Remove blocking_getc at $f005

CHANGES.txt

@@ -1,5 +1,10 @@
 0.19-dev (Next Release)
 
+  - Blocking character input at $F005 has been removed.  The I/O area
+    was designed to be compatible with Michal Kowalski's simulator,
+    and it uses this address for another purpose.  Examples that depended
+    on $F005 have been changed to use $F004.
+
 0.18 (2014-01-30)
 
   - Fixed a bug in RTS where popping $FFFF off the stack would cause

examples/65Org16.boot.asm

@@ -15,7 +15,7 @@ START = $FFFFFe00
 
 ; I/O is memory-mapped in py65:
 PUTC     = $f001
-GETC     = $f005 ; blocking input
+GETC     = $f004
 
 ; Note that Hex format for 65Org16 uses ';' not ':' as the start of record mark
 ; also note that some fields are now composed of 16-bit elements:
@@ -139,6 +139,7 @@ HDEROK  jsr     PUTSTRI
 
 ; For py65, the input routine will block until a character arrives
 GETSER  lda     GETC
+        beq     GETSER
         rts
 
 ; get four ascii chars, adding both octets into the checksum

examples/swapcase.asm

@@ -16,13 +16,14 @@
 
 ; I/O is memory-mapped in py65:
 PUTC     = $f001
-GETC     = $f005 ; blocking input 
+GETC     = $f004
 
 ; the py65 hexload boot ROM will only load to $0200
  .ORG $200
 
 another
         lda GETC
+        beq another
         eor #$20        ; swap upper and lower case as a demo
         sta PUTC
         jmp another

py65/monitor.py

@@ -209,13 +209,9 @@ class Monitor(cmd.Cmd):
                 byte = 0
             return byte
 
-        def blocking_getc(address):
-            return ord(console.getch(self.stdin))
-
         m = ObservableMemory(addrWidth=self.addrWidth)
         m.subscribe_to_write([0xF001], putc)
         m.subscribe_to_read([0xF004], getc)
-        m.subscribe_to_read([0xF005], blocking_getc)
 
         self._mpu.memory = m