PM0044 datasheet(12/162 Pages) STMICROELECTRONICS

12 / 162 page

Glossary

PM0044

12/162

Doc ID 13590 Rev 3

Glossary

mnem

mnemonic

src

source

dst

destination

duration of the instruction in CPU clock cycles (internal clock)

lgth

length of the instruction in byte(s)

op-code

instruction byte(s) implementation (1..4 bytes), operation code.

mem

memory location

imm

immediate value

off

offset

ptr

pointer

pos

position

byte

a byte

word

16-bit value

short

represent a short 8-bit addressing mode

long

represent a long 16-bit addressing mode

Effective Address: The final computed data byte address

Page Zero

all data located at [00..FF] addressing space (single byte address)

(XX)

content of a memory location XX

a byte value

ExtB

Extended byte

Most Significant byte of a 16-bit value (MSB)

Least Significant byte of a 16-bit value (LSB)

Accumulator register

16-bit X Index register

16-bit Y Index register

reg

A, XL or YL register (1-byte LS part of X/Y), XH or YH (1-byte MS part of X/Y)

ndx

index register, either X or Y

24-bit Program Counter register

16-bit Stack Pointer

Stack Pointer LSB

Condition Code register

PM0044 数据表(PDF) 12 Page - STMicroelectronics

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