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Concurrent statements


This section describes concurrent constructs that can appear in a design. Concurrent statements may be used in architecture and block bodies. Concurrent statements operate concurrently or asynchronously, and the order in which they appear in the program is arbitrary. The concurrent statements are listed in the following rule: 
concurrent-statement : block-statement | process-statement |
    concurrent-procedure-call | concurrent-assertion-statement |
    concurrent-signal-assignment | instantiation-statement |
    generate-statement
concurrent-statement-list : { concurrent-statement }

Component instantiation statements
Concurrent signal assignments
Process statements and wait statements
Concurrent procedure call
Concurrent assertion statements
Block statements