@ -28,12 +28,14 @@ Except when bit0 differs from bit1, but bit2 (activity) is 0:
@@ -28,12 +28,14 @@ Except when bit0 differs from bit1, but bit2 (activity) is 0:
Logic values are stored in numpy arrays of data type ` ` np . uint8 ` ` .
The axis convention is as follows :
* The * * last * * axis goes along patterns / vectors . I . e . ` ` values [ . . . , 0 ] ` ` is pattern 0 , ` ` values [ . . . , 1 ] ` ` is pattern 1 , etc .
* The * * second - to - last * * axis goes along the I / O and flip - flops of circuits . For a circuit ` ` c ` ` , this axis is usually
` ` len ( c . s_nodes ) ` ` long . The values of all inputs , outputs and flip - flops are stored within the same array and the location
along the second - to - last axis is determined by the order in ` ` c . s_nodes ` ` .
Two storage formats are used in KyuPy :
* ` ` mv . . . ` ` ( for " multi-valued " ) : Each logic value is stored in the least significant 3 bits of ` ` np . uint8 ` ` .
* ` ` bp . . . ` ` ( for " bit-parallel " ) : Groups of 8 logic values are stored as three ` ` np . uint8 ` ` . This format is used
for bit - parallel logic simulations . It is also more memory - efficient .