static inline uint8_t
inb (uint16_t port)
{
+ /* See [IA32-v2a] "IN". */
uint8_t data;
asm volatile ("inb %w1,%0" : "=a" (data) : "d" (port));
return data;
static inline void
insb (uint16_t port, void *addr, size_t cnt)
{
+ /* See [IA32-v2a] "INS". */
asm volatile ("cld; repne; insb"
: "=D" (addr), "=c" (cnt)
: "d" (port), "0" (addr), "1" (cnt)
inw (uint16_t port)
{
uint16_t data;
+ /* See [IA32-v2a] "IN". */
asm volatile ("inw %w1,%0" : "=a" (data) : "d" (port));
return data;
}
static inline void
insw (uint16_t port, void *addr, size_t cnt)
{
+ /* See [IA32-v2a] "INS". */
asm volatile ("cld; repne; insw"
: "=D" (addr), "=c" (cnt)
: "d" (port), "0" (addr), "1" (cnt)
static inline uint32_t
inl (uint16_t port)
{
+ /* See [IA32-v2a] "IN". */
uint32_t data;
asm volatile ("inl %w1,%0" : "=a" (data) : "d" (port));
return data;
static inline void
insl (uint16_t port, void *addr, size_t cnt)
{
+ /* See [IA32-v2a] "INS". */
asm volatile ("cld; repne; insl"
: "=D" (addr), "=c" (cnt)
: "d" (port), "0" (addr), "1" (cnt)
static inline void
outb (uint16_t port, uint8_t data)
{
+ /* See [IA32-v2b] "OUT". */
asm volatile ("outb %0,%w1" : : "a" (data), "d" (port));
}
static inline void
outsb (uint16_t port, const void *addr, size_t cnt)
{
+ /* See [IA32-v2b] "OUTS". */
asm volatile ("cld; repne; outsb"
: "=S" (addr), "=c" (cnt)
: "d" (port), "0" (addr), "1" (cnt)
static inline void
outw (uint16_t port, uint16_t data)
{
+ /* See [IA32-v2b] "OUT". */
asm volatile ("outw %0,%w1" : : "a" (data), "d" (port));
}
static inline void
outsw (uint16_t port, const void *addr, size_t cnt)
{
+ /* See [IA32-v2b] "OUTS". */
asm volatile ("cld; repne; outsw"
: "=S" (addr), "=c" (cnt)
: "d" (port), "0" (addr), "1" (cnt)
static inline void
outl (uint16_t port, uint32_t data)
{
+ /* See [IA32-v2b] "OUT". */
asm volatile ("outl %0,%w1" : : "a" (data), "d" (port));
}
static inline void
outsl (uint16_t port, const void *addr, size_t cnt)
{
+ /* See [IA32-v2b] "OUTS". */
asm volatile ("cld; repne; outsl"
: "=S" (addr), "=c" (cnt)
: "d" (port), "0" (addr), "1" (cnt)