Retro/pcem
Watch
1
0
Fork
You've already forked pcem
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Rewrote timer code.

Browse source 
The new code is based on timestamps, rather than delays. This eliminates the
need to update every timer in timer_process(), which cost a non-trivial amount
of CPU time on low-end machines.

This involved changes to every user of the timer code, so this change almost
certainly introduces bugs.
This commit is contained in:
SarahW 2018-08-02 22:06:10 +01:00
commit a7d006b637
79 changed files with 1050 additions and 1033 deletions
Download patch file Download diff file Expand all files Collapse all files

7
src/nvr_tc8521.c
View file

@ -11,7 +11,8 @@
#include "config.h"
#include "nmi.h"
static int nvr_onesec_time = 0, nvr_onesec_cnt = 0;
static pc_timer_t nvr_onesec_timer;
static int nvr_onesec_cnt = 0;
static void tc8521_onesec(void *p)
{
@ -21,7 +22,7 @@ static void tc8521_onesec(void *p)
tc8521_tick();
nvr_onesec_cnt = 0;
}
nvr_onesec_time += (int)(10000 * TIMER_USEC);
timer_advance_u64(&nvr_onesec_timer, 10000 * TIMER_USEC);
}
void write_tc8521(uint16_t addr, uint8_t val, void *priv)
@ -96,5 +97,5 @@ void tc8521_savenvr()
void nvr_tc8521_init()
{
io_sethandler(0x2C0, 0x10, read_tc8521, NULL, NULL, write_tc8521, NULL, NULL, NULL);
timer_add(tc8521_onesec, &nvr_onesec_time, TIMER_ALWAYS_ENABLED, NULL);
timer_add(&nvr_onesec_timer, tc8521_onesec, NULL, 1);
}