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cycles_adjust is too small to be worth calculating

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Aaron Culliney 2014-03-22 16:39:07 -07:00
parent f34eff338b
commit a95354d87c
1 changed files with 0 additions and 8 deletions
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8
src/timing.c
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@ -173,7 +173,6 @@ void cpu_thread(void *dummyptr) {
do do
{ {
g_nCumulativeCycles = 0; g_nCumulativeCycles = 0;
static int16_t cycles_adjust = 0;
LOG("cpu_thread : begin main loop ..."); LOG("cpu_thread : begin main loop ...");
clock_gettime(CLOCK_MONOTONIC, &t0); clock_gettime(CLOCK_MONOTONIC, &t0);
@ -198,7 +197,6 @@ void cpu_thread(void *dummyptr) {
// set up increment & decrement counters // set up increment & decrement counters
cpu65_cycles_to_execute = (g_fCurrentCLK6502 / 1000); // g_fCurrentCLK6502 * EXECUTION_PERIOD_NSECS / NANOSECONDS cpu65_cycles_to_execute = (g_fCurrentCLK6502 / 1000); // g_fCurrentCLK6502 * EXECUTION_PERIOD_NSECS / NANOSECONDS
cpu65_cycles_to_execute += g_nCpuCyclesFeedback; cpu65_cycles_to_execute += g_nCpuCyclesFeedback;
cpu65_cycles_to_execute -= cycles_adjust;
if (cpu65_cycles_to_execute < 0) if (cpu65_cycles_to_execute < 0)
{ {
cpu65_cycles_to_execute = 0; cpu65_cycles_to_execute = 0;
@ -239,12 +237,6 @@ void cpu_thread(void *dummyptr) {
} }
} }
} while (is_debugging); } while (is_debugging);
cycles_adjust = cpu65_cycles_to_execute; // counter is decremented in cpu65_run()
if (cycles_adjust < 0)
{
cycles_adjust = ~cycles_adjust +1; // cycles_adjust *= -1
}
#ifndef NDEBUG #ifndef NDEBUG
dbg_cycles_executed += cpu65_cycle_count; dbg_cycles_executed += cpu65_cycle_count;
#endif #endif