// Test file for ifdef processing - in general all defines
//  starting with D should eval true,  those starting with U should be false
// Run with:
//    +define+D99 +define+D98=XXX
//


`ifdef D99     // this is defined on the command line
 `ifdef D98    // this too
module test;
  `define D01	TEST // this should get done
 `else 
  `define U01
 `endif
`endif

`define U02  TEST /* comment */
`ifdef U02
	reg test1;  /* this should be true here */
`endif
`undef  U02

`ifdef D01
	`ifdef U01
		reg testX;
	`else
		reg test2;   // this is the correct one
	`endif
	`ifdef U02
		reg testY;
	`endif
`endif


`ifdef FOR_WEB_PAGE
`include "inc1.v"
`else
`include "../preproc/includes/inc1.v"
`endif

`ifdef D11
 `ifdef D12
  `ifdef D13
   `ifdef D14
	reg testZ; // actually this isn't defined yet
	reg testZ; // actually this isn't defined yet
	reg testZ; // actually this isn't defined yet
	reg testZ; // actually this isn't defined yet
   `else
      	reg test3; // so this should be true
   `endif
  `endif
 `endif
`endif

`define D02  THIS CONTROLS THE BEHAVIOUR OF inc1.v

`include "inc1.v"

`ifdef D11
 `ifdef D12
  `ifdef D13
   `ifdef D14
	reg test4; // now this should be true
   `else
      	reg testA; 
	`include "inc2.v"   // this shouldn't get included
	`undef D31          // and this should be undefined
   `endif
   `ifdef U21   // check inc 2 wasn't included
	reg testB;
   `endif
  `endif
 `endif
`endif

// test the file inc3.v was read
`ifdef D31
	`ifdef U31
  	 reg this_is_false;
	`else
	  `ifdef D32
	    `ifdef D33
		`ifdef U32
     	          reg this_is_false;
                `endif
		`ifdef U32
		`else
     	          reg this_is_true;
		`endif
	    `else
            `endif	
           `endif	
  	 reg this_is_true2;
	`undef D01
	`endif
`else
	reg this_is_false;
`endif

`ifdef D01   // this time it should be undefined
`else
endmodule
`endif