piclist 2002\02\26\070719a >
Thread: lookup tables
face BY : Trevor Page email (remove spam text)

Hi all,

Really basic question for those of you who have experience with AVR devices.

I wish to implement a lookup table. On the AVR there doesn't appear to be an
instruction that's equivalent to the PIC's convenient "RETLW" instruction.
It seems that I need to actually have two instructions per lookup table
entry on the AVR, such as:

CPI Rd, value
BREQ an_address
CPI Rd, another_value
BREQ an_address

Am I missing something here? I feel there must be a method using one
instruction per enry, but I can't see how.



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