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NJU-ProjectN/nemu ics2023 initialized

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NJU-ProjectN/nemu eb63cf3568dbf4e0c3c6ef462e6ec685550fabbc Merge pull request #76 from rijuyuezhu/master
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xinyangli 2023-12-21 00:20:36 +08:00
parent 1efe03efb9
commit 2824efad33
141 changed files with 19573 additions and 0 deletions
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25
nemu/src/isa/mips32/difftest/dut.c Normal file
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/***************************************************************************************
* 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 <cpu/difftest.h>
#include "../local-include/reg.h"
bool isa_difftest_checkregs(CPU_state *ref_r, vaddr_t pc) {
return false;
}
void isa_difftest_attach() {
}

36
nemu/src/isa/mips32/include/isa-def.h Normal file
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/***************************************************************************************
* 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.
***************************************************************************************/
#ifndef __ISA_MIPS32_H__
#define __ISA_MIPS32_H__
#include <common.h>
typedef struct {
word_t gpr[32];
word_t pad[5];
vaddr_t pc;
} mips32_CPU_state;
// decode
typedef struct {
union {
uint32_t val;
} inst;
} mips32_ISADecodeInfo;
#define isa_mmu_check(vaddr, len, type) (MMU_DIRECT)
#endif

42
nemu/src/isa/mips32/init.c Normal file
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/***************************************************************************************
* 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/paddr.h>
// this is not consistent with uint8_t
// but it is ok since we do not access the array directly
static const uint32_t img [] = {
0x3c048000, // lui a0, 0x8000
0xac800000, // sw zero, 0(a0)
0x8c820000, // lw v0,0(a0)
0x7000003f, // sdbbp (used as nemu_trap)
};
static void restart() {
/* Set the initial program counter. */
cpu.pc = RESET_VECTOR;
/* The zero register is always 0. */
cpu.gpr[0] = 0;
}
void init_isa() {
/* Load built-in image. */
memcpy(guest_to_host(RESET_VECTOR), img, sizeof(img));
/* Initialize this virtual computer system. */
restart();
}

74
nemu/src/isa/mips32/inst.c Normal file
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/***************************************************************************************
* 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 "local-include/reg.h"
#include <cpu/cpu.h>
#include <cpu/ifetch.h>
#include <cpu/decode.h>
#define R(i) gpr(i)
#define Mr vaddr_read
#define Mw vaddr_write
enum {
TYPE_I, TYPE_U,
TYPE_N, // none
};
#define src1R() do { *src1 = R(rs); } while (0)
#define src2R() do { *src2 = R(rt); } while (0)
#define immI() do { *imm = SEXT(BITS(i, 15, 0), 16); } while(0)
#define immU() do { *imm = BITS(i, 15, 0); } while(0)
static void decode_operand(Decode *s, int *rd, word_t *src1, word_t *src2, word_t *imm, int type) {
uint32_t i = s->isa.inst.val;
int rt = BITS(i, 20, 16);
int rs = BITS(i, 25, 21);
*rd = (type == TYPE_U || type == TYPE_I) ? rt : BITS(i, 15, 11);
switch (type) {
case TYPE_I: src1R(); immI(); break;
case TYPE_U: src1R(); immU(); break;
}
}
static int decode_exec(Decode *s) {
int rd = 0;
word_t src1 = 0, src2 = 0, imm = 0;
s->dnpc = s->snpc;
#define INSTPAT_INST(s) ((s)->isa.inst.val)
#define INSTPAT_MATCH(s, name, type, ... /* execute body */ ) { \
decode_operand(s, &rd, &src1, &src2, &imm, concat(TYPE_, type)); \
__VA_ARGS__ ; \
}
INSTPAT_START();
INSTPAT("001111 ????? ????? ????? ????? ??????", lui , U, R(rd) = imm << 16);
INSTPAT("100011 ????? ????? ????? ????? ??????", lw , I, R(rd) = Mr(src1 + imm, 4));
INSTPAT("101011 ????? ????? ????? ????? ??????", sw , I, Mw(src1 + imm, 4, R(rd)));
INSTPAT("011100 ????? ????? ????? ????? 111111", sdbbp , N, NEMUTRAP(s->pc, R(2))); // R(2) is $v0;
INSTPAT("?????? ????? ????? ????? ????? ??????", inv , N, INV(s->pc));
INSTPAT_END();
R(0) = 0; // reset $zero to 0
return 0;
}
int isa_exec_once(Decode *s) {
s->isa.inst.val = inst_fetch(&s->snpc, 4);
return decode_exec(s);
}

