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Re: Screen Holes (was: Prodos Woes)
Hi, y'all!
"Paul R. Santa-Maria" <paulrsm@buckeye-express.com> wrote in message news:<3FF6E758.B94BA646@buckeye-express.com>...
> To copy a 40-column text screen from $6000 without touching
> the screen holes:
<--- snip --->
Here's another version that's one instruction shorter:
;
;
;
LDX #0
L1 LDA $6000,X
STA $0400,X
LDA $6100,X
STA $0500,X
LDA $6200,X
STA $0600,X
LDA $6300,X
STA $0700,X
INX
CPX #$78
BNE L2
LDX #$80
L2 CPX #$F8
BNE L1
RTS
Willi