Modelling and Assertion-Based Verification of Run-Time Reconfigurable Designs Using Functional Programming Abstractions

Listing 4

Example properties for the AHB-based design.

1 - - Only one master at a time can have control

2 - - over the bus, so only one of the grant

3 - - signals can be High at a time.

4 pr1 g0 g1 rst=always

5     (

6     neg  $ (sig g0) /∖ (sig g1)

7    ) $ abort $ sig rst

8 - - If none of the masters is granted, any

9 - - request (not simultaneously) will lead

10 - - to a grant in the next clock cycle.

11 pr2 g0 g1 r1 rst = always

12    (

13     prev (neg((sig g0) ∖/ (sig g1)) /∖ (sig r1))

14        - -> (sig g1)

15    ) $ abort $ sig rst