*** CRT - CaRTridge Images (from the CCS64 emulator)
*** Document revision: 1.10
*** Last updated: Nov 27, 2005
*** Contributors/sources: Per Hakan Sundell,
Markus Brenner
Marco Van Den Heuvel
Cartridge files were introduced in the CCS64 emulator, written by Per
Hakan Sundell, and use the ".CRT" file extension. This format was created
to handle the various ROM cartridges that exist, such as Action Replay, the
Power cartridge, and the Final Cartridge.
Normal game cartridges can load into several different memory ranges
($8000-9FFF, $A000-BFFF or $E000-FFFF). Newer utility and freezer
cartridges were less intrusive, hiding themselves until called upon, and
still others used bank-switching techniques to allow much larger ROM's than
normal. Because of these "stealthing" and bank-switching methods, a special
cartridge format was necessary, to let the emulator know where the
cartridge should reside, the control line states to enable it and any
special hardware features it uses.
Here is a dump of a sample 8K normal cartridge, "Attack Of The Mutant
Camels"...
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 00 00 01 00 00 00 00 00 00 ???@????????????
0020: 41 54 54 41 43 4B 20 4F 46 20 54 48 45 20 4D 55 ATTACK?OF?THE?MU
0030: 54 41 4E 54 20 43 41 4D 45 4C 53 00 00 00 00 00 TANT?CAMELS?????
0040: 43 48 49 50 00 00 20 10 00 00 00 00 80 00 20 00 CHIP????????????
0050: D3 9B BC FE C3 C2 CD 38 30 EA EA EA A9 01 85 13 ????++-80???????
0060: 4C B3 9B A9 08 85 5A 88 D0 FD C6 5A D0 F9 60 D0 L|????Z???+Z??`?
Bytes:$0000-000F - 16-byte cartridge signature "C64 CARTRIDGE" (padded
with space characters)
0010-0013 - File header length ($00000040, in high/low format,
calculated from offset $0000). Default value is $40
0014-0015 - Cartridge version (high/low, presently 01.00)
0016-0017 - Cartridge hardware type ($0000, high/low)
0 - Normal cartridge
1 - Action Replay
2 - KCS Power Cartridge
3 - Final Cartridge III
4 - Simons Basic
5 - Ocean type 1*
6 - Expert Cartridge
7 - Fun Play, Power Play
8 - Super Games
9 - Atomic Power
10 - Epyx Fastload
11 - Westermann Learning
12 - Rex Utility
13 - Final Cartridge I
14 - Magic Formel
15 - C64 Game System, System 3
16 - WarpSpeed
17 - Dinamic**
18 - Zaxxon, Super Zaxxon (SEGA)
19 - Magic Desk, Domark, HES Australia
0018 - Cartridge port EXROM line status
0 - inactive
1 - active
0019 - Cartridge port GAME line status
0 - inactive
1 - active
001A-001F - Reserved for future use
0020-003F - 32-byte cartridge name "CCSMON" (uppercase, padded
with null characters)
0040-xxxx - Cartridge contents (called CHIP PACKETS, as there can
be more than one per CRT file). See below for a
breakdown of the CHIP format.
(*Note: Ocean type 1 includes Navy Seals, Robocop 2 & 3, Shadow of the
Beast, Toki, Terminator 2 and more)
(**Note: Dinamic includes Narco Police and more)
---------------------------------------------------------------------------
CHIP Contents
-------------
The following is the contents of the CHIP packet, from position $0040 on
in the CRT file. Note I have re-adjusted the starting address to be $0000,
since we are now looking at a file contained in the .CRT file, and all size
references are from where it starts.
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 48 49 50 00 00 20 10 00 00 00 00 80 00 20 00 CHIP????????????
0010: D3 9B BC FE C3 C2 CD 38 30 EA EA EA A9 01 85 13 ????++-80???????
0020: 4C B3 9B A9 08 85 5A 88 D0 FD C6 5A D0 F9 60 D0 L|????Z???+Z??`?
0030: F2 60 A9 04 85 49 A9 00 85 48 A2 00 A5 48 9D 40 ?`???I???H???H?@
0040: 03 A5 49 9D 60 03 A5 48 18 69 28 85 48 A5 49 69 ??I?`??H?i(?H?Ii
0050: 00 85 49 E8 E0 18 D0 E4 60 A6 03 A4 02 BD 40 03 ??I?????`?????@?
Bytes:$0000-0003 - Contained ROM signature "CHIP" (note there can be more
than one image in a .CRT file)
0004-0007 - Total packet length ($00002010, ROM image size and
header combined) (high/low format)
0008-0009 - Chip type
0 - ROM
1 - RAM, no ROM data
2 - Flash ROM
000A-000B - Bank number ($0000 - normal cartridge)
000C-000D - Starting load address (high/low format)
000E-000F - ROM image size in bytes (high/low format, typically
$2000 or $4000)
0010-xxxx - ROM data
---------------------------------------------------------------------------
The following is a chart taken from the "Commodore Programmers Reference
Guide". It details the state of various areas of memory depending on the
state of the control lines.
