diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/x86_64/arch.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/x86_64/arch.c b/arch/x86_64/arch.c index 68f59fe..0479a52 100644 --- a/arch/x86_64/arch.c +++ b/arch/x86_64/arch.c @@ -15,8 +15,62 @@ #include <garmos/arch.h> #include <garmos/types.h> +void prtset8(const uint16_t port, const uint8_t val) +{ + asm volatile("outb %0, %1" : : "a" (val), "Nd" (port)); +} + +void prtset16(const uint16_t port, const uint16_t val) +{ + asm volatile("outw %0, %1" : : "a" (val), "Nd" (port)); +} + +void prtset32(const uint16_t port, const uint32_t val) +{ + asm volatile("outl %0, %1" : : "a" (val), "Nd" (port)); +} + +uint8_t prtget8(const uint16_t port) +{ + uint8_t res; + + asm volatile("inb %1, %0" : "=a" (res) : "Nd" (port)); + + return res; +} + +uint16_t prtget16(const uint16_t port) +{ + uint16_t res; + + asm volatile("inw %1, %0" : "=a" (res) : "Nd" (port)); + + return res; +} + +uint32_t prtget32(const uint16_t port) +{ + uint32_t res; + + asm volatile("inl %1, %0" : "=a" (res) : "Nd" (port)); + + return res; +} + void regset8(const uint32_t reg, const uint8_t val) { volatile uint8_t *p = (volatile uint8_t *) reg; *p = val; } + +void regset16(const uint32_t reg, const uint16_t val) +{ + volatile uint16_t *p = (volatile uint16_t *) reg; + *p = val; +} + +void regset32(const uint32_t reg, const uint32_t val) +{ + volatile uint32_t *p = (volatile uint32_t *) reg; + *p = val; +} |