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Old Sep 4, 2003, 11:12 AM   #1
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Join Date: Aug 2003
Posts: 16
Default 707: Changing Photo Format selection

From what I get from the 707
dump, also in this case is possible
to change the 5 predefined photo formats
acting on five addresses on page 0d.

In this case the target
locations are
22,23,24,25,26
default values
01 04 08 8A 0A

This means the 707 uses
640x480
1280x960
2048x1536
2560 (3:2)
2560x1920

And You can pick up other stuff
following the table below...

REMEMBER TO COMPENSATE THE XOR
CHECKSUM USING a DUMMY BYTE
(3E or 3F are probably candidates)

FORMULA:
CA-New = (TA-Old XOR TA-New) XOR CA-Old

TA-Old = Target Address Old Value
TA-New = Target Address New Value
CA-Old = CheckSum Address Old value
CA-New = Chechsum Address New value


FORMAT TABLE

Hex Binary Format Type
-------------------------------
(00)--00000000--> NOT USED
(01)--00000001--> 640x480
(02)--00000010--> 1024x768
(03)--00000011--> 1216x912
(04)--00000100--> 1280x960
(05)--00000101--> 1472x1104
(06)--00000110--> 1600x1200
(07)--00000111--> 1920x1440
(08)--00001000--> 2048x1536
(09)--00001001--> 2304x1728
(0A)--00001010--> 2560x1920
(0B)--00001011--> 1856x1392
(0C)--00001100--> 2240x1680

(80)--10000000--> NOT USED
(81)--10000001--> 640 (3:2)
(82)--10000010--> 1024 (3:2)
(83)--10000011--> 1216 (3:2)
(84)--10000100--> 1280 (3:2)
(85)--10000101--> 1472 (3:2)
(86)--10000110--> 1600 (3:2)
(87)--10000111--> 1920 (3:2)
(88)--10001000--> 2048 (3:2)
(89)--10001001--> 2304 (3:2)
(8A)--10001010--> 2560 (3:2)
(8B)--10001011--> 1856 (3:2)
(8C)--10001100--> 2240 (3:2)

KK
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