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Forum: Programming Topic: Feature Tests

Sheep64

Post subject: Feature Tests

Posted: Thu Apr 29, 2021 10:14 am

Replies: 6
Views: 1636

... RegY can be used to determine the length of the opcode. Other tests may be required. As an example of a 64 bit extension test, 65CE02 and XR1600 can be distinguished by testing opcode $17 to determine bit operation or prefix extension. Specifically, LDA #0 // $17 $A9 // $17 $A9 only leaves ...

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