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Rewrote timer code.

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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
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8
src/keyboard_pcjr.c
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@ -32,6 +32,8 @@ struct
uint8_t pa;
uint8_t pb;
pc_timer_t send_delay_timer;
} keyboard_pcjr;
static uint8_t key_queue[16];
@ -39,8 +41,7 @@ static int key_queue_start = 0, key_queue_end = 0;
void keyboard_pcjr_poll()
{
keybsenddelay += (220 * TIMER_USEC);
timer_advance_u64(&keyboard_pcjr.send_delay_timer, (220 * TIMER_USEC));
if (key_queue_start != key_queue_end && !keyboard_pcjr.serial_pos && !keyboard_pcjr.latched)
{
@ -127,7 +128,6 @@ void keyboard_pcjr_write(uint16_t port, uint8_t val, void *priv)
keyboard_pcjr.pb = val;
timer_process();
timer_update_outstanding();
speaker_update();
speaker_gated = val & 1;
@ -205,5 +205,5 @@ void keyboard_pcjr_init()
keyboard_send = keyboard_pcjr_adddata;
keyboard_poll = keyboard_pcjr_poll;
timer_add(keyboard_pcjr_poll, &keybsenddelay, TIMER_ALWAYS_ENABLED, NULL);
timer_add(&keyboard_pcjr.send_delay_timer, keyboard_pcjr_poll, NULL, 1);
}