Add perf test

1 files changed, 6 insertions, 0 deletions

diff --git a/atk16_emu/emu.py b/atk16_emu/emu.py
index 4257636..f0671bd 100644
--- a/atk16_emu/emu.py
+++ b/atk16_emu/emu.py
@@ -2,6 +2,7 @@ import random
 from typing import Literal
 from dataclasses import dataclass
 import sys
+import time
 from .opcodes import *
 from .colors import C
 
@@ -278,6 +279,11 @@ class Machine:
     while self.running:
       self.step()
 
+      # TODO limit emulation speed to 393359.375 Hz ~= 2542 ns per instruction
+      #      this is in order to have similar speed as the actual machine
+      #      see: test_emulation_speed.py
+      # naive time.sleep is slow and not accurate enough
+
   def check_nth_flag(self, n: int) -> bool:
     match n:
       case 0: return self.fr.carry