In the MIPS assembly language, which of the following is a valid register name?$t0$s1$a2$x4$v0Group of answer choicesII, III, IVIV, VI, II and IIII, IV, V
Question
In the MIPS assembly language, which of the following is a valid register name?s1x4$v0Group of answer choicesII, III, IVIV, VI, II and IIII, IV, V
Solution
In the MIPS assembly language, the valid register names are s1, v0. Therefore, the correct answer is II, III, and V.
Here's why:
I. $t0: This is a valid register name. It is one of the ten temporary registers that the MIPS assembly language provides for general use.
II. $s1: This is a valid register name. It is one of the nine saved registers that the MIPS assembly language provides for general use.
III. $a2: This is a valid register name. It is one of the four argument registers that the MIPS assembly language provides for passing arguments to functions.
IV. $x4: This is not a valid register name. The MIPS assembly language does not provide any register with this name.
V. $v0: This is a valid register name. It is one of the two value registers that the MIPS assembly language provides for function return values.
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