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retrogear's latest activity
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Rretrogear replied to the thread Dual 8 inch QUMETRAK 842 rack mount floppy drive restoration.You need to jumper the RDY line. Pin 34 on a PC is not connected internally so your Ready for the 8" is probably floating ? Chuck would...
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Rretrogear replied to the thread 86-DOS 0.11 Source Code Reconstruction.Cool. Your asm86.com seems to work fine under cpm80. It's producing byte accurate code. I had tried the DRI asm86.com before but the...
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Rretrogear replied to the thread Should I Attempt to Fix Vertical Collapse on a Tandy Color Monitor CM-5?.I can't find a schematic but are you sure you didn't bump a service switch inside ? Some CRT's have a slide switch on the board to drop...
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Rretrogear replied to the thread What was the excitement of your first PC?.Pure curiosity. In 1982 I had been in the electronics service business for about 5 years and the buzz was about personal computers. I...
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Rretrogear replied to the thread Zenith Z-100 can read early 8" 86-DOS disks.scratch all that. I forgot to activate the jread and jwrite. It seems adding any jcall just locks it up
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Rretrogear replied to the thread Zenith Z-100 can read early 8" 86-DOS disks.Actually it has finished the disk read buffering by then. Would it be another function like character io that needs a stack buffer ? I...
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Rretrogear replied to the thread Zenith Z-100 can read early 8" 86-DOS disks.That's much better. It can read a V .34 8" in C: When I try from A: TYPE C:NEWS.DOC it displays a few paragraphs then blizzards with...
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Rretrogear replied to the thread Zenith Z-100 can read early 8" 86-DOS disks.Enabling the disk r/w causes it to lock before it reads command.com. Without those enabled I get the occasional lock sometimes with a...
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Rretrogear replied to the thread Zenith Z-100 can read early 8" 86-DOS disks.I see in your v2 you have stack wrappers available for all bios calls but only enabled them on disk read / write. Would enabling more or...
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Rretrogear reacted to PorkyPiggy's post in the thread Zenith Z-100 can read early 8" 86-DOS disks with
Like.
The lockups! That's the stack overflow I mentioned earlier. Compare my v1 and v2 sources and apply the stack switching code to your BIOS... -
Rretrogear replied to the thread Zenith Z-100 can read early 8" 86-DOS disks.almost like it tries to process an interrupt in the middle of it and can't handle it. Sometimes just DIR C: will lock too. Hmmm it seems...
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Rretrogear replied to the thread Zenith Z-100 can read early 8" 86-DOS disks.yes it does. Here's the .34 C 8" disk. This is where it gets sketchy. From 86DOS 1.14 boot if I try TYPE C:NEWS.DOC it starts displaying...
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Rretrogear replied to the thread Zenith Z-100 can read early 8" 86-DOS disks.It's a little sketchy using this 86-DOS 1.14 os but of course it's just experimental. However, using the Z-DOS/MSDOS 1.25 bios with the...
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Rretrogear replied to the thread Zenith Z-100 can read early 8" 86-DOS disks.That did it !! My hack of your bios can read an 8" SSSD 86-DOS 1.1 disk. This is reading a doc from the 86-DOS v1.1 SN1052 on bitsavers...
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Rretrogear replied to the thread Zenith Z-100 can read early 8" 86-DOS disks.Hmmm how do I get files in and out of this so I can stuff in my tweaked IO.SYS ? I think I got the vDos emulator to assemble your...
