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flat assembler > OS Construction > disk io under windows 10 64-bit

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Hack1532



Joined: 20 Feb 2016
Posts: 3
disk io under windows 10 64-bit
I've just modified my bootstrap i'm currently working on and a the 16-bit *.com file I wrote to manage disks, sectors, usb, fire wire ect no longer works (compatability issue). Does any one know of any windows 10 API that I could use, or point me to an app that can write/read sectors. hehe

thanks Hack1532
Post 20 Feb 2016, 22:16
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BAiC



Joined: 22 Mar 2011
Posts: 254
Location: California
FYI: non-Windows OSes are never running at the same time as Windows (regardless of the version). you need to include a driver for each of the device types you want to support. due to the nature of a "hobby" OS you're not gonna find anything you can just "plug in". BTW: NOTHING that works in Windows is going to be usable in your OS without heavy modifications to it.
Post 21 Feb 2016, 18:18
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Hack1532



Joined: 20 Feb 2016
Posts: 3
raw sector i/o
I solved the problem by booting Mini-XP 32-bit from USB. My 16-bit *.COM files work correctly.
ie: MAKEBOOT.COM
RAWWRITE.COM

I was able to build my little OS just fine under 32-bit Win OS,Laughing
Post 21 Feb 2016, 23:22
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 14929
Location: 6EQUJ5
You can open a file name called "\\.\PhysicalDriveN" where N is the drive number and read/write data to that. Writing should be fine for all non-system drives in Win7 and up. For XP writing also works on the system dive so you need to be careful you don't kill your boot HDD.
Post 21 Feb 2016, 23:26
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Trinitek



Joined: 06 Nov 2011
Posts: 256
You need to be careful about writing to your boot HDD on 7, too. I was trying to write a floppy image to a USB floppy with some third party software, and it overwrote my boot HDD instead. Luckily the partitions were still intact.
Post 22 Feb 2016, 04:05
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