Merge pull request #530 from fjtrujy/time_accuracy

uyjulian · web-flow · commit f5db5e075517 · 2024-02-18T07:06:39.000-06:00
Improve timer accuracy
diff --git a/ee/kernel/src/timer.c b/ee/kernel/src/timer.c
@@ -284,7 +284,7 @@ void SetNextComp(u64 time_now)
     while (timer_current != NULL)
     {
         a1 = timer_current->timer_schedule + timer_current->timer_base_time - timer_current->timer_base_count;
-        if (a1 < (a0 + 0x7333))
+        if (a1 < (a0 + 0x733))
         {
             a0 = a1;
         }
@@ -294,9 +294,9 @@ void SetNextComp(u64 time_now)
         }
         timer_current = timer_current->timer_next;
     }
-    if ((s64)(a0 - time_now) < (s64)0x7333)
+    if (a0 < (time_now + 0x733))
     {
-        SetT2_COMP((*T2_COUNT) + (0x7333 >> (((*T2_MODE) & 3) << 2)));
+        SetT2_COMP((*T2_COUNT) + (0x733 >> (((*T2_MODE) & 3) << 2)));
         SetT2_MODE((*T2_MODE) & (~(1 << 11)));
     }
     else

Original file line number	Diff line number	Diff line change
`@@ -284,7 +284,7 @@ void SetNextComp(u64 time_now)`
`284`	`284`	`while (timer_current != NULL)`
`285`	`285`	`{`
`286`	`286`	`a1 = timer_current->timer_schedule + timer_current->timer_base_time - timer_current->timer_base_count;`
`287`		`- if (a1 < (a0 + 0x7333))`
	`287`	`+ if (a1 < (a0 + 0x733))`
`288`	`288`	`{`
`289`	`289`	`a0 = a1;`
`290`	`290`	`}`
`@@ -294,9 +294,9 @@ void SetNextComp(u64 time_now)`
`294`	`294`	`}`
`295`	`295`	`timer_current = timer_current->timer_next;`
`296`	`296`	`}`
`297`		`- if ((s64)(a0 - time_now) < (s64)0x7333)`
	`297`	`+ if (a0 < (time_now + 0x733))`
`298`	`298`	`{`
`299`		`- SetT2_COMP((T2_COUNT) + (0x7333 >> (((T2_MODE) & 3) << 2)));`
	`299`	`+ SetT2_COMP((T2_COUNT) + (0x733 >> (((T2_MODE) & 3) << 2)));`
`300`	`300`	`SetT2_MODE((*T2_MODE) & (~(1 << 11)));`
`301`	`301`	`}`
`302`	`302`	`else`