Hi Phil, > Are you meaning to use CP/M on a real NEC?
Yes, when/if a "REX2" style board could ever be designed for the NEC, or if I can figure out the design of these SOABAR ROM cartridges for the NEC bus connect, and adapt for RAM instead. :) > I'm curious as to what sort of CP/M programs you found useful on your NEC? I had Nevada BASIC, MODEM, and various CP/M games that might be cool to revisit. You know, it's really weird that I've never seen an NEC or M100 with a PICDisk system come up for sale on eBay. Makes me wonder just how many of these were ever sold in the first place. Gary On Sun, Jul 9, 2017 at 2:21 PM, Philip Avery <pav...@xtra.co.nz> wrote: > Thanks Gary > > Are you meaning to use CP/M on a real NEC? That would depend on whether > any new hardware developed will apply to the NEC. Once it works on a real > M100, then the BIOS changes required for NEC would be relatively minor I > should think. > > I'm curious as to what sort of CP/M programs you found useful on your NEC? > > Philip > *Dinosaur IT: Back where modern IT fears to tread!* > > > On 10/07/2017 5:21 AM, Gary Weber wrote: > > Philip, > > It is an amazing thing you have done. > > I used to have an 8201A with the PIC-Disk system that provided a full > blown CP/M operating system. After losing that original computer and disk > system to theft, I was left without access to 20 disks of CP/M files and > programs and back-ups of my 8201A memory images for quite a while. I did > end up resolving the situation by the use of some software called 22Disk, > which let me gain access to the disks on an MS-DOS machine. > > But, I still had all these CP/M programs that were unusable to me. And > now, I am wondering, would it be a relatively easy operation to take your > M100 + CP/M solution and port it over to the NEC PC-8201A/8300 platform? > Hoping it may just be a few differences in BIOS calls and I/O port > mappings. This is definitely something I'd want to try to achieve. > > THanks for your work on this! > Gary > > > On Sun, Jul 9, 2017 at 3:45 AM, roger <ro...@ammeberg.com> wrote: > >> Have you got all the cbios calls working or do you want help writing then? >> >> Roger >> >> >> Skickat från min Samsung Galaxy-smartphone. >> >> -------- Originalmeddelande -------- >> Från: Philip Avery <pav...@xtra.co.nz> >> Datum: 2017-07-09 01:33 (GMT+01:00) >> Till: m100 <m100@lists.bitchin100.com> >> Rubrik: [M100] CP/M has arrived for the M100 >> >> Well, it's arrived as far as Virtual T. It will need a new hardware >> device developed to use on a real M100. >> >> Over a decade in the making (started in 2006), I present 64K CP/M 2.2 >> running in VT with Remem enabled. The Remem is used as RAMdisk, to >> emulate two disk drives of about 241KB each. >> >> To share this with the group, it would be easiest to share my VT >> remem.bin (6MB). Together with my instructions in pdf, you'll be on the >> air very quickly. >> John Hogerhuis: May I send this to you to host on the bitchin.com site? >> Ken Pettit: Will my windows variant of remem.bin work with all the other >> variants of VT 1.7? >> >> While in theory it will work on a real M100 with Remem, and with >> additional software could use a NADSBox to talk to the modern world (SD >> card) - I think as these two items aren't readily available, it would >> best if a new hardware solution is developed. Now that it's working in >> the M100 environment, it's relatively straightforward to modify the BIOS >> to work with any RAMdisk, other storage device or even a wireless >> solution. >> >> Thanks to Mike Stein for some beta testing. >> >> Philip >> > > >
