arcachofo and Fizik_S like this post
The main problem in that circuit is that you are using resistors in the buses, negating the speed of pure logic circuits.vranik wrote:I decided to implement it in C++ because of speed, but it is still very slow.
Solved at Rev 1764.(Let me know if I did it wrong).I discovered bug in z80core. The maskable interrupt doesn't work correctly. It is necessary to move lines 838 - 844 (switch command) to begining of the function opCodeFetch() to line 833.
It is probably better to make it as an MCU:The class ULA_ZX48k is derived from Chip, but there is some problem during switching package and logic symbol. Also I don't know how to assign pins by their names from package file. Now they are assigned by numbers. The last problem is that I don't know how to set output voltage at pin with defined internal resistance.
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