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Mflo, Move from lo – NEC Network Controller uPD98502 User Manual

Page 529

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APPENDIX A MIPS III INSTRUCTION SET DETAILS

Preliminary User’s Manual S15543EJ1V0UM

529

MFLO

Move From LO

MFLO

0

0 0 0 0 0 0 0 0 0 0

SPECIAL

0 0 0 0 0 0

31

26 25

11 10

16 15

0

6

10

5

6

rd

0

0 0 0 0 0

MFLO

0 1 0 0 1 0

5

6 5

Format:

MFLO rd

Description:

The contents of special register

LO are loaded into general register rd.

To ensure proper operation in the event of interruptions, the two instructions which follow a MFLO instruction may

not be any of the instructions which modify the

LO register: MULT, MULTU, DIV, DIVU, MTLO, DMULT, DMULTU,

DDIV, DDIVU.

Operation:

32, 64 T:

GPR [rd]

← LO

Exceptions:

None