Changeset e515167d in mainline for arch/amd64/src/asm_utils.S


Ignore:
Timestamp:
2005-09-03T09:52:47Z (19 years ago)
Author:
Ondrej Palkovsky <ondrap@…>
Branches:
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
be56c17
Parents:
5a5ed25
Message:

Added basic FPU context (not working).
Added CPU utilities from ia32
Fixed bug in vm.c that wanted PTL to be mapped in bottom memory.

File:
1 edited

Legend:

Unmodified
Added
Removed

  • arch/amd64/src/asm_utils.S

    r5a5ed25 re515167d  
    5656       
    5757
     58# THIS IS USERSPACE CODE
     59.global utext
     60utext:
     61        xor %ax,%ax;
     62        mov %ax,%ds;
     63        mov %ax,%es;
     64        mov %ax,%fs;
     65        mov %ax,%gs;
     660:
     67        int $48
     68        jmp 0b
     69        # not reached
     70utext_end:
     71
     72.data
     73.global utext_size
     74utext_size:
     75        .long utext_end - utext
     76
     77       
    5878## Determine CPUID support
    5979#
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