SH7041A datasheet(104/923 Pages) RENESAS

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Table 2.13

Arithmetic Operation Instructions (cont)

Instruction

Instruction Code

Operation

Execu-

tion

Cycles

T Bit

DMULS.L Rm,Rn

0011nnnnmmmm1101

Signed operation of Rn

× Rm → MACH, MACL

× 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

Rn – 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

1—

EXTS.W

Rm,Rn

0110nnnnmmmm1111

A word in Rm is sign-

extended

→ Rn

1—

EXTU.B

Rm,Rn

0110nnnnmmmm1100

A byte in Rm is zero-

extended

→ Rn

1—

EXTU.W

Rm,Rn

0110nnnnmmmm1101

A word in Rm is zero-

extended

→ Rn

1—

MAC.L

@Rm+,@Rn+

0000nnnnmmmm1111

Signed operation of

(Rn)

× (Rm) +MAC →

MAC 32

× 32 → 64 bit

3/(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 → 32 bit

2 to 4*

—

MULS.W

Rm,Rn

0010nnnnmmmm1111

Signed operation of Rn

× Rm → MAC 16 × 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

0–Rm

→ Rn

—

NEGC

Rm,Rn

0110nnnnmmmm1010

0–Rm–T

→ Rn, Borrow

→ T

Borrow

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