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Fixes by EnjoyDigital to have more accurate timing for fast cores.

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This commit is contained in:
Bruno Levy
2021-12-03 22:36:43 +01:00
parent 6d4eab4346
commit 2d4bf8c30d
2 changed files with 5 additions and 5 deletions
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0
Attic/femtorv32_generic.v → Attic/femtorv32_2CPI_linear_flow.v
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10
FemtoRV/FIRMWARE/LiteX/DemoBundle/tinyraytracer.c
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@@ -146,17 +146,17 @@ static inline void stats_end_pixel(void) {
static inline void stats_end_frame(void) {
// Not using floats because my own version of printf()
// in libfemtorv does not support them.
uint32_t seconds = (uint32_t)(frame_Kticks / (CONFIG_CLOCK_FREQUENCY / 1000));
uint32_t milliseconds = (uint32_t)(frame_Kticks / (CONFIG_CLOCK_FREQUENCY / 1000000));
uint32_t seconds = milliseconds / 1000;
uint32_t minutes = seconds / 60;
uint32_t rem_seconds = seconds % 60;
uint32_t MHz = CONFIG_CLOCK_FREQUENCY / 1000000;
uint32_t pixels = OLED_WIDTH*OLED_HEIGHT;
float raystones = 1000.0 * ((float)pixels / (float)(seconds*MHz));
float raystones = 1000000.0 * ((float)pixels / (float)(milliseconds*MHz));
printf(
"Elapsed time=%d:%s%d\n",
(int)minutes,
rem_seconds >= 10 ? "" : "0", (int)rem_seconds
"Elapsed time=%02d:%02d (%d milliseconds)\n",
(int)minutes, (int)rem_seconds, (int)milliseconds
);
printf(