verif/env/common/verilog/checkers/ncu/ncu_ccx_chkr.v

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//
// OpenSPARC T2 Processor File: ncu_ccx_chkr.v
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module ncu_ccx_chkr();

wire por_reset_l = !`NCU.tcu_aclk;


 // 0in default_reset `NCU.tcu_aclk -module ncu_ccx_chkr

`ifdef X_GUARD
// 0in known_driven -var cpx_ncu_grant_cx          -clock l2clk -name cpx_ncu_grant_cx_x_guard -active por_reset_l -module ncu
   // 0in known_driven -var ncu_cpx_req_cq         -clock l2clk -name ncu_cpx_req_cq_x_guard -active por_reset_l -module ncu
   // 0in known_driven -var ncu_pcx_stall_pq       -clock l2clk -name ncu_pcx_stall_pq_x_guard -active por_reset_l -module ncu
   // 0in known_driven -var pcx_ncu_data_rdy_px1   -clock l2clk -name pcx_ncu_data_rdy_px1_x_guard -active por_reset_l -module ncu

`endif

//****************************************
// checker for PCX interface
//****************************************


//****************************************
// checker for CPX interface
//****************************************
reg [4:0] outstanding_req_cnt0;
reg [4:0] outstanding_req_cnt1;
reg [4:0] outstanding_req_cnt2;
reg [4:0] outstanding_req_cnt3;
reg [4:0] outstanding_req_cnt4;
reg [4:0] outstanding_req_cnt5;
reg [4:0] outstanding_req_cnt6;
reg [4:0] outstanding_req_cnt7;


/* 0in bits_on
        -var ncu_cpx_req_cq
        -max 1
        -message "ncu_cpx_req_cq is not one hot"
        -clock l2clk
        -module ncu
*/


/* 0in overflow
        -var outstanding_req_cnt0
        -max 2
        -name ncu_cpx_req_cq0
        -clock l2clk
        -module ncu
*/
/* 0in overflow
        -var outstanding_req_cnt1
        -max 2
        -name ncu_cpx_req_cq1
        -clock l2clk
        -module ncu
*/
/* 0in overflow
        -var outstanding_req_cnt2
        -max 2
        -name ncu_cpx_req_cq2
        -clock l2clk
        -module ncu
*/
/* 0in overflow
        -var outstanding_req_cnt3
        -max 2
        -name ncu_cpx_req_cq3
        -clock l2clk
        -module ncu
*/
/* 0in overflow
        -var outstanding_req_cnt4
        -max 2
        -name ncu_cpx_req_cq4
        -clock l2clk
        -module ncu
*/
/* 0in overflow
        -var outstanding_req_cnt5
        -max 2
        -name ncu_cpx_req_cq5
        -clock l2clk
        -module ncu
*/
/* 0in overflow
        -var outstanding_req_cnt6
        -max 2
        -name ncu_cpx_req_cq6
        -clock l2clk
        -module ncu
*/
/* 0in overflow
        -var outstanding_req_cnt7
        -max 2
        -name ncu_cpx_req_cq7
        -clock l2clk
        -module ncu
*/

always @(por_reset_l) begin
  if (!por_reset_l) begin
        outstanding_req_cnt0 = 0;
  end
end
always @(por_reset_l) begin
  if (!por_reset_l) begin
        outstanding_req_cnt1 = 0;
  end
end
always @(por_reset_l) begin
  if (!por_reset_l) begin
        outstanding_req_cnt2 = 0;
  end
end
always @(por_reset_l) begin
  if (!por_reset_l) begin
        outstanding_req_cnt3 = 0;
  end
end
always @(por_reset_l) begin
  if (!por_reset_l) begin
        outstanding_req_cnt4 = 0;
  end
end
always @(por_reset_l) begin
  if (!por_reset_l) begin
        outstanding_req_cnt5 = 0;
  end
end
always @(por_reset_l) begin
  if (!por_reset_l) begin
        outstanding_req_cnt6 = 0;
  end
end
always @(por_reset_l) begin
  if (!por_reset_l) begin
        outstanding_req_cnt7 = 0;
  end
end


