Sujet : Re: [OSDev] How to switch to long mode in x86 CPUs?
De : mutazilah (at) *nospam* gmail.com (Paul Edwards)
Groupes : comp.lang.cDate : 02. Mar 2025, 09:22:46
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vq14gq$mrnn$1@dont-email.me>
References : 1 2 3 4
User-Agent : Microsoft Outlook Express 6.00.2800.1106
"Scott Lurndal" <
scott@slp53.sl.home> wrote in message
news:JdFwP.46247$SZca.36276@fx13.iad..."Paul Edwards" <mutazilah@gmail.com> writes:
"David Brown" <david.brown@hesbynett.no> wrote in message
news:vprtt6$3jah9$1@dont-email.me...
On 27/02/2025 16:57, Ar Rakin wrote:
>
>
Do you consider the concept of a BIOS (as seen as the IBM PC),
"legitimate to use"
>
In the abstract, possibly. But the last half century has
shown that BIOS as an I/O abstraction layer was a bad idea
from the start.
>
and do you consider MSDOS (which uses that
BIOS) to be an operating system?
>
No, MSDOS was, is, will always be a simple program loader.
Plus manages memory.
Plus manages file systems
Plus provides an API
Plus provides a device driver interface
Plus provides a command shell
Plus provides other utilities
It's far from "simple" having to write and debug all that.
Your mileage apparently varies, which is fine.
BFN. Paul.
[OSDev] How to switch to long mode in x86 CPUs?
Re: [OSDev] How to switch to long mode in x86 CPUs?