57935 | 3A12D6 | LD A,(54802) | Is there a routine address in bytes 17 and 18 of the buffer in page 214? |
57938 | A7 | AND A | |
57939 | C8 | RET Z | Return if not (buffer is free) |
57940 | C1 | POP BC | Otherwise drop the return address from the stack and return to the main loop |
57941 | C9 | RET |