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PDP-10 Archives
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bb-bt99h-bb
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cbl12c.d14
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EDIT DESCRIPTIONS FOR COBOL-10-V12C
EDIT 1624 FOR COBOL
[SYMPTOM]
A COMPUTE that requires a coversion from a COMP-1 item to do
math with COMP-2 will lose precision in the conversion.
I.E.:
COMPUTE ITEM3 = ITEM1 - ITEM2.
COMPUTE ITEM4 = ITEM3 / 100.
Will not yield the same results as:
COMPUTE ITEM4 = (ITEM1 - ITEM2) / 100.
If all the variables are pic 9(8) or greater and ITEM4 is
9(8)v99.
[DIAGNOSIS]
CCXF2.: in MOVGEN will gernerate a conversion of a 1 word
integer into a one word floating. A one word integer can
have upto 11 significant digits but a 1 word floating point
number will only represent 8.
[CURE]
Change CCXF2.: to generate a conversion to a 1 word
floating point number only if the size of the source item is
less than 8 digits.
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END OF COBOL-10-V12C