calluserprog.s

T－Kernel Shell Sample

/*""FILE COMMENT""*************************************************************
*   System Name : RENESAS micro T-Engine
*   File Name   : calluserprog.S
*   Version     : 1.01.00
*   Contents    : user program entry for "LODSPG" or "UNLSPG"
*   Model       : RENESAS T-Engine/uT-Engine
*   CPU         : RENESAS T-Engine Series CPU
*   Compiler    : GNU
*   OS          : T-Kernel
*
*   note        : The Software is being delivered to you "AS IS" 
*               : and Renesas,whether explicitly or implicitly makes  
*               : no warranty as to its Use or performance. 
*               : RENESAS AND ITS SUPPLIER DO NOT AND CANNOT WARRANT 
*               : THE PERFORMANCE OR RESULTS YOU MAY OBTAIN  BY USING 
*               : THE SOFTWARE. AS TO ANY MATTER INCLUDING WITHOUT 
*               : LIMITATION NONINFRINGEMENT OF THIRD PARTY RIGHTS,
*               : MERCHANTABILITY, INTEGRATION, SATISFACTORY QUALITY, 
*               : OR FITNESS FOR ANY PARTICULAR PURPOSE.
*
*   Copyright (c) 2004-2006 RENESAS TECHNOLOGY CORP. All Rights Reserved.
*   AND RENESAS SOLUTIONS CORP. All Rights Reserved.
*
*   history     : 2004.10.01 ver1.00.00
*               : 2006.02.01 ver1.01.00
*""FILE COMMENT END""*********************************************************/

#include <machine.h>

/*""FUNC COMMENT""*******************************************************
 * ID          : 
 * Outline     : User Program Entry(Assembler)
 *-----------------------------------------------------------------------
 * Include     :
 *-----------------------------------------------------------------------
 * Definition  : ER CallUserProgram( INT ac, UB *av[] )
 *-----------------------------------------------------------------------
 * Function    : User Program Entry(Assembler)
 *             : This is entry of "LODSPG" or "UNLSPG" command
 *-----------------------------------------------------------------------
 * Argument    : INT ac(R0) 
 *             : UB  *av(R1)
 *----------------------------------------------------------------------- 
 * Return      : error code(R0)
 *-----------------------------------------------------------------------
 * Input       : None 
 * Output      : None 
 *-----------------------------------------------------------------------
 * Used Func   : None
 *-----------------------------------------------------------------------
 * Notice      : None
 *""FUNC COMMENT END""***************************************************/
	.text
	.balign	4
	.globl	Csym(CallUserProgram)
Csym(CallUserProgram):
	st	lr,  @-sp	// Save register 
	st	fp,  @-sp
	st	r12, @-sp
	st	r11, @-sp
	st	r10, @-sp
	st	r9,  @-sp
	st	r8,  @-sp

	jl	r2		// call entry(ac, av)

	ld	r8,  @sp+	// Restore register 
	ld	r9,  @sp+
	ld	r10, @sp+
	ld	r11, @sp+
	ld	r12, @sp+
	ld	fp,  @sp+
	ld	lr,  @sp+
	jmp	lr