christoph/lecture-operating-system-development
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merged cleanup

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This commit is contained in:
Christoph Urlacher
2022-07-24 21:12:31 +02:00
parent 5ff3d72bfd
commit 6481bae5f6
92 changed files with 663 additions and 755 deletions
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10
c_os/devices/PIT.cc
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@ -30,7 +30,7 @@ void PIT::interval(int us) {
control.outb(0x36); // Zähler 0 Mode 3
unsigned int cntStart = (1193180.0 / 1000000.0) * us; // 1.19Mhz PIT
unsigned int cntStart = static_cast<unsigned int>((1193180.0 / 1000000.0) * us); // 1.19Mhz PIT
data0.outb(cntStart & 0xFF); // Zaehler-0 laden (Lobyte)
data0.outb(cntStart >> 8); // Zaehler-0 laden (Hibyte)
@ -75,10 +75,10 @@ void PIT::trigger() {
/* hier muss Code eingefuegt werden */
// Indicator
if (systime - this->last_indicator_refresh >= 10) {
this->indicator_pos = (this->indicator_pos + 1) % 4;
CGA::show(79, 0, this->indicator[this->indicator_pos]);
this->last_indicator_refresh = systime;
if (systime - last_indicator_refresh >= 10) {
indicator_pos = (indicator_pos + 1) % 4;
CGA::show(79, 0, indicator[indicator_pos]);
last_indicator_refresh = systime;
}
// Preemption