Legend:
L - ROML (low)
H - ROMH (high)
G - GAME
E - EXROM
Addr LHGE LHGE LHGE LHGE LHGE LHGE LHGE LHGE LHGE
Range
1111 101X 1000 011X 001X 1110 0100 1100 XX01
default 00X0 Ultimax
-------------------------------------------------------------------------
E000-FFFF Kernal RAM RAM Kernal RAM Kernal Kernal Kernal ROMH(*)
D000-DFFF IO/CHR IO/CHR IO/RAM IO/CHR RAM IO/CHR IO/CHR IO/CHR I/O
C000-CFFF RAM RAM RAM RAM RAM RAM RAM RAM -
A000-BFFF BASIC RAM RAM RAM RAM BASIC ROMH ROMH -
8000-9FFF RAM RAM RAM RAM RAM ROML RAM ROML ROML(*)
4000-7FFF RAM RAM RAM RAM RAM RAM RAM RAM -
1000-3FFF RAM RAM RAM RAM RAM RAM RAM RAM -
0000-0FFF RAM RAM RAM RAM RAM RAM RAM RAM RAM
(*) Internal memory does not respond to write accesses in these areas
From the above chart, the following table can be built. It shows standard
cartridges, either 8K or 16K in size, and the memory ranges they load into.
Type Size Game EXRom Low Bank High Bank
in K Line Line (ROML) (ROMH)
-------------------------------------------------
Normal 8k hi lo $8000 ----
Normal 16k lo lo $8000 $A000
Ultimax 8k lo hi $E000 ----
The ROMH and ROML lines are CPU-controlled status lines, used to bank
in/out RAM, ROM or I/O, depending on what is needed at the time.
Ultimax cartridges typically are situated in the $E000-FFFF (8K) ROM
address range. There are some cartridges which only use 4K of the 8K
allocation. If the cartridge is 16K in size, then it will reside in both
$8000-9FFF and $E000-FFFF.
---------------------------------------------------------------------------
Cartridge Specifics
-------------------
0 - Normal cartridge
Size - 8Kb
GAME - active (1)
EXROM - inactive (0)
Load address - $8000-9FFF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 00 00 01 00 00 00 00 00 00 ???@????????????
0020: 41 54 54 41 43 4B 20 4F 46 20 54 48 45 20 4D 55 ATTACK?OF?THE?MU
0030: 54 41 4E 54 20 43 41 4D 45 4C 53 00 00 00 00 00 TANT?CAMELS?????
0040: 43 48 49 50 00 00 20 10 00 00 00 00 80 00 20 00 CHIP????????????
0050: D3 9B BC FE C3 C2 CD 38 30 EA EA EA A9 01 85 13 ????++-80???????
The second sample below is a dump of "Music Machine", a 4Kb ULTIMAX
mode cartridge. It is still identified as a "standard cartridge"
according to the ID.
Normal cartridge
Size - 4Kb (ULTIMAX mode)
GAME - inactive (0)
EXROM - active (1)
Load address - $F000-F7FF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 00 01 00 00 00 00 00 00 00 ???@????????????
0020: 4D 55 53 49 43 20 4D 41 43 48 49 4E 45 00 00 00 MUSIC?MACHINE???
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
0040: 43 48 49 50 00 00 10 10 00 00 00 00 F0 00 10 00 CHIP????????????
0050: 3C 66 C3 C3 66 3C FF FF 18 3C 66 7E 66 66 66 00 <f++f<???<f~fff?
The third sample is a dump of "Adventure Creator", a 16Kb standard
cartridge.
Normal cartridge
Size - 16Kb
GAME - inactive (0)
EXROM - inactive (0)
Load address - $8000-BFFF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 00 00 00 00 00 00 00 00 00 ???@????????????
0020: 41 64 76 65 6E 74 75 72 65 20 43 72 65 61 74 6F Adventure?Creato
0030: 72 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 r???????????????
0040: 43 48 49 50 00 00 40 10 00 00 00 00 80 00 40 00 CHIP??@???????@?
0050: 09 80 81 EA C3 C2 CD 38 30 A2 00 78 D8 8E 11 D0 ????++-80??x????
===========================================================================
1 - Action Replay
Size - 32Kb (4 banks of 8Kb each)
GAME - inactive (0)
EXROM - inactive (0)
Load address - $8000-9FFF (all modules)
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 01 00 00 00 00 00 00 00 00 ???@????????????
0020: 41 63 74 69 6F 6E 20 52 65 70 6C 61 79 20 56 00 Action?Replay?V?
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
0040: 43 48 49 50 00 00 20 10 00 00 00 00 80 00 20 00 CHIP????????????
0050: 09 80 0C 80 C3 C2 CD 38 30 4C 60 80 4C 63 80 4C ????++-80L`?Lc?L
===========================================================================
2 - KCS Power Cartridge
Size - 16Kb (2 banks of 8K each)
GAME - inactive (0)
EXROM - inactive (0)
Load address - module #1 - $8000-9FFF
module #2 - $A000-BFFF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 20 01 00 00 02 00 00 00 00 00 00 00 00 ????????????????
0020: 4B 43 53 20 50 6F 77 65 72 20 43 61 72 74 72 69 KCS?Power?Cartri
0030: 64 67 65 00 00 00 00 00 00 00 00 00 00 00 00 00 dge?????????????
0040: 43 48 49 50 00 00 20 10 00 00 00 00 80 00 20 00 CHIP????????????
0050: 09 80 5E FE C3 C2 CD 38 30 78 D8 A2 FF 9A A9 27 ??^?++-80x?????'
....
2050: 43 48 49 50 00 00 20 10 00 00 00 00 A0 00 20 00 CHIP????????????
