Mike, not sure I follow. You know you can have multiple ram spaces in option locations. Like xr4. Could an xr4 do what you want?
Xr4 was a tidy solution. Needed a few wires to make it work. I guess I don't understand why tsdos is not compatible with option ram? Seems like it is, just like any other rom program? On Sunday, February 26, 2023, Mike Stein <[email protected]> wrote: > As you may remember, years ago I designed an adapter that let you put both > the system image and an option ROM image into a single chip that replaced > the System ROM, both the standard (new) or non-standard (old) version; some > folks on here may even still have one in their M100, probably loaded with > TS-DOS. > > In another M100 I replaced the option ROM with RAM and load/save/copy etc. > various ROM images using the EME extRAM tools, but of course I can't have > TS-DOS in the same memory area as the option ROMs. > > The Dial-a-ROM and REX are certainly excellent solutions, but I'd still > like to make the Option RAM concept compatible with TS-DOS, even if I have > to add or reuse a physical switch to select between RAM and ROM. Any other > ideas? > > m > > > > On Sat, Feb 25, 2023 at 11:26 PM John R. Hogerhuis <[email protected]> > wrote: > >> >> >> On Sat, Feb 25, 2023, 8:18 PM Mike Stein <[email protected]> wrote: >> >>> Yeah, I guess everybody has TS-DOS in ROM one way or another these days; >>> I've thought about putting it in the system ROM instead of the Scheduler >>> and Address Book, but removing them doesn't really free up much space; >>> maybe Teeny would fit... >>> >>> >> Scheduler and address book are a very simple "grep" type utility serving >> as a simple database. I feel they are too clever and minimalist a solution >> to remove :-) plus there are programs that let you use this search facility >> on any text file. >> >> -- John. >> >>> >>>
