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Microprocessor

Microprocessor
How many bytes in a zero memory page should be reserved for vectors used by RST instructions?

 128.
 32.
 64.
 16.

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Microprocessor
_____________is used to read the status of the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by loading into the A register a byte which defines the condition of the mask bits for the interrupts.

 RIM
 EI
 DI
 SIM

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Microprocessor
The maximum number of seven segment displays that can be connected to 8279 is

 18
 12
 8
 16

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Microprocessor
A 37 bit mantissa has an accuracy of

6 decimal places
8 decimal places
10 decimal places
11 decimal places

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Microprocessor
RST0 - RST7 are the __________ in 8085.

 hardware interrupts
 logical interrupts
 conditional interrupts
 software interrupts

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Microprocessor
When any data transfer instruction, to transfer the data from memory to microprocessor, is executed the condition flags are

 always reset
 affected indicating specific conditions
 always set
 not affected

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