lfn
serial
ticket/834-toolchain-update
topic/msim-upgrade
topic/simplify-dev-export
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Last change
on this file since ecf083dd was 873c681, checked in by Martin Decky <martin@…>, 15 years ago |
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initial support for early kernel debugging prints
use C comments in C-preprocessed assembler files (to avoid confusion between assembler comments and preprocessor directives)
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-
Property mode
set to
100644
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File size:
469 bytes
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| 1 | .code32
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| 2 | vesa_init_protected:
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| 3 | cld
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| 4 |
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| 5 | /* Initialize stack pointer */
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| 6 | movl $START_STACK, %esp
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| 7 |
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| 8 | /* Kernel data + stack */
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| 9 | movw $gdtselector(KDATA_DES), %cx
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| 10 | movw %cx, %es
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| 11 | movw %cx, %ds
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| 12 | movw %cx, %ss
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| 13 |
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| 14 | /*
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| 15 | * Simics seems to remove hidden part of GS on entering user mode
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| 16 | * when _visible_ part of GS does not point to user-mode segment.
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| 17 | */
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| 18 |
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| 19 | movw $gdtselector(UDATA_DES), %cx
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| 20 | movw %cx, %fs
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| 21 | movw %cx, %gs
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| 22 |
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| 23 | jmpl $gdtselector(KTEXT32_DES), $vesa_meeting_point
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