ECE :: Microprocessors
-
Microprocessor 386SX is a 16/32 bit microprocessor. It has
-
Assertion (A): An instruction cycle consists of fetch and execute cycles.
Reason (R): Fetch cycle has one machine cycle but execute cycle may have one or more machine cycles depending on length of instruction.
-
Instruction cycle is the time required to complete the execution of an instruction.
-
The contents of F register in 8085 are 01010001. This means
-
In a microprocessor
-
Consider the following rules in Fortran
- A signed or unsigned real variable name or a real constant is a real expression.
- Two real expressions connected by an arithmetic operator is a real expression.
- A real variable or constant exponential by an integer constant or integer variable is not valid
-
Which of the following is true?
-
Which addressing mode is suitable only for these instructions in which there is only one operand?
-
Assertion (A): Microprocesspr 8085 has six 8 bit registers B, C, D, E, H L.
Reason (R): B - C, D - E, H - L may be combined to form register pairs to hold 16 bits data.
Whatsapp
Facebook
|
A.
During addition if the carry into and carry out of the sign bit do not match then an overflow has occurred
|
|
B.
During addition if the carry into and carry out of the sign bit don't match then an overflow or underflow has occurred
|
|
C.
During addition if the carry into and carry out of the sign bit match then an overflow or underflow has occurred
|
|
D.
During addition if the carry into and carry out of the sign bit match then an overflow has occurred
|