Pages are a pain, but you can use the Indirect (pointer) addressing to=20
hit ANY byte in memory without being concerned with Paging. On the
18F chips there are three (3) Indirect (pointer) registers, and the
instruction set has some very nice auto-increment/decrement=20
instructions to make walking through memory rather neat & clean=20
(and fast).  If you are used to C pointers it should be a fairly easy
learning curve.  Also, there are memory-to-memory move instructions
which are also unconcerned with Paging --- they ARE double word
instructions, however.

Roy

>>
>>No, the 18F1x20 only have 256 bytes of RAM, all in bank 0.  Once
>>you've set BSR to 0, the fact that the first 128 bytes are access RAM
>>doesn't really buy you anything; you can access it as banked or
>>unbanked.  Your statements are correct for PICs which have RAM in bank
>>1.
>
> Things like this make me very thankful that the AVR has no pages.
>

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