From a678fe4a4e6a3f810db22fa91a483c7be7d5a3a9 Mon Sep 17 00:00:00 2001
From: Ethan Sifferman <ethan@sifferman.dev>
Date: Sat, 29 Jul 2023 15:38:45 -0700
Subject: [PATCH] stop condition now checked on first instruction

---
 py65/monitor.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/py65/monitor.py b/py65/monitor.py
index 5726281..66c42d7 100644
--- a/py65/monitor.py
+++ b/py65/monitor.py
@@ -504,12 +504,11 @@ def _run(self, stopcodes):
 
         if not breakpoints:
             while True:
-                mpu.step()
                 if mem[mpu.pc] in stopcodes:
                     break
+                mpu.step()
         else:
             while True:
-                mpu.step()
                 pc = mpu.pc
                 if mem[pc] in stopcodes:
                     break
@@ -517,6 +516,7 @@ def _run(self, stopcodes):
                     msg = "Breakpoint %d reached."
                     self._output(msg % self._breakpoints.index(pc))
                     break
+                mpu.step()
 
         # Switch back to the previous input mode.
         console.restore_mode()