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new sys_sheduler, small optimization

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git-svn-id: svn://kolibrios.org@1271 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Alexey Teplov ( 2009-11-15 10:13:08 +00:00
parent c72ef7ec9e
commit d97477fba6
1 changed files with 30 additions and 15 deletions
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45
kernel/trunk/kernel.asm
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@ -1,6 +1,6 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Copyright (C) KolibriOS team 2004-2008. All rights reserved.
;; Copyright (C) KolibriOS team 2004-2009. All rights reserved.
;; PROGRAMMING:
;; Ivan Poddubny
;; Marat Zakiyanov (Mario79)
@ -18,6 +18,7 @@
;; Johnny_B
;; SPraid (simba)
;; Hidnplayr
;; Alexey Teplov (<Lrz>)
;;
;; Data in this file was originally part of MenuetOS project which is
;; distributed under the terms of GNU GPL. It is modified and redistributed as
@ -3380,26 +3381,40 @@ endg
;3 - rdmsr. Counter in edx. (edx:eax) [esi:edi, edx] => [edx:esi, ecx]. Ret in ebx:eax. Block. ok.
;4 - wrmsr. Counter in edx. (edx:eax) [esi:edi, edx] => [edx:esi, ecx]. Ret in ebx:eax. Block. ok.
;---------------------------------------------------------------------------------------------
sys_sheduler: ;noname & halyavin
cmp eax,0
je shed_counter
cmp eax,2
je perf_control
cmp eax,3
je rdmsr_instr
cmp eax,4
je wrmsr_instr
cmp eax,1
jne not_supported
call change_task ;delay,0
sys_sheduler:
;rewroterd by <Lrz> 15.11.2009
test eax,eax
jz shed_counter ;eax=0
dec eax
jz not_supported ;eax=1
dec eax
jz perf_control ;eax=2
dec eax
jz rdmsr_instr ;eax=3
dec eax
jz wrmsr_instr ;eax=4
; old sys_sheduler ;noname & halyavin
; cmp eax,0
; je shed_counter
; cmp eax,2
; je perf_control
; cmp eax,3
; je rdmsr_instr
; cmp eax,4
; je wrmsr_instr
; cmp eax,1
; jne not_supported
; call change_task ;delay,0
not_supported:
ret
shed_counter:
mov eax,[context_counter]
mov [esp+36],eax
not_supported:
;not_supported:
ret
perf_control:
inc eax ;now eax=3
; inc eax ;now eax=3
add eax,3 ;
cmp ebx,eax
je cache_disable
dec eax