Paul Pan
7b33e4213a
1. add test soft 2. modify verilator (TODO: crossbar need to replace) 3. fix CP0: now CU0 is always 1 4. Controller: cacheop 5. Controller: fix TEN 6. mycpu_top fix CP0_i 7. fix AXI.sv 8. fix AXIReader.sv 9. fix AXIWriter.sv: getting the correct data and length 10. MU: fix cache writeback, fix mem data mux, fix writer address, fix read request
70 lines
2.4 KiB
ArmAsm
70 lines
2.4 KiB
ArmAsm
#/* $Id: start.S,v 1.1.1.1 2006/09/14 01:59:08 root Exp $ */
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/*
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* Copyright (c) 2001 Opsycon AB (www.opsycon.se)
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Opsycon AB, Sweden.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#ifndef _KERNEL
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#define _KERNEL
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#endif
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#include <asm/asm.h>
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#include <asm/regdef.h>
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#include <cpu.h>
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#include <cpu_cde.h>
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#include <machine.h>
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#include <ns16550.h>
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#include <asm/context.h>
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.set noreorder
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.globl _start
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.globl start
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.globl __main
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_start:
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start:
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disable_trace_cmp_s
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disable_num_monitor_s
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lui t2,0x0040
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mtc0 t2, c0_status
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mtc0 zero, c0_cause
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la sp, _stack
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la gp, _gp
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la t1, memory_game #####
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li t2, 0x20000000 ###
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subu t9, t1, t2 #kseg1 -> kseg0
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jr t9 ###
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nop #####
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.org 0x380
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1: b 1b
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nop
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