Hello to all I'm about to write a simulator for a microcontroller in python (why python? because I love it!!!)
but I have a problem. The registry of this processor are all 8 bit long (and 10 bit for some other strange register) and I need to simulate the fixed point behaviour of the register, and to access the single bit. f.x. (this is a pseudo python session, only for understanding) >>> reg1 = fixed_int(8) >>> reg2 = fixed_int(10) >>> reg1[0].set() or >>> reg1[0] = 1 # or True? how to rapresent a binary bit >>> reg1[0] 1 >>> reg1[1] 0 >>> reg1[9] <exception .... blah blah not in range> >>> reg2 = 0x7FE # in binary 11111111110 , or 11 bit long >>> reg2 0x7FE #or 1111111110, the memorization truncate the upper bits ( or perhaps generate an exception?) >>> reg2 += 0x02 #the result is 10000000000, again not contained in 10 bit >>> reg2 0x00 # truncated again >>> myprocessor.flags['z'] 1 # or True? Z flag indicated an overflow in arithmetic operations Is possibile to do so in python? thanks -- http://mail.python.org/mailman/listinfo/python-list