On Thu, 18 Sep 2008 15:37:51 +0100, Geoff Winkless <[EMAIL PROTECTED]>
wrote:
> "test-up" would therefore be
[snip]

D'oh; of course this is wrong (one line in mode 4 is 128 bytes, not 256) so
you'd have to add 128 to IX (or HL) rather than increasing I (or H) but you
get the idea.

G

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