syscall_conventions.h

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#pragma once
 
#include <array>
#include <cstdint>
 
#include "contur/arch/register_file.h"
 
namespace contur {

    constexpr std::uint8_t SYSCALL_ID_REGISTER = static_cast<std::uint8_t>(Register::R0);

    constexpr std::array<std::uint8_t, 4> SYSCALL_ARG_REGISTERS = {
        static_cast<std::uint8_t>(Register::R1),
        static_cast<std::uint8_t>(Register::R2),
        static_cast<std::uint8_t>(Register::R3),
        static_cast<std::uint8_t>(Register::R4),
    };

    constexpr std::uint8_t SYSCALL_STATUS_REGISTER = static_cast<std::uint8_t>(Register::R7);
 
} // namespace contur