I think the limit of 2GB does apply on any QL system as it is due to the fact that our all File Systems use 2 short integers as indexes : -One as Block number (initially Sector number on MDV) -One as Byte index inside the block
With a driver making good use of unsigned integers (I am not sure all drivers do it), you can have (max) 65535 blocks and 64 sectors (512 bytes) by block (128 sectors will overflow), so : MAX = 65535 * 64 * 512 = 2 147 450 880 bytes (hence 2 GB). Regards, Alain -----Message d'origine----- De : Ql-Users [mailto:ql-users-boun...@lists.q-v-d.com] De la part de Dilwyn Jones Envoyé : lundi 20 février 2017 18:13 À : ql-us...@q-v-d.com Objet : Re: [Ql-Users] WXQT2 alternative? >> during Q68 development, I'm using Jonathan Hudson's WXQT2 to access >> QXL.WIN container files under Linux/Windows. >> >> I experienced problems when writing "large" container files over 8 or >> 16 MB. Is this a known problem? >> >> Are there alternatives to WXQT2, i.e. other graphical frontends to >> exchange files between a PC and a QXL.WIN container? >> >> What is the maximum size of QXL.WIN containers? >> >> Thanks, Peter >> > There is also a more recent tool QXLWIN by Norman Dunbar, see link. > < https://sourceforge.net/projects/qxlwin/files/ > > > This 16MB seems outdated. I use 200MB wins myself but I have heard of > bigger ones. > Neither the QPC nor the SMSQ/E manual mention any MB limit. I use a 1GB qxl.win with my QPC2. But QemuLator cannot handle it - I have to copy files to a smaller qxl.win for that. Alain Haoui said while developing QubATA that 2GB unsigned is the maximum which can be handled by QDOS. I don't know if that applies to SMSQ/E and I don't know if it applies to qxl.win, sorry. I use WXQT2 and although it seems temperamental on Windows 7 (sometimes won't start, or when it does start it complains about not being able to find the help file) it seems to manage to copy files from the 1GB QXL.WIN to a native Windows folder for me. Dilwyn _______________________________________________ QL-Users Mailing List _______________________________________________ QL-Users Mailing List
