11.05.2008 13:24
[#6]
Re: KKolor - świetne demo na ZX Spectrum
@5h00n4y, post #5
Z notki do dema:
Most of the code is actually written in Z80 and runs using a stripped
down Z80 emulator. All of the esoteric features of the chip have been
dropped - including annoying things like clock cycles and anything
but the most essential instructions
The GPU (and other utility functions like maths and resource loading)
are implemented in C and called through rst instructions. The audio
comes courtesy of a version of VTXPlay, hacked to give six channels
of sound. The original tune was created in Vortex Tracker. The
graphics use a single OpenGL texture and are dumped there from the
emulator cores memory every frame. The screen in memory uses a
similar layout to that of a real Spectrum but without that bloody
annoying interleaving of pixel rows
So this demo is a little bit unusual - it is essentially a tricked
out emulator with a demo, all in 64k. But where's the fun in doing
things the normal way?
Ostatnia modyfikacja: 11.05.08 13:24
Most of the code is actually written in Z80 and runs using a stripped
down Z80 emulator. All of the esoteric features of the chip have been
dropped - including annoying things like clock cycles and anything
but the most essential instructions
The GPU (and other utility functions like maths and resource loading)
are implemented in C and called through rst instructions. The audio
comes courtesy of a version of VTXPlay, hacked to give six channels
of sound. The original tune was created in Vortex Tracker. The
graphics use a single OpenGL texture and are dumped there from the
emulator cores memory every frame. The screen in memory uses a
similar layout to that of a real Spectrum but without that bloody
annoying interleaving of pixel rows
So this demo is a little bit unusual - it is essentially a tricked
out emulator with a demo, all in 64k. But where's the fun in doing
things the normal way?
Ostatnia modyfikacja: 11.05.08 13:24