10
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[notebook page] 6
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CORE PARITY ERROR, LOCATION INDETERMINATE
PC = 340000004506 INSTR = 402000001134
DATE = 000641046230 TIME = 1020:35 M. H. H.[handwritten]
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9 JAN 68 - - 0700
CHASED 533 BUG (SEE PREVIOUS PAGE)
FOR MANY HOURS. OCCURS ONLY IN CORE
3 LOC'S WITH X-SELECT 120-137 (121, 122, 131, 132)
REPLACED OR SWAPPED ALL CONCEIVABLE
RELEVANT MODULES (EVEN CMA BITS).
NO CHANGE.
MYSTERY !
LOOK!
A STRAW! [arrow point to:] THEORY: MAYBE DRIVE CURRENTS ARE
JUST OUT OF TUNE. TRY THOROUGH TWEAKING.
D.W.P & P[super]2
Jan 9, 1968 10:30
Trouble with DTA7 & DTA4 -SEE BELOW,
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. CORE 24
.R LISPXY 24
?TRANSMISSION ERROR
[up arrow]C
.R LISPXY 24
?TRANSMISSION ERROR
[up arrow]C
. RUN DTA7 LISPXY 24
ALLOC?
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