Microprocessor Which of the following instruction will never affect the zero flag? ORA R DCR R XRA R DCX Rp ORA R DCR R XRA R DCX Rp ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Assuming LSB is at position 0 and MSB at position 7, which bit positions are not used (Undefined) in flag register of an 8085 microprocessor? 1, 3, 4 1, 2, 5 2, 3, 5 1, 3, 5 1, 3, 4 1, 2, 5 2, 3, 5 1, 3, 5 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor In an intel 8085A, which is the first machine cycle of an instruction? A memory write cycle An op-code fetch cycle A memory read cycle An I/O read cycle A memory write cycle An op-code fetch cycle A memory read cycle An I/O read cycle ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The data lines of 8085 microprocessor are multiplexed with lower order address lines higher order address lines None of these status lines lower order address lines higher order address lines None of these status lines ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Which of the following statements for intel 8085 is correct? Program Counter (PC) specifies the address of the instruction last executed PC specifies the address of the instruction being executed PC specifies the address of the instruction to be executed PC specifies the number of instructions executed so far Program Counter (PC) specifies the address of the instruction last executed PC specifies the address of the instruction being executed PC specifies the address of the instruction to be executed PC specifies the number of instructions executed so far ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The cycle required to fetch and execute an instruction in a 8085 microprocessor is which one of the following? Machine cycle Instruction cycle Clock cycle Memory cycle Machine cycle Instruction cycle Clock cycle Memory cycle ANSWER DOWNLOAD EXAMIANS APP
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