54 INT 54 - IRQ4 relocated by DESQview
54 INT 54 - IRQ4 relocated by IBM 3278 emulation control program, OS/2 v1.x
54 INT 54 - TI Professional PC - ACTIVATE TASK SUBROUTINE
54 INT 54 - Tandy 2000 - LINE PRINTER
545400 INT 54 U - Toshiba PCMCIA2 - INSTALLATION CHECK