renesas_tcpip_accept.s

来自「T－kernel Tcp/ip Protocol Stack Sample」· S 代码 · 共 64 行

/*""FILE COMMENT""*************************************************************
*   System Name : RENESAS T-Engine/micro T-Engine series
*   File Name   : renesas_tcpip_accept.S 
*   Version     : 1.00.00
*   Contents    : T-Kernel extended SVC interface library
*               : created from tcpip_svcdef.h
*   Model       : SH7727 T-Engine
*   CPU         : SH7727
*   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 MITSUBISHI ELECTRIC CORP. All Rights Reserved.
*   AND RENESAS TECHNOLOGY CORP. All Rights Reserved.
*   AND RENESAS SOLUTIONS CORP. All Rights Reserved.
*
*   history     : 2004.10.04 Ver.1.00.00
*""FILE COMMENT END""*********************************************************/

#include <machine.h>
#include <tk/sysdef.h>
#include <tcpip_fn.h>

	.text
	.balign	2
	.globl	Csym(renesas_tcpip_accept)
	.type	Csym(renesas_tcpip_accept), @function
Csym(renesas_tcpip_accept):
	mov.l	r7, @-r15
	mov.l	r6, @-r15
	mov.l	r5, @-r15
	mov.l	r4, @-r15
	mov.l	fno, r0
	mov	r15, r4
	trapa	#TRAP_SVC
	cmp/pz	r0
	bf	renesas_tcpip_accept_err
	rts
	add	#4*4, r15

renesas_tcpip_accept_err:
	mov.l	L_mask, r7
	and	r7, r0
	mov.l	L_errno, r7
	mov.l	r0, @r7
	mov.l	L_retno, r0
	rts
	add	#4*4, r15

	.balign	4
fno:	.long	TCPIP_RENESAS_TCPIP_ACCEPT_FN
L_errno:	.long	Csym(renesas_tcpip_errno)
L_retno:	.long	0xFFFFFFFF
L_mask:		.long	0xFFFF