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Plus
,/* Booting from cartridge */
== Booting from cartridge ==
Beware, the Z80 is in Interrupt Mode 0 by default. Also, the The FDC is in DMA mode by default. And the hardware sprites memory has random value.
Anyway, you have to initialize all internal components (Z80, PPI, CRTC, AY, etc) when you are booting from cartridge.
