On Wed, Oct 15, 1997 at 12:17:40AM +0200, Eric van Es wrote:

> And while we are at it would some one explain how to go about creating and
> reading a lookup table?

Sure, but what kind of lookup table? When programming a PIC in assembler,
a "lookup table" usually refers to a retlw table that is necessary to
use ROM for storing any kind of data - when using a C compiler this will
get done for you, e.g. the following array is used in a 7 segment display
routine to translate digits into 7 segment patterns; you don't have to
worry about how to implement it - the compiler does it.

static const unsigned char digits[10] =
{
        0x5F,           /* 0 */
        0x06,
        0x3B,
        0x2F,           /* 3 */
        0x66,
        0x6D,
        0x7D,
        0x07,           /* 7 */
        0x7F,
        0x6F,
};

Using this later - segcnt is a segment mask:

         PORTB |= segcnt & digits[curval % 10];


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