NJU-ProjectN/nemu ics2023 initialized

NJU-ProjectN/nemu eb63cf3568dbf4e0c3c6ef462e6ec685550fabbc Merge pull request #76 from rijuyuezhu/master

nemu/include/isa.h

@@ -0,0 +1,58 @@
+/***************************************************************************************
+* 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_H__
+#define __ISA_H__
+
+// Located at src/isa/$(GUEST_ISA)/include/isa-def.h
+#include <isa-def.h>
+
+// The macro `__GUEST_ISA__` is defined in $(CFLAGS).
+// It will be expanded as "x86" or "mips32" ...
+typedef concat(__GUEST_ISA__, _CPU_state) CPU_state;
+typedef concat(__GUEST_ISA__, _ISADecodeInfo) ISADecodeInfo;
+
+// monitor
+extern unsigned char isa_logo[];
+void init_isa();
+
+// reg
+extern CPU_state cpu;
+void isa_reg_display();
+word_t isa_reg_str2val(const char *name, bool *success);
+
+// exec
+struct Decode;
+int isa_exec_once(struct Decode *s);
+
+// memory
+enum { MMU_DIRECT, MMU_TRANSLATE, MMU_FAIL };
+enum { MEM_TYPE_IFETCH, MEM_TYPE_READ, MEM_TYPE_WRITE };
+enum { MEM_RET_OK, MEM_RET_FAIL, MEM_RET_CROSS_PAGE };
+#ifndef isa_mmu_check
+int isa_mmu_check(vaddr_t vaddr, int len, int type);
+#endif
+paddr_t isa_mmu_translate(vaddr_t vaddr, int len, int type);
+
+// interrupt/exception
+vaddr_t isa_raise_intr(word_t NO, vaddr_t epc);
+#define INTR_EMPTY ((word_t)-1)
+word_t isa_query_intr();
+
+// difftest
+bool isa_difftest_checkregs(CPU_state *ref_r, vaddr_t pc);
+void isa_difftest_attach();
+
+#endif