Code Types

Explanation of what a code type is, and what they're used for here..

Playstation Systems

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Playstation

Gameshark & Action Replay

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Note: For all intents and purposes, PlayStation Action Replay code types are identical to the GameShark ones. Only the device version numbers vary.

Type	Description	Example	Other	Limitations
30	8-bit Constant Write 3XXXXXXX 00YY	Writes YY to Address XXXXXXX	--	none
80	16-bit Constant Write 8XXXXXXX ZZYY	Writes ZZYY to Address XXXXXXX	--	none
50	Serial Repeater 5000XXYY ZZZZ	TTTTTTTT VVVV Writes XX codes, with YY added to the address for each code after TTTTTTTT, and ZZZZ added to the amount for each code after value VVVV	Gameshark 2.2 and higher. May need to seperate pairs of serial codes with a 00000000 0000 code for disk-based gamesharks	unknown
E0	8-bit Equal-To Trigger E0XXXXXX 00YY	Activates next code if address 80XXXXXX is equal to YY	Gameshark 2.2 and higher.	60~, including all Cx and comparison types
E1	8-bit different-from trigger E1XXXXXX 00YY	Activates next code if address 80XXXXXX is different from YY	Gameshark 2.2(?) and higher.	60~, including all Cx and comparison types
E2	8-bit Less-Than Trigger E2XXXXXX 00YY	Activates next code if address 80XXXXXX is less than YY	Gameshark 2.2 and higher.	60~, including all Cx and comparison types
E3	8-bit Greater-Than Trigger E3XXXXXX 00YY	Activates next code if address 80XXXXXX is greater than YY	Gameshark 2.2 and higher.	60~, including all Cx and comparison types
D0	16-bit Equal-To Trigger D0XXXXXX YYYY	Activates next code if address 80XXXXXX is equal to YYYY	--	60~, including all Cx and comparison types
D1	16-bit Different-From Trigger D1XXXXXX YYYY	Activates next code if address 80XXXXXX is different from YYYY	Gameshark 2.2 and higher.	60~, including all Cx and comparison types
D2	16-bit Less-Than Trigger D2XXXXXX YYYY	Activates next code if address 80XXXXXX is less than YYYY	Gameshark 2.2 and higher.	60~, including all Cx and comparison types
D3	16-bit Greater-Than Trigger D3XXXXXX YYYY	Activates next code if address 80XXXXXX is greater than YYYY	Gameshark 2.2 and higher.	60~, including all Cx and comparison types
D4	16-bit Universal Joker D4000000 YYYY	Activates next code if the button presses equate to YYYY	Gameshark 2.41 and higher. Needs a button chart	60~, including all Cx and comparison types
D5	16-bit Codes-on Trigger D5000000 YYYY	Activates all codes if buton presses equate to YYYY	Gameshark 2.41 and higher. Needs a button chart	60~, including all Cx and comparison types
D6	16-bit Codes-off Trigger D6000000 YYYY	Activates all codes if buton presses equate to YYYY	Gameshark 2.41 and higher. Needs a button chart	60~, including all Cx and comparison types
10	16-bit Incrementer 10XXXXXX YYYY	Increments value at address 80XXXXXX by YYYY	Gameshark 2.2 and higher. Use with a joker	30~ including all in/decrement types
11	16-bit Decrementer 11XXXXXX YYYY	Decrements value at address 80XXXXXX by YYYY	Gameshark 2.2 and higher. Use with a joker	30~ including all in/decrement types
20	8-bit Incrementer 20XXXXXX 00YY	Increments value at address 80XXXXXX by YY	Gameshark 2.2 and higher. Use with a joker	30~ including all in/decrement types
21	8-bit Decrementer 21XXXXXX 00YY	Decrements value at address 80XXXXXX by YY	Gameshark 2.2 and higher. Use with a joker	30~ including all in/decrement types
C0	Enable All Codes Trigger C0XXXXXX YYYY	If value at address 80XXXXXX is equal to YYYY, enable all loaded codes in game. Affects all codes, not just the one this line is used in.	Gameshark 2.41 or higher.	60~, including all Cx and comparison types
C1	Codes-on Delay C1000000 YYYY	Delays codes from being on by YYYY time when game starts. 4000-5000 should give 20-30 seconds.	--	60~, including all Cx and comparison types
C2	Copy Memory C2XXXXXX YYYY 80ZZZZZZ 0000	Copy YYYY bytes from 80XXXXXX to 80ZZZZZZ. Could be used for copying large sets of complex character stats from one character to another, like working-magic-only, if serial repeater won't work	--	30?
1F800???	Special 16-bit write 1F800XXX YYYY	Write YYYY to address 1F800XXX in the scratch pad region. Note that the address range is only from 0x000 to 0x3FF (1024 bytes).	GameShark 2.3 and higher.	unknown

