если сделаешь ему полную дешифрацию (т.е. A0-A7)+ сигнал DOS, то проблем вообще никогда не будет..
Вид для печати
нет
You need enable FDD ports for ZX basic. Original betadisc disable ports is trdos rom is disconnect.
Easy way: connect 16kB rom chip with 48rom to betadisc, start your ZX and press RANDOMIZE USR 15616. ZX will crash, but TRDOS(48rom) will always connect and ports enabled.
To make ports accessible through BASIC I plan only for the period of testing, then they will be included, as it is necessary, only at active TR-DOS. By the way, ROM TR-DOS it is started normally, ports see. But now I meanwhile wish to make work with ROM-disk, and already then to be engaged in emulation WD1793.