Just a little program I whipped up for the Vintage Computer Festival Midwest one year. It should produce a fancy scrolling display as I demonstrated in Episode 10 of the series, here.
READY.
MONITOR
MONITOR
PC SR AC XR YR SP
; FB000 00 00 00 00 F9
L"BUSINESSCARD",8
SEARCHING FOR BUSINESSCARD
LOADING
D $F1300 $F1344
. F1300 A0 04 LDY #$04
. F1302 A2 00 LDX #$00
. F1304 B9 1E 13 LDA $131E,Y
. F1307 9D 00 04 STA $0400,X
. F130A 9D 00 05 STA $0500,X
. F130D 9D 00 06 STA $0600,X
. F1310 9D 00 07 STA $0700,X
. F1313 88 DEY
. F1314 D0 02 BNE $1318
. F1316 A0 04 LDY #$04
. F1318 E8 INX
. F1319 D0 E9 BNE $1304
. F131B 4C 23 13 JMP $1323
. F131E 0E 60 02 ASL $0260
. F1321 26 0E ROL $0E
. F1323 AE 12 D0 LDX $D012
. F1326 E0 FF CPX #$FF
. F1328 D0 F9 BNE $1323
. F132A F0 01 BEQ $132D
. F132C EA NOP
. F132D 18 CLC
. F132E A9 CC LDA #$CC
. F1330 8D 16 D0 STA $D016
. F1333 A9 10 LDA #$10
. F1335 69 02 ADC #$02
. F1337 8D 11 D0 STA $D011
. F133A CE 36 13 DEC $1336
. F133D 10 E4 BPL $1323
. F133F A9 07 LDA #$07
. F1341 8D 36 13 STA $1336
. F1344 4C 23 13 JMP $1323
X