service_isr.s

一个操作系统的源代码

;/** service_isr.s
; **
; ** Original Author: Kasper Verdich Lund
; ** Date: 11.15.99
; **
; ** Description:
; **
; ** 0.0.1 11.15.99 Kasper Verdich Lund - (no comments)
; ** 0.0.2 12.22.99 Guido de Jong - more services implemented
; **
; ** This program is free software, you can redistribute it and/or
; ** modify it under the terms of the GNU General Public License
; ** as published by the Free Software Foundation; either version
; ** 2 of the License, or (at your option) any later version.
; **
; ** This program is distributed in the hope that it will be
; ** useful, but WITHOUT ANY WARRANTY; without even the implied
; ** warranty or MERCHANTABILITY or FITNESS FOR A PARTICULAR
; ** PURPOSE.  See the GNU General Public License for more
; ** details.
; **
; ** You should have received a copy of the GNU General Public
; ** License along with this program; if not, write to the
; ** Free Software Foundation, Inc., 59 Temple Place, Suite 330,
; ** Boston, MA 02111-1307 USA
; **
; *********************************************************Apostle OS**/

	SECTION .text
	
	GLOBAL	__SendTo
	GLOBAL	__ReceiveFrom
	GLOBAL	__CallRemote
	GLOBAL	__SendReceive
	GLOBAL	__Unmap
	GLOBAL	__CreateProcess
	GLOBAL	__Exit
	GLOBAL	__ProcessID
	GLOBAL	__Yield
	GLOBAL	__Sleep

	GLOBAL	__EnableMultithreading
	GLOBAL	__DisableMultithreading
	GLOBAL	__service0x90
	GLOBAL	__service0x91

	EXTERN	SendTo
	EXTERN	ReceiveFrom
	EXTERN	CallRemote
	EXTERN	SendReceive
	EXTERN	Unmap
	EXTERN	CreateProcess
	EXTERN	Exit
	EXTERN	ProcessID
	EXTERN	Yield
	EXTERN	Sleep
	
	EXTERN	EnableMultithreading
	EXTERN	DisableMultithreading
	EXTERN	service0x90
	EXTERN	service0x91

	EXTERN	halt

	
	ALIGN	4
__SendTo:
	push	edi
	push	esi
	push	ebp
	push	ebx
	push	ecx
	push	edx
	push	eax
	mov	ax,0x23
	mov	ds,ax		; reset ds to default
	call	SendTo
	add	esp,+28		; do not pop regs!
	iret

	ALIGN	4
__ReceiveFrom:
	push	edi
	push	esi
	push	ebp
	push	ebx
	push	ecx
	push	edx
	push	eax
	mov	ax,0x23
	mov	ds,ax		; reset ds to default
	call	ReceiveFrom
	add	esp,+28		; do not pop regs
	iret

	ALIGN	4
__CallRemote:
	push	edi
	push	esi
	push	ebp
	push	ebx
	push	ecx
	push	edx
	push	eax
	mov	ax,0x23
	mov	ds,ax		; reset ds to default
	call	CallRemote
	add	esp,+28		; do not pop regs!
	iret

	ALIGN	4
__SendReceive:
	push	edi
	push	esi
	push	ebp
	push	ebx
	push	ecx
	push	edx
	push	eax
	mov	ax,0x23
	mov	ds,ax		; reset ds to default
	call	SendReceive
	add	esp,+28		; do not pop regs
	iret

	ALIGN	4
__Unmap:
	push	esi
	push	eax
	mov	ax,0x23
	mov	ds,ax		; reset ds to default
	call	Unmap
	add	esp,+8		; do not pop regs
	iret

	ALIGN	4
__CreateProcess:
	push	esi
	push	eax
	mov	ax,0x23
	mov	ds,ax		; reset ds to default
	call	CreateProcess
	add	esp,+8		; do not pop regs
	iret

	ALIGN	4
__Exit:
	mov	ax,0x23
	mov	ds,ax		; reset ds to default
	call	Exit
	iret

	ALIGN	4
__ProcessID:
	mov	ax,0x23
	mov	ds,ax		; reset ds to default
	call	ProcessID
	iret

	ALIGN	4
__Yield:
	push	eax
	push	ecx
	push	edx
	push	ebx
	push	ebp
	push	esi
	push	edi
	mov	ax,0x23
	mov	ds,ax		; reset ds to default
	call	Yield
	pop	edi
	pop	esi
	pop	ebp
	pop	ebx
	pop	edx
	pop	ecx
	pop	eax
	call	halt		; this shouldn't happen :-(

	ALIGN	4
__Sleep:
	push	eax
	mov	ax,0x23
	mov	ds,ax		; reset ds to default
	call	Sleep
	add	esp,+4		; do not pop regs
	iret


	ALIGN	4
__EnableMultithreading:
	pusha
	mov	ax,0x23
	mov	ds,ax		; reset ds to default
	call	EnableMultithreading
	popa
	iret

	ALIGN	4
__DisableMultithreading:
	mov	ax,0x23
	mov	ds,ax		; reset ds to default
	call	DisableMultithreading
	iret
		
	ALIGN	4
__service0x90:
	mov	ax,0x23
	mov	ds,ax		; reset ds to default
	call	service0x90
	iret

	ALIGN	4
__service0x91:
	mov	ax,0x23	
	mov	ds,ax		; reset ds to default
	call	service0x91
	iret