Hello, all: I got another disk image working -- AltairDOS. And again, I have no manuals so I'm running a bit blind. This image seems to boot to a monitor program and a dot prompt. Does anyone have a command list to go with this? I've also gotten some error codes, so I probably need the whole manual. Also, I'm having a bit of a tough time...because of the configuration of the images I'm using, the status bits returned from the console are the exact opposite of a BASIC implementation. So with the emulator one could use *either* BASIC tapes *or* CP/M for example. So, I'd like to put out a call for someone with the code for a CP/M 2.2 BIOS for an Altair with the MITS floppy controller and an SIO or 2SIO serial card. Also, I'm going to need a layout of the floppy format because I will probably have to write some disk image manipulation tools for Windows so that I can regenerate a bootable CP/M image (straight T/S increments). On a positive note, I was able to get the integrated debugger that I borrowed from Jim Battle's Solace project working. This will prove to be a big help later on. Thanks Jim! Again, any help from those with a real Altair is greatly appreciated. Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/