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Fix f.24 for r.4700

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git-svn-id: svn://kolibrios.org@4711 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Marat Zakiyanov (Mario79)
2014-03-28 20:04:31 +00:00
parent 09143c58e9
commit be1fff9c56
6 changed files with 55 additions and 41 deletions
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45
kernel/trunk/kernel.asm
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@@ -5056,12 +5056,37 @@ syscall_getscreensize: ; GetScreenSize
;-----------------------------------------------------------------------------
align 4
syscall_cdaudio: ; CD
; ECX - position of CD/DVD-drive
; from 0=Primary Master to 3=Secondary Slave for first IDE contr.
; from 4=Primary Master to 7=Secondary Slave for second IDE contr.
; from 8=Primary Master to 11=Secondary Slave for third IDE contr.
cmp ecx, 11
ja .exit
mov eax, ecx
shr eax, 2
lea eax, [eax*5]
mov al, [eax+DRIVE_DATA+1]
push ecx ebx
mov ebx, ecx
and ebx, 11b
shl ebx, 1
mov cl, 6
sub cl, bl
shr al, cl
test al, 2 ; it's not an ATAPI device
pop ebx ecx
jz .exit
cmp ebx, 4
je .eject
cmp ebx, 5
je .load
;--------------------------------------
.exit:
ret
;--------------------------------------
.load:
@@ -5082,22 +5107,6 @@ syscall_cdaudio: ; CD
mov ebx, ecx
inc ebx
mov [cdpos], ebx
mov eax, ebx
mov ebx, ecx
and ebx, 11b
shl ebx, 1
mov cl, 8
sub cl, bl
dec eax
shr eax, 2
lea eax, [eax*5]
mov al, [eax+DRIVE_DATA+1]
shr al, cl
test al, 2 ; it's not an ATAPI device
jz .ret
mov eax, ecx
shr eax, 1
@@ -5108,8 +5117,6 @@ syscall_cdaudio: ; CD
and eax, 1
mov [DiskNumber], al
call reserve_cd_channel
;--------------------------------------
.ret:
ret
;--------------------------------------
.free: