cpuid.s

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

;/* ***** BEGIN LICENSE BLOCK ***** 
; * Version: RCSL 1.0/RPSL 1.0 
; *  
; * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
; *      
; * The contents of this file, and the files included with this file, are 
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; * Version 1.0 (the "RPSL") available at 
; * http://www.helixcommunity.org/content/rpsl unless you have licensed 
; * the file under the RealNetworks Community Source License Version 1.0 
; * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
; * in which case the RCSL will apply. You may also obtain the license terms 
; * directly from RealNetworks.  You may not use this file except in 
; * compliance with the RPSL or, if you have a valid RCSL with RealNetworks 
; * applicable to this file, the RCSL.  Please see the applicable RPSL or 
; * RCSL for the rights, obligations and limitations governing use of the 
; * contents of the file.  
; *  
; * This file is part of the Helix DNA Technology. RealNetworks is the 
; * developer of the Original Code and owns the copyrights in the portions 
; * it created. 
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; * This file, and the files included with this file, is distributed and made 
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; * ***** END LICENSE BLOCK ***** */ 

;/* assembly.s
; * 
; * the assembly routines are written in this separate .s file because EVC++ won't inline...
; *
; * Notes on APCS (ARM procedure call standard):
; *  - first four arguments are in r0-r3
; *  - additional argumets are pushed onto stack in reverse order
; *  - return value goes in r0
; *  - routines can overwrite r0-r3, r12 without saving
; *  - other registers must be preserved with stm/ldm commands
; * 
; * Equivalent register names:
; *
; * r0  r1  r2  r3  r4  r5  r6  r7  r8  r9  r10 r11 r12 r13 r14 r15
; * ---------------------------------------------------------------
; * a1  a2  a3  a4  v1  v2  v3  v4  v5  v6  sl  fp  ip  sp  lr  pc
; */

	INCLUDE kxarm.h
	TEXTAREA

; int cpu_id(void)
	LEAF_ENTRY cpu_id

	mrc p15, 0, r0, c0, c0, 0
	mov pc, lr

	ENTRY_END cpu_id

	END