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Re: Prodos Woes



"Dave Althoff Jr" <dalloff@gcfn.org> wrote in message
news:bshlvl$hr5$1@acme.gcfn.org...
: Bill Garber (willy46pa@comcast.net) wrote:
:
: : "Bender MX" <no@morespam.com> wrote in message
: : news:HMXCb.69905$bC.24737@clgrps13...
: : : Hi Bill,
: : :
: : :   Thanks for the reply! ... But I run into "No Buffers
Avail"
: : : when I try to reload the picture with a "BLOAD PIC,A1024"
: : : Even with a reset of MAXFILES=3 It happens?!
:
: : Ok, first, I think you need to define your memory location
: : as A$xxxx as HEX. You should anyway. Also, on a BLOAD the
: : file that you have previously BSAVE'd will contain a few
bytes
: : header with the location to be BLOAD'd into. No need to
define
: : this location on a BLOAD. Now getting down to the base of
your
: : problem. If you wish to poke data into the screen area, the
best
: : way will be to first transfer the screen area to memory that
is
: : free for use. Then, BSAVE it. Now to BLOAD it, then transfer
it
: : back to screen area with code. I believe you can also load
screen
: : data into another page of memory and redefine that area as
the
: : new screen area, not sure though. Anyone???
:
: You're on the right track.  First of all, BSAVE and BLOAD allow
you to use
: either decimal or hex numbers.  Just use a $ if you are using
hex.
: Second, if you are loading into the same area of memory you
saved from,
: then ProDOS will keep track of it, so you need not specify an
address on a
: load.  But you do need to specify an address if you are loading
into
: memory other than where the data originally came from.
:
: I just posted an Assembly routine that allows you to load a
text page into
: $6000, then move it down to $400.  I wrote it on the fly (using
the
: Mini-Assembler in my IIgs to generate the opcodes) but I didn't
test it;
: that's left as an exercise for the reader.  8-)

You posted it to "where"?

Bill @ GarberStreet Enterprizez };-)
Web Site - http://garberstreet.netfirms.com
Email - willy4SPAM6pa@comXcast.net
Remove - SPAM and X to contact me



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