implemented spec change: now cell 127 always return 1

mu808.py

@@ -62,6 +62,7 @@ def ilexec(lno:int, cmd:int=0, x:int=0, y:int=0, z:int=0):
         if traceflag:
             print(f'PC: {lno} INSTR: {cmd} {x} {y} {z}')
         DMEM[0] = 0.0 # force the value at 0 to always be 0
+        DMEM[127] = 1.0 # force the value at 127 to always be 1
         data_override = False
         # perform a boundary check and prefetch the memory values
         bcheck = True