From 3c1843ab4b9f6ece3e14e1d6383fa8f727636e1f Mon Sep 17 00:00:00 2001
From: Daniele Verducci <daniele.verducci@ichibi.eu>
Date: Wed, 25 May 2022 23:41:10 +0200
Subject: [PATCH] WIP implementing Pat80 IO device

TODO: allow to dynamically load io devices modules to not override the
original one
---
 src/z80/io.py | 25 +++++++++----------------
 1 file changed, 9 insertions(+), 16 deletions(-)

diff --git a/src/z80/io.py b/src/z80/io.py
index 74aa3f2..773679e 100644
--- a/src/z80/io.py
+++ b/src/z80/io.py
@@ -17,7 +17,7 @@ class Interruptable(object):
         pass
     
 class Console(QTextEdit, IO):
-    _addresses = [0x80, 0x81]
+    _addresses = [0x00, 0x01]
     _wrt_sgnl = Signal(int, int)
     def __init__(self, interruptable):
         #assert isinstance(interruptable, Interruptable )
@@ -37,17 +37,15 @@ class Console(QTextEdit, IO):
         
     def read(self, address):
         print ("READ ", address)
-        if address == 0x80:
-            v =  ((1 << 1) | # RTS
-                  ((self._send_queue is not None) << 0) | # interrupt?
-                  0 )
-            return v
-        elif address == 0x81:
+        # Sono invertiti? Per colpa dell'emulatore?
+        if address == 0x01:
+            pass
+        elif address == 0x00:
             if self._send_queue is not None:
                 val = self._send_queue
                 self._send_queue = None
                 return val
-        return 0x13
+        return 0x0
     
     
     @Slot(int, int)
@@ -56,15 +54,10 @@ class Console(QTextEdit, IO):
         self._wrt_sgnl.emit(address, value)
         
     def _write(self, address, value):
-        if address == 0x80:
+        if address == 0x01:
             pass
-        elif address == 0x81:
-            if value <  128 and value > 10:
-                self.setText(self.toPlainText()+chr(value))
-            else:
-                self.setText(self.toPlainText()+".")
-        else:
-            raise Exception("Trying Console IO with wrong address")
+        elif address == 0x0:
+            self.setText(self.toPlainText()+chr(value))
         
     def keyPressEvent(self, event):
 #        print ("Event:", event)