3b1emu / changelog

add Map RAM emulation

• Wed, 01 Dec 2010 22:43:52 +0000
• by Philip Pemberton <philpem@philpem.me.uk> [Wed, 01 Dec 2010 22:43:52 +0000] rev 27
• add Map RAM emulation
  
  The emulator is now capable of booting up to the point where the BootPROM accesses the floppy and hard drive controllers.
  
  Still TODO:
  Lots of I/O registers
  Memory mapping, banking and protection
  Supervisor R/W restrictions (only SV mode code should be able to R/W I/O regs, user RAM is fair game)

move repeated R/W bit-shifting stuff into macros and fix RAM addressing issue

• Wed, 01 Dec 2010 22:34:15 +0000
• by Philip Pemberton <philpem@philpem.me.uk> [Wed, 01 Dec 2010 22:34:15 +0000] rev 26
• move repeated R/W bit-shifting stuff into macros and fix RAM addressing issue

add LED decode [debug]

• Wed, 01 Dec 2010 22:15:41 +0000
• by Philip Pemberton <philpem@philpem.me.uk> [Wed, 01 Dec 2010 22:15:41 +0000] rev 25
• add LED decode [debug]