void StartInterpreterCPU (usf_state_t * state) {
state->NextInstruction = NORMAL;
while(state->cpu_running) {
ExecuteInterpreterOpCode(state);
}
state->cpu_stopped = 1;
}
void RunFunction(usf_state_t * state, uint32_t address) {
uint32_t oldPC = state->PROGRAM_COUNTER, oldRA = state->GPR[31].UW[0], la = state->NextInstruction;
int callStack = 0;
state->NextInstruction = NORMAL;
state->PROGRAM_COUNTER = address;
while( (state->PROGRAM_COUNTER != oldRA) || callStack) {
if(state->PROGRAM_COUNTER == address)
callStack++;
ExecuteInterpreterOpCode(state);
if(state->PROGRAM_COUNTER == oldRA)
callStack--;
}
state->PROGRAM_COUNTER = oldPC;
state->GPR[31].UW[0] = oldRA;
state->NextInstruction = la;
}
void StartInterpreterCPU (usf_state_t * state) {
const int safety_count_max = 20000000;
int safety_count = safety_count_max;
size_t last_sample_buffer_count = state->sample_buffer_count;
state->NextInstruction = NORMAL;
while(state->cpu_running) {
ExecuteInterpreterOpCode(state);
if (!--safety_count) {
if (last_sample_buffer_count == state->sample_buffer_count) {
DisplayError( state, "Emulator core is not generating any samples after 20 million instructions" );
break;
} else {
safety_count = safety_count_max;
last_sample_buffer_count = state->sample_buffer_count;
}
}
}
state->cpu_stopped = 1;
}