| Routines

13477: THE 'IN' FUNCTION (offset 44)

The address of this routine is found in the table of addresses. It is called indirectly via fp_calc_2. This subroutine handles the function IN X. It inputs at processor level from port X, loading BC with X and performing the instruction 'IN A,(C)'.
f_in | 13477 | CALL FIND_INT2 | The 'last value', X, is compressed into BC.
| 13480 | IN A,(C) | The signal is received.
| 13482 | JR IN_PK_STK | Jump to stack the result.