86Box. Emulating MFM/RLL drive with Dos 3.30

Emulation of old PCs, PC hardware, or PC peripherals.

86Box. Emulating MFM/RLL drive with Dos 3.30

Postby gmc » 2018-4-13 @ 21:10

Trying to get 86Box v2.0 working with the following settings:

Code: Select all

[Machine]
machine = amixt
mem_size = 640
cpu_use_dynarec = 0
cpu = 1

[Video]
gfxcard = cga
video_speed = 0

[Other peripherals]
hdc = mfm_xt

[Hard disks]
hdd_01_parameters = 17, 4, 306, 0, mfm
hdd_01_fn = C:\test.img
hdd_01_mfm_channel = 1


Its booting up from a dos 3.30 disk but when I run fdisk I get no fixed disks present.

Any ideas where I'm going wrong?
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Re: 86Box. Emulating MFM/RLL drive with Dos 3.30

Postby Jo22 » 2018-4-13 @ 22:04

gmc wrote:Its booting up from a dos 3.30 disk but when I run fdisk I get no fixed disks present.

Any ideas where I'm going wrong?


No, no ideas, sorry.. :depressed: ' Have the same problem with current release of PCem..
XTIDE emulation works fine, but neither selecting the AT Host Interface, nor the MFM/RLL emulation works for me.
In every BIOS, from 286 to 486, they both fail (auto detection feature of AMI BIOSes reports no drives, either).
- I'm using small images, smaller than 500MB and all of them do use valid CHS geometry.

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Re: 86Box. Emulating MFM/RLL drive with Dos 3.30

Postby gmc » 2018-4-14 @ 17:06

Dont see to be having any luck here.

Tried setting HD controller to XT IDE. Then created a new disk 10MB, bus XT IDE. Click Ok and it says it will reset 86Box but then the window closes. No error.

Rerunning 86box again and the hard drive I setup is missing.
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Re: 86Box. Emulating MFM/RLL drive with Dos 3.30

Postby gmc » 2018-4-14 @ 19:17

Thought I'd try Pcem and got it working fist time. :happy:
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Re: 86Box. Emulating MFM/RLL drive with Dos 3.30

Postby Jo22 » 2018-4-15 @ 10:55

Glad it worked! :)
Though 86Box is also nice to have.
Maybe in your version, XTIDE BIOS was missing ?
"Time, it seems, doesn't flow. For some it's fast, for some it's slow.
In what to one race is no time at all, another race can rise and fall..." - The Minstrel

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Re: 86Box. Emulating MFM/RLL drive with Dos 3.30

Postby SA1988 » 2018-4-18 @ 18:18

PM Battler for a new binary, it works here too in 86box. You most likely have an older build.
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Re: 86Box. Emulating MFM/RLL drive with Dos 3.30

Postby Battler » 2018-4-19 @ 16:24

Yes, I got this fixed now in the code that I have not yet commited (there's still more things pending for me to do before I commit), you can PM me for a binary.
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