NJU-ProjectN/nemu ics2023 initialized
NJU-ProjectN/nemu eb63cf3568dbf4e0c3c6ef462e6ec685550fabbc Merge pull request #76 from rijuyuezhu/master
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141 changed files with 19573 additions and 0 deletions
10
nemu/src/isa/riscv32/Kconfig
Normal file
10
nemu/src/isa/riscv32/Kconfig
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@ -0,0 +1,10 @@
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menu "ISA-dependent Options for riscv"
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config RV64
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bool "64-bit RISC-V architecture"
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default n
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config RVE
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bool "Use E extension"
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default n
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endmenu
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25
nemu/src/isa/riscv32/difftest/dut.c
Normal file
25
nemu/src/isa/riscv32/difftest/dut.c
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@ -0,0 +1,25 @@
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/***************************************************************************************
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* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
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*
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* NEMU is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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*
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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*
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* See the Mulan PSL v2 for more details.
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***************************************************************************************/
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#include <isa.h>
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#include <cpu/difftest.h>
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#include "../local-include/reg.h"
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bool isa_difftest_checkregs(CPU_state *ref_r, vaddr_t pc) {
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return false;
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}
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void isa_difftest_attach() {
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}
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35
nemu/src/isa/riscv32/include/isa-def.h
Normal file
35
nemu/src/isa/riscv32/include/isa-def.h
Normal file
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@ -0,0 +1,35 @@
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/***************************************************************************************
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* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
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*
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* NEMU is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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*
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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*
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* See the Mulan PSL v2 for more details.
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***************************************************************************************/
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#ifndef __ISA_RISCV_H__
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#define __ISA_RISCV_H__
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#include <common.h>
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typedef struct {
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word_t gpr[MUXDEF(CONFIG_RVE, 16, 32)];
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vaddr_t pc;
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} MUXDEF(CONFIG_RV64, riscv64_CPU_state, riscv32_CPU_state);
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// decode
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typedef struct {
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union {
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uint32_t val;
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} inst;
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} MUXDEF(CONFIG_RV64, riscv64_ISADecodeInfo, riscv32_ISADecodeInfo);
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#define isa_mmu_check(vaddr, len, type) (MMU_DIRECT)
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#endif
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43
nemu/src/isa/riscv32/init.c
Normal file
43
nemu/src/isa/riscv32/init.c
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@ -0,0 +1,43 @@
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/***************************************************************************************
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* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
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*
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* NEMU is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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*
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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*
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* See the Mulan PSL v2 for more details.
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***************************************************************************************/
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#include <isa.h>
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#include <memory/paddr.h>
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// this is not consistent with uint8_t
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// but it is ok since we do not access the array directly
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static const uint32_t img [] = {
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0x00000297, // auipc t0,0
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0x00028823, // sb zero,16(t0)
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0x0102c503, // lbu a0,16(t0)
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0x00100073, // ebreak (used as nemu_trap)
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0xdeadbeef, // some data
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};
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static void restart() {
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/* Set the initial program counter. */
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cpu.pc = RESET_VECTOR;
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/* The zero register is always 0. */
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cpu.gpr[0] = 0;
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}
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void init_isa() {
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/* Load built-in image. */
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memcpy(guest_to_host(RESET_VECTOR), img, sizeof(img));
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/* Initialize this virtual computer system. */
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restart();
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}
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76
nemu/src/isa/riscv32/inst.c
Normal file
76
nemu/src/isa/riscv32/inst.c
Normal file
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@ -0,0 +1,76 @@
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/***************************************************************************************
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* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
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*
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* NEMU is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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*
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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*
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* See the Mulan PSL v2 for more details.
