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#ifndef TALLER_MEM_HPP
#define TALLER_MEM_HPP
#include <cstdint>
#include <memory>
#include "avalon.hpp"
namespace taller::avalon
{
class mem : public slave
{
public:
mem(std::uint32_t base, std::uint32_t size);
virtual bool read_line(std::uint32_t addr, line &data) final override;
virtual bool write_line
(
std::uint32_t addr, const line &data, unsigned byte_enable
) final override;
template<typename F>
void load(F loader, std::size_t offset = 0);
private:
std::unique_ptr<line[]> block;
unsigned count = 0;
bool ready() noexcept;
};
template<typename F>
void mem::load(F loader, std::size_t offset)
{
const auto base = base_address();
const auto bits = 4;
std::size_t size = address_span();
std::size_t addr = base_address() + offset;
while (addr >= base && addr < base + size) {
std::size_t read = loader(&block[(addr - base) >> bits], (base + size - addr) >> bits);
if (!read)
break;
addr += read << bits;
}
}
}
#endif
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