SH7149 datasheet(84/1022 Pages) RENESAS

84 / 1022 page

Section 2 CPU

Rev. 3.00 May 17, 2007 Page 40 of 974

REJ09B0229-0300

Instruction

Operation

Code

Execution

Cycles

T Bit

DMULU.L Rm,Rn

Unsigned operation of

× Rm → MACH,

MACL 32

× 32 → 64 bits

0011nnnnmmmm0101

2 to 5*



Rn - 1

→ Rn, if Rn = 0, 1 →

T, else 0

→ T

0100nnnn00010000

Comparison

result

EXTS.B

Rm,Rn

A byte in Rm is sign-

extended

→ Rn

0110nnnnmmmm1110



EXTS.W

Rm,Rn

A word in Rm is sign-

extended

→ Rn

0110nnnnmmmm1111



EXTU.B

Rm,Rn

A byte in Rm is zero-

extended

→ Rn

0110nnnnmmmm1100



EXTU.W

Rm,Rn

A word in Rm is zero-

extended

→ Rn

0110nnnnmmmm1101



MAC.L

@Rm+,@Rn+

Signed operation of (Rn)

× (Rm) + MAC → MAC,

× 32 + 64 → 64 bits

0000nnnnmmmm1111

2 to 5*



MAC.W

@Rm+,@Rn+

Signed operation of (Rn)

× (Rm) + MAC → MAC,

× 16 + 64 → 64 bits

0100nnnnmmmm1111

2 to 4*



MUL.L

Rm,Rn

× Rm → MACL

× 32 → 32 bits

0000nnnnmmmm0111

2 to 5*



MULS.W

Rm,Rn

Signed operation of Rn

× Rm → MAC

× 16 → 32 bits

0010nnnnmmmm1111

1 to 3*



MULU.W

Rm,Rn

Unsigned operation of

× Rm → MAC

× 16 → 32 bits

0010nnnnmmmm1110

1 to 3*



NEG

Rm,Rn

0-Rm

→ Rn

0110nnnnmmmm1011



NEGC

Rm,Rn

0-Rm-T

→ Rn,

Borrow

→ T

0110nnnnmmmm1010

Borrow

SUB

Rm,Rn

Rn-Rm

→ Rn

0011nnnnmmmm1000



SUBC

Rm,Rn

Rn-Rm–T

→ Rn,

Borrow

→ T

0011nnnnmmmm1010

Borrow

SUBV

Rm,Rn

Rn-Rm

→ Rn,

Underflow

→ T

0011nnnnmmmm1011

Overflow

Note:

Indicates the number of execution cycles for normal operation.

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