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-rw-r--r--x86.h183
1 files changed, 0 insertions, 183 deletions
diff --git a/x86.h b/x86.h
deleted file mode 100644
index 07312a5..0000000
--- a/x86.h
+++ /dev/null
@@ -1,183 +0,0 @@
-// Routines to let C code use special x86 instructions.
-
-static inline uchar
-inb(ushort port)
-{
- uchar data;
-
- asm volatile("in %1,%0" : "=a" (data) : "d" (port));
- return data;
-}
-
-static inline void
-insl(int port, void *addr, int cnt)
-{
- asm volatile("cld; rep insl" :
- "=D" (addr), "=c" (cnt) :
- "d" (port), "0" (addr), "1" (cnt) :
- "memory", "cc");
-}
-
-static inline void
-outb(ushort port, uchar data)
-{
- asm volatile("out %0,%1" : : "a" (data), "d" (port));
-}
-
-static inline void
-outw(ushort port, ushort data)
-{
- asm volatile("out %0,%1" : : "a" (data), "d" (port));
-}
-
-static inline void
-outsl(int port, const void *addr, int cnt)
-{
- asm volatile("cld; rep outsl" :
- "=S" (addr), "=c" (cnt) :
- "d" (port), "0" (addr), "1" (cnt) :
- "cc");
-}
-
-static inline void
-stosb(void *addr, int data, int cnt)
-{
- asm volatile("cld; rep stosb" :
- "=D" (addr), "=c" (cnt) :
- "0" (addr), "1" (cnt), "a" (data) :
- "memory", "cc");
-}
-
-static inline void
-stosl(void *addr, int data, int cnt)
-{
- asm volatile("cld; rep stosl" :
- "=D" (addr), "=c" (cnt) :
- "0" (addr), "1" (cnt), "a" (data) :
- "memory", "cc");
-}
-
-struct segdesc;
-
-static inline void
-lgdt(struct segdesc *p, int size)
-{
- volatile ushort pd[3];
-
- pd[0] = size-1;
- pd[1] = (uint)p;
- pd[2] = (uint)p >> 16;
-
- asm volatile("lgdt (%0)" : : "r" (pd));
-}
-
-struct gatedesc;
-
-static inline void
-lidt(struct gatedesc *p, int size)
-{
- volatile ushort pd[3];
-
- pd[0] = size-1;
- pd[1] = (uint)p;
- pd[2] = (uint)p >> 16;
-
- asm volatile("lidt (%0)" : : "r" (pd));
-}
-
-static inline void
-ltr(ushort sel)
-{
- asm volatile("ltr %0" : : "r" (sel));
-}
-
-static inline uint
-readeflags(void)
-{
- uint eflags;
- asm volatile("pushfl; popl %0" : "=r" (eflags));
- return eflags;
-}
-
-static inline void
-loadgs(ushort v)
-{
- asm volatile("movw %0, %%gs" : : "r" (v));
-}
-
-static inline void
-cli(void)
-{
- asm volatile("cli");
-}
-
-static inline void
-sti(void)
-{
- asm volatile("sti");
-}
-
-static inline uint
-xchg(volatile uint *addr, uint newval)
-{
- uint result;
-
- // The + in "+m" denotes a read-modify-write operand.
- asm volatile("lock; xchgl %0, %1" :
- "+m" (*addr), "=a" (result) :
- "1" (newval) :
- "cc");
- return result;
-}
-
-static inline uint
-rcr2(void)
-{
- uint val;
- asm volatile("movl %%cr2,%0" : "=r" (val));
- return val;
-}
-
-static inline void
-lcr3(uint val)
-{
- asm volatile("movl %0,%%cr3" : : "r" (val));
-}
-
-//PAGEBREAK: 36
-// Layout of the trap frame built on the stack by the
-// hardware and by trapasm.S, and passed to trap().
-struct trapframe {
- // registers as pushed by pusha
- uint edi;
- uint esi;
- uint ebp;
- uint oesp; // useless & ignored
- uint ebx;
- uint edx;
- uint ecx;
- uint eax;
-
- // rest of trap frame
- ushort gs;
- ushort padding1;
- ushort fs;
- ushort padding2;
- ushort es;
- ushort padding3;
- ushort ds;
- ushort padding4;
- uint trapno;
-
- // below here defined by x86 hardware
- uint err;
- uint eip;
- ushort cs;
- ushort padding5;
- uint eflags;
-
- // below here only when crossing rings, such as from user to kernel
- uint esp;
- ushort ss;
- ushort padding6;
-};