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Course Queries Competitions/Entrance Exams 2 years ago
Posted on 16 Aug 2022, this text provides information on Competitions/Entrance Exams related to Course Queries. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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I found this exam question that I have to tell how the beq instruction is coded in machine code.
beq
This is the code:
loop: addu $8, $9, $10 addiu $8, $8, 0x00FF7A01 beq $8, $0, loop
Although my first question would be 0x1100FFFD the correct answer is 0x1100FFFB. I believe that this is because 0x00FF7A01 is bigger than 16 bit and addiu $8, $8, 0x00FF7A01 must be "decompiled" in more than one instruction.
0x1100FFFD
0x1100FFFB
0x00FF7A01
addiu $8, $8, 0x00FF7A01
So here are my questions.
Q1 - In what is addiu $8, $8, 0x00FF7A01 decomplided?
Q2 - And what if the immediate field on the beq instruction was bigger than 16 bits? Must I have to use jumps?
jumps
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