Spectrum +3

Hello, All The other day I received several .dsk images from this miracle with games from Opera Software. The thing that bothered me the most (and still bothers me) about Spec 128 is the location of the video pages, let's say directly through ()() one from address #4000 the other - where the hell and finally I saw a simple solution to this problem - spec+3 in it you can replace page 5 with page 7 at address #4000 but it was done somehow indistinctly In general, there is port #1ffd if, when writing to it, bit0 = 0, then the ROM is switched on if bit 0=1 then work is done with RAM and this is where the fun begins when writing a number of the form xxxxx001 (the most significant bits are also significant, but we won’t talk about them now) The system configuration is changed to this port and pages instead of rom 5 2 0 become 0 1 2 3 so we have a system with 64 to RAM :) and this mode +3 is accessed by bootstrap if you write xxxxx011 then the configuration becomes 4 5 6 7 i.e. we have both pages connected and further xxxxx101 = 4 5 6 3 111 = 4 7 6 3 generally more usable than the standard one something like this :)

Hello Jerry By the way, I couldn’t run Opera games on the RealSpectrum emulator Mot, Corsarios, etc.

Hello, goodboy goo> я кстати на эмуле RealSpectrum так и не смог запустить игры от Оперы goo> Mot,Corsarios и.т.д Bad news, the news disks are the same version. I think that cpdread doesn't get a good copy or this format aren't drived for the emulators. We try them with Realspectrum & spectaculator. The disk format is very rare, it's from spanish Opera company. Do you know some utility how cpdread.exe? Whath you think about? Thanks, regards, Jose

Hello, kyv_triumph In general, the first track is standard, the rest are not The loader loads data in tracks of #1400 bytes the image is made correctly and the data is intact the whole problem is in the bootloader, perhaps the disk emulation is incomplete

Hello Jerry It is not necessary to use .dsk images. There are tzx files of these games for +3. You didn't think by chance, about how these games can be corrected and made to work on a regular 128? Is this even real? Once upon a time our coder Lyokha rewrote half of the code Mythos to make it work...

Hello Slider Sli> It is not necessary to use .dsk images. There are tzx files of these games for +3. ... not for +3, but for +2. Moreover, there are differences in the games themselves.

Hello, kyv_triumph kyv> not for +3, but for +2. Moreover, there are differences in the games themselves. Wow, that's cool, I'll have to check it out! But the question remains open - how to AT LEAST SOMETHING (+2,+3) from Mot'ov and others like them to get stuck at 128K???