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boreddevnl
2026-03-04 09:54:57 +01:00
parent cc752052dc
commit 903d4e0510
8 changed files with 563 additions and 13 deletions
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12
src/kernel/kutils.c
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@@ -110,3 +110,15 @@ void k_reboot(void) {
void k_shutdown(void) {
outw(0x604, 0x2000);
}
void k_beep(int freq, int ms) {
if (freq <= 0) return;
int div = 1193180 / freq;
outb(0x43, 0xB6);
outb(0x42, div & 0xFF);
outb(0x42, (div >> 8) & 0xFF);
outb(0x61, inb(0x61) | 0x03);
k_sleep(ms);
outb(0x61, inb(0x61) & 0xFC);
}