Re: [avr-gcc-list] BUG: SIG_COMPARATOR on at90s4433 is not working, vector table to short

[Theodore A. Roth]

On Wed, 3 Mar 2004, Klaus Rudolph wrote:

> Hi all,
>
> I tried to compile an c-prog for at443 but got wrong output.
> The vector for the analogcomparator is lost.
>
> For at8515 the vector table is OK.
>
> I have installed actual avr-libc-1.0.2.
>
> Can you reproduce this problem, or maybe fix it :-)
> The vector table for 4433 is simply to short. How can I fix it?
> the crt4433.o file hold an to sort vector list as I saw with objdump....

I can't reproduce the problem. Here's the vector table for a simple
program for 4433:

00000000 <__vectors>:
   0:   0d c0           rjmp    .+26            ; 0x1c
   2:   42 c0           rjmp    .+132           ; 0x88
   4:   24 c0           rjmp    .+72            ; 0x4e
   6:   23 c0           rjmp    .+70            ; 0x4e
   8:   22 c0           rjmp    .+68            ; 0x4e
   a:   21 c0           rjmp    .+66            ; 0x4e
   c:   20 c0           rjmp    .+64            ; 0x4e
   e:   1f c0           rjmp    .+62            ; 0x4e
  10:   1e c0           rjmp    .+60            ; 0x4e
  12:   1d c0           rjmp    .+58            ; 0x4e
  14:   1c c0           rjmp    .+56            ; 0x4e
  16:   1b c0           rjmp    .+54            ; 0x4e
  18:   1a c0           rjmp    .+52            ; 0x4e
  1a:   5b c0           rjmp    .+182           ; 0xd2

And here's the signal handler:

000000d2 <__vector_13>:

SIGNAL (SIG_COMPARATOR)
{
  d2:   1f 92           push    r1
  d4:   0f 92           push    r0
  d6:   0f b6           in      r0, 0x3f        ; 63
  d8:   0f 92           push    r0
  da:   11 24           eor     r1, r1
  dc:   8f 93           push    r24
  de:   9f 93           push    r25
  e0:   af 93           push    r26
  e2:   bf 93           push    r27
    irq_cnt++;

[snip]

Looks OK to me.

Using:
  avr-libc current CVS dev branch.
  gcc 3.3.1
  binutils 2.14 20030612

Ted Roth

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