diff options
| -rw-r--r-- | src/drivers/cpu.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/src/drivers/cpu.c b/src/drivers/cpu.c index 945dc4a..ba8c66f 100644 --- a/src/drivers/cpu.c +++ b/src/drivers/cpu.c @@ -6,44 +6,43 @@ u8 inb(u16 port) { u8 value; - __asm__("inb %1, %0" : "=a"(value) : "Nd"(port)); + __asm__ volatile("inb %1, %0" : "=a"(value) : "Nd"(port)); return value; } u16 inw(u16 port) { u16 value; - __asm__("inw %1, %0" : "=a"(value) : "Nd"(port)); + __asm__ volatile("inw %1, %0" : "=a"(value) : "Nd"(port)); return value; } u32 inl(u16 port) { u32 value; - __asm__("inl %1, %0" : "=a"(value) : "Nd"(port)); + __asm__ volatile("inl %1, %0" : "=a"(value) : "Nd"(port)); return value; } -// TODO: Fix optimization issues with insl -void __attribute__((optimize("O0"))) insl(u16 port, void *addr, int n) +void insl(u16 port, void *addr, int n) { - __asm__("cld; rep insl" - : "=D"(addr), "=c"(n) - : "d"(port), "0"(addr), "1"(n) - : "memory", "cc"); + __asm__ volatile("cld; rep insl" + : "=D"(addr), "=c"(n) + : "d"(port), "0"(addr), "1"(n) + : "memory", "cc"); } void outb(u16 port, u8 data) { - __asm__("outb %0, %1" ::"a"(data), "Nd"(port)); + __asm__ volatile("outb %0, %1" ::"a"(data), "Nd"(port)); } void outw(u16 port, u16 data) { - __asm__("outw %0, %1" ::"a"(data), "Nd"(port)); + __asm__ volatile("outw %0, %1" ::"a"(data), "Nd"(port)); } void outl(u16 port, u32 data) { - __asm__("outl %0, %1" ::"a"(data), "Nd"(port)); + __asm__ volatile("outl %0, %1" ::"a"(data), "Nd"(port)); } |