All 16-bit comparison types are limited to roughly 60 lines per game. 8-bit comparison types and increment/decrement types are limited to around 30 lines per game combined.

Warning: Limitations info is incomplete. Expect exact limits eventually...

Xploder/Codebreaker/X-Terminator

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Note: "T" defines the default on/off setting if this code type is the first line in a code. 0 = On, 8 = Off. This does not apply to all types.

Type	Description	Example	Other
3	8-bit Constant Write 3TXXXXXX 00YY	Writes YY to address 80XXXXXXX	--
8	16-bit Constant Write 8TXXXXXX YYYY	Writes YYYY to address 80XXXXXXX	--
00	32-bit Constant Write 00XXXXXX YYYY	Writes 0000YYYY to address 80XXXXXX.	Doesn't use on/off setting.
5	Mass Write (Super code) 5TXXXXXX 0YYY	Writes YYY bytes (from following lines until end of YYY bytes) to address 80XXXXXX.	Exact behavior is unknown, may require even addresses only (unconfirmed).
7	16-bit Equal-To Trigger 7TXXXXXX YYYY	Activates next code if value at address 80XXXXXX is equal to YYYY	--
9	16-bit Not-Equal-To Trigger 9TXXXXXX YYYY	Activates next code if value at address 80XXXXXX is not equal to YYYY	--
F	16-bit Equal-To Global Trigger FTXXXXXX YYYY	??? Activates all codes if value at address 80XXXXXX is equal to YYYY	Exact behavior of this type is unconfirmed.
B	Serial Repeater (Slide code) BXXXYYYY ZZZZ 10TTTTTT VVVV	Writes XX codes, with YY added to the address for each code after TTTTTTTT, and ZZZZ added to the amount for each code after value VVVV.	This code is somewhat flawed, in that you must use an even address and other unremembered limitations for it to not crash the device. Converting GameShark serial repeater codes to this type is difficult and unreliable even when done correctly.
6	Mega code 6T?????0 YYYY AAAAAAAA CCCC FFFFFFFF 0011 22334455 6677 8899	?=Don't care AA= Break address YY= Count in bytes to insert at location 40 CC= Coprocessor break type (upper half) FF= Breakpoint mask (usually FFFFFFFF) 00= bytes of code in address order 11	General usage unknown. The document this description was originally pulled from is missing some text.
4	Slow Motion 4T000000 XXXX	According to Nachbrenner's document: "A 4 code is a slow motion code. Its success rate is not brilliant at the moment. It is simply a loop executed (XXXX << 12) times."	It's likely this causes problems if used. Exact effects are unknown.

Despite various documents claiming there is a "Datel compatibility" feature with the GS Dx and Cx codes, this has never been proven. In my own testing, in no cases did those types work. There may also be code types of 1, 2, A, and E that are completely undocumented.

Most information here is based off of Nachbrenner's Advanced Xplorer Codes document.

