o cleanup

tools/bsnes/snes/scheduler/scheduler.cpp

@@ -0,0 +1,56 @@
+#ifdef SNES_CPP
+
+Scheduler scheduler;
+
+void threadentry_cpu() { cpu.enter(); }
+void threadentry_smp() { smp.enter(); }
+void threadentry_ppu() { ppu.enter(); }
+void threadentry_dsp() { dsp.enter(); }
+
+void Scheduler::enter() {
+  switch(clock.active) {
+    case THREAD_CPU: co_switch(thread_cpu); break;
+    case THREAD_SMP: co_switch(thread_smp); break;
+    case THREAD_PPU: co_switch(thread_ppu); break;
+    case THREAD_DSP: co_switch(thread_dsp); break;
+  }
+}
+
+void Scheduler::exit() {
+  co_switch(thread_snes);
+}
+
+void Scheduler::init() {
+  clock.cpu_freq = snes.region() == SNES::NTSC
+                 ? snes.config.cpu.ntsc_clock_rate
+                 : snes.config.cpu.pal_clock_rate;
+  clock.smp_freq = snes.region() == SNES::NTSC
+                 ? snes.config.smp.ntsc_clock_rate
+                 : snes.config.smp.pal_clock_rate;
+
+  clock.active = THREAD_CPU;
+  clock.cpuppu = 0;
+  clock.cpusmp = 0;
+  clock.smpdsp = 0;
+
+  if(thread_cpu) co_delete(thread_cpu);
+  if(thread_smp) co_delete(thread_smp);
+  if(thread_ppu) co_delete(thread_ppu);
+  if(thread_dsp) co_delete(thread_dsp);
+
+  thread_snes = co_active();
+  thread_cpu  = co_create(65536 * sizeof(void*), threadentry_cpu);
+  thread_smp  = co_create(65536 * sizeof(void*), threadentry_smp);
+  thread_ppu  = co_create(65536 * sizeof(void*), threadentry_ppu);
+  thread_dsp  = co_create(65536 * sizeof(void*), threadentry_dsp);
+}
+
+Scheduler::Scheduler() {
+  thread_snes = 0;
+  thread_cpu  = 0;
+  thread_smp  = 0;
+  thread_ppu  = 0;
+  thread_dsp  = 0;
+}
+
+#endif  //ifdef SNES_CPP