GE 90-30/20/Micro manual Input index -NX NX- output index

4

SRCH_EQ and SRCH_NE (INT, DINT, BYTE, WORD)

SRCH_GT and SRCH_LT

SRCH_GE and SRCH_LE

Use the appropriate Search function listed below to search for all array values for that particular operation.

Abbreviation	Function	Description
SRCH_EQ	Search Equal	Search for all array values equal to a specified value.
SRCH_NE	Search Not Equal	Search for all array values not equal to a specified value.
SRCH_GT	Search Greater	Search for all array values greater than a specified value.
	Than
SRCH_GE	Search Greater	Search for all array values greater than or equal to a
	Than or Equal	specified value.
SRCH_LT	Search Less Than	Search for all array values less than a specified value.
SRCH_LE	Search Less Than	Search for all array values less than or equal to a specified value.
	or Equal

Each function has four input parameters and two output parameters. When the function receives power, the array is searched starting at (AR + input NX). This is the starting address of the array (AR) plus the index into this array (input NX).

The search continues until the array element of the search object (IN) is found or until the end of the array is reached. If an array element is found, output parameter (FD) is set ON and output parameter (output NX) is set to the relative position of this element within the array. If no array element is found before the end of the array is reached, then output parameter (FD) is set OFF and output parameter (output NX) is set to zero.

The valid values for input NX are 0 to LEN — 1. NX should be set to zero to begin searching at the first element. This value increments by one at the time of execution. Therefore, the values of output NX are 1 to LEN. If the value of input NX is out-of-range, (< 0 or ≥ LEN), its value is set to the default value of zero.

_____

(enable)

EQ_

WORD

(starting address) —AR FD— LEN 00001

(input index) —NX NX— (output index)

(object of search) —IN

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GFK-0467K Chapter 4 Series 90-30/20/Micro Instructions Set 4-91