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vkrishna2001

Hi,
I am analyzing variable storage dump. I want to find the value of a data item with picture clause S9(13)V9(02) COMP.

If the value of data item is +0000000000617.70 then the hexadecimal value is 000000000000F14A. I can give this hexadecimal value directly to scientific calculator and get decimal value as 61770. But if the value is
-0000000000617.70 then the hexadecimal value is FFFFFFFFFFFF0EB6. From this hexadecimal value how to arrive at -61770? Also how can we decide whether the sign is positive or negative?

Thanks,
Vijayakrishna

kolusu · Posted: Tue Dec 02, 2003 1:30 pm Post subject:

Krishna,

You can use REXX's funtion X2D which will convert the hexadecimal string to a decimal string

vkrishna2001 · Posted: Wed Dec 03, 2003 11:09 am Post subject:

Kolusu,

Thanks a lot for the help.

Vijayakrishna

slade · Posted: Thu Dec 04, 2003 5:57 pm Post subject:

Hi Vijay,

Here's another way to convert minus hex values to positive values:

Subtract each hex digit of the minus number from 15 and record the answer. Add 1 to the last digit. It's really a mental arithmetic problem. For example:

FFFFFFFFFFFF0EB6 converts to leading zeros, F149 + 1 = F14A