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Caetla

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The only known documentation of the code types for this device are as follows:

[Caetla 0.341 Features list @ Internet Archive]

["New Revolution - Code Master - 07-13-00" @ Internet Archive]

Nintendo Systems

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GameBoy Advance

Codebreaker Advance

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Type	Description	Example	Other
0	Master Code 1 0000XXXX YYYY	XXXX is the CRC value (the "Game ID" converted to hex) Flags ("YYYY"): 0008 - CRC Exists (CRC is used to autodetect the inserted game) 0002 - Disable Interupts	--
1	Master Code 2 1XXXXXXX YYYZ	'Z' is the CBA Code Handler Store Address (0-7) [address = ((d << 0x16) + 0x08000100)] YYY: 100 - 32-bit Long-Branch Type (Thumb) 200 - 32-bit Long-Branch Type (ARM) 300 - 8-bit(?) Long-Branch Type (Thumb) 400 - 8-bit(?) Long-Branch Type (ARM) 002 - Unknown (Odd Effect) XXXXXXX = ?	--
2	16-bit OR 2XXXXXXX YYYY	OR's value at address XXXXXXX with YYYY.	Tested on VBA, not tested on hardware
3	8-bit RAM Write 3XXXXXXX 00YY	Writes YY to address XXXXXXX.	--
4	Serial Repeater 4ZZZZZZZ YYYY AAAAXXXX VVVV	ZZZZZZZ is the address to start at and YYYY is the starting value. AAAA is the value to increment with. XXXX is the number of address iterations. And finally, VVVV is the amount added to each address iteration	-
5	Super Code/Memwrite 5XXXXXXX YYYY ZZZZZZZZ ZZZZ ........ ZZZZZZZZ ZZZZ	XXXXXXX is the address where the writing begins, YYYY is the number of halfwords to write and ZZZZZZZZ ZZZZ are the halfwords. Example Say you had the following addresses and wanted to condense them in to something smaller. 02000000 1122 02000002 3344 02000004 5566 02000006 7788 02000008 99AA 0200000C BBCC First, you must flip the bytes for each halfword. So 1122 becomes 2211, 3344 becomes 4433, etc. Being that CBA alreadly multiplies the number of halfwords to write by 2, divide the number of addresses you have by 2 and use this in place of YYYY. Now, with the Super Code this would come out as: 52000000 0003 22114433 6655 8877AA99 CCBB	Each address is automatically incremented by 2. (Non-changeable)
6	16-bit AND 6XXXXXXX YYYY	AND's value at address XXXXXXX with YYYY.	--
7	16-bit If Equal To 7XXXXXXX YYYY	Activates next code if value at address XXXXXXX is equal to YYYY.	--
8	16-bit RAM Write 8XXXXXXX YYYY	Writes YYYY to address XXXXXXX.	--
9	Change Encryption Seeds (if used as first code) 9YYYYYYY YYYY	Details not researched.	--
A	16-bit If Not Equal To AXXXXXXX YYYY	Activates next code if value at address XXXXXXX is NOT equal to YYYY	Must be an even address.
B	If Greater Than BXXXXXXX YYYY	If address XXXXXXX's value is Greater Than YYYY, then activate the next code.	--
C	If Lesser Than CXXXXXXX YYYY	If address XXXXXXX's value is Lesser Than YYYY, then activate the next code.	--
D	Pad Read/Button Activator D0000020 YYYY	Activates next code if YYYY is equal to the button currently being pressed.	--
E	Increment/Decrement EXXXXXXX YYYY	Increase or Decrease the value of XXXXXXX by YYYY. This code type uses value ranges to determine whether to do an increment or decrement. Incremental ranges are: 0000 - 7FFF. Decremental ranges are: 8000 - FFFF.	--
F	Unknown	Unknown	--

