[avr-gcc-list] RE: ATMega128 RAMPZ behaviour changed ?

[Simon Eatough]

 Hi Eric 
Thanks for your reply, looking into it a bit further maybe its a compiler 
problem then:-

below is listing of code.
// snip
SamplePtr is unsigned long.
alarm is at 0xc7e1 
  
   SamplePtr = &alarm;
   143e8:       81 ee           ldi     r24, 0xE1       ; 225
   143ea:       97 ec           ldi     r25, 0xC7       ; 199
   143ec:       aa 27           eor     r26, r26
   143ee:       97 fd           sbrc    r25, 7
   143f0:       a0 95           com     r26                     << breaks 
here.. 
   143f2:       ba 2f           mov     r27, r26
   143f4:       80 93 18 01     sts     0x0118, r24
   143f8:       90 93 19 01     sts     0x0119, r25
   143fc:       a0 93 1a 01     sts     0x011A, r26
   14400:       b0 93 1b 01     sts     0x011B, r27
       temp_value = pgm_read_byte_far(SamplePtr);
   14404:       ab bf           out     0x3b, r26       ; 59    << RAMPZ loaded 
with 0x FF here
   14406:       fc 01           movw    r30, r24
   14408:       87 91           elpm    r24, Z+
   1440a:       80 93 26 01     sts     0x0126, r24

// snip 

GCC 3.3.1

Any comments ? cheers 
Simon.