original passage: MIPS has 32 floating-point registers. Two registers are paired for double precision numbers. Odd numbered registers cannot be used for arithmetic or branching, just as part of a double precision register pair, resulting in 16 usable registers for most instructions (moves/copies and loads/stores were not affected).
original sentence: Odd numbered registers cannot be used for arithmetic or branching, just as part of a double precision register pair, resulting in 16 usable registers for most instructions (moves/copies and loads/stores were not affected).
sentence2: If arithmetic is successfully performed on a register, can it be an odd numbered register?
sentence1: MIPS has 32 floating-point registers. Two registers are paired for double precision numbers. Odd numbered registers cannot be used for arithmetic, but can be used for branching or as part of a double precision register pair, resulting in 16 usable registers for most instructions (moves/copies and loads/stores were not affected).