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kernel: fix for #5350

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git-svn-id: svn://kolibrios.org@6593 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge) 2016-10-14 17:51:58 +00:00
parent cd5d633704
commit 6cbd453d52
2 changed files with 8 additions and 10 deletions
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10
kernel/trunk/kernel.asm
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@ -2944,22 +2944,20 @@ nosb8:
; edx = [top]*65536 + [bottom]
mov eax, [_display.width]
mov ebx, [_display.height]
dec eax
dec ebx
; check [right]
cmp cx, ax
ja .exit
jae .exit
; check [left]
ror ecx, 16
cmp cx, ax
ja .exit
jae .exit
; check [bottom]
cmp dx, bx
ja .exit
jae .exit
; check [top]
ror edx, 16
cmp dx, bx
ja .exit
jae .exit
movzx eax, cx ; [left]
movzx ebx, dx ; [top]

8
kernel/trunk/video/vesa20.inc
View File

@ -2147,20 +2147,20 @@ vesa20_drawbackground_stretch:
mov eax, [BgrDataWidth]
dec eax
xor edx, edx
div dword [screen_workarea.right]
div dword [_display.width]
push eax ; high
xor eax, eax
div dword [screen_workarea.right]
div dword [_display.width]
push eax ; low
; the same for height
mov eax, [BgrDataHeight]
dec eax
xor edx, edx
div dword [screen_workarea.bottom]
div dword [_display.height]
push eax ; high
xor eax, eax
div dword [screen_workarea.bottom]
div dword [_display.height]
push eax ; low
; External loop for all y from start to end