MMoon.es@XEROX.ARPA (04/09/85)
Upon (finally) receiving Viasyn/ComuPro's Concurrent DOS 816, I discovered a problem: all my public domain modem software expects to directly control the hardware, bipassing the OS to do status polling; since Concurrent doesn't give its exclusive attention to the modem control program, I lose characters when inputting a continuous data stream at 1200 baud with *anything* else running concurrently. Have any of you running CCP/M in any of its various incarnations, MP/M 86 or MP/M 816 found a modem control program, either public or commercial, which can run as a background task? Has anyone succesfully hacked a MEX, MDM840, MDM901, or MDM7XX overlay to exist in this environment? If not, I have thought that one of the above overlays might be made to work if it polled a CCP/M AUX device, since Viasyn/CompuPro tells me these are handled in the same fashion as TTY devices, i.e., a ring buffer filled by an interrupt driver. This solution only works on input, however, as I believe the function code 0FFh must be used to signal input. Anybody tried something similar? I'm flying blind on this one 'till my System & Programmer's manual arrives, so I don't know *exactly* what the function codes are or do. Please advise soonest if you know a solution. MMoon.es@Xerox.ARPA
Samuel@SU-SCORE.ARPA (Sam Hahn) (04/09/85)
^X^XMMoon -- 1. I also just this week received my Concurrent CP/M (they don't call it ConcurrentDOS, for some funny reason). Along with my OS, Viasyn/Compupro packages AMCALL/MCALL-II, which comes configured for Concurrent. I'm surprised you didn't also receive this modem program. 2. Though I haven't checked, I'm under the impression that there's a Modem840 that's configurable for MP/M-86 (816) that has an RSP monitoring the modem port. You might look to see whether or not this is true. 3. Did you also have to pay $28 for the programmer's documentation??? This is another place I think Compupro really pulled a questionable move... I had to pay the extra $28 just to get the programmer's guide and system guide!!! -- Sam Hahn -------
MMoon.es@XEROX.ARPA (04/09/85)
No AMCALL/MCALL-II or any other stuff besides the OS and some utilities. Are you running an S-100 system? Might be they call the OS for Shirley/System 10, or whatever someting else. I have S-100 hardware. Maybe there are two, uh, flavors of the CCP/M port floating around? My rev number is 3.1D, do you match? I thought this kind of song and dance was over when I invested in "professional" hardware . . . JusrAnotherMushroom: MMoon.es@Xerox.ARPA
Samuel@SU-SCORE.ARPA (Sam Hahn) (04/10/85)
MM(ushr)oo(m/n) -- Yes, sir, my system is a 696/S-100 system also, with rev id 3.1D. Looks like the same one. I think they told me that if you bought MP/M-816 after a certain date, you got the update free, but without the modem program. I have a feeling there's a lot of song and dance left; there's still the hurdle of MSDOS 2.0 (or greater) compatibility. I'm sure looking forward to that one. Tip for ex-MP/M-816 users: SYSTAT from ConcurrentDOS works finely under MP/M-816. Kind of makes me want to try some of the other utilities... I can't use ConcurrentDOS yet since I'm having trouble booting it. (Can anyone help: The disk drives step about 15 times, loading the .SYS file, I think, then do what sounds like 2 whole-disk seeks, and dies.) -- Sam Hahn -------