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boot.asm comments

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git-svn-id: svn://anubis/hos/trunk@41 5b3e749e-e535-0410-8002-a9bb6afbdfca
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josh 2009-07-05 16:38:47 +00:00
parent 54b42c0226
commit 784978b131
1 changed files with 6 additions and 1 deletions
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7
kernel/boot/boot.asm
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@ -70,7 +70,7 @@ segmented_start:
mov [CONSOLE_MEMORY+160*8+1*2], cx mov [CONSOLE_MEMORY+160*8+1*2], cx
add ebx, VIRTUAL_OFFSET add ebx, VIRTUAL_OFFSET
push eax push eax ; multiboot bootloader magic value
push ebx ; pointer to multiboot info struct push ebx ; pointer to multiboot info struct
call k_bootstrap call k_bootstrap
add esp, 8 add esp, 8
@ -78,6 +78,11 @@ segmented_start:
mov cx, 0x0700 + 'e' mov cx, 0x0700 + 'e'
mov [CONSOLE_MEMORY+160*8+4*2], cx mov [CONSOLE_MEMORY+160*8+4*2], cx
; at this point paging is still disabled but the PDBR is valid and
; points to a page directory that has all of RAM mapped to the
; beginning of the kernel's virtual address space, and the entire
; kernel mapped in above 0xE000_0000.
idle_loop: idle_loop:
hlt hlt
jmp idle_loop jmp idle_loop