xin/ysyx-workbench
1
0
Fork 0
Code Issues Pull requests 1 Projects Releases Packages Wiki Activity Actions

NJU-ProjectN/nemu ics2023 initialized

Browse source 
NJU-ProjectN/nemu eb63cf3568dbf4e0c3c6ef462e6ec685550fabbc Merge pull request #76 from rijuyuezhu/master
This commit is contained in:
xinyangli 2023-12-21 00:20:36 +08:00
parent 1efe03efb9
commit 2824efad33
141 changed files with 19573 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

17
nemu/src/engine/filelist.mk Normal file
View file

@ -0,0 +1,17 @@
#***************************************************************************************
# 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.
#**************************************************************************************/
INC_PATH += $(NEMU_HOME)/src/engine/$(ENGINE)
DIRS-y += src/engine/$(ENGINE)

51
nemu/src/engine/interpreter/hostcall.c Normal file
View file

@ -0,0 +1,51 @@
/***************************************************************************************
* 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 <utils.h>
#include <cpu/ifetch.h>
#include <isa.h>
#include <cpu/difftest.h>
void set_nemu_state(int state, vaddr_t pc, int halt_ret) {
difftest_skip_ref();
nemu_state.state = state;
nemu_state.halt_pc = pc;
nemu_state.halt_ret = halt_ret;
}
__attribute__((noinline))
void invalid_inst(vaddr_t thispc) {
uint32_t temp[2];
vaddr_t pc = thispc;
temp[0] = inst_fetch(&pc, 4);
temp[1] = inst_fetch(&pc, 4);
uint8_t *p = (uint8_t *)temp;
printf("invalid opcode(PC = " FMT_WORD "):\n"
"\t%02x %02x %02x %02x %02x %02x %02x %02x ...\n"
"\t%08x %08x...\n",
thispc, p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], temp[0], temp[1]);
printf("There are two cases which will trigger this unexpected exception:\n"
"1. The instruction at PC = " FMT_WORD " is not implemented.\n"
"2. Something is implemented incorrectly.\n", thispc);
printf("Find this PC(" FMT_WORD ") in the disassembling result to distinguish which case it is.\n\n", thispc);
printf(ANSI_FMT("If it is the first case, see\n%s\nfor more details.\n\n"
"If it is the second case, remember:\n"
"* The machine is always right!\n"
"* Every line of untested code is always wrong!\n\n", ANSI_FG_RED), isa_logo);
set_nemu_state(NEMU_ABORT, thispc, -1);
}

27
nemu/src/engine/interpreter/init.c Normal file
View file

@ -0,0 +1,27 @@
/***************************************************************************************
* 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 <cpu/cpu.h>
void sdb_mainloop();
void engine_start() {
#ifdef CONFIG_TARGET_AM
cpu_exec(-1);
#else
/* Receive commands from user. */
sdb_mainloop();
#endif
}