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hoglet67 / PiTubeDirect

Bare-metal Raspberry Pi project that attaches to the Acorn TUBE interface and emulates many BBC Micro Co Processors
GNU General Public License v3.0
187 stars 23 forks source link

Frame Buffer: (Feature) allow for double-buffered graphics #166

Open BigEd opened 1 year ago

BigEd commented 1 year ago

Need to allocate a double-sized frame buffer, and implement OSBYTEs &70 and &71, to allow a fast flip to a pre-drawn screen and to send VDU output to the not-visible screen.