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trueSteve2006-09-12T11:40:00+01:002006-09-12T10:41:57Z2006-09-12T10:41:57Ztag:blogger.com,1999:blog-13025086.post-115805771746741438Name Change!So due to a few leagal reasons it looks like I will have to change the name of the project! So all suggestions welcome, for the time being I'll leave it at NoNameOS to avoid getting sued :)falseSteve2006-06-19T22:48:00+01:002006-06-22T09:54:47Z2006-06-19T21:58:42Ztag:blogger.com,1999:blog-13025086.post-115075432205226085Version 0.6.0 ReleasedVersion 0.6.0 of AMOS has at last been released! A large amount of bugs have been fixed throughout the kernel, including a critical bug in the physical memory manager. The FAT driver has been improved with write support. A new CPU bound test application of the Towers of Hanoi has been included for stress testing the system. I have tested 0.6.0 on VMWare, Qemu, Bochs and a variety of machines in myfalseSteve2006-05-13T18:44:00+01:002006-05-13T18:16:18Z2006-05-13T18:16:18Ztag:blogger.com,1999:blog-13025086.post-114754417838239242Status UpdateSo a couple of people have been wondering about the status of AMOS lately as development has been a bit on the quiet side. At the moment I am sitting my final year degree exams and development is on hold for at least four more weeks. I have the 0.6.0 release ready (code up in CVS) and will release it soon along with the implementation documentation. Changes included better standard C libraryfalseSteve2006-03-22T20:55:00+00:002006-03-23T00:23:09Z2006-03-22T21:13:57Ztag:blogger.com,1999:blog-13025086.post-114306203771358490Fractal PagingSo I finally fixed a potentially fatal flaw with the paging subsystem. Before the bottom 4MB's were identity mapped and when a new page table was needed it was allocated from the physical memory manager and the appropriate entries were set by writing to that physical address! big problem after you receive a physical page above the 4MB mark. The new system uses the fractal mapping technique,falseSteve2006-03-21T16:41:00+00:002006-03-21T16:44:27Z2006-03-21T16:44:27Ztag:blogger.com,1999:blog-13025086.post-114295946768208262Website UpdateUpdated the website to encompas more than just the development blog, look to the right and you can see you may navigate to sections like screenshots and download, sweet!falseSteve2006-03-11T22:04:00+00:002006-03-15T16:32:48Z2006-03-11T22:20:56Ztag:blogger.com,1999:blog-13025086.post-114211565680800586Version 0.5.0 ReleasedReleased 0.5.0 with the near finished process manager subsystem and lots of bugfixes. A simple user shell application is included along with a test application. Each virtual console has an instance of the shell spawned on it so you can finally interface with the kernel via a pretty good set of system calls. Each process spawned is a user mode process (ring3) with its own address space so theirsfalseSteve2006-03-02T23:43:00+00:002006-03-02T23:48:32Z2006-03-02T23:48:32Ztag:blogger.com,1999:blog-13025086.post-114134331241403430Status UpdateGetting ready for a big release next week which will include the near finished process manager. We can now spawn user processes (ring3) . The kernel is fully reentrant and system calls are working. Synchronization between critical section is achieved through mutex's (read spin locks). A simple user shell for interfacing with the system is in place on all virtual consoles. Checkout CVS as all thefalse