INT 20h (32)            Terminate Program
 INT 21h (33)            DOS Service Calls
 INT 22h (34)            Terminate Address
 INT 23h (35)            Break Address
 INT 24h (36)            Critical-Error Handler Address
 INT 25h (37)            Absolute Disk Read
 INT 26h (38)            Absolute Disk Write
 INT 27h (39)            Terminate and Stay Resident
 INT 28h (40)            Reserved
 INT 29h (41)            Reserved
 INT 2Ah (42)            Reserved
 INT 2Bh (43)            Reserved
 INT 2Ch (44)            Reserved
 INT 2Dh (45)            Reserved
 INT 2Eh (46)            Reserved
 INT 2Fh... (47)         Multiplex Interrupt                         Overview
 INT 2Fh (47)            Multiplex Interrupt (PRINT)                . DOS 3.1
 INT 2Fh (47)            Multiplex Interrupt (ASSIGN)               . DOS 3.1
 INT 2Fh (47)            Multiplex Interrupt (SHARE)                . DOS 3.1
 INT 2Fh (47)            Multiplex Interrupt (APPEND)               . DOS 3.1
 INT 30h (48)            Reserved
 INT 31h (49)            Reserved
 INT 32h (50)            Reserved
 INT 33h (51)            Reserved
 INT 34h (52)            Reserved
 INT 35h (53)            Reserved
 INT 36h (54)            Reserved
 INT 37h (55)            Reserved
 INT 38h (56)            Reserved
 INT 39h (57)            Reserved
 INT 3Ah (58)            Reserved
 INT 3Bh (59)            Reserved
 INT 3Ch (60)            Reserved
 INT 3Dh (61)            Reserved
 INT 3Eh (62)            Reserved
 INT 3Fh (63)            Reserved