The registers in the CPU is divided _____registers and ________registers .
A. general purpose, user-visible
B. user-visible, control and status
C. data , address
D. general purpose, control and status
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The range of n-bit twos complement representation is ___________.
A. 0 ~ 2n-1
B. -2n-1~ 2n-1
C. -2n-1~ 0
D. -2n-1~ 2n-1-1
In instruction, the number of addresses is 0, the operand(s)’address is implied, which is(are) in_______.
A. accumulator
B. program counter
C. top of stack
D. any register
The advantage of IMMEDIATE ADDRESSING is ___________.
A. limited address range
B. more memory access
C. limit value range
D. no memory access to fetch operand
After the information flow of fetch sub-cycle, the content of MBR is_____________.
A. operand
B. address of instruction
C. instruction
D. address of operand