AMX 86 ajevsig ajevsig

AMX 86 Procedures

DAK

229

ajevsig ajevsig

Purpose Signal Event(s) in an Event Group

Used by n Task n IS P n Timer Procedure n Restart Procedure n Exit Procedure

Setup AMXID group;

unsigned int mask;

unsigned int value;

int status;

status = ajevsig(group, mask, value);

AX see note

Where group is the group id of an event group acquired with a call to ajevcre.

mask is a 16-bit mask identifying the event flags of interest in the group.

value is a 16-bit value which specifies the desired states for each of the

event flags selected by the mask. The states of flags not specified by

the mask can be either set or clear.

Results Interrupts are disabled and then restored to their state at the time of the

call.

Task switching is disabled and then restored to its state at the time of the

call.

Status is returned.

AEROK = Call successful

AERNME = Cannot signal the event(s)

Probably implies that no AMX message envelopes are

available for use.

AERNSG = Invalid event group id

An immediate task switch will occur if a task which was waiting for the

new event state is of higher priority than the current task.

Note Assembly language call is:

PUSH value

PUSH mask

PUSH group

CALL AAEVSIG

ADD SP,6