mirror of
https://github.com/openhwgroup/cvw
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148 lines
3.4 KiB
ArmAsm
148 lines
3.4 KiB
ArmAsm
///////////////////////////////////////////
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// ifuCamlineWrite.S
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//
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// Written: Miles Cook <mdcook@g.hmc.edu> and Kevin Box <kbox@g.hmc.edu> 4/17
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//
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// Acknowledgements: The pagetable and outline for this test was written by Manuel Mendoza
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// and Noah Limpert.
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//
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// Purpose: Test coverage for TLBCamlines in IFU
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//
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// A component of the CORE-V-WALLY configurable RISC-V project.
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// https://github.com/openhwgroup/cvw
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//
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// Copyright (C) 2021-23 Harvey Mudd College & Oklahoma State University
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//
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// SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1
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//
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// Licensed under the Solderpad Hardware License v 2.1 (the “License”); you may not use this file
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// except in compliance with the License, or, at your option, the Apache License version 2.0. You
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// may obtain a copy of the License at
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//
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// https://solderpad.org/licenses/SHL-2.1/
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//
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// Unless required by applicable law or agreed to in writing, any work distributed under the
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// License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific language governing permissions
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// and limitations under the License.
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////////////////////////////////////////////////////////////////////////////////////////////////
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// load code to initalize stack, handle interrupts, terminate
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#include "WALLY-init-lib.h"
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# run-elf.bash find this in project description
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main:
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# Page table root address at 0x80010000
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li t5, 0x9000000000080010
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csrw satp, t5
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# switch to supervisor mode
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li a0, 1
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ecall
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li t0, 0x80015000 # base addr
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li t2, 0 # i = 0
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li t3, 33 # Max amount of Loops = 32
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loop: bge t2, t3, finished # exit loop if i >= loops
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li t4, 0x1000
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li t1, 0x00008067 # load in jalr
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sw t1, 0 (t0)
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fence.I
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jalr t0
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add t0, t0, t4
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addi t2, t2, 1
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j loop
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finished:
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j done
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.data
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.align 16
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# Page table situated at 0x80010000
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pagetable:
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.8byte 0x200044C1 // old page table was 200040 which just pointed to itself! wrong
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.align 12
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.8byte 0x0000000000000000
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.8byte 0x00000000200048C1
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.8byte 0x00000000200048C1
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.align 12
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.8byte 0x0000000020004CC1
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//.8byte 0x00000200800CF// ADD IN THE MEGAPAGE should 3 nibbles of zeros be removed?
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.align 12
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#80000000
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.8byte 0x200000CF
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.8byte 0x200004CF
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.8byte 0x200008CF
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.8byte 0x20000CCF
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.8byte 0x200010CF
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.8byte 0x200014CF
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.8byte 0x200018CF
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.8byte 0x20001CCF
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.8byte 0x200020CF
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.8byte 0x200024CF
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.8byte 0x200028CF
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.8byte 0x20002CCF
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.8byte 0x200030CF
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.8byte 0x200034CF
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.8byte 0x200038CF
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.8byte 0x20003CCF
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.8byte 0x200040CF
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.8byte 0x200044CF
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.8byte 0x200048CF
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.8byte 0x20004CCF
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.8byte 0x200050CF
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.8byte 0x200054CF
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.8byte 0x200058CF
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.8byte 0x20005CCF
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.8byte 0x200060CF
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.8byte 0x200064CF
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.8byte 0x200068CF
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.8byte 0x20006CCF
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.8byte 0x200070CF
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.8byte 0x200074CF
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.8byte 0x200078CF
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.8byte 0x20007CCF
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.8byte 0x200080CF
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.8byte 0x200084CF
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.8byte 0x200088CF
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.8byte 0x20008CCF
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.8byte 0x200090CF
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.8byte 0x200094CF
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.8byte 0x200098CF
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.8byte 0x20009CCF
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.8byte 0x200100CF
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.8byte 0x200104CF
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.8byte 0x200108CF
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.8byte 0x20010CCF
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.8byte 0x200110CF
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.8byte 0x200114CF
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.8byte 0x200118CF
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.8byte 0x20011CCF
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.8byte 0x200120CF
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.8byte 0x200124CF
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.8byte 0x200128CF
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.8byte 0x20012CCF
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.8byte 0x200130CF
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.8byte 0x200134CF
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