start64.S revision 1.1.2.2
1 1.1.2.2 skrll /* $NetBSD: start64.S,v 1.1.2.2 2004/08/12 11:41:14 skrll Exp $ */ 2 1.1.2.2 skrll 3 1.1.2.2 skrll /*- 4 1.1.2.2 skrll * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 1.1.2.2 skrll * All rights reserved. 6 1.1.2.2 skrll * 7 1.1.2.2 skrll * This code is derived from software contributed to The NetBSD Foundation 8 1.1.2.2 skrll * by Jonathan Stone, Michael Hitch and Simon Burge. 9 1.1.2.2 skrll * 10 1.1.2.2 skrll * Redistribution and use in source and binary forms, with or without 11 1.1.2.2 skrll * modification, are permitted provided that the following conditions 12 1.1.2.2 skrll * are met: 13 1.1.2.2 skrll * 1. Redistributions of source code must retain the above copyright 14 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer. 15 1.1.2.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer in the 17 1.1.2.2 skrll * documentation and/or other materials provided with the distribution. 18 1.1.2.2 skrll * 3. All advertising materials mentioning features or use of this software 19 1.1.2.2 skrll * must display the following acknowledgement: 20 1.1.2.2 skrll * This product includes software developed by the NetBSD 21 1.1.2.2 skrll * Foundation, Inc. and its contributors. 22 1.1.2.2 skrll * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1.2.2 skrll * contributors may be used to endorse or promote products derived 24 1.1.2.2 skrll * from this software without specific prior written permission. 25 1.1.2.2 skrll * 26 1.1.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1.2.2 skrll * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1.2.2 skrll * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.1.2.2 skrll * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.1.2.2 skrll * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1.2.2 skrll * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1.2.2 skrll * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1.2.2 skrll * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1.2.2 skrll * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1.2.2 skrll * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1.2.2 skrll * POSSIBILITY OF SUCH DAMAGE. 37 1.1.2.2 skrll */ 38 1.1.2.2 skrll 39 1.1.2.2 skrll /* 40 1.1.2.2 skrll * Copyright (c) 1992, 1993 41 1.1.2.2 skrll * The Regents of the University of California. All rights reserved. 42 1.1.2.2 skrll * 43 1.1.2.2 skrll * This code is derived from software contributed to Berkeley by 44 1.1.2.2 skrll * Ralph Campbell. 45 1.1.2.2 skrll * 46 1.1.2.2 skrll * Redistribution and use in source and binary forms, with or without 47 1.1.2.2 skrll * modification, are permitted provided that the following conditions 48 1.1.2.2 skrll * are met: 49 1.1.2.2 skrll * 1. Redistributions of source code must retain the above copyright 50 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer. 51 1.1.2.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 52 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer in the 53 1.1.2.2 skrll * documentation and/or other materials provided with the distribution. 54 1.1.2.2 skrll * 3. Neither the name of the University nor the names of its contributors 55 1.1.2.2 skrll * may be used to endorse or promote products derived from this software 56 1.1.2.2 skrll * without specific prior written permission. 57 1.1.2.2 skrll * 58 1.1.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 59 1.1.2.2 skrll * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 1.1.2.2 skrll * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 1.1.2.2 skrll * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 62 1.1.2.2 skrll * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63 1.1.2.2 skrll * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 64 1.1.2.2 skrll * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 65 1.1.2.2 skrll * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 66 1.1.2.2 skrll * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 1.1.2.2 skrll * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 1.1.2.2 skrll * SUCH DAMAGE. 69 1.1.2.2 skrll * 70 1.1.2.2 skrll * @(#)start.s 8.2 (Berkeley) 1/21/94 71 1.1.2.2 skrll */ 72 1.1.2.2 skrll 73 1.1.2.2 skrll /* 74 1.1.2.2 skrll * start.s - 75 1.1.2.2 skrll * 76 1.1.2.2 skrll * Contains code that is the first executed at boot time. 77 1.1.2.2 skrll * 78 1.1.2.2 skrll * Copyright (C) 1989 Digital Equipment Corporation. 79 1.1.2.2 skrll * Permission to use, copy, modify, and distribute this software and 80 1.1.2.2 skrll * its documentation for any purpose and without fee is hereby granted, 81 1.1.2.2 skrll * provided that the above copyright notice appears in all copies. 82 1.1.2.2 skrll * Digital Equipment Corporation makes no representations about the 83 1.1.2.2 skrll * suitability of this software for any purpose. It is provided "as is" 84 1.1.2.2 skrll * without express or implied warranty. 85 1.1.2.2 skrll * 86 1.1.2.2 skrll * from: Header: /sprite/src/boot/decprom/ds3100.md/RCS/start.s, 87 1.1.2.2 skrll * v 1.1 90/02/16 16:19:39 shirriff Exp SPRITE (DECWRL) 88 1.1.2.2 skrll */ 89 1.1.2.2 skrll 90 1.1.2.2 skrll #include <mips/asm.h> 91 1.1.2.2 skrll #include <mips/cpuregs.h> 92 1.1.2.2 skrll 93 1.1.2.2 skrll # .extern ARCBIOS, 4 94 1.1.2.2 skrll 95 1.1.2.2 skrll .globl start 96 1.1.2.2 skrll start: 97 1.1.2.2 skrll .set noreorder 98 1.1.2.2 skrll #ifdef __GP_SUPPORT__ 99 1.1.2.2 skrll dla gp, _C_LABEL (_gp) 100 1.1.2.2 skrll #endif 101 1.1.2.2 skrll daddi sp, - (CALLFRAME_SIZ * 2) 102 1.1.2.2 skrll sd ra, CALLFRAME_RA * 2(sp) # Save RA 103 1.1.2.2 skrll sd a0, 0(sp) # save argc 104 1.1.2.2 skrll sd a1, 8(sp) # save argv 105 1.1.2.2 skrll sd a2, 16(sp) # save envp 106 1.1.2.2 skrll dla v0, 0xa800000000001000 # ARCBIOS_SPB 107 1.1.2.2 skrll dla a0, _C_LABEL (edata) # clear BSS 108 1.1.2.2 skrll ld v0, 64(v0) # FirmwareVector (64-bit offset) 109 1.1.2.2 skrll move a1, zero 110 1.1.2.2 skrll sd v0, _C_LABEL(ARCBIOS) # save ARCBIOS 111 1.1.2.2 skrll dla a2, _C_LABEL (end) 112 1.1.2.2 skrll jal _C_LABEL(memset) # memset(edata, 0, end - edata) 113 1.1.2.2 skrll dsubu a2, a2, a0 114 1.1.2.2 skrll ld a0, 0(sp) # restore argc 115 1.1.2.2 skrll ld a1, 8(sp) # restore argv 116 1.1.2.2 skrll jal _C_LABEL(main) # main(argc, argv) 117 1.1.2.2 skrll ld a2, 16(sp) # restore envp 118 1.1.2.2 skrll ld ra, CALLFRAME_RA * 2(sp) # restore RA 119 1.1.2.2 skrll j ra # return to PROM 120 1.1.2.2 skrll daddi sp, CALLFRAME_SIZ * 2 # BDslot: adjust stack 121 1.1.2.2 skrll 122 1.1.2.2 skrll .globl _rtt 123 1.1.2.2 skrll _rtt: 124 1.1.2.2 skrll j ra # XXXX return to PROM? 125 1.1.2.2 skrll 126 1.1.2.2 skrll .data 127 1.1.2.2 skrll .global ARCBIOS 128 1.1.2.2 skrll ARCBIOS: .data 0 129
Indexes created Thu Oct 23 22:10:10 GMT 2025