HD404374FT datasheet(127/161 Pages) RENESAS

127 / 161 page

HD404374/HD404384/HD404389/HD404082/HD404084 Series

Rev.5.00, Sep.11.2003, page 127 of 161

Instruction Set

The MCU Series has 101 instructions, classified into the following 10 groups:

• Immediate instructions

• Register-to-register instructions

• RAM addressing instructions

• RAM register instructions

• Arithmetic instructions

• Compare instructions

• RAM bit manipulation instructions

• ROM addressing instructions

• Input/output instructions

• Control instructions

The functions of these instructions are listed in tables 30 to 39, and an opcode map is shown in table 40.

Table 30

Immediate Instructions

Operation

Mnemonic

Operation Code

Function

Status

Words/

Cycles

Load A from immediate

LAI i

1 0

0 0

1 1 i

→ A

1/1

Load B from immediate

LBI i

1 0

0 0

0 0 i

→ B

1/1

Load memory from

immediate

LMID i,d

0 1

1 0

1 0 i

→ M

2/2

Load memory from

immediate, increment Y

LMIIY i

1 0

0 1 i

→ M, Y + 1 → Y NZ

1/1

Table 31

Operation

Mnemonic

Operation Code

Function

Status

Words/

Cycles

Load A from B

LAB

0 0

0 1

0 0 1

0 0

→ A

1/1

Load B from A

LBA

0 0

1 1

0 0 1

0 0

→ B

1/1

Load A from W

LAW

0 1

0 0

0 0 0

0 0

0 0 0

0 0

→ A

2/2*

Load A from Y

LAY

0 0

1 0

1 0 1

1 1

→ A

1/1

Load A from SPX

LASPX

0 0

0 1

1 0 1

0 0

SPX

→ A

1/1

Load A from SPY

LASPY

0 0

0 1

0 1 1

0 0

SPY

→ A

1/1

Load A from MR

LAMR m

1 0

0 1

1 1 m

3 m2 m1 m0

MR (m)

→ A

1/1

Exchange MR and A

XMRA m

1 0

1 1

1 1 m

3 m2 m1 m0

MR (m)

↔ A

1/1

Note: * The assembler automatically provides an operand for the second word of the LAW instruction.

HD404374FT Datasheet(PDF) 127 Page - Renesas Technology Corp

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