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System Specification for C65

Fred Bowen

March 1, 1991

1.4.3 Operating Modes


The C65 powers up in the C64 mode. f there are no conditions present which indicate that the C64 mode is desires, such as the C= key depressed or a C64 cartridge signature found, then C65 mode will be automatically brought into context. Unlike the C128, C64 is escapable. Like the C128, all of the extended features of the C65 are accessible from the C64 mode via custom software. Whenever the system initiaties C64 mode, new VIC mode is always disabled except when DOS is required.


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