Windows 95 can't read floppy outside of MS-DOS mode

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Darthron2005
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Joined: Fri Jun 30, 2023 12:25 pm

Windows 95 can't read floppy outside of MS-DOS mode

Post by Darthron2005 »

I installed Windows 95 OSR2.5 in 86box and every single time I try to access the floppy drive it throws either a device not not ready error or a read error. I'm able to the floppy in dos mode without errors so it probably is an compatibility issue with the floppy controller driver. The drives also work normally on Windows 98SE.
Does anyone know how get the floppy drives working again in Windows?

86box config:
[*]86box 4.1.1 [build5634]
[*]Machine Type: Slot1
[*]Machine: [i440BX] AOpen AX6BC
[*]CPU Type: Pentium II (Deshutes)
[*]Speed: 350
[*]Memory: 512MB
[*]Video: [PCI] Matrox Millennium II
[*]Mouse: Microsoft Serial Mouse
[*]Sound card:SoundBlaster 16 PNP
[*]Network mode:PCAP
[*]Network Adapter: [PCI] AMD PCnet-FAST III
[*]HD Controller: Internal controller
[*]FD Controller: Internal controller
[*]10GB IDE dynamic VHD IDE Hard Drive on channel 0.0, ATAPI 48x CD-Rom Drive on channel 1.0

captainlinux8880
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Posts: 381
Joined: Sat Jul 27, 2019 10:11 am

Re: Windows 95 can't read floppy outside of MS-DOS mode

Post by captainlinux8880 »

Darthron2005 wrote:
Sat May 25, 2024 6:26 pm
I installed Windows 95 OSR2.5 in 86box and every single time I try to access the floppy drive it throws either a device not not ready error or a read error. I'm able to the floppy in dos mode without errors so it probably is an compatibility issue with the floppy controller driver. The drives also work normally on Windows 98SE.
Does anyone know how get the floppy drives working again in Windows?

86box config:
[*]86box 4.1.1 [build5634]
[*]Machine Type: Slot1
[*]Machine: [i440BX] AOpen AX6BC
[*]CPU Type: Pentium II (Deshutes)
[*]Speed: 350
[*]Memory: 512MB
[*]Video: [PCI] Matrox Millennium II
[*]Mouse: Microsoft Serial Mouse
[*]Sound card:SoundBlaster 16 PNP
[*]Network mode:PCAP
[*]Network Adapter: [PCI] AMD PCnet-FAST III
[*]HD Controller: Internal controller
[*]FD Controller: Internal controller
[*]10GB IDE dynamic VHD IDE Hard Drive on channel 0.0, ATAPI 48x CD-Rom Drive on channel 1.0
Does this bug exist on other emulators? You can try hard reset the 86box emulator. This may just be a glitch of this emulator.

Battler
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Joined: Sat Aug 19, 2006 8:13 am
Location: Slovenia, Central Europe.
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Re: Windows 95 can't read floppy outside of MS-DOS mode

Post by Battler »

This is a known 86Box bug, caused by the dynamic recompiler running the timers only after every block instructions instead of after every instruction like the interpreter does. Hopefully the instant access floppy drive, when I implement that, fixes it.
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