misc: changes from a long time ago

This commit is contained in:
2026-02-03 21:28:15 +00:00
parent c7d4463f7e
commit af0d97d6f5
10 changed files with 266 additions and 74 deletions

View File

@@ -1,39 +1,50 @@
#include <stdint.h>
uint8_t inportb(uint16_t port) {
uint8_t data;
__asm__ __volatile__("inb %1, %0" : "=a"(data) : "dN"(port));
return data;
uint8_t inportb(uint16_t port)
{
uint8_t data;
__asm__ __volatile__("inb %1, %0" : "=a"(data) : "dN"(port));
return data;
}
void outportb(uint16_t port, uint8_t data) {
__asm__ __volatile__("outb %1, %0" : : "dN"(port), "a"(data));
void outportb(uint16_t port, uint8_t data)
{
__asm__ __volatile__("outb %1, %0" : : "dN"(port), "a"(data));
}
uint16_t inportw(uint16_t port) {
uint16_t data;
__asm__ __volatile__("inw %1, %0" : "=a"(data) : "dN"(port));
return data;
uint16_t inportw(uint16_t port)
{
uint16_t data;
__asm__ __volatile__("inw %1, %0" : "=a"(data) : "dN"(port));
return data;
}
void outportw(uint16_t port, uint16_t data) {
__asm__ __volatile__("outw %1, %0" : : "dN"(port), "a"(data));
void outportw(uint16_t port, uint16_t data)
{
__asm__ __volatile__("outw %1, %0" : : "dN"(port), "a"(data));
}
uint32_t inportl(uint16_t port) {
uint32_t data;
__asm__ __volatile__("inl %%dx, %%eax" : "=a"(data) : "dN"(port));
return data;
uint32_t inportl(uint16_t port)
{
uint32_t data;
__asm__ __volatile__("inl %%dx, %%eax" : "=a"(data) : "dN"(port));
return data;
}
void outportl(uint16_t port, uint32_t data) {
__asm__ __volatile__("outl %%eax, %%dx" : : "dN"(port), "a"(data));
void outportl(uint16_t port, uint32_t data)
{
__asm__ __volatile__("outl %%eax, %%dx" : : "dN"(port), "a"(data));
}
void outportsw(uint16_t port, void *data, uint32_t size) {
__asm__ __volatile__("rep outsw" : "+S"(data), "+c"(size) : "d"(port));
void outportsw(uint16_t port, void *data, uint32_t size)
{
__asm__ __volatile__("rep outsw" : "+S"(data), "+c"(size) : "d"(port));
}
void inportsw(uint16_t port, unsigned char *data, unsigned long size) {
__asm__ __volatile__("rep insw" : "+D"(data), "+c"(size) : "d"(port) : "memory");
void inportsw(uint16_t port, unsigned char *data, unsigned long size)
{
__asm__ __volatile__("rep insw"
: "+D"(data), "+c"(size)
: "d"(port)
: "memory");
}