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Zilog Z80380 User Manual

Page 109

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UM004001-COR1103

Glossary-7

Glossary

Public/Global Symbol

A programming variable that is available to more than

one program file.

PUSH

Store a Value In the Stack.

r

Working Register Address.

R

Register or Working-Register Address, Rising Edge.

RA

Relative Address.

RAM

Random-Access Memory. A memory that can be

written to or read at random. The device is usually

volatile, which means the data is lost without power.

RC

Resistance/Capacitance.

RD

Read.

RES

Reset.

ROM

Read-Only Memory. Nonvolatile memory that stores

permanent programs. ROM usually consists of

solid-state chips.

ROMCS

ROM Chip Select.

RP

Register Pointer.

RR

Read Register or Rotate Right.

SCF

Set C Flag.

SIO

Serial Input/Output.

SL

Shift Left or Special Lot.

SLL

Shift Left Logical.