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|    alt.os.development    |    Operating system development chatter    |    4,255 messages    |
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|    Message 2,573 of 4,255    |
|    mutazilah@gmail.com to Joe Monk    |
|    Re: drivers    |
|    13 Jul 21 18:02:13    |
      From: muta...@gmail.com              On Wednesday, July 14, 2021 at 10:10:24 AM UTC+10, Joe Monk wrote:              > > As far as I can tell, a BOOTX64.EFI containing maybe       > > 3000 lines of code, mainly 64-bit C code, but maybe       > > 1000 lines of 16-bit assembler and C, will do what I       > > want, which is to restore a mini-BIOS on a UEFI-only       > > machine. I only need a few interrupts - 13H, 10H       > > and 14H.              > BIOS and UEFI are pretty much mutually exclusive.              > For instance, you mention INT 14h - that has been replaced       > in UEFI with the Serial Protocol ... an example serial protocol       > driver can be found here              And what is preventing my BOOTX64.EFI from hooking       INT 14H (RM16), switching to long mode, and calling the       UEFI Serial Protocol?              BFN. Paul.              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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