ADD: Open version, with important changes kept out.

Signed-off-by: Amlal <amlal.elmahrouss@icloud.com>

1 files changed, 101 insertions, 0 deletions

diff --git a/dev/Kernel/HALKit/AMD64/HalCPUAMD64.cc b/dev/Kernel/HALKit/AMD64/HalCPUAMD64.cc
new file mode 100644
index 00000000..52ba46aa
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalCPUAMD64.cc
@@ -0,0 +1,101 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved.
+
+	File: HalCPU.cc
+	Purpose: Platform processor routines.
+
+------------------------------------------- */
+
+#include <HALKit/AMD64/Paging.h>
+#include <HALKit/AMD64/Processor.h>
+
+/**
+ * @file HalCPU.cc
+ * @brief Common CPU API.
+ */
+
+namespace Kernel::HAL
+{
+	Void lrt_out8(UInt16 port, UInt8 value)
+	{
+		asm volatile("outb %%al, %1"
+					 :
+					 : "a"(value), "Nd"(port)
+					 : "memory");
+	}
+
+	Void lrt_out16(UInt16 port, UInt16 value)
+	{
+		asm volatile("outw %%ax, %1"
+					 :
+					 : "a"(value), "Nd"(port)
+					 : "memory");
+	}
+
+	Void lrt_out32(UInt16 port, UInt32 value)
+	{
+		asm volatile("outl %%eax, %1"
+					 :
+					 : "a"(value), "Nd"(port)
+					 : "memory");
+	}
+
+	UInt8 lrt_in8(UInt16 port)
+	{
+		UInt8 value = 0UL;
+		asm volatile("inb %1, %%al"
+					 : "=a"(value)
+					 : "Nd"(port)
+					 : "memory");
+
+		return value;
+	}
+
+	UInt16 lrt_in16(UInt16 port)
+	{
+		UInt16 value = 0UL;
+		asm volatile("inw %1, %%ax"
+					 : "=a"(value)
+					 : "Nd"(port)
+					 : "memory");
+
+		return value;
+	}
+
+	UInt32 lrt_in32(UInt16 port)
+	{
+		UInt32 value = 0UL;
+		asm volatile("inl %1, %%eax"
+					 : "=a"(value)
+					 : "Nd"(port)
+					 : "memory");
+
+		return value;
+	}
+
+	Void rt_halt()
+	{
+		asm volatile("hlt");
+	}
+
+	Void rt_cli()
+	{
+		asm volatile("cli");
+	}
+
+	Void rt_sti()
+	{
+		asm volatile("sti");
+	}
+
+	Void rt_cld()
+	{
+		asm volatile("cld");
+	}
+
+	Void rt_std()
+	{
+		asm volatile("std");
+	}
+} // namespace Kernel::HAL