2060: 97 E3 16 A1 FF FF FF 20 13 A0 A5 01 09 01 85 01 ????????????????
===========================================================================
3 - Final Cartridge III
Size - 64Kb (4 banks of 16Kb each)
GAME - active (1)
EXROM - active (1)
Load address - $8000-BFFF (all modules)
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 03 01 01 00 00 00 00 00 00 ???@????????????
0020: 46 69 6E 61 6C 20 43 61 72 74 72 69 64 67 65 20 Final?Cartridge?
0030: 49 49 49 20 31 39 38 37 00 00 00 00 00 00 00 00 III?1987????????
0040: 43 48 49 50 00 00 40 10 00 00 00 00 80 00 40 00 CHIP??@???????@?
0050: 09 80 5E FE C3 C2 CD 38 30 4C 4C 80 4C 55 95 4C ??^?++-80LL?LU?L
....
4050: 43 48 49 50 00 00 40 10 00 00 00 01 80 00 40 00 CHIP??@???????@?
4060: 01 02 00 81 5D 81 61 81 99 81 D8 81 0B 82 33 82 ????]?a???????3?
....
8060: 43 48 49 50 00 00 40 10 00 00 00 02 80 00 40 00 CHIP??@???????@?
8070: 20 43 80 20 52 80 A9 4E 20 05 DE 20 FD BF AD 39 ?C??R??N?????+?9
....
C070: 43 48 49 50 00 00 40 10 00 00 00 03 80 00 40 00 CHIP??@???????@?
C080: A2 06 BD DD 85 95 05 CA 10 F8 AE A0 02 E8 EC A2 ?????????°??????
A total of 64 kB of ROM memory is organized into four $4000 banks
located at $8000-$BFFF. Bank switching is done by writing the bank
number plus $40 into memory location $DFFF. For instance, to select
bank 2, $DFFF is set to $42.
The CRT file contains four CHIP blocks, each block with a start address
of $8000, length $4000 and the bank number in the bank field. In the
cartridge header, both EXROM ($18) and GAME ($19) are set to 1 to
enable the 16 kB ROM configuration.
===========================================================================
4 - Simons Basic
Size - 16Kb (2 banks of 8kb each)
GAME - active (1)
EXROM - inactive (0)
Load address - module #1 - $8000-9FFF
module #2 - $A000-BFFF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 04 00 01 00 00 00 00 00 00 ???@????????????
0020: 53 69 6D 6F 6E 27 73 20 42 61 73 69 63 00 00 00 Simon's?Basic???
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
0040: 43 48 49 50 00 00 20 10 00 00 00 00 80 00 20 00 CHIP????????????
0050: 52 81 52 81 C3 C2 CD 38 30 41 4C 52 81 20 2C 81 R?R?++-80ALR??,?
....
2050: 43 48 49 50 00 00 20 10 00 00 00 00 A0 00 20 00 CHIP????????????
2060: 20 A4 A6 99 9E CB A0 05 A5 A8 91 20 A4 A6 99 A2 ????????????????
SIMONS BASIC permanently uses 16 kB ($4000) bytes of cartridge memory
from $8000-$BFFF. However, through some custom bank-switching logic the
upper area ($A000-$BFFF) may be disabled so Simons BASIC may use it as
additional RAM. Writing a value of $01 to address location $DE00 banks
in ROM, $00 disables ROM and enables RAM.
The CRT file contains two CHIP blocks of length $2000 each, the first
block having a start address of $8000, the second block $A000. In the
cartridge header, EXROM ($18) is set to 0, GAME ($19) is set to 1 to
indicate the RESET/power-up configuration of 8 kB ROM.
===========================================================================
5 - Ocean type 1
Size - 128Kb, 256Kb or 512Kb sizes (16, 32 or 64 banks of 8Kb each)
GAME - inactive (0)
EXROM - inactive (0)
Load address - Banks 00-15 - $8000-9FFF
Banks 16-31 - $A000-BFFF (except Terminator 2)
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
00000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
00010: 00 00 00 40 01 00 00 05 00 00 00 00 00 00 00 00 ???@????????????
00020: 53 48 41 44 4F 57 20 4F 46 20 54 48 45 20 42 45 SHADOW?OF?THE?BE
00030: 41 53 54 00 00 00 00 00 00 00 00 00 00 00 00 00 AST?????????????
00040: 43 48 49 50 00 00 20 10 00 00 00 00 80 00 20 00 CHIP????????????
00050: 09 80 83 81 C3 C2 CD 38 30 4C 83 81 4C 76 82 80 ????++-80L??Lv??
....
02050: 43 48 49 50 00 00 20 10 00 00 00 01 80 00 20 00 CHIP????????????
02060: 59 6D 00 56 AD 00 55 AE F0 00 01 A0 FE 00 01 F8 Ym?V??U????????°
....
20140: 43 48 49 50 00 00 20 10 00 00 00 10 A0 00 20 00 CHIP????????????
