Index for interrupt INT 57

Table of Contents by Order
57 - INT 57 - IRQ7 relocated by DESQview
57 - INT 57 - IRQ7 relocated by IBM 3278 emulation control program, OS/2 v1.x
57 - INT 57 C - TI Professional PC - CRT MAPPING HOOK

INT 57 - IRQ7 relocated by DESQview
Range:	INT 57 to INT FF, selected automatically
Note:	this is the default location for older versions; see INT 50"DESQview"
	  for details of interrupt relocation
SeeAlso: INT 50"DESQview",INT 58"DESQview"

INT 57 - IRQ7 relocated by IBM 3278 emulation control program, OS/2 v1.x
SeeAlso: INT 51"IBM 3278",INT 51"OS/2"

INT 57 C - TI Professional PC - CRT MAPPING HOOK
	AX/BX/CX/DX/BP/SI/DI same as on entry to CRT subroutine (e.g. INT 49)
	DS = BIOS system segment
	ES = DE00h
Return: DF/IF flags must be preserved
	ES,DS,BP preserved
	AX,BX,CX,DX,SI,DI may be changed as necessary to modify the original
	  call
Desc:	hooking this vector permits programs to intercept or modify all
	  screen output, including both application calls to INT 49 and
	  calls generated internally by the BIOS which bypass INT 49
Note:	by default, this vector points at an IRET instruction
SeeAlso: INT 49/AH=01h"TI",INT 50"TI Professional"