diff options
| author | dzwdz | 2022-03-27 14:47:50 +0200 |
|---|---|---|
| committer | dzwdz | 2022-03-27 14:47:50 +0200 |
| commit | 45283c43460900d080478973c873339b5db3013e (patch) | |
| tree | cde5d7afdf54fa57b07c8aa5f2a61cc663261445 /src/kernel/arch/i386/tty/tty.c | |
| parent | cc16c5d9847da67b3ff369c13712fcae4bebe2ae (diff) | |
kernel/tty: poll only on IRQs, don't burn cycles
Diffstat (limited to 'src/kernel/arch/i386/tty/tty.c')
| -rw-r--r-- | src/kernel/arch/i386/tty/tty.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/kernel/arch/i386/tty/tty.c b/src/kernel/arch/i386/tty/tty.c index f3fecf3..a63c16a 100644 --- a/src/kernel/arch/i386/tty/tty.c +++ b/src/kernel/arch/i386/tty/tty.c @@ -19,6 +19,7 @@ void tty_read(char *buf, size_t len) { for (;;) { if (serial_poll_read(&buf[i])) break; if (keyboard_poll_read(&buf[i])) break; + asm("hlt" ::: "memory"); } } } |