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\f0\fs24 \cf0 one_on_one_gs_patch.dsk\
http://204.16.8.40/other/oneonone/one_on_one_gs_patch.dsk\
\
This is a quick patch to EA's One-On-One game to run on a IIgs. Originally, the cracked version quickly crashes after the crack screen.\
The reason why is because of an invalid opcode at $8AA. On an 8-bit Apple, it would run this way:\
\

\f1 08AA: 54	     ??? (NOP)\
08AB: 5C	     ??? (NOP)\
08AC:	 A2 00    LDX #$00\
08AE: A5 E1    LDA $E1\

\f0 \'85\
\
On a 16-bit IIgs, it runs this way:\
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\f1 00/08AA: 54 5C A2       MVN $5C,$A2        \
00/08AD: 00 A5          BRK $A5            \
00/C074: B8             CLV                \
00/C075: 5C 10 00 E1    JMP $E10010        \
E1/0010: 5C CC B7 FF    JMP $FFB7CC        \
FF/B7CC: 18             CLC                \
\

\f0 The 00 aligns to create a BRK instruction, which sends the IIgs into a different bank and it never returns, causing a lock up/loop condition.\
The fix is to NOP out the instructions at 08AA and 08AB to cause everything to line back up correctly and run through the routine.\
\
It begs the question as to why it was invalid to begin with\'85 Corrupted original upload? Bug in original cracking job that was never detected?\
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Edits were done at Track 14 Sector 0C at byte AA:\
From: 	54 5C\
To:	EA EA\
\
Tested on a ROM1 and ROM3 and seemed to work fine\'85\
\
datawiz/rich\
}