You can call the LOAD routine directly from machine language by transferring control to 0200H. Then, if the tape recorder is running, the next program loads. To try this from BASIC, enter this one-line program:
10 LET U=USR(512)Start the recorder. When the quiet leader comes up, run the program. In a machine language routine, call 0200H. Combine this with “Interface to the Real World” (Jan. 81) to control your recorder and automatically run program sequences. (Note: on our 1K ZX80, 518 as the decimal address worked; 512 did not.–AZ)