Re: [avr-gcc-list] file hex form converter reference

[rusty+avr-gcc-list]

Here's something that reads standard input and writes standard output,
written in plain old c.  I'm guessing your problem is that the
variable you were using with getchar was a char instead of an int, and
you need to mask off the high bytes when you give it to printf.

# include <stdio.h>

main(int argc, char **argv) {
    int        ch, i;

    i = 0;

    while ((ch = getchar()) != EOF) {
        fprintf(stdout, "0x%02x, ", (0xff & ch));
        if (i++ > 8) {
            fprintf(stdout, "\n");
            i = 0;
        }
    }
}