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Control Path. Catholic University PUCRS. MIPS I instruction formats. Instructions are divided into three types: R , I and J .

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Catholic university pucrs

Control Path

Catholic University

PUCRS


Mips i instruction formats

MIPS I instruction formats

  • Instructions are divided into three types: R, I and J.

  • Every instruction starts with a 6-bit opcode. In addition to the opcode, R-type instructions specify three registers, a shift amount field, and a function field;

  • I-type instructions specify two registers and a 16-bit immediate value;

  • J-type instructions follow the opcode with a 26-bit jump target.

vargas@computer.org, vargas@pucrs.br


Mips i instruction formats1

MIPS I instruction formats

  • The following are the three formats used for the core instruction set:

vargas@computer.org, vargas@pucrs.br


Catholic university pucrs

MIPS I instruction formats

vargas@computer.org, vargas@pucrs.br


Catholic university pucrs

Control Path for R-Type

vargas@computer.org, vargas@pucrs.br


Catholic university pucrs

Control Path for I-Type(Branch Equal Inst)

vargas@computer.org, vargas@pucrs.br


Catholic university pucrs

Control Path for I-Type(Load Inst)

vargas@computer.org, vargas@pucrs.br


Catholic university pucrs

Control Path for J-Type(Jump Inst)

vargas@computer.org, vargas@pucrs.br


Catholic university pucrs

General Control Flow Graph

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