Code Types

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

Playstation Systems

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Playstation

Gameshark

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Type	Description	Example	Other
30	8-bit constant write	3XXXXXXX 00YY Writes YY to Address XXXXXXX	NA
80	16-bit constant write	8XXXXXXX ZZYY Writes ZZYY to Address XXXXXXX	NA
50	serial repeater	5000XXYY 00ZZ 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
E0	8-bit equal-to trigger	E0XXXXXX 00YY Activates next code if address 80XXXXXX is equal to YY	Gameshark 2.2 and higher.
E1	8-bit different-from trigger	E1XXXXXX 00YY Activates next code if address 80XXXXXX is different from YY	Gameshark 2.2(?) and higher.
E2	8-bit less-than trigger	E2XXXXXX 00YY Activates next code if address 80XXXXXX is less than YY	Gameshark 2.2 and higher.
E3	8-bit greater-than trigger	E3XXXXXX 00YY Activates next code if address 80XXXXXX is greater than YY	Gameshark 2.2 and higher.
D0	16-bit equal-to trigger	D0XXXXXX YYYY Activates next code if address 80XXXXXX is equal to YYYY	N/A
D1	16-bit different-from trigger	D1XXXXXX YYYY Activates next code if address 80XXXXXX is different from YYYY	Gameshark 2.2 and higher.
D2	16-bit less-than trigger	D2XXXXXX YYYY Activates next code if address 80XXXXXX is less than YYYY	Gameshark 2.2 and higher.
D3	16-bit greater-than trigger	D3XXXXXX YYYY Activates next code if address 80XXXXXX is greater than YYYY	Gameshark 2.2 and higher.
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
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
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
10	16-bit incrementer	10XXXXXX YYYY Increments value at address 80XXXXXX by YYYY	Gameshark 2.2 and higher. Use with a joker
11	16-bit decrementer	11XXXXXX YYYY Decrements value at address 80XXXXXX by YYYY	Gameshark 2.2 and higher. Use with a joker
20	8-bit incrementer	20XXXXXX 00YY Increments value at address 80XXXXXX by YY	Gameshark 2.2 and higher. Use with a joker
21	8-bit decrementer	21XXXXXX 00YY Decrements value at address 80XXXXXX by YY	Gameshark 2.2 and higher. Use with a joker
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.
C1	codes-on delay	C1000000 YYYY Delays codes from being on by YYYY time when game starts. 4000-5000 should give 20-30 seconds.	NA
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	NA

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.

Xploder/Codebreaker

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Type	Description	Example	Other
30	8-bit constant write	3XXXXXXX 00YY Writes YY to Address XXXXXXX	NA
80	16-bit constant write	8XXXXXXX ZZYY Writes ZZYY to Address XXXXXXX	NA
70	16-bit equal-to trigger	70XXXXXX YYYY Activates next code if address 80XXXXXX is equal to YYYY	NA

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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	NA
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 = ?	NA
2	16-bit bitwise OR	2XXXXXXX YYYY XXXXXXX = Address YYYY = Value to OR with	Tested on VBA, not tested on hardware
3	8-bit RAM Write	3XXXXXXX 00YY XXXXXXX = Address YY = Value to write	NA
4	serial repeater	4qqqqqqq xxyy XXYY#### ++++ qqqqqqq=Address to Start At xxyy = Start Value XXYY = Add To Value #### = Number of Address Iterations ++++ = Amount Added to each Address Iteration	XXYY portion tested in VBA, not tested on hardware
5	Unknown	Unknown	NA
6	16-bit bitwise AND	6XXXXXXX YYYY XXXXXXX = Address YYYY = Value to AND with	NA
7	16-bit equal-to trigger	7XXXXXXX YYYY Activates next code if address XXXXXXX is equal to YYYY	NA
8	16-bit RAM Write	8XXXXXXX YYYY XXXXXXX = Address YYYY = Value to write	NA
9	Change Encryption Seeds (if used as first code)	9YYYYYYY YYYY Details not researched	NA
A	16-bit not-equal-to trigger	AXXXXXXX YYYY Activates next code if address XXXXXXX is not equal to YYYY	NA
B	Unknown	Unknown	NA
C	Unknown	Unknown	NA
D	Unknown	Unknown	NA
E	Unknown	Unknown	NA
F	Unknown	Unknown	NA

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Sega Systems

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