Figure 4-3. General Exception Processing Flowchart - Motorola MC68306 User Manual

Figure 4-3. General Exception Processing Flowchart

MOTOROLA
ENTRY
SAVE INTERNAL
COPY OF SR
S 1
T 0
(SEE NOTE)
FETCH VECTOR
NUMBER
OTHERWISE
BUS ERROR
SAVE CONTENTS
TO STACK FRAME
(SEE NOTE)
OTHERWISE
BUS ERROR
EXECUTE EXCEPTION
HANDLER
BUS ERROR OR
ADDRESS ERROR
OTHERWISE
BEGIN INSTRUCTION
EXECUTION
EXIT
NOTE: These blocks vary for reset and interrupt exceptions.
MC68306 USER'S MANUAL
(DOUBLE BUS FAULT)
(DOUBLE BUS FAULT)
(DOUBLE BUS FAULT)
EXIT
EC28
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