Last Updated or created 2022-05-12

Part 1 of my 680x computer.

Running a little program to read dipswitches and displaying them using leds.

0000 CE 8020 ; LDX #$8020 
0003 6A 01   ; DEC 1,X
0005 86 04   ; LDA A A
0007 A7 02   ; STA A 2,X
0009 A7 03   ; STA A 3,X
000B A6 00   ; LDA A 0,X
000D A7 01   ; STA A 1,X
000F 20 FA   ; BRA

Design of sound chip intergration