ST20C2 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST20C2

Instruction Set Reference Manual

STMicroelectronics 

testerr

testerr

test error flag

Code: 22 F9

Description: Test the error flag at the current pr iority, returning false in Areg if error is

set, true otherwise. It also clears the error flag.

Definition:

if (ErrorFlag[Priority] = set)

Areg′ ← false

else

Areg′ ← true

ErrorFlag′[Priority] ← clear

Error signals: none

Comments:

Secondary instruction.

See also: seterr stoperr

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