asm.c

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/*
WKern - A Bare Metal OS / Kernel I am maKing (For Fun)
Copyright (C) 2025  Wdboyes13
 
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/
 
#include <io/kio.h>
#include <types/nums.h>
 
#ifndef __clang__ // We do this to maKe ClangD shutup

inline void Outb(u16 port, u8 val) {
    __asm__ volatile("outb %0, %1" : : "a"(val), "Nd"(port));
}

inline u8 Inb(u16 port) {
    u8 ret;
    __asm__ volatile("inb %1, %0" : "=a"(ret) : "Nd"(port));
    return ret;
}

inline void Outw(u16 port, u16 val) {
    __asm__ volatile("outw %0, %1" : : "a"(val), "Nd"(port));
}

inline u16 Inw(u16 port) {
    u16 ret;
    __asm__ volatile("inw %1, %0" : "=a"(ret) : "Nd"(port));
    return ret;
}

inline void Outl(u16 port, u32 val) {
    __asm__ volatile("outl %0, %1" : : "a"(val), "Nd"(port));
}

inline u32 Inl(u16 port) {
    u32 ret;
    __asm__ volatile("inl %1, %0" : "=a"(ret) : "Nd"(port));
    return ret;
}

inline void Cli() { __asm__ volatile("cli"); }

inline void Sti() { __asm__ volatile("sti; nop; nop; nop"); }
 
#endif