Talk:Hardware abstraction layer
 | The contents of the Hardware abstraction layer page were merged into Hardware abstraction on August 22, 2011 and it now redirects there. For the contribution history and old versions of the merged article please see its history. |
Windows has a hybrid kernel (also known as a macrokernel), not a microkernel. Replaced the word "microkernel" with "kernel". Love4Boobies —Preceding undated comment was added at 12:05, 25 September 2008 (UTC).
the article states: "BSD, Linux, MS-DOS and the Windows NT based operating systems also have a HAL."
but does MS-DOS really have any HAL?
maybe someone more competent could either fix the article or confirm the existence of the abstraction layer in ms-dos...
regards, Blueshade 12:01, 14 December 2005 (UTC)
- Well, MS-DOS was designed so that io.sys serves as an HAL, which is analgios to the CP/M BIOS, which also serves as an HAL. See Non-PC compatible x86 computers. Yuhong 00:38, 30 December 2005 (UTC)
CPM was certainly 'ported' to another architecture (m68k) for atari/ GEM development. I know of no examples of DOS running on other architectures - in fact the use of int 21h and its reliance on CPU registers to pass parameters seems to argue against it. Therefore I would argue that DOS has no HAL (i.e. there is no abstraction present). AFAIK (recall) io.sys is just a wrapper around the standard PC BIOS. I would argue that DOS be removed from this list. Djmwlv 16:05, 7 August 2007 (UTC)
- Read IBM_PC_compatible#Compatibility_issues. Also, usually processor ports require more than just a change in HAL. 65.110.28.195 05:38, 12 August 2007 (UTC)
Removed sentence about HAL and nanokernels
editI've removed the sentence:
Usually, the term HAL is considered close to the nanokernels, though this is not exact.
...as I'm not sure what it means. As far as I can see, HALs have most often been associated with classic kernel architectures.
Maybe this was intended to say something like "Nanokernel architectures usually have a hardware abstraction layer, although this is not always the case" ?--NapoliRoma (talk) 17:23, 22 January 2008 (UTC)
- Take a look at this: http://en.wiki.x.io/wiki/Microkernel#Nanokernel It also says that. (#3) If you're less lazy than me, you might look at the reference cited for that section to see if it mentions it. JordyD (talk) 14:33, 11 November 2009 (UTC)
How to call this
editI wonder know if it's better to call this concept with layer or notCallmejosh (talk) 13:31, 1 July 2008 (UTC)