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The following figure shows a port address decoder interfaced to an 8086 CPU, (According to text book) 07 Din Data Bus A7 A6 Dout

 

The following figure shows a port address decoder interfaced to an 8086 CPU, (According to text book) 07 Din Data Bus A7 A6 Dout AS A4 LE 00 E1 E2 E3 01 02 03 04. A3 C (LSB) 8 74LS138 A2 A 05 07 Din Dour -LO 06 12 L3 L4 07 Data pu %3D Din Dou L7 LE What is the instruction that checks if the switch 3 is pressed? O a. IN AL,F4H - AND AL, 08H O b. IN AL,F2H - AND AL, OF7H O c. IN AL,F2H - AND AL, 08H O d. IN AL,F4H - AND AL,OF7H

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