criscv/include/address_space.h

#ifndef ADDRESS_SPACE_H
#define ADDRESS_SPACE_H

#include <stdint.h>
#include <stdbool.h>

struct AddressSpace_s {
    // A pointer to a ROM array. The array can vary in length.
    uint8_t *rom;
    // The size of ROM.
    uint32_t romSize; // TODO look into making it const
    // Is ROM read only
    bool romLocked;

    // A pointer to a RAM array. The array can vary in length.
    uint8_t *ram;
    // The size of RAM.
    uint32_t ramSize;

    // The CSRs, size is always 4096 (12 bits)
    uint32_t *csr;
};

typedef struct AddressSpace_s AddressSpace;

AddressSpace *create_address_space(const uint32_t romSize, const uint32_t ramSize);
int read_address_space(const AddressSpace *addressSpace, const uint32_t address, const int n, void *dest);
int write_address_space(const AddressSpace *addressSpace, const uint32_t address, const int n, void *src);
int read_csr(const AddressSpace *addressSpace, const uint16_t address, void *dest);
int write_csr(const AddressSpace *addressSpace, const uint16_t address, void *src);

#endif