diff options
Diffstat (limited to 'src/kernel/io/io.c')
| -rw-r--r-- | src/kernel/io/io.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/kernel/io/io.c b/src/kernel/io/io.c index 803a78a..cd03408 100644 --- a/src/kernel/io/io.c +++ b/src/kernel/io/io.c @@ -4,21 +4,21 @@ uint8_t inb(uint16_t port) { uint8_t value; - asm("inb %1, %0" : "=a"(value) : "Nd"(port)); + asm volatile("inb %1, %0" : "=a"(value) : "Nd"(port)); return value; } uint16_t inw(uint16_t port) { uint16_t value; - asm("inw %1, %0" : "=a"(value) : "Nd"(port)); + asm volatile("inw %1, %0" : "=a"(value) : "Nd"(port)); return value; } uint32_t inl(uint16_t port) { uint32_t value; - asm("inl %1, %0" : "=a"(value) : "Nd"(port)); + asm volatile("inl %1, %0" : "=a"(value) : "Nd"(port)); return value; } @@ -39,17 +39,17 @@ void hlt() void outb(uint16_t port, uint8_t data) { - asm("outb %0, %1" ::"a"(data), "Nd"(port)); + asm volatile("outb %0, %1" ::"a"(data), "Nd"(port)); } void outw(uint16_t port, uint16_t data) { - asm("outw %0, %1" ::"a"(data), "Nd"(port)); + asm volatile("outw %0, %1" ::"a"(data), "Nd"(port)); } void outl(uint16_t port, uint32_t data) { - asm("outl %0, %1" ::"a"(data), "Nd"(port)); + asm volatile("outl %0, %1" ::"a"(data), "Nd"(port)); } void init_serial() |