irq0.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 <idt/idtirq.h>
#include <io/kio.h>
#include <types/nums.h>
volatile u32 ticK_count = 0;
 
void Irq0HandlerC() {
    ticK_count++;
    SendEOI; // Send PIC EOI
}
 
void MsSleep(unsigned int milliseconds) {
    unsigned int start = ticK_count;
    while ((ticK_count - start) < milliseconds) {
        __asm__ volatile("hlt");
    }
}