22 CHAPTER 2. INTRODUCTION TO LOOPING
LDAA 0,X
ADDA $10,X
STAA $20,X
INX
DECB
BRA CALLOOH
CALLAY
SWI
ORG $D000
FCB $55, $6F, $66, $4D, $44, $62, $72, $6E
FCB $41, $42, $43, $44, $45, $46, $47, $48
FCB 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16
; NOTE: YOU CAN ENTER NUMBERS EITHER IN DECIMAL OR HEX!
; AFTER YOU RUN THE PROGRAM, DO
; MD D000 D02F
; TO SEE WHAT THE PROGRAM DOES
The following program prints the sixteen values stored in the consecutive location
starting from $D020. To make the output more user friendly, each number is
followed by a comma and a space.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
ORG $C600
LDAA #$0A
JSR OUTA
JSR OUTA
LDAB #$10
LDX #$D020
KINGS TSTB
BEQ CABBAGES
JSR OUT1BYT
LDAA #$2C
JSR OUTA
LDAA #$20
JSR OUTA
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