Sinclair ZX80 / ZX81 / Z88 Forums

7350bps is 7,3 KiloByte per second? In this case It means bits / s as Siggi said. And the fast loading routine needs 8 bits to transmit a byte (other loading routines like MSX system takes 11 bits). So 7350 bps is 918 bytes per second. That is an average speed. 'Zeros' are transmited faster than 'o...

Good news. Otla tool for zx81 users is now available. http://code.google.com/p/otla/downloads/list Download last version otla_bin_win_2.2.0.zip (source is also available). Wav examples that I posted here were made for the lowest speed (7350 bps). HIgher speeds are possible. May be you can experiment...

RST 08H DEFB $FF That is the solution!!! Thanks. One problem could be, that your program part in the printer buffer at 16444 is overwritten by the loaded program. That is solved this way. Before converting the original bytes in .p file 27 bytes at address 16444 are modified with bytes of the loadin...

Excellent! Then the PC tool for converting zx81 files will be released soon. It will convert .z81 and .p files to .wav. .z81 conversion is already developed. For .p almost. There's a little problem to solve. May be you can help me here. I'll explain it. This is the program for the hi-spped loadings:...

Hi I'm new here and maybe you can help me. I've developed the Otla tool that makes hi-loadings for MSX , Amstrad and and ZX Spectrum sistems. Now i`m adapting it for zx81. But i have a problem. I don`t have any real zx81 for doing the final tests Here: http://personal.auna.com/casariche/zx81/test_z8...