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Kernel: Fix PIT::prescheduler_sleep_ns 

I don't even know what I was doing here :D
This commit is contained in:
Bananymous 2025-07-19 01:25:46 +03:00
parent 5df6270e32
commit a0d1a9ad67
1 changed files with 4 additions and 7 deletions
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11
kernel/kernel/Timer/PIT.cpp
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@ -15,10 +15,10 @@
#define SELECT_CHANNEL1 0x40 #define SELECT_CHANNEL1 0x40
#define SELECT_CHANNEL2 0x80 #define SELECT_CHANNEL2 0x80
#define ACCESS_HI 0x10 #define ACCESS_LO 0x10
#define ACCESS_LO 0x20 #define ACCESS_HI 0x20
#define MODE_RATE_GENERATOR 0x05 #define MODE_RATE_GENERATOR 0x04
#define BASE_FREQUENCY 1193182 #define BASE_FREQUENCY 1193182
@ -116,10 +116,7 @@ namespace Kernel
while (elapsed_ticks < target_ticks) while (elapsed_ticks < target_ticks)
{ {
const uint8_t current_ticks = IO::inb(TIMER0_CTL); const uint8_t current_ticks = IO::inb(TIMER0_CTL);
if (last_ticks <= current_ticks) elapsed_ticks += static_cast<uint8_t>(last_ticks - current_ticks);
elapsed_ticks += current_ticks - last_ticks;
else
elapsed_ticks += 0xFF + current_ticks - last_ticks;
last_ticks = current_ticks; last_ticks = current_ticks;
} }