way to avoid having to call the init_bsp()?
It looks like there is an integer overlow in the code
now. It likely doesn't like 16 bit integers.
I will update the issue with new code in the morning
so others can pitch in. Or is this something that
might be a good example and just included in the
repository?
--
Joel Sherrill, Ph.D. Director of Research & Development
[email protected] On-Line Applications Research
Ask me about RTEMS: a free RTOS Huntsville AL 35805
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#include <stdio.h>
static int magic_putchar(char c, FILE *stream);
static FILE mystdout = FDEV_SETUP_STREAM(magic_putchar, NULL, _FDEV_SETUP_WRITE);
#define special_output_port (*( (volatile char *)0x52))
#define special_exit_port (*( (volatile char *)0x4F))
#define special_abort_port (*( (volatile char *)0x49))
static int magic_putchar(char c, FILE *stream)
{
special_output_port = c;
return 0;
}
void init_bsp(void)
{
stdout = &mystdout;
}
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