void runloop_tick(runloop_state_t *state) {
long long now = get_time_nsec();
long long ticks_between = now - state->last_end;
float seconds = (float)ticks_between / (float)1000000000;
int cycles = seconds * (float)state->asic->clock_rate;
if (cycles == 0)
return;
runloop_tick_cycles(state, cycles);
state->last_end = now;
}
int command_run(debugger_state_t *state, int argc, char **argv) {
state->asic->stopped = 0;
uint16_t instructions = -1;
struct run_disassemble_state dstate;
dstate.memory.read_byte = run_command_read_byte;
dstate.memory.current = state->asic->cpu->registers.PC;
dstate.state = state;
int oldHalted = 0;
int isFirstInstruction = 1;
if ((argc == 2 && strcmp(argv[1], "--help") == 0) || argc > 2) {
state->print(state, "run [instructions] - run a specified number of instructions\n"
" If no number is specified, the emulator will run until interrupted (^C).\n");
return 0;
} else if(argc == 2) {
instructions = parse_expression_z80e(state, argv[1]);
state->debugger->state = DEBUGGER_LONG_OPERATION;
for (; instructions > 0; instructions--) {
hook_on_before_execution(state->asic->hook, state->asic->cpu->registers.PC);
if (!isFirstInstruction && state->asic->stopped) {
state->asic->stopped = 0;
break;
}
if (isFirstInstruction) {
state->asic->stopped = 0;
isFirstInstruction = 0;
}
if (state->debugger->flags.echo) {
if (!state->asic->cpu->halted) {
state->print(state, "0x%04X: ", state->asic->cpu->registers.PC);
dstate.memory.current = state->asic->cpu->registers.PC;
parse_instruction(&(dstate.memory), run_command_write, state->debugger->flags.knightos);
state->print(state, "\n");
}
} else {
if (state->asic->cpu->halted && !oldHalted) {
state->print(state, "CPU is halted\n");
}
}
if (state->debugger->flags.echo_reg) {
print_state(&state->asic->cpu->registers);
}
oldHalted = state->asic->cpu->halted;
int iff1 = state->asic->cpu->IFF1;
int iff2 = state->asic->cpu->IFF2;
if (state->debugger->flags.nointonstep) {
state->asic->cpu->IFF1 = 0;
state->asic->cpu->IFF2 = 0;
}
runloop_tick_cycles(state->asic->runloop, 1);
if (state->debugger->flags.nointonstep) {
state->asic->cpu->IFF1 = iff1;
state->asic->cpu->IFF2 = iff2;
}
hook_on_after_execution(state->asic->hook, state->asic->cpu->registers.PC);
if (state->asic->stopped) {
state->asic->stopped = 0;
break;
}
}
state->debugger->state = DEBUGGER_ENABLED;
return 0;
}
state->debugger->state = DEBUGGER_LONG_OPERATION_INTERRUPTABLE;
while (1) {
hook_on_before_execution(state->asic->hook, state->asic->cpu->registers.PC);
if (!isFirstInstruction && state->asic->stopped) {
state->asic->stopped = 0;
break;
}
if (isFirstInstruction) {
state->asic->stopped = 0;
isFirstInstruction = 0;
}
if (state->debugger->flags.echo) {
if (!state->asic->cpu->halted) {
state->print(state, "0x%04X: ", state->asic->cpu->registers.PC);
dstate.memory.current = state->asic->cpu->registers.PC;
parse_instruction(&(dstate.memory), run_command_write, state->debugger->flags.knightos);
state->print(state, "\n");
}
} else {
if (state->asic->cpu->halted && !oldHalted) {
if (state->debugger->flags.auto_on) {
if (!((ti_bw_lcd_t *)state->asic->cpu->devices[0x10].device)->display_on) {
state->asic->cpu->halted = 0;
state->print(state, "Turned on calculator via auto_on\n");
}
} else {
state->print(state, "CPU is halted\n");
}
}
}
if (state->debugger->flags.echo_reg) {
print_state(&state->asic->cpu->registers);
}
oldHalted = state->asic->cpu->halted;
runloop_tick_cycles(state->asic->runloop, 1);
hook_on_before_execution(state->asic->hook, state->asic->cpu->registers.PC);
if (state->asic->stopped) {
state->debugger->state = DEBUGGER_ENABLED;
return 0;
}
}
state->debugger->state = DEBUGGER_ENABLED;
return 0;
}