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***************************************************************************************/
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#include "local-include/reg.h"
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#include <cpu/cpu.h>
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#include <cpu/ifetch.h>
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#include <cpu/decode.h>
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#define R(i) gpr(i)
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#define Mr vaddr_read
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#define Mw vaddr_write
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enum {
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TYPE_I, TYPE_U, TYPE_S,
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TYPE_N, // none
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};
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#define src1R() do { *src1 = R(rs1); } while (0)
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#define src2R() do { *src2 = R(rs2); } while (0)
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#define immI() do { *imm = SEXT(BITS(i, 31, 20), 12); } while(0)
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#define immU() do { *imm = SEXT(BITS(i, 31, 12), 20) << 12; } while(0)
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#define immS() do { *imm = (SEXT(BITS(i, 31, 25), 7) << 5) | BITS(i, 11, 7); } while(0)
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static void decode_operand(Decode *s, int *rd, word_t *src1, word_t *src2, word_t *imm, int type) {
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uint32_t i = s->isa.inst.val;
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int rs1 = BITS(i, 19, 15);
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int rs2 = BITS(i, 24, 20);
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*rd = BITS(i, 11, 7);
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switch (type) {
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case TYPE_I: src1R(); immI(); break;
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case TYPE_U: immU(); break;
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case TYPE_S: src1R(); src2R(); immS(); break;
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}
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}
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static int decode_exec(Decode *s) {
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int rd = 0;
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word_t src1 = 0, src2 = 0, imm = 0;
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s->dnpc = s->snpc;
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#define INSTPAT_INST(s) ((s)->isa.inst.val)
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#define INSTPAT_MATCH(s, name, type, ... /* execute body */ ) { \
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decode_operand(s, &rd, &src1, &src2, &imm, concat(TYPE_, type)); \
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__VA_ARGS__ ; \
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}
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INSTPAT_START();
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INSTPAT("??????? ????? ????? ??? ????? 00101 11", auipc , U, R(rd) = s->pc + imm);
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INSTPAT("??????? ????? ????? 100 ????? 00000 11", lbu , I, R(rd) = Mr(src1 + imm, 1));
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INSTPAT("??????? ????? ????? 000 ????? 01000 11", sb , S, Mw(src1 + imm, 1, src2));
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INSTPAT("0000000 00001 00000 000 00000 11100 11", ebreak , N, NEMUTRAP(s->pc, R(10))); // R(10) is $a0
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INSTPAT("??????? ????? ????? ??? ????? ????? ??", inv , N, INV(s->pc));
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INSTPAT_END();
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R(0) = 0; // reset $zero to 0
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return 0;
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}
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int isa_exec_once(Decode *s) {
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s->isa.inst.val = inst_fetch(&s->snpc, 4);
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return decode_exec(s);
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}
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33
nemu/src/isa/riscv32/local-include/reg.h
Normal file
33
nemu/src/isa/riscv32/local-include/reg.h
Normal file
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@ -0,0 +1,33 @@
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/***************************************************************************************
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* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
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*
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* NEMU is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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*
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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*
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* See the Mulan PSL v2 for more details.
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***************************************************************************************/
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#ifndef __RISCV_REG_H__
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#define __RISCV_REG_H__
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#include <common.h>
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static inline int check_reg_idx(int idx) {
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IFDEF(CONFIG_RT_CHECK, assert(idx >= 0 && idx < MUXDEF(CONFIG_RVE, 16, 32)));
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return idx;
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}
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#define gpr(idx) (cpu.gpr[check_reg_idx(idx)])
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static inline const char* reg_name(int idx) {
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extern const char* regs[];
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return regs[check_reg_idx(idx)];
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}
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#endif
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63
nemu/src/isa/riscv32/logo.c
Normal file
63
nemu/src/isa/riscv32/logo.c
Normal file
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@ -0,0 +1,63 @@
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/***************************************************************************************
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* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
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*
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* NEMU is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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||||
* http://license.coscl.org.cn/MulanPSL2
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*
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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||||
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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*
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* See the Mulan PSL v2 for more details.
