SPL — Skip On Power Low
SPL| L |
|---|
| . |
0000 /STORAGE FOR PC AFTER PROGRAM INTERRUPT
0001 JMP FLAGS /INSTRUCTION EXECUTED AFTER PROGRAM INTERRUPT
FLAGS, SPL /SKIP IF POWER LOF FLAG = 1
JMP OTHER /INTERRUPT NOT CAUSED BY POWER LOW, CHECK OTHER FLAGS
DCA AC /INTERRUPT WAS CAUSED BY POWER LOW, SAVE AC
RAR /GET LINK
DCA LINK /SAVE LINK
MQA /GET MQ
DCA MQ /SAVE MQ
TAD 0000 /GET PC
DCA PC /SAVE PC
TAD RESTART /GET RESTART INSTRUCTION
DCA 0000 /DEPOSIT RESTART INSTRUCTION IN 0000
HLT
RESTART, JMP ABCD /ABCD IS LOCATION OF RESTART ROUTINE0000 JMP ABCD
ABCD, TAD MQ /GET MQ
MQL /RESTORE MQ
TAD LINK /GET LINK
CLL RAL /RESTORE LINK
TAD AC /RESTORE AC
ION /TURN ON INTERRUPT
JMP I PC /RETURN TO INTERRUPTED PROGRAM