PC speaker: correct frequency in real mode

damn it
2022-03-06 22:11:01 -05:00 · 2022-03-06 22:11:01 -05:00 · 72c1116a89
parent 2f9d1e8c0f
commit 72c1116a89
1 changed files with 5 additions and 1 deletions
--- a/src/engine/platform/pcspkr.cpp
+++ b/src/engine/platform/pcspkr.cpp
@ -122,7 +122,11 @@ void DivPlatformPCSpeaker::beepFreq(int freq) {
    gettimeofday(&ie.time,NULL);
    ie.type=EV_SND;
    ie.code=SND_TONE;
-    ie.value=freq;
+    if (freq>0) {
+      ie.value=chipClock/freq;
+    } else {
+      ie.value=0;
+    }
    if (write(beepFD,&ie,sizeof(struct input_event))<0) {
      perror("error while writing frequency!");
    } else {