Reading hex

[Daniel Collins]

one hint from another newby is to use hexworkshop and to shrink the size of
the hex number area down so that it looks like

000000 1480
000002 0365
000006 5B8F
000008 5D10                  therefore $0008 is 5D and $0009 is 10

ETC ETC
this allows you to easily find location $01B3 or $01B2  etc until you are
used to hex numbers , looking down the list you will see the numbers
increasing by 2 and after awhile you learn the location of the A's B's F's
etc ,bit like releaning to count . but this time school is more enjoyable
cause you want to learn instead of it being shoved down your throat - woops
starting to rant on again !!

Hex workshop also has a handy base calculator thats more user friendly than
microsofts windows one !

Daniel


-----Original Message-----
From: Shannen Durphey <shannen at grolen.com>
To: gmecm at diy-efi.org <gmecm at diy-efi.org>
Date: Monday, September 25, 2000 6:14 PM
Subject: Re: Reading hex


>Ok, you might have a series of increasing numbers like this.  I'm
>going to copy a couple of lines from AKAR1180.bin.  I'm using a fixed
>width font, 10 pt, wrapping lines at 70 chars.  If you use a variable
>width font, there's no guarantee that things will line up.
>
>
>         0  1  2  3  4  5  6  7     8  9  A  B  C  D  E  F
>0000
>
>
>0190    06 07 08 09 0D 10 11 11    11 11 14 18 1C 20 20 C0
>01A0    00 00 00 03 07 09 09 0C    0B 09 0A 0A 09 04 FF EC
>01B0    35 14 12 01 00 00 05 08    30 38 FF 10 E6 33 FE 80
>
>The value at 0x1B3 is 0x01.  0x1B3 be written as $01B3.  Most editors
>show something like this table.  Some don't have the numbers across
>the top, most have a feature that displays your actual position.  You
>might want to try using hex workshop, or winhex, or another editor
>that someone here is using just until you get up to speed.
>
>How is 1B3= 435?  2 answers, one easy, one not as easy.  1)  Because
>the hex conversion feature of the windows calculator program says so.
>: )  2)  You need to think about #'s for a minute.  Base 10 that we
>usually use counts ten digits, 0,1,2...8,9 then marks a "restart" by
>increasing the value in the column to the left, and starts again.
>...6,7,8,9, 10,11,12.  The #10 is 1 * 10 + 0 * 1.
>
> Hex is hexidecimal, base 16.  It counts 16 digits, marks the
>"restart", then starts again.
>0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,10,11,12.  What looks like ten, 10, is
>1 * 16 + 0 * 1 decimal. We have no single digit numbers to represent
>anything after 9, so we use A,B,C,D,E,F.  Hex 11 is 17 decimal (1 * 16
>plus 1 * 1) decimal.  0x12 is 18 (1 * 16 + 2 * 1) decimal.  If you
>move up to something like 0x3a, you get 3 * 16 + 10 * 1 decimal= 58
>dec.   Hex value A = 10 in decimal.
>
>
>0xFF is 255dec (15*16 + 15*1), then the count restarts again.  0x100
>is 256, it's 1*16*16 + 0*16 + 0*1.  0x01B3 is 0*16*16*16 + 1*16*16 +
>11*16 + 3*1, or 256 + 176 +3.  Lotsa "primers" or "tutorials" on
>hexadecimal are available on the net.
>
>You might be able to select scientific view on your windows calculator
>to do hex conversions.  Look in start, programs, accessories for
>calculator.  Then select view, scientific after it's running.  Contact
>me offlist if you don't think yours will show scientific view.  You
>don't have to have a deep fundamental understanding of hexadecimal to
>do tuning.  It helps, though.  The more you use it, the more you'll
>get a "feel" for the conversions.
>
>Shannen
>
>Kevin R wrote:
>>
>> I'm using the edit capabilities of the software that came with the used
>> Xeltec burner I have.
>> It looks like a table with X and Y addresses or am I reading it wrong.
>> 0 1 2 3 4
>> A
>> B
>> C
>> Also, all the entry points seem to be a 2 number entry.
>> I guess what's giving me the problems is I don't know how to the 1B3=435
>> part.
>>
>> Kevin R
>>
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