Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!pasteur!ucbvax!UCONNVM.BITNET!STEIN
From: STEIN@UCONNVM.BITNET
Newsgroups: comp.sys.apple
Subject: Block moves
Message-ID: <8804172225.aa09835@SMOKE.BRL.ARPA>
Date: 18 Apr 88 03:15:00 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 35

Can someone give me an example using a block move (MVP or MVN)
on the 65816?

I know that you put the starting address (lower 16 bits) in X,
destination address (lower 16 bits) in Y, the # of blocks less 1
in the accumulator and then include the instruction

mvp  sourcebank,destbank

but I'm not certain how to put the source and destination banks
in there.  My guess is that if I have statements such as:

source ds 500
dest   ds 500

somewhere in my program and want to move say 25 bytes starting at
source+60 to a location starting at dest+90 I can do something like
the following:

clc
lda #source
adc #60
tax
clc
lda #dest
adc #90
tay
lda #25
mvp source,dest

Will that work?

ARPA:   stein%uconnvm.bitnet@mitvma.mit.edu        Alan H. Stein
BITNET: STEIN@UCONNVM                          University of Connecticut
UUCP:   ...ihnp4!psuvax1!UCONNVM.BITNET!STEIN        at Waterbury
CompuServe: 71545,1500  Genie:  ah.stein       Department of Mathematics