Microprocessor Which of the following instruction will never affect the zero flag? ORA R XRA R DCR R DCX Rp ORA R XRA R DCR R DCX Rp ANSWER DOWNLOAD EXAMIANS APP
Microprocessor In an intel 8085A, which is the first machine cycle of an instruction? An op-code fetch cycle An I/O read cycle A memory write cycle A memory read cycle An op-code fetch cycle An I/O read cycle A memory write cycle A memory read cycle ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The number of output pins in 8085 microprocessors are 40. 19. 27. 21. 40. 19. 27. 21. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor When an 8085 microprocessor is reset, the address bus contains 0043H 0000H 003CH 002CH 0043H 0000H 003CH 002CH ANSWER DOWNLOAD EXAMIANS APP
Microprocessor HLT opcode means load data to accumulator. end of program. load accumulator with contents of register. store result in memory. load data to accumulator. end of program. load accumulator with contents of register. store result in memory. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor When .9432 E – 4 is subtracted from .5452 E – 3 in normalized floating point mode .5452 E – 3 is changed to 5.452 E – 4 but .9432 E – 4 is not changed None of the numbers is changed Both Ihe numbers are changed and their exponents are, made equal to -5 .9432 E – 4 is changed to .09432 E – 3 and .5452 E – 3 is not changed .5452 E – 3 is changed to 5.452 E – 4 but .9432 E – 4 is not changed None of the numbers is changed Both Ihe numbers are changed and their exponents are, made equal to -5 .9432 E – 4 is changed to .09432 E – 3 and .5452 E – 3 is not changed ANSWER DOWNLOAD EXAMIANS APP
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