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GFK-0467K Chapter 4 Series 90-30/20/Micro Instructions Set 4-67
4
_____
| |
(enable) —|MASK
_
|-
| |
|COMP_|
| |
| WORD|
| |
(input parameter I1) —|I1 MC|— (miscompare)
| LEN |
|00001|
| |
(input parameter I2) —|I2 Q|— (output parameter Q)
| |
| |
(bit string mask) —|M BN|— (bit number for last miscompare)
| |
| |
(bit number) —|BIT |
|_____|
Parameters:
Parameter Description
enable Permissive logic to enable the function.
I1 Reference for the first bit string to be compared.
I2 Reference for the second bit string to be compared.
M Reference for the bit string mask.
BIT Reference for the bit number where the next comparison should start.
MC User logic to determine if a miscompare has occurred.
Q Output copy of the mask (M) bit string.
BN Number of the bit where the last compare occurred.
LEN LEN is the number of words in the bit string.
Valid Memory Types:
Parameter flow %I %Q %M %T %S %G %R %AI %AQ const none
enable
•
I1 o o o o o o • • •
I2 o o o o o o • • •
M o o o o o† o • • •
BIT • • • • • • • • • •
LEN
•‡
MC • •
Q o o o o o† o • • •
BN • • • • • • • • •
• Valid reference or place where power may flow through the function.
o Valid reference for WORD data only; not valid for DWORD.
† %SA, %SB, %SC only; %S cannot be used.
‡ Max const value of 4095 for WORD and 2047 for DWORD.