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What is the largest value that can be used in the addi instruction as the immediate?

User Zcorpan
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Final answer:

The largest immediate value that can be used in the ADDI instruction is 65535 for unsigned values and 32767 for signed values, specific to a 32-bit system like MIPS. This is because of the 16-bit size of the immediate field in the instruction format.

Step-by-step explanation:

Largest Immediate Value in the ADDI Instruction

The ADDI instruction is used in assembly language programming to add an immediate value to a register. The largest value that can be used as the immediate in the ADDI instruction depends on the architecture of the CPU.

In a 32-bit system, like the MIPS architecture, the immediate field is typically 16 bits, which allows for an immediate value ranging from -32768 to 32767. Therefore, the largest unsigned value is 65535 (in hexadecimal notation: 0xFFFF), and the largest signed value is 32767.

Since the immediate value is an operand that is a part of the instruction itself, it is limited by the number of bits allocated for immediate values in the instruction format. To work with larger numbers, one would have to use multiple instructions or use an instruction that operates with register values instead of immediate values.

User Yun Luo
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