what's the difference between them

[tigerajs]

"@posedge clk" and "@posedge clk;"

 

[AlexWan]

First is a condition, another is a statement.

 

[semiconductorman]

A semicolon ! Kidding ............ . Let me put it is code snipet and tell you .
1.
@posedge clk
a = 0 ;
// here the value of a is assigned to 0 after the event of posedge of clk .

2.
@posedge clk;
a = 0;
// Here value of a =0 after the event posedge of clk.

 

[Thomson]

A semicolon ! Kidding ............ . Let me put it is code snipet and tell you .
1.
@posedge clk
a = 0 ;
// here the value of a is assigned to 0 after the event of posedge of clk .

2.
@posedge clk;
a = 0;
// Here value of a =0 after the event posedge of clk.

If you only contian a assignmets in one block, there's no difference for these two ways; however, if there are more than one block which will assign some values to a with these two methods, then the result may be different.

Thomson