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***************************************************************************************/
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// refer to http://www.patorjk.com/software/taag/#p=display&f=Big&t=Type%20Something%20
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/*
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_ __ __ _
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(_) | \/ | | |
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_ __ _ ___ ___ ________ __ | \ / | __ _ _ __ _ _ __ _| |
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| '__| / __|/ __|______\ \ / / | |\/| |/ _` | '_ \| | | |/ _` | |
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| | | \__ \ (__ \ V / | | | | (_| | | | | |_| | (_| | |
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|_| |_|___/\___| \_/ |_| |_|\__,_|_| |_|\__,_|\__,_|_|
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*/
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unsigned char isa_logo[] = {
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0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x5f, 0x20, 0x20, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x5f, 0x5f, 0x20,
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0x20, 0x5f, 0x5f, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
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0x20, 0x20, 0x20, 0x20, 0x5f, 0x20, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20,
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0x20, 0x28, 0x5f, 0x29, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
|
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0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
|
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0x20, 0x20, 0x20, 0x7c, 0x20, 0x20, 0x5c, 0x2f, 0x20, 0x20, 0x7c, 0x20,
|
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0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
|
||||
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x7c, 0x20,
|
||||
0x7c, 0x0a, 0x20, 0x20, 0x5f, 0x20, 0x5f, 0x5f, 0x20, 0x5f, 0x20, 0x5f,
|
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0x5f, 0x5f, 0x20, 0x20, 0x5f, 0x5f, 0x5f, 0x20, 0x5f, 0x5f, 0x5f, 0x5f,
|
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0x5f, 0x5f, 0x5f, 0x5f, 0x20, 0x20, 0x20, 0x5f, 0x5f, 0x20, 0x7c, 0x20,
|
||||
0x5c, 0x20, 0x20, 0x2f, 0x20, 0x7c, 0x20, 0x5f, 0x5f, 0x20, 0x5f, 0x20,
|
||||
0x5f, 0x20, 0x5f, 0x5f, 0x20, 0x20, 0x5f, 0x20, 0x20, 0x20, 0x5f, 0x20,
|
||||
0x20, 0x5f, 0x5f, 0x20, 0x5f, 0x7c, 0x20, 0x7c, 0x0a, 0x20, 0x7c, 0x20,
|
||||
0x27, 0x5f, 0x5f, 0x7c, 0x20, 0x2f, 0x20, 0x5f, 0x5f, 0x7c, 0x2f, 0x20,
|
||||
0x5f, 0x5f, 0x7c, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5c, 0x20, 0x5c,
|
||||
0x20, 0x2f, 0x20, 0x2f, 0x20, 0x7c, 0x20, 0x7c, 0x5c, 0x2f, 0x7c, 0x20,
|
||||
0x7c, 0x2f, 0x20, 0x5f, 0x60, 0x20, 0x7c, 0x20, 0x27, 0x5f, 0x20, 0x5c,
|
||||
0x7c, 0x20, 0x7c, 0x20, 0x7c, 0x20, 0x7c, 0x2f, 0x20, 0x5f, 0x60, 0x20,
|
||||
0x7c, 0x20, 0x7c, 0x0a, 0x20, 0x7c, 0x20, 0x7c, 0x20, 0x20, 0x7c, 0x20,
|
||||
0x5c, 0x5f, 0x5f, 0x20, 0x5c, 0x20, 0x28, 0x5f, 0x5f, 0x20, 0x20, 0x20,
|
||||
0x20, 0x20, 0x20, 0x20, 0x20, 0x5c, 0x20, 0x56, 0x20, 0x2f, 0x20, 0x20,
|
||||
0x7c, 0x20, 0x7c, 0x20, 0x20, 0x7c, 0x20, 0x7c, 0x20, 0x28, 0x5f, 0x7c,
|
||||
0x20, 0x7c, 0x20, 0x7c, 0x20, 0x7c, 0x20, 0x7c, 0x20, 0x7c, 0x5f, 0x7c,
|
||||
0x20, 0x7c, 0x20, 0x28, 0x5f, 0x7c, 0x20, 0x7c, 0x20, 0x7c, 0x0a, 0x20,
|
||||
0x7c, 0x5f, 0x7c, 0x20, 0x20, 0x7c, 0x5f, 0x7c, 0x5f, 0x5f, 0x5f, 0x2f,
|
||||
0x5c, 0x5f, 0x5f, 0x5f, 0x7c, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
|
||||
0x20, 0x5c, 0x5f, 0x2f, 0x20, 0x20, 0x20, 0x7c, 0x5f, 0x7c, 0x20, 0x20,
|
||||
0x7c, 0x5f, 0x7c, 0x5c, 0x5f, 0x5f, 0x2c, 0x5f, 0x7c, 0x5f, 0x7c, 0x20,
|
||||
0x7c, 0x5f, 0x7c, 0x5c, 0x5f, 0x5f, 0x2c, 0x5f, 0x7c, 0x5c, 0x5f, 0x5f,
|
||||
0x2c, 0x5f, 0x7c, 0x5f, 0x7c, 0x0a, '\0' /* Termination Character is indispensable! */
|
||||
};
|
||||
31
nemu/src/isa/riscv32/reg.c
Normal file
31
nemu/src/isa/riscv32/reg.c
Normal file
|
|
@ -0,0 +1,31 @@
|
|||
/***************************************************************************************
|
||||
* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
|
||||
*
|
||||
* NEMU is licensed under Mulan PSL v2.
