Computer 222 - Computer Organization » Fall 2021 » Quiz 6 Interrupts PSW Registers

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Question #1
Interrupts have all these properties, except:
A.   Preemption
B.   Cause no pipeline flush
C.   Priority
D.   A sub-class of Exception
Question #2
Low priority devices should use what class of Interrupt:
A.   NMI
B.   Maskable
C.   Vectored
D.   Non-Vectored
Question #3
What is an Interrupt Vector:
A.   A byte that can be used by an ISR as a branch target offset, a byte provided by an interrupting device to identify itself, and a byte used by an ISR to decode the identity of an interrupting device
B.   A byte that can be used by an ISR as a branch target offset
C.   A byte used by an ISR to decode the identity of an interrupting device
D.   A byte provided by an interrupting device to identify itself
Question #4
Interrupts are processed if what conditions are met:
A.   Vectored with vector present on data bus
B.   Mask and global enable bits are set, it is pending and highest priority
C.   Enabled and pre-emptive
D.   Pending and maskable
Question #5
PSW contains:
A.   Process Software
B.   Program Software
C.   Priority Sequence Word
D.   Program Status Word
Question #6
MIPS PSW contains:
A.   Status register
B.   Interrupt enables, Status register, and Flags
C.   Flags
D.   Interrupt enables
Question #7
MIPS CP0 contains a Cause register, which contains:
A.   Endianness control
B.   Interrupt enables
C.   Exception code + interrupts pending
D.   Exception code only
Question #8
MIPS CP0 contains which registers:
A.   Cause + Status
B.   BadVAddr + Config
C.   EPC + Count
D.   BadVAddr + Config, EPC + Count, and Cause + Status
Question #9
Registers are composed of a linear array of what logic element:
A.   ALU
B.   RS latches
C.   NAND gates
D.   D flip-flops
Question #10
Which sequential logic element is clock-edge triggered:
A.   Latches
B.   NAND gates
C.   ALU
D.   Flip-flops
Question #11
Which clocking scheme helps keep a digital system tightly synchronized (even used in the i8080):
A.   Single-phase clocking
B.   Falling-edge clocking
C.   2-phase clocking
D.   Rising-edge clocking
Question #12
What type of logic block is necessary for an FSM – Finite State Machine:
A.   Latches
B.   ALU
C.   Registers
D.   Decoders
Question #13
What type of analog circuit is necessary for providing a stable clock:
A.   PLL, including a VCXO
B.   ALU
C.   D flip-flops
D.   Inductors
Question #14
What is used to distribute a system clock to all of the system:
A.   PLL tree
B.   Registers
C.   Quartz crystal
D.   Control bus
Question #15
A stable system clock will help keep any digital system:
A.   Indifferent
B.   Synchronized
C.   Asynchronous
D.   Clocked

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