SH7785 datasheet(87/1692 Pages) RENESAS

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3. Instruction Set

Rev.1.00 Jan. 10, 2008 Page 57 of 1658

REJ09B0261-0100

Instruction

Operation

Instruction Code

Privileged T Bit

New

MULU.W

Rm,Rn

Unsigned,

× Rm → MACL

× 16 → 32 bits

0010nnnnmmmm1110

—

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

—

Underflow

—

Table 3.6

Logic Operation Instructions

Instruction

Operation

Instruction Code

Privileged T Bit

New

AND

Rm,Rn

Rn & Rm

→ Rn

0010nnnnmmmm1001

—

AND

#imm,R0

R0 & imm

→ R0

11001001iiiiiiii

—

AND.B #imm, @(R0,GBR)

(R0 + GBR) & imm

→ (R0 + GBR)

11001101iiiiiiii

—

NOT

Rm,Rn

~Rm

→ Rn

0110nnnnmmmm0111

—

Rm,Rn

Rn | Rm

→ Rn

0010nnnnmmmm1011

—

#imm,R0

R0 | imm

→ R0

11001011iiiiiiii

—

OR.B

#imm, @(R0,GBR)

(R0 + GBR) | imm

→ (R0 + GBR)

11001111iiiiiiii

—

TAS.B @Rn

When (Rn) = 0, 1

→ T

Otherwise, 0

→ T

In both cases,

→ MSB of (Rn)

0100nnnn00011011

—

Test

result

—

TST

Rm,Rn

Rn & Rm;

when result = 0, 1

→ T

Otherwise, 0

→ T

0010nnnnmmmm1000

—

Test

result

—

TST

#imm,R0

R0 & imm;

when result = 0, 1

→ T

Otherwise, 0

→ T

11001000iiiiiiii

—

Test

result

—

TST.B

#imm, @(R0,GBR)

(R0 + GBR) & imm;

when result = 0, 1

→ T

Otherwise, 0

→ T

11001100iiiiiiii

—

Test

result

—

XOR

Rm,Rn

∧ Rm → Rn

0010nnnnmmmm1010

—

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