kernel: add GKit, improve AMD64 HAL.

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

1 files changed, 58 insertions, 0 deletions

diff --git a/Private/HALKit/AMD64/HalProcessor.cpp b/Private/HALKit/AMD64/HalProcessor.cpp
new file mode 100644
index 00000000..3d509f79
--- /dev/null
+++ b/Private/HALKit/AMD64/HalProcessor.cpp
@@ -0,0 +1,58 @@
+/*
+ *	========================================================
+ *
+ *	HCore
+ * 	Copyright 2024 Mahrouss Logic, all rights reserved.
+ *
+ * 	========================================================
+ */
+
+#include <HALKit/AMD64/Processor.hpp>
+
+/**
+ * @file Processor.cpp
+ * @brief This file is about processor specific functions (in/out...)
+ */
+
+namespace HCore::HAL {
+void out8(UInt16 port, UInt8 value) {
+  asm volatile("outb %%al, %1" : : "a"(value), "Nd"(port) : "memory");
+}
+
+void out16(UInt16 port, UInt16 value) {
+  asm volatile("outw %%ax, %1" : : "a"(value), "Nd"(port) : "memory");
+}
+
+void out32(UInt16 port, UInt32 value) {
+  asm volatile("outl %%eax, %1" : : "a"(value), "Nd"(port) : "memory");
+}
+
+UInt8 in8(UInt16 port) {
+  UInt8 value = 0UL;
+  asm volatile("inb %1, %%al" : "=a"(value) : "Nd"(port) : "memory");
+
+  return value;
+}
+
+UInt16 in16(UInt16 port) {
+  UInt16 value = 0UL;
+  asm volatile("inw %1, %%ax" : "=a"(value) : "Nd"(port) : "memory");
+
+  return value;
+}
+
+UInt32 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"); }
+}  // namespace HCore::HAL