Move hos.* modules to hulk.*

src/hulk/cpu.d

@@ -0,0 +1,76 @@
+/**
+ * CPU functionality.
+ */
+module hulk.cpu;
+
+import ldc.llvmasm;
+
+void cli()
+{
+    __asm("cli", "");
+}
+
+void sti()
+{
+    __asm("sti", "");
+}
+
+void hlt()
+{
+    __asm("hlt", "");
+}
+
+ulong read_cr0()
+{
+    return __asm!ulong("mov %cr0, %rax", "={rax}");
+}
+
+ulong read_cr2()
+{
+    return __asm!ulong("mov %cr2, %rax", "={rax}");
+}
+
+ulong read_cr3()
+{
+    return __asm!ulong("mov %cr3, %rax", "={rax}");
+}
+
+void write_cr3(ulong v)
+{
+    __asm("mov $0, %cr3", "r", v);
+}
+
+ulong read_cr4()
+{
+    return __asm!ulong("mov %cr4, %rax", "={rax}");
+}
+
+ubyte in8(ushort ioaddr)
+{
+    return __asm!ubyte("inb %dx, %al", "={al},{dx}", ioaddr);
+}
+
+ushort in16(ushort ioaddr)
+{
+    return __asm!ushort("inw %dx, %ax", "={ax},{dx}", ioaddr);
+}
+
+ulong in32(ushort ioaddr)
+{
+    return __asm!ulong("inl %dx, %eax", "={eax},{dx}", ioaddr);
+}
+
+void out8(ushort ioaddr, ubyte v)
+{
+    __asm("outb %al, %dx", "{dx},{al}", ioaddr, v);
+}
+
+void out16(ushort ioaddr, ushort v)
+{
+    __asm("outw %ax, %dx", "{dx},{ax}", ioaddr, v);
+}
+
+void out32(ushort ioaddr, ulong v)
+{
+    __asm("outl %eax, %dx", "{dx},{eax}", ioaddr, v);
+}