/* * ========== Copyright Header Begin ========================================== * * OpenSPARC T2 Processor File: ifu_basic_bicc.s * Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved * 4150 Network Circle, Santa Clara, California 95054, U.S.A. * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * 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; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * 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 * * For the avoidance of doubt, and except that if any non-GPL license * choice is available it will apply instead, Sun elects to use only * the General Public License version 2 (GPLv2) at this time for any * software where a choice of GPL license versions is made * available with the language indicating that GPLv2 or any later version * may be used, or where a choice of which version of the GPL is applied is * otherwise unspecified. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * * * ========== Copyright Header End ============================================ */ #include "defines.h" #include "old_boot.s" !SECTION .MAIN TEXT_VA = 0xfffffffff0000000 !attr_text { ! Name=.MAIN, ! hypervisor !} .text .global main main: ! 1st fetch should be from RSTVaddr+0x20 illtrap illtrap illtrap illtrap illtrap illtrap illtrap illtrap ! First intsruction fetched should be from here RSTVaddr+0x20 ! First set up some registers with values .. ! Now do some useful stuff .. start: add %g0, 0x0000, %g1 add %g0, 0x0000, %g2 add %g0, 0x0000, %g3 add %g0, 0x0000, %g4 add %g0, 0x0000, %g5 add %g0, 0x0000, %g6 add %g0, 0x0000, %g7 addcc %g0, 0x0000, %g7 B0: addcc %g0, 0x0001, %g2 ba B1 addcc %g0, 0x1fff, %g1 inc %g7 B1: addcc %g0, 0x0001, %g2 bne B2 addcc %g0, 0x1fff, %g1 inc %g7 B2: addcc %g0, 0x0000, %g2 be B3 addcc %g0, 0x1fff, %g1 inc %g7 B3: addcc %g0, 0x0001, %g2 bg B4 addcc %g0, 0x1fff, %g1 inc %g7 B4: addcc %g0, 0x0000, %g2 dec %g2 ble B5 addcc %g0, 0x1fff, %g1 inc %g7 B5: addcc %g0, 0x0001, %g2 bge B6 addcc %g0, 0x1fff, %g1 inc %g7 B6: addcc %g0, 0x0000, %g2 bge B7 addcc %g0, 0x1fff, %g1 inc %g7 B7: addcc %g0, 0x0000, %g2 dec %g2 bl B8 addcc %g0, 0x1fff, %g1 inc %g7 B8: addcc %g0, 0x0001, %g2 bgu B9 addcc %g0, 0x1fff, %g1 inc %g7 B9: addcc %g0, 0x0000, %g2 bleu B10 addcc %g0, 0x1fff, %g1 inc %g7 B10: addcc %g0, 0x0001, %g2 dec %g2 bcc B11 addcc %g0, 0x1fff, %g1 inc %g7 B11: addcc %g0, 0x0002, %g2 dec %g2 bpos B12 addcc %g0, 0x1fff, %g1 inc %g7 B12: addcc %g0, 0x0000, %g2 dec %g2 bneg B13 addcc %g0, 0x1fff, %g1 inc %g7 B13: addcc %g0, 0x0001, %g2 dec %g2 bvc Bx addcc %g0, 0x1fff, %g1 inc %g7 Bx: cmp %g7, 0x0 nop nop nop nop nop nop !good_trap: ! b good_trap EXIT_GOOD nop nop !SECTION .DATA TEXT_VA = 0xffffff0000000000 !attr_text { ! Name=.DATA, ! hypervisor !} .data .xword 0x0 .xword 0x1 .xword 0x2 .xword 0x3 .xword 0x4 .xword 0x5 .xword 0x6 .xword 0x7 .end