AMX 68000, Target Guide cjcfdi cjcfdi cjcfei cjcfei

B-6

DAK

AMX 68000 Target Guide

cjcfdi cjcfdicjcfei cjcfei

Purpose Disable or Enable Interrupts

Used by n Task n ISP n Timer Procedure n Restart Procedure n Exit Procedure

(cjcfdi only)

Setup Prototype in file

CJZZZTF.H or macro in file

CJZZZCC.H.

#include "CJZZZ.H"

void CJ_CCPP cjcfdi(void);

void CJ_CCPP cjcfei(void);

Description Tasks can use cjcfdi to briefly disable all sources of interrupt.

Immediately thereafter the task can use cjcfei to enable all sources of

interrupt again.

Interrupts n Disabled by cjcfdi n Enabled by cjcfei

Returns Nothing

The interrupt priority in the status register (SR) is set to 6 to disable

interrupts or reset to 0 to enable interrupts.

Restrictions ISPs must not use cjcfei. If nested interrupts are supported in your

application, ISPs must always use cjcfflagwr to restore interrupts to the

state determined by an earlier call to cjcfflagrd.

Interrupts should be enabled within a short time after they are disabled or

system performance will be degraded.