21 lines
356 B
ArmAsm
21 lines
356 B
ArmAsm
/* https://github.com/cirosantilli/x86-bare-metal-examples#pit_sleep_ticks */
|
|
|
|
#include "common.h"
|
|
BEGIN
|
|
IVT_PIT_SETUP
|
|
PIT_GENERATE_FREQUENCY
|
|
PIT_SET_FREQ 1000
|
|
sti
|
|
loop:
|
|
PUTC $'a
|
|
PUTC $'\n
|
|
PIT_SLEEP_TICKS $500
|
|
jmp loop
|
|
PIT_SLEEP_TICKS_GLOBALS
|
|
handler:
|
|
cli
|
|
PIT_SLEEP_TICKS_HANDLER_UPDATE
|
|
PIC_EOI
|
|
sti
|
|
iret
|