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  → /kernel/trunk/core @ 473

  → /kernel/trunk/core/ @ 477

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Regard whitespace Rev 473 → Rev 477

/kernel/trunk/core/syscall.inc
48,25 → 48,13
;; ;;
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;uglobal
;times 100 db ?
;sysenter_stack:
;endg
align 32
SYSENTER_VAR equ 0
sysenter_entry:
; Íàñòðàèâàåì ñòåê
; cli sysenter clear IF
; push eax
; mov eax, [ss:CURRENT_TASK]
; shl eax, 8
; mov eax, [ss:SLOT_BASE + eax + APPDATA.pl0_stack]
; lea esp, [eax + RING0_STACK_SIZE] ; configure ESP
; mov eax, [ss:sysenter_stack - 4] ; eax - original eax, from app
mov esp, [ss:tss._esp0]
sti
push ebp ; save app esp + 4
mov ebp, [ebp] ; ebp - original ebp
;------------------
pushad
cld
85,8 → 73,13
popad
;------------------
mov edx, [SYSENTER_VAR] ; eip
mov ecx, [SYSENTER_VAR + 4] ; esp
xchg ecx, [ss:esp] ; â âåðøèí ñòåêà - app ecx, ecx - app esp + 4
sub ecx, 4
xchg edx, [ecx] ; edx - return point, & save original edx
push edx
mov edx, [ss:esp + 4]
mov [ecx + 4], edx ; save original ecx
pop edx
sysexit
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