INT 18h (24)             BASIC Loader Service

Activates Cassette BASIC.


Notes:         This service transfers control to F600:0, which is
the location in ROM of the standard BASIC
interpreter. This interrupt works only on IBM
computers. Compatibles do not have BASIC in ROM but
must instead run a disk-based version of BASIC,
usually known as GW-BASIC.

This interrupt is executed if the Power-On Self Test
(POST) is unable to read the operating system off a
floppy or fixed disk.

INT 18h (24) BASIC Loader Service