This document main goal is show where one can find the SNES ROM
information. Most of this information was collected thru hacking
the rom to death and help from Norm/Yoshi/chp.
License codes are taken from SU and probably incorrect.
Source? None here, if you are going to screw with the bin,
you probably know what you are doing (HOPEFULLY).
If you have any questions, comments,corrections, additional information,
you can either find me on IRC as (MindRape) or you can send me email
(much prefered) mind@primenet.com. Also if you write anything
interesting then send it to me!
You may distribute this document freely, but you may not change
the information here and redistribute. If you use this information
please credit me. You steal this information and say you did it,
you know it's a LIE and there you are.
=[SNES ROM Makeup]===========================================================
ROM Title : 21 Bytes
* Titles are all in upper case
* Japanese titles are in high ascii values
good rule of thumb if you can't read the title and
it's country code is Japan and your American,
you probably can't play it. :>
Rom Makeup : 7654 3210
0000-0000
|__| |__|
| |
| |___Bank Size 0001 = HiROM (64K Banks Mode 21)
| 0000 = Low Rom (32K Banks Mode 20)
|
|________ROM Speed 0111 = Fast Rom
0000 = Slow Rom
* Could someone give the correct
* speeds of the ROMs? I got
* conflicting answers.
ROM Type : 1 Byte
Hex ROM Type
---------------------
00 ROM
01 ROM/RAM
02 ROM/SRAM
03 ROM/DSP1
04 ROM/DSP1/RAM
05 ROM/DSP1/SRAM
06 FX
* SRAM = Save Ram
* DSP1 = Nintendo's 1st generation of DSP (Math coprocessor)
* FX = RISC based math coprocessor
Only a couple of games support the FX Chip, Star Fox
is the most well known one.
ROM Size : 1 BYTE
Hex Size
--------------
08 2 Mbit
09 4 Mbit
0A 8 Mbit
0B 16 Mbit
0C 32 Mbit
* As of this documentation 32MBit ROMs are the largest that
Nintendo currently uses. Rumors of a 40+ kart are around,
but cannot be verified.
* 8MBit ROMs are the most common in the entire library of
SNES karts
* ROMs are always multiples 2, thus 2MBit ROMs are the smallest
Space Invaders (c) Taito is a 2MBit ROM (Japan only)
* Easy way to calc rom size without a lookup table
1 << (ROM_SIZE - 7) MBits
ie. 8Mbit ROMs = 0Ah = 10d
1 << (0A-7) = 8 Mbit
SRAM Size : 1 BYTE
Hex Size
--------------
00 No SRAM
01 16 Kbit
02 32 Kbit
03 64 Kbit
* 64Kbit is the largest SRAM size that Nintendo currently uses.
* 256Kbit is standard for most copiers.
* Easy way to calc SRAM Size without a lookup table
1 << (3+SRAM_BYTE) Kbits
ie. 16Kbit = 01
1 << (3+1) = 16
COUNTRY CODE : 1 BYTE
Hex Country Video Mode
------------------------------------------
00 Japan (NTSC)
01 USA (NTSC)
02 Europe, Oceania, Asia (PAL)
03 Sweden (PAL)
04 Finland (PAL)
05 Denmark (PAL)
06 France (PAL)
07 Holland (PAL)
08 Spain (PAL)
09 Germany, Austria, Switz (PAL)
10 Italy (PAL)
11 Hong Kong, China (PAL)
12 Indonesia (PAL)
13 Korea (PAL)
* Country Codes are from SU.INI, could someone verify these?
