MB89151PFM データシートの表示（PDF） - Fujitsu

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MB89151PFM

8-bit Proprietary Microcontroller

Fujitsu 

MB89150/150A Series

s INSTRUCTIONS

Execution instructions can be divided into the following four groups:

• Transfer

• Arithmetic operation

• Branch

• Others

Table 1 lists symbols used for notation of instructions.

Table 1 Instruction Symbols

Symbol

dir

off

ext

#vct

#d8

#d16

dir: b

rel

@

A

AH

AL

T

TH

TL

IX

Meaning

Direct address (8 bits)

Offset (8 bits)

Extended address (16 bits)

Vector table number (3 bits)

Immediate data (8 bits)

Immediate data (16 bits)

Bit direct address (8:3 bits)

Branch relative address (8 bits)

Register indirect (Example: @A, @IX, @EP)

Accumulator A (Whether its length is 8 or 16 bits is determined by the instruction in use.)

Upper 8 bits of accumulator A (8 bits)

Lower 8 bits of accumulator A (8 bits)

Temporary accumulator T (Whether its length is 8 or 16 bits is determined by the

instruction in use.)

Upper 8 bits of temporary accumulator T (8 bits)

Lower 8 bits of temporary accumulator T (8 bits)

Index register IX (16 bits)

(Continued)

41

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