20150: 0A 9A 55 FF 9B 69 57 FE AA 65 96 FE 65 0F D6 D9 ??U??iW??e??e??+
Here is a list of the known OCEAN cartridges:
Batman The Movie (128 kB)
Battle Command (128 kB)
Double Dragon (128 kB)
Navy Seals (128 kB)
Pang (128 kB)
Robocop 3 (128 kB)
Space Gun (128 kB)
Toki (128 kB)
Chase H.Q. II (256 kB)
Robocop 2 (256 kB)
Shadow of the Beast (256 kB)
Terminator 2 (512 kB)
Memory is divided into 8Kb ($2000) banks. For the lower 128Kb, memory
is banked into $8000-$9FFF and for the upper 128Kb, memory is banked
into $A000-$BFFF. Note that the Terminator 2 cartridge loads all 64
banks at $8000-$9FFF.
Bank switching is done by writing to $DE00. The lower six bits give the
bank number (ranging from 0-63). Bit 8 in this selection word is always
set.
===========================================================================
6 - Expert Cartridge
Size - 8Kb
GAME - active (1)
EXROM - active (1)
Load address - $8000-9FFF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 06 01 01 00 00 00 00 00 00 ???@????????????
0020: 45 78 70 65 72 74 20 43 61 72 74 72 69 64 67 65 Expert?Cartridge
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
0040: 43 48 49 50 00 00 40 10 00 02 00 00 80 00 20 00 CHIP??@?????????
0050: 00 00 00 0A F3 00 00 00 00 00 00 00 00 00 00 00 ????????????????
===========================================================================
7 - Fun Play, Power Play
Size - 128Kb (16 banks of 8Kb modules)
GAME - inactive (0)
EXROM - inactive (0)
Load address - $8000-9FFF (all modules)
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
00000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
00010: 00 00 00 40 01 00 00 07 00 00 00 00 00 00 00 00 ???@????????????
00020: 46 55 4E 20 50 4C 41 59 00 00 00 00 00 00 00 00 FUN?PLAY????????
00030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
00040: 43 48 49 50 00 00 20 10 00 00 00 00 80 00 20 00 CHIP????????????
00050: 1E 80 86 EA C3 C2 CD 38 30 1B 00 81 0D 08 80 00 ????++-80???????
....
02050: 43 48 49 50 00 00 20 10 00 00 00 08 80 00 20 00 CHIP????????????
02060: 78 A2 F0 86 01 BD 1D 08 9D F8 00 CA D0 F7 4C 00 x????????°????L?
....
04060: 43 48 49 50 00 00 20 10 00 00 00 10 80 00 20 00 CHIP????????????
04070: 38 E5 68 85 03 B0 11 27 03 12 C0 18 69 27 42 90 8?h????'??+?i'B?
....
06070: 43 48 49 50 00 00 20 10 00 00 00 18 80 00 20 00 CHIP????????????
06080: 44 D0 5E 06 02 C0 44 11 40 04 11 44 01 5F 1C 73 D?^??+D?@??D?_?s
....
1E130: 43 48 49 50 00 00 20 10 00 00 00 39 80 00 20 00 CHIP???????9????
1E140: 85 EB 41 EA 9E 08 03 00 C0 06 18 01 00 C0 08 03 ??A?????+????+??
The FUN PLAY Cartridge uses $DE00 for bank selection, and uses 8Kb
banks ($2000) at $8000-$9FFF. There are 16 banks of ROM memory and are
referenced by the following values:
$00 -> Bank 0
$08 -> Bank 1
$10 -> Bank 2
$18 -> Bank 3
$20 -> Bank 4
$28 -> Bank 5
$30 -> Bank 6
$38 -> Bank 7
$01 -> Bank 8
$09 -> Bank 9
$11 -> Bank 10
$19 -> Bank 11
$21 -> Bank 12
$29 -> Bank 13
$31 -> Bank 14
$39 -> Bank 15
The bank field in the chip headers is set according to the value
written to $DE00. The following bits are used for bank decoding in
$DE00 (0 being the LSB, 3 being the MSB).
Bit# 76543210
xx210xx3
After copying memory from the ROM banks, the selection program writes
a value of $86 to $DE00. This seems either to reset or disable the
cartridge ROM.
===========================================================================
8 - Super Games
Size - 64Kb (4 banks of 16Kb each)
GAME - inactive (0)
EXROM - inactive (0)
Load address - $8000-BFFF (all modules)
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 08 00 00 00 00 00 00 00 00 ???@????????????
0020: 53 55 50 45 52 20 47 41 4D 45 53 00 00 00 00 00 SUPER?GAMES?????
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
0040: 43 48 49 50 00 00 40 10 00 00 00 00 80 00 40 00 CHIP??@???????@?
0050: 0A 80 0A 80 C3 C2 CD 38 30 00 A9 80 A0 00 85 FB ????++-80???????
....
4050: 43 48 49 50 00 00 40 10 00 00 00 01 80 00 40 00 CHIP??@???????@?
4060: 27 80 A8 80 C3 C2 CD 38 30 00 40 C0 40 C0 40 C0 '???++-80?@+@+@+
....
8060: 43 48 49 50 00 00 40 10 00 00 00 02 80 00 40 00 CHIP??@???????@?
8070: 00 00 00 49 4D C7 64 47 46 45 F3 48 DC 08 7E 0B ???IM?dGFE?H??~?
....
C070: 43 48 49 50 00 00 40 10 00 00 00 03 80 00 40 00 CHIP??@???????@?
C080: D5 F9 F0 C1 D5 F7 F0 BD E8 B5 02 F0 FB C9 05 30 ???+?????+?????0
The SUPER GAMES cartridge uses 4 16Kb banks ($8000-$BFFF) of ROM
memory. Bank selecting is done by writing to $DF00.
Values for $DF00:
$00 -> Bank 0
$01 -> Bank 1 (also value $09 used)
$02 -> Bank 2
$03 -> Bank 3
Bit #2
0: ROM $8000-$BFFF
1: ROM $8000-$9FFF
Bit #3
0: ?
1: if bit #2 AND #3 are on (1) then the module is off
===========================================================================
9 - Atomic Power
Size - 32Kb (4 banks of 8Kb modules)
GAME - inactive (0)
EXROM - inactive (0)
Load address - $8000-9FFF (all modules)
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 09 00 00 00 00 00 00 00 00 ???@????????????
0020: 41 74 6F 6D 69 63 20 50 6F 77 65 72 00 00 00 00 Atomic?Power????
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
0040: 43 48 49 50 00 00 20 10 00 00 00 00 80 00 20 00 CHIP????????????
0050: 09 80 0C 80 C3 C2 CD 38 30 4C 41 80 4C 1E 80 4C ????++-80LA?L??L
....
2050: 43 48 49 50 00 00 20 10 00 00 00 01 80 00 20 00 CHIP????????????
2060: 09 80 0C 80 C3 C2 CD 38 30 4C 3F 80 4C 91 80 4C ????++-80L??L??L
....
4060: 43 48 49 50 00 00 20 10 00 00 00 02 80 00 20 00 CHIP????????????
4070: EF FC 09 80 C3 C2 CD 38 30 4C 27 80 4C DB 81 4C ????++-80L'?L??L
....
6070: 43 48 49 50 00 00 20 10 00 00 00 03 80 00 20 00 CHIP????????????
6080: 09 80 0C 80 C3 C2 CD 38 30 4C 73 86 4C 30 80 4C ????++-80Ls?L0?L
===========================================================================
10 - Epyx Fastload
Size - 8Kb
GAME - active (1)
EXROM - active (1)
Load address - $8000-9FFF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 0A 01 01 00 00 00 00 00 00 ???@????????????
0020: 45 50 59 58 20 46 41 53 54 4C 4F 41 44 00 00 00 EPYX?FASTLOAD???
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
0040: 43 48 49 50 00 00 20 10 00 00 00 00 80 00 20 00 CHIP????????????
0050: 30 80 5E FE C3 C2 CD 38 30 20 04 90 4C 38 DF AB 0?^?++-80???L8??
===========================================================================
11 - Westermann Learning
Size - 16Kb
GAME - inactive (0)
EXROM - inactive (0)
Load address - $8000-BFFF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 0B 00 00 00 00 00 00 00 00 ???@????????????
0020: 57 45 53 54 45 52 4D 41 4E 4E 00 00 00 00 00 00 WESTERMANN??????
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
0040: 43 48 49 50 00 00 20 10 00 00 00 00 80 00 40 00 CHIP??????????@?
0050: 09 80 9C 80 C3 C2 CD 38 30 A2 00 8E 16 D0 20 84 ??£?++-80???????
===========================================================================
12 - Rex Utility
Size - 8K
GAME - active (1)
EXROM - inactive (0)
Load address - $8000-9FFF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 0C 00 01 00 00 00 00 00 00 ???@????????????
0020: 52 45 58 00 00 00 00 00 00 00 00 00 00 00 00 00 REX?????????????
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
0040: 43 48 49 50 00 00 20 10 00 00 00 00 80 00 20 00 CHIP????????????
0050: 08 80 C1 FE C3 C2 CD 38 30 6C 95 E3 20 A3 FD 20 ??+?++-80l??????
===========================================================================
13 - Final Cartridge I
Size - 16Kb
GAME - active (1)
EXROM - active (1)
Load address - $8000-BFFF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 0D 01 01 00 00 00 00 00 00 ???@????????????
0020: 54 68 65 20 46 69 6E 61 6C 20 43 61 72 74 72 69 The?Final?Cartri
0030: 64 67 65 20 49 00 00 00 00 00 00 00 00 00 00 00 dge?I???????????
0040: 43 48 49 50 00 00 40 10 00 00 00 00 80 00 40 00 CHIP??@???????@?
0050: 80 BA 5E FE C3 C2 CD 38 30 00 A0 A0 20 2D FE 58 ?|^?++-80????-?X
===========================================================================
14 - Magic Formel
Size - 64Kb (8 banks of 8Kb)
GAME - Inactive (0)
EXROM - Inactive (0)
Load Address - $E000-FFFF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 0E 01 01 00 00 00 00 00 00 ???@????????????
0020: 4D 61 67 69 63 20 46 6F 72 6D 65 6C 00 00 00 00 Magic?Formel????
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
0040: 43 48 49 50 00 00 20 10 00 00 00 00 E0 00 20 00 CHIP????????????
0050: 4D 46 30 8D 00 DF 60 8D 01 DF 60 8D 02 DF 60 8D MF0???`???`???`?
...
2050: 43 48 49 50 00 00 20 10 00 00 00 01 E0 00 20 00 CHIP????????????
2060: 4C 5F E4 8D 00 DF 60 8D 01 DF 60 8D 02 DF 60 8D L_????`???`???`?
...
4060: 43 48 49 50 00 00 20 10 00 00 00 02 E0 00 20 00 CHIP????????????
4070: 4D 46 32 8D 00 DF 60 8D 01 DF 60 8D 02 DF 60 8D MF2???`???`???`?
...
6070: 43 48 49 50 00 00 20 10 00 00 00 03 E0 00 20 00 CHIP????????????
6080: 4D 46 33 8D 00 DF 60 8D 01 DF 60 8D 02 DF 60 8D MF3???`???`???`?
...
8080: 43 48 49 50 00 00 20 10 00 00 00 04 E0 00 20 00 CHIP????????????
8090: 4D 46 34 8D 00 DF 60 8D 01 DF 60 8D 02 DF 60 8D MF4???`???`???`?
...
A090: 43 48 49 50 00 00 20 10 00 00 00 05 E0 00 20 00 CHIP????????????
A0A0: 4D 46 35 8D 00 DF 60 8D 01 DF 60 8D 02 DF 60 8D MF5???`???`???`?
...
C0A0: 43 48 49 50 00 00 20 10 00 00 00 06 E0 00 20 00 CHIP????????????
C0B0: 4D 46 36 8D 00 DF 60 8D 01 DF 60 8D 02 DF 60 8D MF6???`???`???`?
..
E0B0: 43 48 49 50 00 00 20 10 00 00 00 07 E0 00 20 00 CHIP????????????
E0C0: 4D 46 37 8D 00 DF 60 8D 01 DF 60 8D 02 DF 60 8D MF7???`???`???`?
===========================================================================
15 - C64 Game System, System 3
Size - 512Kb (64 banks of 8Kb each)
GAME - inactive (0)
EXROM - active (1)
Load address - $8000-9FFF (all modules)
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
000000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
000010: 00 00 00 40 01 00 00 0F 00 01 00 00 00 00 00 00 ???@????????????
000020: 43 36 34 47 53 20 43 61 72 74 72 69 64 67 65 00 C64GS?Cartridge?
000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
000040: 43 48 49 50 00 00 20 10 00 00 00 00 80 00 20 00 CHIP????????????
000050: 6D 80 C5 80 C3 C2 CD 38 30 4C CB 80 4C 36 84 4C m?+?++-80L??L6?L
....
002050: 43 48 49 50 00 00 20 10 00 00 00 01 80 00 20 00 CHIP????????????
002060: 18 D0 A9 FF 8D 15 D0 8D 1D D0 8D 17 D0 A2 07 A9 ????????????????
....
004060: 43 48 49 50 00 00 20 10 00 00 00 02 80 00 20 00 CHIP????????????
004070: E0 08 19 21 77 84 52 98 9F 80 A5 21 31 01 31 89 ???!w?R????!1?1?
....
006070: 43 48 49 50 00 00 20 10 00 00 00 03 80 00 20 00 CHIP????????????
006080: C0 08 1C 1D A0 92 03 03 D8 AA 04 C0 B8 01 40 EA +??????????+??@?
....
07E430: 43 48 49 50 00 00 20 10 00 00 00 3F 80 00 20 00 CHIP????????????
07E440: 45 20 41 20 42 49 47 20 58 FE 4F 4E 20 54 48 49 E?A?BIG?X?ON?THI
Here is a list of the known cartridges:
C64GS 4-in-1 (Commodore) (512 kB)
Last Ninja Remix (System 3) (512 kB)
Myth (System 3) (512 kB)
ROM memory is organized in 8Kb ($2000) banks located at $8000-$9FFF.
Bank switching is done by writing to address $DE00+X, where X is the
bank number (STA $DE00,X). For instance, to read from bank 3, address
$DE03 is accessed.
The CRT file contains a string of CHIP blocks, each block with a start
address of $8000, length $2000 and the bank number in the bank field.
In the cartridge header, EXROM ($18) is set to 0, GAME ($19) is set to
1 to enable the 8 kB ROM configuration.
===========================================================================
16 - WarpSpeed
Size - 16Kb
GAME - inactive (0)
EXROM - inactive (0)
Load address - $8000-BFFF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 10 01 01 00 00 00 00 00 00 ???@????????????
0020: 57 61 72 70 73 70 65 65 64 00 00 00 00 00 00 00 Warpspeed???????
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
0040: 43 48 49 50 00 00 40 10 00 00 00 00 80 00 40 00 CHIP??@???????@?
0050: 4C 22 80 4C 22 80 FF 43 42 4D 20 53 E4 20 18 E5 L"?L"??CBM?S????
After RESET or POWER ON, 16kB of Cartridge ROM are visible at
$8000-$BFFF. Additionally, ROM normally located at $9E00-$9FFF is
mirrored into IO1 and IO2 at $DE00-$DFFF. ROM at $8000-$BFFF is
disabled by writing into the IO2 area (typically $DF00) and may be
re-enabled by writing into IO1 ($DE00). However, the $DE00-$DFFF
(IO1/IO2) area itself always remains mapped to cartridge ROM.
Included with these documents is a WRPSPEED.JPG which is the schematic
of the WarpSpeed cartridge itself.
===========================================================================
17 - Dinamic
Size - 128Kb (16 banks of 8Kb each)
GAME - inactive (0)
EXROM - active (1)
Load address - $8000-9FFF (all modules)
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
000000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
000010: 00 00 00 40 01 00 00 11 00 01 00 00 00 00 00 00 ???@????????????
000020: 4E 61 72 63 6F 20 50 6F 6C 69 63 65 00 00 00 00 Narco?Police????
000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
000040: 43 48 49 50 00 00 20 10 00 00 00 00 80 00 20 00 CHIP????????????
000050: 0B 80 0B 80 C3 C2 CD 38 30 00 00 78 A2 FF 9A D8 ????++-80??x????
..
002050: 43 48 49 50 00 00 20 10 00 00 00 01 80 00 20 00 CHIP????????????
002060: 1C 8C 1B 8C 16 16 8F 16 16 88 1C 1C 86 1C 1C 89 ????????????????
..
004060: 43 48 49 50 00 00 20 10 00 00 00 02 80 00 20 00 CHIP????????????
004070: B6 02 07 08 07 07 00 0A 0A B6 00 05 0A 00 07 07 ????????????????
..
01E130: 43 48 49 50 00 00 20 10 00 00 00 0F 80 00 20 00 CHIP????????????
01E140: 00 D5 70 03 F5 70 0F 5F 70 0F F7 70 35 FD F0 37 ??p??p?_p??p5??7
Here is a list of the known DINAMIC cartridges:
Narco Police (128 kB)
Satan (128 kB)
ROM memory is organized in 8Kb ($2000) banks located at $8000-$9FFF.
Bank switching is done by reading from address $DE00+X, where X is the
bank number (LDA $DE00,X). For instance, to read from bank 3, address
$DE03 is accessed.
The CRT file contains a string of CHIP blocks, each block with a start
address of $8000, length $2000 and the bank number in the bank field.
In the cartridge header, EXROM ($18) is set to 0, GAME ($19) is set to
1 to enable the 8 kB ROM configuration.
===========================================================================
18 - Zaxxon, Super Zaxxon (SEGA)
Size - 20Kb (3 banks of different sizes)
GAME - active (1)
EXROM - active (1)
Load address - $8000-8FFF (mirrored in $9000-9FFF, module 0, chip U1)
$A000-BFFF (banked modules 1 and 2, chip U2)
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
000000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
000010: 00 00 00 40 01 00 00 12 00 00 00 00 00 00 00 00 ???@????????????
000020: 5A 61 78 78 6F 6E 00 00 00 00 00 00 00 00 00 00 Zaxxon??????????
000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
000040: 43 48 49 50 00 00 10 10 00 00 00 00 80 00 10 00 CHIP????????????
000050: 0D 80 29 80 C3 C2 CD 38 30 78 4C 09 80 78 A9 00 ??)?++-80xL??x??
..
001050: 43 48 49 50 00 00 20 10 00 00 00 00 A0 00 20 00 CHIP????????????
001060: A2 0F BD 00 20 D0 04 CA 10 F8 60 BD 70 20 F0 0D ?????????°`?p???
..
003060: 43 48 49 50 00 00 20 10 00 00 00 01 A0 00 20 00 CHIP????????????
003070: 65 A2 36 A3 E7 A3 CB A4 94 A5 86 A6 5E A7 35 A8 e?6?????????^?5?
The (Super) Zaxxon carts use a 4Kb ($1000) ROM at $8000-$8FFF (mirrored
in $9000-$9FFF) along with two 8Kb ($2000) cartridge banks located at
$A000-$BFFF. One of the two banks is selected by doing a read access to
either the $8000-$8FFF area (bank 0 is selected) or to $9000-$9FFF area
(bank 1 is selected). EXROM ($18 = $00) and GAME ($19 = $00) lines are
always pulled to GND to select the 16 kB ROM configuration.
The CRT file includes three CHIP blocks:
a) bank = 0, load address = $8000, size = $1000
b) bank = 0, load address = $A000, size = $2000
c) bank = 1, load address = $A000, size = $2000
===========================================================================
19. Magic Desk, Domark, HES Australia
Size - 32Kb, 64Kb or 128Kb sizes (4 to 16 banks of 8Kb each)
GAME - inactive (0)
EXROM - active (1)
Load address (banks 00-15) - $8000-9FFF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 13 00 01 00 00 00 00 00 00 ???@????????????
0020: 4D 61 67 69 63 20 44 65 73 6B 00 00 00 00 00 00 Magic?Desk??????
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
0040: 43 48 49 50 00 00 20 10 00 00 00 00 80 00 20 00 CHIP????????????
0050: 09 80 C6 CA C3 C2 CD 38 30 8E 16 D0 20 A3 FD 20 ??+?++-80???????
..
2050: 43 48 49 50 00 00 20 10 00 00 00 01 80 00 20 00 CHIP????????????
2060: 00 3F 0A 01 00 86 4E 24 28 31 30 29 3A 4A 4F 59 ??????N$(10):JOY
..
4060: 43 48 49 50 00 00 20 10 00 00 00 02 80 00 20 00 CHIP????????????
4070: 00 8B C9 28 4E 24 2C 31 29 B3 B1 22 FF 22 A7 32 ???(N$,1)|?"?"?2
..
6070: 43 48 49 50 00 00 20 10 00 00 00 03 80 00 20 00 CHIP????????????
6080: AE 01 83 33 2C 37 2C 22 32 29 20 44 45 4C 20 4B ???3,7,"2)?DEL?K
This cartridge type is very similar to the OCEAN cart type: ROM memory
is organized in 8Kb ($2000) banks located at $8000-$9FFF. Bank
switching is done by writing the bank number to $DE00. Deviant from the
Ocean type, bit 8 is cleared for selecting one of the ROM banks. If bit
8 is set ($DE00 = $80), the GAME/EXROM lines are disabled, turning on
RAM at $8000-$9FFF instead of ROM.
