4 guarded access break, Guarded access break – FUJITSU CM71-00329-7E User Manual

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CHAPTER2 Dependence Functions

2.1.8.4

Guarded Access Break

A guarded access break suspends a executing program when accessing in violation of
the access attribute set by using the [Setup]-[Memory Map] command, and accessing a
guarded area (access-disabled area in undefined area).

Guarded Access Breaks

A guarded access break suspends a executing program when accessing in violation of the access attribute

set by using the [Setup]-[Memory Map] command, and accessing a guarded area (access-disabled area in

undefined area).

Guarded access breaks are as follows:

Code Guarded
An instruction has been executed for an area having no code attribute.

Read Guarded
A read has been attempted from the area having no read attribute.

Write Guarded
A write has been attempted to an area having no write attribute.

If a guarded access occurs while executing a program, the following message is displayed on the Status Bar

and the program execution suspended.

Break at Address by guarded access {code/read/write} at Access Address

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