Index for interrupt INT 32

Table of Contents by Order
32 - INT 32 - VIRUS - "Tiny" Viruses - ORIGINAL INT 21h VECTOR
32 - INT 32 - VIRUS - "Plovdiv 1.3"/"Damage 1.3" - ORIGINAL INT 21h VECTOR
326E - INT 32 - NOISE.SYS 0.53 - API
326E00 - INT 32 - NOISE.SYS v0.53+ - INSTALLATION CHECK
326E01 - INT 32 - NOISE.SYS v0.53+ - GET ENTRY POINT
326E04 - INT 32 - NOISE.SYS v0.55+ - GET INTERRUPT HOOK LIST
326E06 - INT 32 - NOISE.SYS v0.55+ - GET DEVICE DRIVER HEADER
326E10 - INT 32 - NOISE.SYS v0.53+ - STATUS CHECK
326E11 - INT 32 - NOISE.SYS v0.53+ - GET ENTROPY ESTIMATE
326E12 - INT 32 - NOISE.SYS v0.53+ - ADD SAMPLE FROM FAST TIMER
326E13 - INT 32 - NOISE.SYS v0.53+ - ADD 16-BIT SAMPLE TO RANDOM POOL
326E14 - INT 32 - NOISE.SYS v0.53+ - GET FLAGS
326E15 - INT 32 - NOISE.SYS v0.53+ - SET FLAGS
326E16 - INT 32 - NOISE.SYS v0.53+ - READ URANDOM BYTES
326E17 - INT 32 - NOISE.SYS v0.53+ - READ RANDOM BYTES
326E18 - INT 32 - NOISE.SYS v0.6+ - READ CONTROL RECORD
326E - INT 32 - NOISE.SYS - RESERVED FOR FUTURE USE

INT 32 - VIRUS - "Tiny" Viruses - ORIGINAL INT 21h VECTOR
SeeAlso: INT 21/AX=FFFFh"VIRUS",INT 31"VIRUS",INT 44"VIRUS"

INT 32 - VIRUS - "Plovdiv 1.3"/"Damage 1.3" - ORIGINAL INT 21h VECTOR
SeeAlso: INT 31"VIRUS",INT 9E"VIRUS"

INT 32 - NOISE.SYS 0.53 - API
	AH = 6Eh (function ID)
	AL = subfunction (see INT 32/AX=6E00h)
Return: CF set on error
	    AL = error code (see #03166)
	CF clear if successful
Notes:	INT 32 is only a proposed interface for NOISE.SYS. Use the IOCTL READ
	  from the RANDOM device to determine the interrupt and function ID
	  used by the driver, since future versions may use the Alternate
	  Multiplex Interrupt (AMIS) at INT 2Dh.
	the beta v0.51 had a substantially different API on INT 32/AH=6Eh

(Table 03166)
Values for NOISE.SYS error codes:
 00h	subfunction not supported
 FBh	random pool is empty
 FCh	quality of sample is too low
 FDh	too many processes using the API or driver
 FEh	subfunction is disabled in the current build
 FFh	successful

INT 32 - NOISE.SYS v0.53+ - INSTALLATION CHECK
	AX = 6E00h
Return: AL = installation status
	    00h not installed
	    FFh installed
		CX = version (ie, 0123h = Version 1.2.3)
		DX:DI -> signature string

INT 32 - NOISE.SYS v0.53+ - GET ENTRY POINT
	AX = 6E01h
Return: AL = FFh
	DX:DI -> far call hook

INT 32 - NOISE.SYS v0.55+ - GET INTERRUPT HOOK LIST
	AX = 6E04h
Return: AL = status
	    00h = unimplemented
	    04h = DX:BX -> interrupt hook list
	    FEh = subfunction disabled
Note:	the hook list array ends with API interrupt (usually 32h, although
	  it will differ if the API is installed at another interrupt)

INT 32 - NOISE.SYS v0.55+ - GET DEVICE DRIVER HEADER
	AX = 6E06h
Return: AL = number of device drivers in NOISE.SYS chain
	    02h = default (for RANDOM and URANDOM devices)
	AH = AMIS device driver flags (set to 00h for now)
	DX:BX -> first device in chain (see #01646)
SeeAlso: INT 2D/AL=06h

