SH7014 datasheet(74/754 Pages) RENESAS

74 / 754 page

2. CPU

Rev.5.00 Sep. 27, 2007 Page 40 of 716

REJ09B0398-0500

Instruction

Instruction Code

Operation

Exec.

Cycles

T Bit

DMULS.L Rm,Rn

0011nnnnmmmm1101

Signed operation of

× Rm → MACH,

MACL 32

× 32 → 64 bit

2 to 4*

⎯

DMULU.L Rm,Rn

0011nnnnmmmm0101

Unsigned operation of

× Rm → MACH,

MACL 32

× 32 → 64 bit

2 to 4*

⎯

0100nnnn00010000

− 1 → Rn, when

Rn is 0, 1

→ T. When

Rn is nonzero, 0

→ T

Comparison

result

EXTS.B

Rm,Rn

0110nnnnmmmm1110

A byte in Rm is sign-

extended

→ Rn

⎯

EXTS.W

Rm,Rn

0110nnnnmmmm1111

A word in Rm is sign-

extended

→ Rn

⎯

EXTU.B

Rm,Rn

0110nnnnmmmm1100

A byte in Rm is zero-

extended

→ Rn

⎯

EXTU.W

Rm,Rn

0110nnnnmmmm1101

A word in Rm is zero-

extended

→ Rn

⎯

MAC.L

@Rm+,@Rn+

0000nnnnmmmm1111

Signed operation of

(Rn)

× (Rm) + MAC →

MAC 32

× 32 → 64 bit

(2 to 4)*

⎯

MAC.W

@Rm+,@Rn+

0100nnnnmmmm1111

Signed operation of

(Rn)

× (Rm) + MAC →

MAC 16

× 16 + 64 →

64 bit

3/(2)*

⎯

MUL.L

Rm,Rn

0000nnnnmmmm0111

× Rm → MACL,

× 32 → 32 bit

2 to 4*

⎯

MULS.W

Rm,Rn

0010nnnnmmmm1111

Signed operation of

× Rm → MAC

× 16 → 32 bit

1 to 3*

⎯

MULU.W

Rm,Rn

0010nnnnmmmm1110

Unsigned operation of

× Rm → MAC

× 16 → 32 bit

1 to 3*

⎯

NEG

Rm,Rn

0110nnnnmmmm1011

− Rm → Rn

⎯

NEGC

Rm,Rn

0110nnnnmmmm1010

− Rm − T → Rn,

Borrow

→ T

Borrow

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