NMI in TRDOS

[VELESOFT]

Is possible press NMI button for save snapshot on betadisc if 128 rom is set ?

Is possible save 128kB snapshot if is used trdos with ramdisc support (TRDOS 6.10e) if is set drive D with ramdisc ? Or all trdos versions save snapshot only to real FDD ?

[Advertiser]

[mishutka]

Judging by a disassembler - yes

[VELESOFT]

After press NMI button access trdos to fdd ports in neverending loop (I use betadisc without FDD, without KR1818VG93, and without FDC ports - only trdos memory is enable and 1MB ZX memory for ramdisc). Can I test it in emulator ? ZX emulators not support TRDOS NMI, only classic NMI is ebabled.

[fan]

Can I test it in emulator ? ZX emulators not support TRDOS NMI, only classic NMI is ebabled.

Use "Unreal" speccy emulator . CONTROL + F11 - TR-DOS magic .

Dump seves only to disk A .

Maybe you can recompile DOS6_10E to support the disk D ?

[VELESOFT]

Use "Unreal" speccy emulator . CONTROL + F11 - TR-DOS magic .

Dump seves only to disk A .

Maybe you can recompile DOS6_10E to support the disk D ?

I not use ALASM, sorry. It is possible only change drive number for save snapshot ?

[psb]

It's possible, but you have to disasm NMI routine and fix drive select OUT. (port #FF, as far as I know).

[mishutka]

0-3 bits