Intel iapx 432 manual Reserved

iAPX 432 Interface Processor Architecture Reference Manual

Alarm, Dispatching, and Reconfiguration State Fields -

The alarm, dispatching ("select process"), and reconfiguration state fields are used to indicate that the processor has responded to that type of signal and signalled the associated Peripheral Subsystem via interrupt. Each has the following organization.

15 bits Ix!

! - response

1--------- reserved

With the response flag, a value of zero indicates that no such response has occured am a value of one indicates that such a response has occured.

Function Request Facility Area -

The function request facility is the part of the Interface Processor which accepts function requests and performs the requested function. The function request facility area of the processor data segment contains a copy of the processor-resident information related to the current or nnst recent function requested. As shown below, the area consists of five contiguous parts. The first part contains the process selection index for the execution environment in which the function should be performed. The second part contains the function state information. The third part contains the op-aJde of the operator requested. The fourth part contains the operands operated upon in performing the requested function. The fifth part is used to record the result of the requested function.

	=	= double b¥te
	1----------------	1 displacement
	function	25
•	----------------result	16"
	1
		1
	1
	operands
	1----------------	9
		1
	1 operator	8
	1----------------	1
	1 function state	1 7
	1----------------	1
	prcs idx.	6
	1----------------	1
	=	=

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