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remove reallocation in mbr init

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also reenable interupts in the init block
This commit is contained in:
Elaina Claus
2024-09-21 11:45:22 -04:00
parent dafac41102
commit ee65b6acc5
1 changed files with 1 additions and 6 deletions
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7
src/mbr/mbr.nasm
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@@ -34,11 +34,7 @@ init:
mov ss, ax ; Set Stack Segment to 0 mov ss, ax ; Set Stack Segment to 0
mov sp, STACK_START mov sp, STACK_START
sti
mov ch, 0x01 ; 256 WORDs in MBR (512 bytes), 0x0100 in cx
mov si, 0x7C00 ; Current MBR Address (loaded here by BIOS)
mov di, MBR_ENTRY ; New MBR Address (our new relocation address)
rep movsw ; copy 512 bytes from 0x0000:7c00 to 0x0000:0600
jmp 0:main jmp 0:main
nop nop
@@ -49,7 +45,6 @@ init:
%include "errors.inc" %include "errors.inc"
main: main:
sti
mov [boot_drive], dl ; BIOS passes drive number in DL mov [boot_drive], dl ; BIOS passes drive number in DL
.check_disk: .check_disk: