10 print"this program test LD operation at the start of drum" 22 restore120:fori=0to18:reada:poke&hc000+i,a:nexti:defusr=&hc000 20 out&hc6,5:out&hc7,3 30 'load instrument 11 35 out&h7e,&h50:out&h7f,&h7e 36 fori=0to100:nexti 40 out&h7e,32:out&h7f,&h52 41 out&h7e,&h38:out&h7f,&hf3 50 out&h7e,8:out&h7f,&h11 60 'NOP 70 a=usr(0) 90 fori=0to1000:nexti 100 out&h7e,&h68:out&h7f,0 120 data &hf3,&h3e,&h50,&hd3,&h7e,&h3e,&h00,&hd3,&h7f 130 data &h3e,&h68,&hd3,&h7e,&h3e,&h80,&hd3,&h7f,&hfb,&hc9