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Given the following code segment, with all numbers being in hexadecimal values. All arithmetic and branch instructions are shown. Each arithmetic operation takes 4 clock
Given the following code segment, with all numbers being in hexadecimal values. All arithmetic and branch instructions are shown. Each arithmetic operation takes
clock cycles. All other types of operations take cycles each. A "branch is taken" means program branches to the target address:
Instruction
Code
X X
Y X
BRZ
PROC CEAQU
SUB
MOV Ymove to Y
SUB
Branch if
Instruction
Address
MOV X Y
A
INC X increment
ENDP
E
When the branch instruction is executed and the "branch is taken", the new PC counter value will be
A O
O
A
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