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init_page_map fixed

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git-svn-id: svn://kolibrios.org@1331 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Evgeny Grechnikov (Diamond) 2009-12-25 22:47:29 +00:00
parent 90bb6a20e2
commit 3bfcc9b988
1 changed files with 9 additions and 8 deletions
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17
kernel/trunk/init.inc
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@ -205,19 +205,18 @@ proc init_page_map
mov edi, [ebx]
shr edi, 12 ; edi = first page
mov eax, edi
neg eax
shr edi, 5
shl edi, 2
add edi, sys_pgmap-OS_BASE
and eax, 31
jz .startok
sub ecx, eax
add ecx, eax
sub ecx, 32
jbe .onedword
push ecx
mov ecx, eax
xor eax, eax
inc eax
or eax, -1
shl eax, cl
dec eax
or [edi], eax
add edi, 4
pop ecx
@ -228,15 +227,17 @@ proc init_page_map
rep stosd
pop ecx
and ecx, 31
not eax
neg eax
shl eax, cl
dec eax
or [edi], eax
jmp .next
.onedword:
add ecx, eax
add ecx, 32
sub ecx, eax
@@:
dec eax
bts [edi], eax
inc eax
loop @b
.next:
add ebx, 20