Sometimes step or next can get mixed up if it is not clear where the end of
the source code line matches up with the end of the generated assembly.
Perhaps the reason this occurs here is that your code is wrong - the while
loop does nothing, and may well have been completely removed by the
optomiser. If you want to use simple loops to generate delays, then don't
forget to make the loop variable volatile!
> Hi,
>
> I am having some problems using msp430-gdb. In certain points of code, if
I
> issue a "next" or "step" command on msp430-gdb it doesn't return to
prompt.
>
> int main(void)
> {
> WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
> P1DIR |= 0x01; // Set P1.0 to output
direction
>
> for (;;)
> {
> unsigned int i;
>
> P1OUT ^= 0x01; // Toggle P1.0 using
exclusive-OR
>
> i = 50000; // Delay
> ==>do (i--); // It doesnt return if I type 'next' or 'step' here
> while (i != 0);
> }
> return 0;
> }
>
> I'm using gdb 5.1.1, gcc 3.2.3 and I got mspgcc from CVS at 09/09/2004.
>
> uname -a
> Linux unlink 2.6.8-gentoo-r3 #3 SMP Thu Sep 9 17:04:28 BRT 2004 i686
Intel(R)
> Pentium(R) 4 CPU 2.00GHz GenuineIntel GNU/Linux
>
> Thank you in advance,
>
> Marcos
>
>
>
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