33
nemu/src/isa/mips32/local-include/reg.h Normal file
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/***************************************************************************************
* 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.
***************************************************************************************/
#ifndef __MIPS32_REG_H__
#define __MIPS32_REG_H__
#include <common.h>
static inline int check_reg_idx(int idx) {
IFDEF(CONFIG_RT_CHECK, assert(idx >= 0 && idx < 32));
return idx;
}
#define gpr(idx) cpu.gpr[check_reg_idx(idx)]
static inline const char* reg_name(int idx) {
extern const char* regs[];
return regs[check_reg_idx(idx)];
}
#endif

78
nemu/src/isa/mips32/logo.c Normal file
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/***************************************************************************************
* 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.
***************************************************************************************/
// refer to http://www.patorjk.com/software/taag/#p=display&f=Big&t=Type%20Something%20
/*
_ ____ ___ __ __ _
(_) |___ \__ \ | \/ | | |
_ __ ___ _ _ __ ___ __) | ) | | \ / | __ _ _ __ _ _ __ _| |
| '_ ` _ \| | '_ \/ __||__ < / / | |\/| |/ _` | '_ \| | | |/ _` | |
| | | | | | | |_) \__ \___) / /_ | | | | (_| | | | | |_| | (_| | |
|_| |_| |_|_| .__/|___/____/____| |_| |_|\__,_|_| |_|\__,_|\__,_|_|
| |
|_|
*/
unsigned char isa_logo[] = {
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x5f, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x5f, 0x5f, 0x5f, 0x5f, 0x20, 0x5f, 0x5f, 0x5f, 0x20, 0x20, 0x20, 0x20,
0x5f, 0x5f, 0x20, 0x20, 0x5f, 0x5f, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x5f, 0x20, 0x0a, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x28, 0x5f, 0x29,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x7c, 0x5f, 0x5f,
0x5f, 0x20, 0x5c, 0x5f, 0x5f, 0x20, 0x5c, 0x20, 0x20, 0x7c, 0x20, 0x20,
0x5c, 0x2f, 0x20, 0x20, 0x7c, 0x20, 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, 0x5f, 0x5f, 0x20, 0x20, 0x5f, 0x20, 0x5f, 0x20,
0x5f, 0x5f, 0x20, 0x20, 0x5f, 0x5f, 0x5f, 0x20, 0x20, 0x5f, 0x5f, 0x29,
0x20, 0x7c, 0x20, 0x29, 0x20, 0x7c, 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, 0x20,
0x60, 0x20, 0x5f, 0x20, 0x5c, 0x7c, 0x20, 0x7c, 0x20, 0x27, 0x5f, 0x20,
0x5c, 0x2f, 0x20, 0x5f, 0x5f, 0x7c, 0x7c, 0x5f, 0x5f, 0x20, 0x3c, 0x20,
0x2f, 0x20, 0x2f, 0x20, 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, 0x7c, 0x20, 0x7c,
0x20, 0x7c, 0x20, 0x7c, 0x20, 0x7c, 0x20, 0x7c, 0x5f, 0x29, 0x20, 0x5c,
0x5f, 0x5f, 0x20, 0x5c, 0x5f, 0x5f, 0x5f, 0x29, 0x20, 0x2f, 0x20, 0x2f,
0x5f, 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, 0x7c, 0x5f, 0x7c, 0x20, 0x7c,
0x5f, 0x7c, 0x5f, 0x7c, 0x20, 0x2e, 0x5f, 0x5f, 0x2f, 0x7c, 0x5f, 0x5f,
0x5f, 0x2f, 0x5f, 0x5f, 0x5f, 0x5f, 0x2f, 0x5f, 0x5f, 0x5f, 0x5f, 0x7c,
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,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x7c, 0x20, 0x7c, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x0a, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x7c,
0x5f, 0x7c, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x0a, '\0'
};

31
nemu/src/isa/mips32/reg.c Normal file
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/***************************************************************************************
* 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", "at", "v0", "v1", "a0", "a1", "a2", "a3",
"t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7",
"s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
"t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra"
};
void isa_reg_display() {
}
word_t isa_reg_str2val(const char *s, bool *success) {
return 0;
}

28
nemu/src/isa/mips32/system/intr.c Normal file
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/***************************************************************************************
* 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/mips32/system/mmu.c Normal file
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/***************************************************************************************
* 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/paddr.h>
#include <memory/vaddr.h>
paddr_t isa_mmu_translate(vaddr_t vaddr, int len, int type) {
return MEM_RET_FAIL;
}