In the cartridge header, EXROM ($18) is set to 0, GAME ($19) is set to
1 to indicate the RESET/power-up configuration of 8 kB ROM.
Here is a list of the known cartridges:
Ghosbusters (HES Australia) (32 kB)
Magic Desk (Commodore) (32 kB)
Badlands (Domark) (64 kB)
Vindicators (Domark) (64 kB)
Wonderboy (HES Australia) (64 kB)
Cyberball (Domark) (128 kB)
===========================================================================
20. Super Snapshot 5
Size - 64Kb (4 banks of 16Kb each)
GAME - active (1)
EXROM - active (1)
Load address - $8000-BFFF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 14 01 01 00 00 00 00 00 00 ???@????????????
0020: 53 75 70 65 72 20 53 6E 61 70 73 68 6F 74 20 35 Super?Snapshot?5
0030: 20 4E 54 53 43 00 00 00 00 00 00 00 00 00 00 00 ?NTSC???????????
0040: 43 48 49 50 00 00 40 10 00 00 00 00 80 00 40 00 CHIP??@???????@?
0050: 09 80 59 80 C3 C2 CD 38 30 20 03 9F 00 FA F4 20 ??Y?++-80???????
...
4050: 43 48 49 50 00 00 40 10 00 00 00 01 80 00 40 00 CHIP??@???????@?
4060: 79 DE BC FE C3 C2 CD 38 30 A9 05 8D 20 D0 8D 21 y???++-80??????!
...
8060: 43 48 49 50 00 00 40 10 00 00 00 02 80 00 40 00 CHIP??@???????@?
8070: 50 DE BC FE C3 C2 CD 38 30 A9 0A 85 6A A9 0D 85 P???++-80???j???
...
C070: 43 48 49 50 00 00 40 10 00 00 00 03 80 00 40 00 CHIP??@???????@?
C080: 50 DE BC FE C3 C2 CD 38 30 85 07 20 1A AD A5 76 P???++-80??????v
===========================================================================
21. Comal-80
Size - 64Kb (4 banks of 16Kb each)
GAME - active (1)
EXROM - active (1)
Load address - $8000-BFFF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 15 01 01 00 00 00 00 00 00 ???@????????????
0020: 43 6F 6D 61 6C 20 38 30 00 00 00 00 00 00 00 00 Comal?80????????
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
0040: 43 48 49 50 00 00 40 10 00 00 00 00 80 00 40 00 CHIP??@???????@?
0050: 87 87 70 CF C3 C2 CD 38 30 4C AA CF 4C 70 CF 4C ??p?++-80L??Lp?L
...
4050: 43 48 49 50 00 00 40 10 00 00 00 01 80 00 40 00 CHIP??@???????@?
4060: AA CF 70 CF C3 C2 CD 38 30 01 29 01 28 01 2C 04 ??p?++-80?)?(?,?
...
8060: 43 48 49 50 00 00 40 10 00 00 00 02 80 00 40 00 CHIP??@???????@?
8070: AA CF 70 CF C3 C2 CD 38 30 91 92 92 92 92 92 92 ??p?++-80???????
...
C070: 43 48 49 50 00 00 40 10 00 00 00 03 80 00 40 00 CHIP??@???????@?
C080: 7B C8 7E C8 C3 C2 CD 38 30 43 4F 4D 41 4C 80 93 {?~?++-80COMAL??
The Comal-80 Cartridge uses $DE00 for bank selection, and uses 16Kb
banks ($4000) at $8000-$BFFF. There are 4 banks of ROM memory and are
referenced by the following values:
$80 -> Bank 0
$81 -> Bank 1
$82 -> Bank 2
$83 -> Bank 3
===========================================================================
22. Structured Basic
Size - 16Kb (2 banks of 8Kb each)
GAME - active (0)
EXROM - active (1)
Load address - $8000-9FFF
No sample data/file available.
Any read/write access to $DE00 or $DE01 will switch in bank 0.
Any read/write access to $DE02 will switch in bank 1.
Any read/write access to $DE03 will switch off EXROM.
===========================================================================
23. Ross
Size - 16Kb or 32Kb sizes (1 or 2 banks of 16Kb each)
GAME - active (1)
EXROM - active (1)
Load address - $8000-BFFF
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F ASCII
----------------------------------------------- ----------------
0000: 43 36 34 20 43 41 52 54 52 49 44 47 45 20 20 20 C64?CARTRIDGE???
0010: 00 00 00 40 01 00 00 17 00 00 00 00 00 00 00 00 ???@????????????
0020: 52 6F 73 73 20 31 34 00 00 00 00 00 00 00 00 00 Ross?14?????????
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
0040: 43 48 49 50 00 00 40 10 00 00 00 00 80 00 40 00 CHIP??@???????@?
0050: 09 80 09 80 C3 C2 CD 38 30 A2 00 BD 20 80 4D 0E ????++-80?????M?
...
4050: 43 48 49 50 00 00 40 10 00 00 00 01 80 00 40 00 CHIP??@???????@?
4060: 3F 5A 4D 4D 50 4D 8D 25 3F 1A 1F 77 3F CD E0 3F ?ZMMPM?%???w?-??
Any read access to $DE00 will switch in bank 1 (if cart is 32Kb).
Any read access to $DF00 will switch off EXROM and GAME.
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