|
||||
* You can use this software according to the terms and conditions of the Mulan PSL v2.
|
||||
* You may obtain a copy of Mulan PSL v2 at:
|
||||
* http://license.coscl.org.cn/MulanPSL2
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
|
||||
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
|
||||
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
|
||||
*
|
||||
* See the Mulan PSL v2 for more details.
|
||||
***************************************************************************************/
|
||||
|
||||
#include <isa.h>
|
||||
#include "local-include/reg.h"
|
||||
|
||||
const char *regs[] = {
|
||||
"$0", "ra", "sp", "gp", "tp", "t0", "t1", "t2",
|
||||
"s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5",
|
||||
"a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7",
|
||||
"s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6"
|
||||
};
|
||||
|
||||
void isa_reg_display() {
|
||||
}
|
||||
|
||||
word_t isa_reg_str2val(const char *s, bool *success) {
|
||||
return 0;
|
||||
}
|
||||
28
nemu/src/isa/riscv32/system/intr.c
Normal file
28
nemu/src/isa/riscv32/system/intr.c
Normal file
|
|
@ -0,0 +1,28 @@
|
|||
/***************************************************************************************
|
||||
* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
|
||||
*
|
||||
* NEMU is licensed under Mulan PSL v2.
|
||||
* You can use this software according to the terms and conditions of the Mulan PSL v2.
|
||||
* You may obtain a copy of Mulan PSL v2 at:
|
||||
* http://license.coscl.org.cn/MulanPSL2
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
|
||||
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
|
||||
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
|
||||
*
|
||||
* See the Mulan PSL v2 for more details.
|
||||
***************************************************************************************/
|
||||
|
||||
#include <isa.h>
|
||||
|
||||
word_t isa_raise_intr(word_t NO, vaddr_t epc) {
|
||||
/* TODO: Trigger an interrupt/exception with ``NO''.
|
||||
* Then return the address of the interrupt/exception vector.
|
||||
*/
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
word_t isa_query_intr() {
|
||||
return INTR_EMPTY;
|
||||
}
|
||||
22
nemu/src/isa/riscv32/system/mmu.c
Normal file
22
nemu/src/isa/riscv32/system/mmu.c
Normal file
|
|
@ -0,0 +1,22 @@
|
|||
/***************************************************************************************
|
||||
* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
|
||||
*
|
||||
* NEMU is licensed under Mulan PSL v2.
|
||||
* You can use this software according to the terms and conditions of the Mulan PSL v2.
|
||||
* You may obtain a copy of Mulan PSL v2 at:
|
||||
* http://license.coscl.org.cn/MulanPSL2
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
|
||||
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
|
||||
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
|
||||
*
|
||||
* See the Mulan PSL v2 for more details.
|
||||
***************************************************************************************/
|
||||
|
||||
#include <isa.h>
|
||||
#include <memory/vaddr.h>
|
||||
#include <memory/paddr.h>
|
||||
|
||||
paddr_t isa_mmu_translate(vaddr_t vaddr, int len, int type) {
|
||||
return MEM_RET_FAIL;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue