3b1emu / changelog

add HDD support + fixes

• Sat, 17 Nov 2012 19:18:29 +0000
• by Philip Pemberton <philpem@philpem.me.uk> [Sat, 17 Nov 2012 19:18:29 +0000] rev 112
• add HDD support + fixes
  
  Patch-Author: Andrew Warkentin <andreww591!gmail>
  Patch-Message-ID: <50A772FC.8020009@gmail.com>
  
  I have added floppy write support, full hard disk emulation, and proper handling of DMA page faults to FreeBee. I also fixed the floppy step commands, changed the "force interrupt" floppy command to generate a type 1 status, and changed the DMA address counter to reset to 3fff when a transfer completes (which is what Unix seems to expect - without it, the kernel says that the floppy isn't ready). The floppy, hard disk, and DMA page fault tests all pass. Initializing hard disks and floppies also works (the geometry for both is still fixed by the size of the image, though, and format commands only appear to succeed, but they don't modify the image). Unix still doesn't run, though (it hangs after reading some sectors from the floppy).

Improve floppy disc support

• Sat, 17 Nov 2012 19:13:08 +0000
• by Philip Pemberton <philpem@philpem.me.uk> [Sat, 17 Nov 2012 19:13:08 +0000] rev 111
• Improve floppy disc support
  
  Patch-Author: Andrew Warkentin <andreww591!gmail>
  Patch-Message-ID: <50A772FC.8020009@gmail.com>

[musashi] fix stackframe type for bus errors

• Thu, 08 Dec 2011 23:44:19 +0000
• by Philip Pemberton <philpem@philpem.me.uk> [Thu, 08 Dec 2011 23:44:19 +0000] rev 110
• [musashi] fix stackframe type for bus errors
  
  Bus errors incorrectly pushed a Type 0000 stackframe, when they should have pushed a Type 1000 (Type $8) stackframe.
  Also, type 1000 frames were not handled for 68010 CPUs. They are now, but code must later be added to handle them for 68020s. FIXME!
  
  Reported-By: Armin Diehl <ad ardiehl.de>