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-rw-r--r--portio.hpp54
1 files changed, 51 insertions, 3 deletions
diff --git a/portio.hpp b/portio.hpp
index 0a10651..7636c14 100644
--- a/portio.hpp
+++ b/portio.hpp
@@ -5,20 +5,68 @@
inline void outb(std::uint16_t port, std::uint8_t val)
{
- asm volatile("outb %b0, %w1" :: "a"(val), "Nd"(port) : "memory");
+ asm volatile("out %%al, %%dx" :: "a"(val), "Nd"(port) : "memory");
}
inline std::uint8_t inb(std::uint16_t port)
{
std::uint8_t val;
- asm volatile("inb %w1, %b0" : "=a"(val) : "Nd"(port) : "memory");
+ asm volatile("inb %%dx" : "=a"(val) : "Nd"(port) : "memory");
return val;
}
-
+
+inline void outw(std::uint16_t port, std::uint16_t val)
+{
+ asm volatile("out %%ax, %%dx" :: "a"(val), "Nd"(port) : "memory");
+}
+
+inline std::uint16_t inw(std::uint16_t port)
+{
+ std::uint16_t val;
+ asm volatile("inw %%dx" : "=a"(val) : "Nd"(port) : "memory");
+ return val;
+}
+
inline void io_wait()
{
outb(0x80, 0);
}
+template<std::uint16_t Addr>
+struct Port
+{
+ Port() = default;
+
+ template<typename T>
+ auto operator=(T val) noexcept {
+ if constexpr (sizeof(T) == 1)
+ outb(Addr, val);
+ else if constexpr (sizeof(T) == 2)
+ outw(Addr, val);
+
+ return *this;
+ }
+
+ template<typename T>
+ operator T() const noexcept {
+ if constexpr (sizeof(T) == 1)
+ return inb(Addr);
+ else if constexpr (sizeof(T) == 2)
+ return inw(Addr);
+ }
+
+ template<typename T>
+ bool operator==(T val) const noexcept {
+ T dat = *this;
+ return dat == val;
+ }
+
+ template<typename T>
+ auto operator&(T val) const noexcept {
+ T dat = *this;
+ return dat & val;
+ }
+};
+
#endif // PORTIO_HPP