It is looping...what happens after removing the second 24 pin eprom? Is this a gamerom or the extended testrom?
Marco
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It is looping...what happens after removing the second 24 pin eprom? Is this a gamerom or the extended testrom?
Marco
You are welcome...nice to read some feedback. What actually happened here....the testprogram scans for the presence of the extended testrom by comparing the first address with $55. If it "sees" this value it will execute the extended tests. However, system80B gameroms also have $55 at their address. The testprogram validates $55 and then tries to execute some unexpected code from the gamerom which crashes the testprogram.....
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