7MZh

ZXNet echo conference «hardware.zx»

From TYAX To All 31 May 2006

Hello hero her> With a clock frequency of eZ80 = 50MHz and a standard pixel stream in her> 7MHz the eZ80 has 7 sometimes 8 commands for each pixel, this is without her> accounting for what else PS/2, for example, scan, process requests to her> virtual ports, etc. will be difficult. If you rely on ZX-NEXT like this her> there the circuit is made in such a way that the machine cycles of the processor are already used as her> forming signals this time, secondly it is nothing other than her> actually doesn’t have time to display the image. Where does the 7MZh flow come from? According to estimates, it turns out 256x192x50..100 = 2.457600..4.915200, the border is processed separately (if the resolution is higher 256x192), and the keyboard up to 50 times per second. Moreover, if you remember how If an image is formed, then you can process 8 bits + attributes at once. B next'e second processor is simpler. The algorithm can be viewed from the firmware disassembler or chat with the author... if you're still in business. her> What is a 100-paw controller? Now I'm thinking about giving up the controller completely (fujitsu-simens). On there is no more than a dozen buildings scattered, a loss in area, but it’s not necessary program chips.