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|    alt.os.development    |    Operating system development chatter    |    4,255 messages    |
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|    Message 4,061 of 4,255    |
|    Paul Edwards to James Harris    |
|    Re: com port    |
|    19 Dec 23 17:16:25    |
      From: mutazilah@gmail.com              On 13/12/23 04:12, James Harris wrote:       > On 29/08/2022 19:44, muta...@gmail.com wrote:       >> On Monday, August 29, 2022 at 9:57:57 AM UTC+8, Joe Monk wrote:       >>>> The big problem with UEFI is that it is 64 bit       >>>> when my os and compiler are 32 bit as they       >>>> have been for 3 decades.       >>> No, there is 32 bit UEFI also.       >>       >> I believe it doesn't exist on most new machines.       >>       >> So all software that transitioned from       >> bios to 32 bit UEFI has been obsoleted       >> as part of a scam.       >       > Where the processor supports 32-bit as well as 64-bit modes, 64-bit UEFI       > boot code can, after loading a 32-bit OS, switch to 32-bit mode and       > start the OS.       >       > IOW you can still use your 32-bit OS via 64-bit UEFI boot.              On 13/12/23 04:12, James Harris wrote:        > On 29/08/2022 19:44, muta...@gmail.com wrote:        >> On Monday, August 29, 2022 at 9:57:57 AM UTC+8, Joe Monk wrote:        >>>> The big problem with UEFI is that it is 64 bit        >>>> when my os and compiler are 32 bit as they        >>>> have been for 3 decades.        >>> No, there is 32 bit UEFI also.        >>        >> I believe it doesn't exist on most new machines.        >>        >> So all software that transitioned from        >> bios to 32 bit UEFI has been obsoleted        >> as part of a scam.        >        > Where the processor supports 32-bit as well as 64-bit modes, 64-bit UEFI        > boot code can, after loading a 32-bit OS, switch to 32-bit mode and        > start the OS.        >        > IOW you can still use your 32-bit OS via 64-bit UEFI boot.              If I had made my OS do 32-bit UEFI calls instead of 16-bit       BIOS calls, as advertised, then all that work would have       been wasted. 16-bit BIOS was more resilient. ie not       requiring a rewrite as 64-bit UEFI caused.              BFN. Paul.              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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