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Sega Systems

Dreamcast

GameShark, Codebreaker and Xploder

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Type	Description	Example	Other
00	8-bit Constant Write 00XXXXXX 000000YY	Writes YY to address XXXXXX.	--
01	16-bit Constant Write 01XXXXXX 0000YYYY	Writes YYYY to address XXXXXX.	--
02	32-bit Constant Write 02XXXXXX YYYYYYYY	Writes YYYYYYYY to address XXXXXX.	--
0300	32-bit Group Write 0300XXXX YYYYYYYY VVVVVVVV ........ VVVVVVVV	XXXX is the amount of 32-bit writes to perform, YYYYYYYY is the starting address to write to, VVVVVVVV are the values to write. Example: 03000002 <- Declares two writes are to be done. 8CD00000 <- The address writes are to begin at. 11111111 <- Value to be used in write #1 22222222 <- Value to be used in write #2 This would write 11111111 to 8CD00000, and 22222222 to 8CD00004.	You must have values defined for each 32-bit write this code type makes.
0301	8-bit Incrementive Write 030100YY XXXXXXXX	Adds YY to value at address XXXXXXXX.	--
0302	8-bit Decrementive Write 030200YY XXXXXXXX	Subtracts YY from value at address XXXXXXXX.	--
0303	16-bit Incrementive Write 0303YYYY XXXXXXXX	Adds YYYY to value at address XXXXXXXX.	--
0304	16-bit Decrementive Write 0304YYYY XXXXXXXX	Subtracts YYYY from value at address XXXXXXXX.	--
0305	32-bit Incrementive Write 03050000 XXXXXXXX YYYYYYYY	Adds YYYYYYYY to value at address XXXXXXXX.	--
0306	32-bit Decrementive Write 03060000 XXXXXXXX YYYYYYYY	Subtracts YYYYYYYY from value at address XXXXXXXX.	--
04	32-bit Serial Repeater 04XXXXXX WWWWZZZZ YYYYYYYY	XXXXXX is the starting address, WWWW is the amount of writes, ZZZZ is the number to increment the address by (multiplied by 4 by CB/XP), and YYYYYYYY is the 32-bit value.	The address MUST end with 0, 4, 8, or C.
05	Memory Copy 05XXXXXX YYYYYYYY ZZZZZZZZ	XXXXXX is the to copy from, YYYYYYYY is to copy to, and ZZZZZZZZ is the number of bytes to copy.	--
071	Change Decryption Type 071000XX	XX defines the decryption type. Only 00-07 perform valid changes.	--
0B	Delay Code 0B0XXXXX	Waits XXXXX cycles before enabling ANY codes.	Default wait time is 1000 (0x3E8)
0C	32-bit If Equal To - Enable ALL 0C0XXXXX YYYYYYYY	If value at address 8CXXXXX is equal to YYYYYYYY - then enable ALL codes.	--
0D	16-bit Condition 0DXXXXXX 000ZYYYY	XXXXXX is the address used for the condition, Z is the condition type, YYYY is the 16-bit value used for the condition.	Z Values (Condition types): 0 - Equal To 1 - Not Equal To 2 - Less Than 3 - Greater Than
0E	16-bit Condition-Skip Multi Lines 0EWWYYYY 0ZXXXXXX	WW is the number of lines to skip, YYYY is the 16-bit value used for the condition, Z is the condition type, XXXXXX is the address used for the condition.	Note: Lines are only skipped if the condition returns false. Z Values (Condition types): 0 - Equal To 1 - Not Equal To 2 - Less Than 3 - Greater Than
0F	16-bit Write Once, on Bootup. 0FXXXXXX 0000YYYY	Writes YYYY to address XXXXXX ONCE, on bootup.	The address must be even.

Saturn

GameShark and Pro Action Replay

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Type	Description	Example	Other
0	16-bit Write Once 0XXXXXXX YYYY	Writes YYYY to address XXXXXXX only once upon bootup.	--
1	16-bit Constant Write 1XXXXXXX YYYY	Writes YYYY to address XXXXXXX.	--
3	8-bit Constant Write 3XXXXXXX 00YY	Writes YY to address XXXXXXX.	--
D	16-bit If Equal To DXXXXXXX YYYY	If value at XXXXXXX is equal to YYYY, then execute the next code.	--
Enable Code	Enable Code FXXXXXXX YYYY BXXXXXXX YYYY	--	--