INT 32 - NOISE.SYS v0.53+ - STATUS CHECK
	AX = 6E10h
Return: CF set on error
	    AL = error code (FDh) (see #03166)
	CF clear if successful
	    AL = status
		FFh successful
	    BH = number of processes using the API
	    CX = number of random bytes waiting
	    DX = maximum possible bytes waiting
		(if CX=DX, the pool is full)
Note:	this subfunction is a convenient way to check the driver if any
	  fresh bytes are waiting in the output pool.
SeeAlso: INT 32/AH=6Eh,AX=6E00h,AX=6E11h

INT 32 - NOISE.SYS v0.53+ - GET ENTROPY ESTIMATE
	AX = 6E11h
Return: CF set on error
	    AL = error code (00h,FDh,FEh) (see #03166)
	CF clear if successful
	    EBX = estimated bit count (refer to note below)
	    CL = FRACBITS (number of fractional bits)
	    EDX = low 32-bits of total number of samples added
Note:  the estimated number of fresh random bits is equal to
	  (EAX >> FRACBITS) + ((EAX & ((1 << FRACBITS)-1) / (1 << FRACBITS))
SeeAlso: AH=6Eh,AX=6E00h

INT 32 - NOISE.SYS v0.53+ - ADD SAMPLE FROM FAST TIMER
	AX = 6E12h
Return: CF set on error
	    AL = error code (FCh,FDh,FEh) (see #03166)
	CF clear if successful
	    CX = number of random bytes waiting
Note:	subfunctions 12h and 13h are meant for applications or devices
	  which are able to gather entropy from other sources which are
	  not polled by NOISE.SYS (for example, a communications driver
	  could use this call to sample packet arrival times).
SeeAlso: AX=6E00h,AX=6E10h,AX=6E13h

INT 32 - NOISE.SYS v0.53+ - ADD 16-BIT SAMPLE TO RANDOM POOL
	AX = 6E13h
	DX = sample
Return: CF set on error
	    AL = error code (FCh,FEh) (see #03166)
	CF clear if successful
	    CX = number of random bytes waiting
SeeAlso: AX=6E00h,AX=6E11h

INT 32 - NOISE.SYS v0.53+ - GET FLAGS
	AX = 6E14h
Return: BX = flags (see #03167)
	CX = mask of settable flags in BX
SeeAlso: AX=6E00h,AX=6E15h

Bitfields for NOISE.SYS flags:
Bit(s)	Description	(Table 03167)
 0	MS Windows active
 1-5	reserved
 6	clock drift sampling
 7	video retrace drift sampling
 8	network access sampling (not implemented yet in 0.53)
 9	CD-ROM access sampling (not implemented yet in 0.53)
 10	DOS spinner
 11	DOS process start/end and miscellaneous process activity sampling
 12	mouse movement/button sampling
 13	disk sampling (INT 13)
 14	keystroke timings
 15	reserved for hardware RNG

INT 32 - NOISE.SYS v0.53+ - SET FLAGS
	AX = 6E15h
	BX = flags (see #03167)
Return: BX = new flags
Note:	flags which AX=6E14h indicates are not settable should be masked off
	  by ANDing with the CX returned by AX=6E14h
SeeAlso: AX=6E00h,AX=6E14h

INT 32 - NOISE.SYS v0.53+ - READ URANDOM BYTES
	AX = 6E16h
	CX = number of bytes
	ES:DI -> buffer
Return: CF set on error
	    AL = error code (FDh,FEh) (see #03166)
	CF clear if successful
	    CX = number of random bytes read
SeeAlso: AX=6E00h,AX=6E12h,AX=6E17h

INT 32 - NOISE.SYS v0.53+ - READ RANDOM BYTES
	AX = 6E17h
	CX = number of bytes
	ES:DI -> buffer
Return: CF set on error
	    AL = error code (FBh,FDh,FEh) (see #03166)
	CF clear if successful
	    CX = number of random bytes read
SeeAlso: AX=6E00h,AX=6E16h

INT 32 - NOISE.SYS v0.6+ - READ CONTROL RECORD
	AX = 6E18h
	CX = buffer size
	ES:DI -> buffer
Return: AL = status
	    00h unimplemented (before v0.6)
	    FEh subfunction is disabled
	    FFh successful
		CX = number of bytes read
Note:	the control record corresponds to the IOCTL Read record for the RANDOM
	  device

INT 32 - NOISE.SYS - RESERVED FOR FUTURE USE
	AH = 6Eh
	AL = 19h to 3Fh
Return: AL = 00h
Note:	these functions are reserved for future use; user additions to the
	  the driver should use subfunctions 40h to FFh.