always @(posedge `NCU.l2clk) begin
    if (`NCU.cpx_ncu_grant_cx[0]) begin
        if (outstanding_req_cnt0 <= 0)begin
                $display ("ERROR! %m outstanding_req_cnt0 will become negtive value") ;
        end
        outstanding_req_cnt0 = outstanding_req_cnt0 - 1;
    end
    if (`NCU.ncu_cpx_req_cq[0]) begin
        outstanding_req_cnt0 = outstanding_req_cnt0 + 1;
    end
end
always @(posedge `NCU.l2clk) begin
    if (`NCU.cpx_ncu_grant_cx[1]) begin
        if (outstanding_req_cnt1 <= 0)begin
                $display ("ERROR! %m outstanding_req_cnt1 will become negtive value") ;
        end
        outstanding_req_cnt1 = outstanding_req_cnt1 - 1;
    end
    if (`NCU.ncu_cpx_req_cq[1]) begin
        outstanding_req_cnt1 = outstanding_req_cnt1 + 1;
    end
end
always @(posedge `NCU.l2clk) begin
    if (`NCU.cpx_ncu_grant_cx[2]) begin
        if (outstanding_req_cnt2 <= 0)begin
                $display ("ERROR! %m outstanding_req_cnt2 will become negtive value") ;
        end
        outstanding_req_cnt2 = outstanding_req_cnt2 - 1;
    end
    if (`NCU.ncu_cpx_req_cq[2]) begin
        outstanding_req_cnt2 = outstanding_req_cnt2 + 1;
    end
end
always @(posedge `NCU.l2clk) begin
    if (`NCU.cpx_ncu_grant_cx[3]) begin
        if (outstanding_req_cnt3 <= 0)begin
                $display ("ERROR! %m outstanding_req_cnt3 will become negtive value") ;
        end
        outstanding_req_cnt3 = outstanding_req_cnt3 - 1;
    end
    if (`NCU.ncu_cpx_req_cq[3]) begin
        outstanding_req_cnt3 = outstanding_req_cnt3 + 1;
    end
end
always @(posedge `NCU.l2clk) begin
    if (`NCU.cpx_ncu_grant_cx[4]) begin
        if (outstanding_req_cnt4 <= 0)begin
                $display ("ERROR! %m outstanding_req_cnt4 will become negtive value") ;
        end
        outstanding_req_cnt4 = outstanding_req_cnt4 - 1;
    end
    if (`NCU.ncu_cpx_req_cq[4]) begin
        outstanding_req_cnt4 = outstanding_req_cnt4 + 1;
    end
end
always @(posedge `NCU.l2clk) begin
    if (`NCU.cpx_ncu_grant_cx[5]) begin
        if (outstanding_req_cnt5 <= 0)begin
                $display ("ERROR! %m outstanding_req_cnt5 will become negtive value") ;
        end
        outstanding_req_cnt5 = outstanding_req_cnt5 - 1;
    end
    if (`NCU.ncu_cpx_req_cq[5]) begin
        outstanding_req_cnt5 = outstanding_req_cnt5 + 1;
    end
end
always @(posedge `NCU.l2clk) begin
    if (`NCU.cpx_ncu_grant_cx[6]) begin
        if (outstanding_req_cnt6 <= 0)begin
                $display ("ERROR! %m outstanding_req_cnt6 will become negtive value") ;
        end
        outstanding_req_cnt6 = outstanding_req_cnt6 - 1;
    end
    if (`NCU.ncu_cpx_req_cq[6]) begin
        outstanding_req_cnt6 = outstanding_req_cnt6 + 1;
    end
end
always @(posedge `NCU.l2clk) begin
    if (`NCU.cpx_ncu_grant_cx[7]) begin
        if (outstanding_req_cnt7 <= 0)begin
                $display ("ERROR! %m outstanding_req_cnt7 will become negtive value") ;
        end
        outstanding_req_cnt7 = outstanding_req_cnt7 - 1;
    end
    if (`NCU.ncu_cpx_req_cq[7]) begin
        outstanding_req_cnt7 = outstanding_req_cnt7 + 1;
    end
end

endmodule