KolibriOS/kolibrios
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Fixed sys_msg_board (fn 63) to not rely on cross_order and take arguments in original order.

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git-svn-id: svn://kolibrios.org@3614 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
shikhin
2013-06-07 14:12:54 +00:00
parent 37b9069351
commit d4216492e1
10 changed files with 53 additions and 46 deletions
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31
kernel/trunk/kernel.asm
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@@ -4680,8 +4680,8 @@ sys_msg_board_str:
@@:
cmp [esi], byte 0
je @f
mov eax, 1
movzx ebx, byte [esi]
mov ebx, 1
movzx ecx, byte [esi]
call sys_msg_board
inc esi
jmp @b
@@ -4721,9 +4721,9 @@ sys_msg_board_dword:
cmp al, 10
sbb al, 69h
das
mov bl, al
xor eax, eax
inc eax
mov cl, al
xor ebx, ebx
inc ebx
call sys_msg_board
pop eax
pop ecx
@@ -4740,8 +4740,12 @@ endg
sys_msg_board:
; eax=1 : write : bl byte to write
; eax=2 : read : ebx=0 -> no data, ebx=1 -> data in al
; ebx=1 : write : bl byte to write
; ebx=2 : read : ebx=0 -> no data, ebx=1 -> data in al
push eax ebx ; Save eax and ebx, since we're restoring their order required.
mov eax, ebx
mov ebx, ecx
mov ecx, [msg_board_count]
cmp eax, 1
@@ -4799,24 +4803,29 @@ end if
inc ecx
and ecx, msg_board_data_size - 1
mov [msg_board_count], ecx
pop ebx eax
ret
.smbl1:
cmp eax, 2
jne .smbl2
test ecx, ecx
jz .smbl21
add esp, 8 ; Returning data in ebx and eax, so no need to restore them.
mov eax, msg_board_data+1
mov ebx, msg_board_data
movzx edx, byte [ebx]
call memmove
dec [msg_board_count]
mov [esp + 36], edx ;eax
mov [esp + 24], dword 1
mov [esp + 32], edx ;eax
mov [esp + 20], dword 1
ret
.smbl21:
mov [esp+36], ecx
mov [esp+24], ecx
mov [esp+32], ecx
mov [esp+20], ecx
.smbl2:
pop ebx eax
ret
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