https://wiki.gamehacking.org/index.php?action=history&feed=atom&title=Magicard%2FNotes
Magicard/Notes - Revision history
2026-06-13T12:06:01Z
Revision history for this page on the wiki
MediaWiki 1.41.1
https://wiki.gamehacking.org/index.php?title=Magicard/Notes&diff=5687&oldid=prev
MathUser at 18:16, 5 September 2015
2015-09-05T18:16:16Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 18:16, 5 September 2015</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l132">Line 132:</td>
<td colspan="2" class="diff-lineno">Line 132:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==External Links==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==External Links==</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*[https://code.google.com/p/genplus-gx/downloads/detail?name=gamtec.txt Original source]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*[https://code.google.com/p/genplus-gx/downloads/detail?name=gamtec.txt Original source]</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:Game Enhancer]]</ins></div></td></tr>
</table>
MathUser
https://wiki.gamehacking.org/index.php?title=Magicard/Notes&diff=5300&oldid=prev
MathUser at 13:32, 16 July 2015
2015-07-16T13:32:59Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:32, 16 July 2015</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">The following are notes for the [[Magicard]]:</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Gamtec Magicard==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Gamtec Magicard==</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
</table>
MathUser
https://wiki.gamehacking.org/index.php?title=Magicard/Notes&diff=5299&oldid=prev
MathUser: Created page with "==Gamtec Magicard== (c) December 2010 - EkeEke <br> contact: eke_eke31@yahoo.fr <br> == Overview== The Magicard is an unlicensed Mega Drive cheat cartridge that was manuf..."
2015-07-16T13:32:08Z
<p>Created page with "==Gamtec Magicard== (c) December 2010 - EkeEke <br> contact: eke_eke31@yahoo.fr <br> == Overview== The Magicard is an unlicensed Mega Drive cheat cartridge that was manuf..."</p>
<p><b>New page</b></p><div>==Gamtec Magicard==<br />
<br />
(c) December 2010 - EkeEke <br><br />
contact: eke_eke31@yahoo.fr <br><br />
<br />
<br />
<br />
== Overview==<br />
<br />
The Magicard is an unlicensed Mega Drive cheat cartridge that was manufactured by Gamtec, a taiwanese company that also developped a few unlicensed games for the Mega Drive. <br><br />
It seems to be nothing more than a Game Genie clone, with very similar (copied ?) hardware architecture. Magicard software seems to have however less features and uses its own specific cheat code format.<br />
<br />
<br />
== Registers Mapping==<br />
<br />
$8000: Mode Register <br><br />
----------------------------------------------- <br><br />
D7: unknown (always set to 1) <br><br />
D6: unknown (always set to 1) <br><br />
D5: code#5 status (0: enabled, 1: disabled) <br><br />
D4: code#4 status (0: enabled, 1: disabled) <br><br />
D3: code#3 status (0: enabled, 1: disabled) <br><br />
D2: code#2 status (0: enabled, 1: disabled) <br><br />
D1: code#1 status (0: enabled, 1: disabled) <br><br />
D0: mode bit (0:Magicard ROM, 1: cartridge ROM)<br />
<br />
$8002-$801E: Patch Registers <br><br />
-------------------------------------------------------------- <br><br />
$8002: code#1 patch data <br><br />
$8004: code#1 patch address MSB <br><br />
$8006: code#1 patch address LSB <br><br />
$8008: code#2 patch data <br><br />
$800A: code#2 patch address MSB <br><br />
$800C: code#2 patch address LSB <br><br />
$800E: code#3 patch data <br><br />
$8010: code#3 patch address MSB <br><br />
$8012: code#3 patch address LSB <br><br />
$8014: code#4 patch data <br><br />
$8016: code#4 patch address MSB <br><br />
$8018: code#4 patch address LSB <br><br />
$801A: code#5 patch data <br><br />
$800C: code#5 patch address MSB <br><br />
$801E: code#5 patch address LSB<br />
<br />
<br />
Notes: <br><br />
---------------- <br><br />
(1) Magicard software always seems to enable all codes on exit, even if none were entered. <br><br />
(2) Registers seem to be write only (no reads are done by Maficard software) <br><br />
(3) Registers can be accessed as byte (only MSB or LSB is updated)<br />
<br />
<br />
<br />
==Cheat Code Format==<br />
<br />
Characters : <br><br />
------------------------<br />
<br />
There are 16 available characters. Each one can be encoded in a 4-bits value.<br />
<br />
A=0000 (+0) <br><br />
B=0001 (+1) <br><br />
D=0010 (+2) <br><br />
F=0011 (+3) <br><br />
G=0100 (+4) <br><br />
H=0101 (+5) <br><br />
I=0110 (+6) <br><br />
K=0111 (+7) <br><br />
N=1000 (-8) <br><br />
P=1001 (-7) <br><br />
R=1010 (-6) <br><br />
S=1011 (-5) <br><br />
T=1100 (-4) <br><br />
U=1101 (-3) <br><br />
Y=1110 (-2) <br><br />
Z=1111 (-1)<br />
<br />
<br />
==Gamtec Code==<br />
----------------------------<br />
<br />
Each code is made of 10 selectable characters. <br><br />
Each bits (one character = 4 bits) are represented below:<br />
<br />
abcd efgh ijkl mnop qrst uvwx yzAB CDEF GHIJ KLMN <br><br />
<nowiki>#</nowiki>1 #2 #3 #4 #5 #6 #7 #8 #9 #10<br />
<br />
<br />
==Patch Decoding==<br />
--------------------------------------<br />
<br />
A patch is made of a 24 bits address & 16 bits patch data. <br><br />
This makes a total of 5 bytes or 10 x 4-bits nibbles, address being first & data next.<br />
<br />
4-bits nibbles are calculated using characters 4-bits value, with the following formula:<br />
<br />
0110 0000 0000 0000 0000 0110 : 0000 0000 0000 0000 <br><br />
+ abcd efgh yzAB CDEF GHIJ KLMN : ijkl mnop qrst uvwx <br><br />
+ ijkl ijkl ijkl ijkl ijkl ijkl : ijkl ijkl 0000 ijkl <br><br />
- qrst qrst qrst qrst qrst qrst : qrst qrst ijkl qrst <br><br />
& 1111 1111 1111 1111 1111 1111 : 1111 1111 1111 1111<br />
<br />
<br />
Operations are done for each group of 4-bits nibble.<br />
<br />
Example:<br />
<br />
BDBDBDBDBD:<br />
<br />
0110 0000 0000 0000 0000 0110 : 0000 0000 0000 0000 <br><br />
+ 0001 0010 0001 0010 0001 0010 : 0001 0010 0001 0010 <br><br />
+ 0001 0001 0001 0001 0001 0001 : 0001 0001 0000 0001 <br><br />
- 0001 0001 0001 0001 0001 0001 : 0001 0001 0001 0001 <br><br />
& 1111 1111 1111 1111 1111 1111 : 1111 1111 1111 1111<br />
<br />
= 0111 0010 0001 0010 0001 1000 0001 0010 0000 0010 <br><br />
7 2 1 2 1 8 : 1 2 0 2<br />
<br />
BDFGHIKNPR:<br />
<br />
0110 0000 0000 0000 0000 0110 : 0000 0000 0000 0000 <br><br />
+ 0001 0010 0111 1000 1001 1010 : 0011 0100 0101 0110 <br><br />
+ 0011 0011 0011 0011 0011 0011 : 0011 0011 0000 0011 <br><br />
- 0101 0101 0101 0101 0101 0101 : 0101 0101 0011 0101 <br><br />
& 1111 1111 1111 1111 1111 1111 : 1111 1111 1111 1111 <br><br />
<br />
= 0101 0000 0101 0110 0111 1110 : 0001 0010 0010 0100 <br><br />
5 0 5 6 7 E : 1 2 2 4<br />
<br />
==External Links==<br />
*[https://code.google.com/p/genplus-gx/downloads/detail?name=gamtec.txt Original source]</div>
MathUser