LICENSE : 1 BYTE
0 <Invalid License Code>
1 Nintendo
5 Zamuse
8 Capcom
9 HOT B
10 Jaleco
11 STORM (Sales Curve) (1)
15 Mebio Software
18 Gremlin Graphics
21 COBRA Team
22 Human/Field
24 Hudson Soft
26 Yanoman
28 Tecmo (1)
30 Forum
31 Park Place Productions / VIRGIN
33 Tokai Engeneering (SUNSOFT?)
34 POW
35 Loriciel / Micro World
38 Enix
40 Kemco (1)
41 Seta Co.,Ltd.
45 Visit Co.,Ltd.
53 HECT
61 Loriciel
64 Seika Corp.
65 UBI Soft
71 Spectrum Holobyte
73 Irem
75 Raya Systems/Sculptured Software
76 Renovation Pruducts
77 Malibu Games (T*HQ Inc.) / Black Pearl
79 U.S. Gold
80 Absolute Entertainment
81 Acclaim
82 Activision
83 American Sammy
84 GameTek
85 Hi Tech
86 LJN Toys
90 Mindscape
93 Technos Japan Corp. (Tradewest)
95 American Softworks Corp.
96 Titus
97 Virgin Games
98 Maxis
103 Ocean
105 Electronic Arts
107 Laser Beam
110 Elite
111 Electro Brain
112 Infogrames
113 Interplay
114 LucasArts
115 Sculptured Soft
117 STORM (Sales Curve) (2)
120 THQ Software
121 Accolade Inc.
122 Triffix Entertainment
124 Microprose
127 Kemco (2)
130 Namcot/Namco Ltd. (1)
132 Koei/Koei! (second license?)
134 Tokuma Shoten Intermedia
136 DATAM-Polystar
139 Bullet-Proof Software
140 Vic Tokai
143 I'Max
145 CHUN Soft
146 Video System Co., Ltd.
147 BEC
151 Kaneco
153 Pack in Video
154 Nichibutsu
155 TECMO (2)
156 Imagineer Co.
160 Wolf Team
164 Konami
165 K.Amusement
167 Takara
169 Technos Jap. ????
170 JVC
172 Toei Animation
173 Toho
175 Namcot/Namco Ltd. (2)
177 ASCII Co. Activison
178 BanDai America
180 Enix
182 Halken
186 Culture Brain
187 Sunsoft
188 Toshiba EMI/System Vision
189 Sony (Japan) / Imagesoft
191 Sammy
192 Taito
194 Kemco (3) ????
195 Square
196 NHK
197 Data East
198 Tonkin House
200 KOEI
202 Konami USA
205 Meldac/KAZe
206 PONY CANYON
207 Sotsu Agency
209 Sofel
210 Quest Corp.
211 Sigma
214 Naxat
216 Capcom Co., Ltd. (2)
217 Banpresto
219 Hiro
221 NCS
222 Human Entertainment
223 Ringler Studios
224 K.K. DCE / Jaleco
226 Sotsu Agency
228 T&ESoft
229 EPOCH Co.,Ltd.
231 Athena
232 Asmik
233 Natsume
234 King/A Wave
235 Atlus
236 Sony Music
238 Psygnosis / igs
243 Beam Software
244 Tec Magik
255 Hudson Soft
* License Codes are from SU.INI, could someone verify these?
* I believe the # of licenses is low. Is it possible that
License and Country codes are used in conjuction to produce
that many more licenses?
VERSION - 1 byte
* The Version is interpeted this way.
1.?? - (thanks to yoshi for the correction)
CHECKSUM COMPLEMENT - 2 bytes the complement of the checksum :>
The bits are reversed of the CHECKSUM
CHECKSUM - 2 bytes Checksum of the bin
* Anyone know how the checksum is calculated for the ROM?
NMI/VBL Vector - 2 bytes - OFFSET 81FAh (lowrom)
OFFSET 101FAh (hirom)
RESET Vector - 2 bytes where to start our code at - OFFSET 81FCh (lowrom)
- OFFSET 101FAh (hirom)
* 8000h is common for Low Roms
=[READING THE CORRECT BIN INFORMATION]==================================
The bin information can be found in 2 possible places,
a) End of the 1st 32K bank (Low ROM) (81c0h/w 512 byte header)
b) End of the 1st 64K bank (HiROM) (101c0h/w 512 byte header)
You could use UCON's method (author chp).
The method is as followed:
UCON's method is to OR the Checksum and the Complement. If the
resulting value is FFFFh, then we found the correct location of
to extract rest of the data out. HOWEVER! This fails on several
karts, such as Castle Wolfenstien 3D and Super Tetris 3 for example.
Reason being is that not all developers put the correct complement
or bother even to implement it. I would suspect! That this maybe
a ploy to keep other developers out of the bin, for if they can't
find the reset vector, disassembling becomes a bit difficult.
=[Other Information on SNES?]================================================
Famicom Development FTP Site
busop.cit.wayne.edu - pub/famidev
Yoshi's SNES Documentation 2.3
This is considered the BEST source of SNES hardware information,
and the most complete!
busop.cit.wayne.edu - pub/famidev/incoming/sndoc230.lzh
=[w0rd!]=====================================================================
w0rd to all following console dudes
GoosE_,yoshi,sir jinx,chp,SHORYUKEN,_bubsy,felon,archimede
rugalz,SinZ,dragonz,procyon,royce,hoodlem,bri_acid,kamikitty,
norm,ZillionZ Members,grayarea,Victor,drunkfux(h0h0h0h0),dmessiah,
piratendo
<insert your favorite group(s) greet here> (heh)
Later Mind Rape