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Some work on CSR

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This commit is contained in:
Steven Le Rouzic
2024-05-13 00:04:44 +02:00
parent f9541157b6
commit f95a85de00
12 changed files with 403 additions and 227 deletions
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27
emulator/hart.h
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@ -1,19 +1,38 @@
#pragma once
#include "emulator/csr.h"
#include <stdint.h>
#include <stdbool.h>
#define PRIV_U 0
#define PRIV_S 1
#define PRIV_M 3
struct Hart
{
uint32_t pc;
uint32_t regs[32];
uint32_t hartid;
uint32_t regs[32];
uint32_t pc;
uint8_t priv;
// @Todo Proper memory system
char* mem;
uint32_t mem_size;
bool halted;
// @Todo Deduplicate per machine
Csr csrs[4096];
uint64_t instret;
// @Todo Deduplicate per machine
uint64_t time;
};
typedef struct Hart Hart;
void hart_init(Hart* hart, uint32_t id, char* mem, uint32_t mem_size);
void execute(Hart* hart, uint32_t instruction);
void execute_from(Hart* hart, uint32_t start_address);