Unofficial Austrumi Linux for English users forum golf & dvd

A Latvian and english Linux tiny operating system. used by golf & dvd lovers

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#1 2012-12-17 07:37:55

atang1
Administrator
Registered: 2006-03-30
Posts: 2705

Linux kernels to drop i386 cpu instructions.

i386 is the backward compatibility in Linux kernels. The simple instruction set and 16 bit made Linux usable with ARM cpu. It also is trouble free for ext2 file system, without support for writeback function.

i486 is still supported 32 bit, but it came with or without floating point hardware; Linux has soft floating point built in. i586 begins the trouble of writeback corruption of file systems.

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2012-12-17 07:37:55

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#2 2012-12-24 18:39:36

atang1
Administrator
Registered: 2006-03-30
Posts: 2705

Re: Linux kernels to drop i386 cpu instructions.

In the mean time, people like Barry Kauler got excited by minimalistic operating system. It maybe foolish to limit Quirky6 operating system to i986. It has to use 50 mB of codes to include the use of i386 computer systems.

The difference believe me, is only in using less graphics and more text for mobile devices. You can still display TV screens of less resolution using mpeg4/h.264(mjpeg+mp3).

So, a minimalistic operating system(mobile device) with a color display can be quite entertaining if designed properly.

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#3 2013-02-22 11:06:38

atang1
Administrator
Registered: 2006-03-30
Posts: 2705

Re: Linux kernels to drop i386 cpu instructions.

i386sx and dx are 16 bit cpu. Data is 16 bits accross and memory is only 16 bits. It also does not have floating point hardware. Linux kernel supported them with software floating point which had to be disabled fori486 or better.

i386 functions does not have write back hardware, so file systems do not get corupted. To avoid file system corruption, lZinux has to use i486 now and avoid i586/ i686.

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