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Computer system architecture
BY: DRISHTI BHALLA
BTECH CSE
1838
BUN INSTRUCTION
1. Direct
2. Indirect
• BUN
• Opcode =8
PC <- AR
• BUN_I
• Opcode =9
AR <- Main[AR]
PC <- AR
BEFORE
EXECUTION…
DIRECT :
AC=A937
PC=022
Main[AR]=082
AFTER EXECUTION…
BEFORE EXECUTION…
INDIRECT :
AC=A937
PC=022
Main[AR]=298
Main[298]=B8F2
AFTER EXECUTION…
THANK YOU !!!!

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Computer System Architecture - BUN instruction