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Re: [N8VEM-S100:5125] JAIR 8080 Board- It's alive!


I've been using the YAZE (Yet Another Z80 Emulator) emulator on my Linux laptop.
I have a collection of compilers and can manage CP/M disk images images. You may be
able to read/write the DISK-A.BIN file. I don't have time now but I'll give it a try later.

YAZE runs on Unix, Linux, Oax OS X, Windows (with cygwin).


On 09/ 1/14 08:47 AM, Jeff Galinat wrote:
Hi Josh,
  I figured it out.  I was making it more difficult that it was.  I finally realized the boot ROM was looking for DISK-A.BIN even thought the README txt file told me just that.  I just copied that file to the card & now it boots into CP/M.  It appears that the only file in the directory is WOW.COM.    I realize the firmware/software components of this project are still in development but what would be the easiest method of adding files to the DISK-A.BIN image file?  Sorry if the questions are obvious but I am better with hardware side of things versus the software side.

On 9/1/2014 10:42 AM, Jeff Galinat wrote:
Hi Josh (& all that are interested),
  I have finished the build of the JAIR 8080 board and I can get into the monitor, test some RAM, ports, examine memory, etc.  I have been unable to boot CP/M however.  I thinks that it must be the way I prepared the SD card of the card that I am using.  I have normally used windiskimager to create disk images on SD cards.  Windiskimager typically uses .img image files to create a disk image on the card.  I tried using the .bin file as the source but the SD card doesn't appear bootable so I assume I did something wrong.  Also what size cards are you using?  Most of my cards are SDHC of 4,8 or 16gb capacities.  I do have a few 1gb standard SD cards that I can try also.
  I have to admit that I was pretty excited to see your design come to life.  It is very cool indeed.  Also I realize that you are preparing for VCF-MW so it may have to wait but does any guide exist for the monitor commands.  I was able to figure out most of them but I am not sure about the RAM test, unassemble, dump & SD card functions.

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Don Caprio