shockrah/jankos
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

timer wait behavior is really fucked and debugging this is an awful pain so juust check todos

Browse Source
This commit is contained in:
shockrahwow 2019-11-29 00:46:42 -08:00
parent e3317e5d64
commit 1fb8c16514
2 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
pit.c
View File

@ -4,7 +4,7 @@
#include "serial.h" #include "serial.h"
#include "stlio.h" #include "stlio.h"
u32 timer_ticks = 0; volatile u32 timer_ticks = 0;
void inc_ticks(struct cpu_reg_state* cpu) { void inc_ticks(struct cpu_reg_state* cpu) {
timer_ticks++; timer_ticks++;
@ -13,6 +13,10 @@ void inc_ticks(struct cpu_reg_state* cpu) {
} }
} }
void timer_wait(u32 time) {
u32 ticks = time + timer_ticks;
while(timer_ticks < ticks);
}
void pit_install_timer(void) { void pit_install_timer(void) {
init_irq_handler(0, inc_ticks); // timer interrupt request falls into int 0 init_irq_handler(0, inc_ticks); // timer interrupt request falls into int 0
} }

4
pit.h
View File

@ -9,4 +9,6 @@
void inc_ticks(struct cpu_reg_state*); void inc_ticks(struct cpu_reg_state*);
void pit_install_timer(void); void timer_wait(u32);
void pit_install_timer(void);