Int 19H [PC] [AT] [PS/2] Reboot system

Reboots the operating system from the floppy disk or fixed disk drive.

Call with:

Nothing

Returns:

Nothing

Notes:

The bootstrap routine reads Sector 1, Track 0 into memory at location 0000:7C00H and transfers control to the same address. If attempts to read a boot sector from the floppy disk or fixed disk are unsuccessful, control is transferred to ROM BASIC by execution of an Int 18H.

If location 0000:0472H does not contain the value 1234H, a memory test will be performed before reading the boot sector.