hhh

what advantage does harvard have over a von neuman computer

does not have a instruction/data memory performance bottleneck

an unusual condition caused by executing an instruction in a program,

exception

which statements are true about global variables

increases the size of a.out file, allocated at compile time, allocated in data section.

an unexpected event external to the program that requires the processors attention

interrupt

which statement about using interrupts over polling IO subroutine is false

is blocking, your program must pause while waiting for the status to update

the instruction below indicated that the basic architecture of a processor is

load store

a risc processor is considered a string form of a

load store architecture

defines how the memory regions are used

memory map

an interrupt that is active, but not yet trapped is

pending

the design philosophy of a cisc processor focuses on

reduced number of instruction in a program

what happened if you add 2 positive values and your answer is negative number

sign overflow

which instruction would follow the highlighted data paths

slli t0, t0, 5

what is the main difference between harvard and von neumann and architectures?

there are separate memories for instructions and data

detects an unusual condition and transfers control to the appropriate service routine.

trap

a carry overflow of a signed value indicates an error

true

if you pass a struct to a function as an argument, you pass a copy of the entire structure

true

which statement about using polling IO subroutine over interrupts is false

uses the trap mechanism to communicate eithe mmio device

a program with self modifying code can only execute on a

von neuman architecture

what riscv assembler directive sets aside 4 bytes of memory location and initializes it to a given value

.word

a char datatype is what size

1 byte

what is the decimal value -9 as an 8 bit binary value

1111 0111

what is the following hexadecimal value in binary 0xfa206b19

1111 1010 0010 0000 0110 1011 0001 1001

if we sign extend the 4 digit binary number 1010 to 16 bits, we get what number

1111111111111010

on a riscv processor, how many bytes are allocated for a variable of type Person.

12

a integer datatype is what size

4 bytes

which phases of the instruction cycle are common to all instructions?

Fetch, decode

what bitwise logical operater is used to set a specific bit to 1

OR

a device sent an interrupt to the processor, but is never trapped when the processor is checking for interrupts. where is the problem likely to be

UIE external interrupt enable not set correctly

indicates total size of memory

address space

indicates the size of data at a given location in memory

adressability

which of the following statements about risc computer are false

all of these are true

which statement about exceptions is false

all statements are true

which of the following riscv instructions would you used to clear bit 4 of a register in a single instruction

andi