174 lines
7.9 KiB
Systemverilog
174 lines
7.9 KiB
Systemverilog
|
// argv=9
|
||
|
|
// TOTAL_INT=9 NUM_LEVELS=4
|
||
|
|
`ifdef RV_PIC_2CYCLE
|
||
|
|
// LEVEL0
|
||
|
|
logic [TOTAL_INT+2:0] [INTPRIORITY_BITS-1:0] level_intpend_w_prior_en_1;
|
||
|
|
logic [TOTAL_INT+2:0] [ID_BITS-1:0] level_intpend_id_1;
|
||
|
|
for (m=0; m<=(TOTAL_INT)/(2**(1)) ; m++) begin : COMPARE0
|
||
|
|
if ( m == (TOTAL_INT)/(2**(1))) begin
|
||
|
|
assign level_intpend_w_prior_en_1[m+1] = '0 ;
|
||
|
|
assign level_intpend_id_1[m+1] = '0 ;
|
||
|
|
end
|
||
|
|
cmp_and_mux #(
|
||
|
|
.ID_BITS(ID_BITS),
|
||
|
|
.INTPRIORITY_BITS(INTPRIORITY_BITS)) cmp_l1 (
|
||
|
|
.a_id(level_intpend_id[0][2*m]),
|
||
|
|
.a_priority(level_intpend_w_prior_en[0][2*m]),
|
||
|
|
.b_id(level_intpend_id[0][2*m+1]),
|
||
|
|
.b_priority(level_intpend_w_prior_en[0][2*m+1]),
|
||
|
|
.out_id(level_intpend_id_1[m]),
|
||
|
|
.out_priority(level_intpend_w_prior_en_1[m])) ;
|
||
|
|
|
||
|
|
end
|
||
|
|
|
||
|
|
// LEVEL1
|
||
|
|
logic [TOTAL_INT+2:0] [INTPRIORITY_BITS-1:0] level_intpend_w_prior_en_2;
|
||
|
|
logic [TOTAL_INT+2:0] [ID_BITS-1:0] level_intpend_id_2;
|
||
|
|
for (m=0; m<=(TOTAL_INT)/(2**(2)) ; m++) begin : COMPARE1
|
||
|
|
if ( m == (TOTAL_INT)/(2**(2))) begin
|
||
|
|
assign level_intpend_w_prior_en_2[m+1] = '0 ;
|
||
|
|
assign level_intpend_id_2[m+1] = '0 ;
|
||
|
|
end
|
||
|
|
cmp_and_mux #(
|
||
|
|
.ID_BITS(ID_BITS),
|
||
|
|
.INTPRIORITY_BITS(INTPRIORITY_BITS)) cmp_l2 (
|
||
|
|
.a_id(level_intpend_id_1[2*m]),
|
||
|
|
.a_priority(level_intpend_w_prior_en_1[2*m]),
|
||
|
|
.b_id(level_intpend_id_1[2*m+1]),
|
||
|
|
.b_priority(level_intpend_w_prior_en_1[2*m+1]),
|
||
|
|
.out_id(level_intpend_id_2[m]),
|
||
|
|
.out_priority(level_intpend_w_prior_en_2[m])) ;
|
||
|
|
|
||
|
|
end
|
||
|
|
|
||
|
|
for (i=0; i<=TOTAL_INT/2**(NUM_LEVELS/2) ; i++) begin : MIDDLE_FLOPS
|
||
|
|
rvdff #(INTPRIORITY_BITS) level2_intpend_prior_reg (.*, .din (level_intpend_w_prior_en_2[i]), .dout(l2_intpend_w_prior_en_ff[i]), .clk(active_clk));
|
||
|
|
rvdff #(ID_BITS) level2_intpend_id_reg (.*, .din (level_intpend_id_2[i]), .dout(l2_intpend_id_ff[i]), .clk(active_clk));
|
||
|
|
end
|
||
|
|
// LEVEL2
|
||
|
|
logic [TOTAL_INT+2:0] [INTPRIORITY_BITS-1:0] levelx_intpend_w_prior_en_3;
|
||
|
|
logic [TOTAL_INT+2:0] [ID_BITS-1:0] levelx_intpend_id_3;
|
||
|
|
for (m=0; m<=(TOTAL_INT)/(2**(3)) ; m++) begin : COMPARE2
|
||
|
|
if ( m == (TOTAL_INT)/(2**(3))) begin
|
||
|
|
assign levelx_intpend_w_prior_en_3[m+1] = '0 ;
|
||
|
|
assign levelx_intpend_id_3[m+1] = '0 ;
|
||
|
|
end
|
||
|
|
cmp_and_mux #(
|
||
|
|
.ID_BITS(ID_BITS),
|
||
|
|
.INTPRIORITY_BITS(INTPRIORITY_BITS)) cmp_l3 (
|
||
|
|
.a_id(levelx_intpend_id[2][2*m]),
|
||
|
|
.a_priority(levelx_intpend_w_prior_en[2][2*m]),
|
||
|
|
.b_id(levelx_intpend_id[2][2*m+1]),
|
||
|
|
.b_priority(levelx_intpend_w_prior_en[2][2*m+1]),
|
||
|
|
.out_id(levelx_intpend_id_3[m]),
|
||
|
|
.out_priority(levelx_intpend_w_prior_en_3[m])) ;
|
||
|
|
|
||
|
|
end
|
||
|
|
|
||
|
|
// LEVEL3
|
||
|
|
logic [TOTAL_INT+2:0] [INTPRIORITY_BITS-1:0] levelx_intpend_w_prior_en_4;
|
||
|
|
logic [TOTAL_INT+2:0] [ID_BITS-1:0] levelx_intpend_id_4;
|
||
|
|
for (m=0; m<=(TOTAL_INT)/(2**(4)) ; m++) begin : COMPARE3
|
||
|
|
if ( m == (TOTAL_INT)/(2**(4))) begin
|
||
|
|
assign levelx_intpend_w_prior_en_4[m+1] = '0 ;
|
||
|
|
assign levelx_intpend_id_4[m+1] = '0 ;
|
||
|
|
end
|
||
|
|
cmp_and_mux #(
|
||
|
|
.ID_BITS(ID_BITS),
|
||
|
|
.INTPRIORITY_BITS(INTPRIORITY_BITS)) cmp_l4 (
|
||
|
|
.a_id(levelx_intpend_id_3[2*m]),
|
||
|
|
.a_priority(levelx_intpend_w_prior_en_3[2*m]),
|
||
|
|
.b_id(levelx_intpend_id_3[2*m+1]),
|
||
|
|
.b_priority(levelx_intpend_w_prior_en_3[2*m+1]),
|
||
|
|
.out_id(levelx_intpend_id_4[m]),
|
||
|
|
.out_priority(levelx_intpend_w_prior_en_4[m])) ;
|
||
|
|
|
||
|
|
end
|
||
|
|
|
||
|
|
assign claimid_in[ID_BITS-1:0] = levelx_intpend_id_4[0] ; // This is the last level output
|
||
|
|
assign selected_int_priority[INTPRIORITY_BITS-1:0] = levelx_intpend_w_prior_en_4[0] ;
|
||
|
|
`else
|
||
|
|
// LEVEL0
|
||
|
|
logic [TOTAL_INT+2:0] [INTPRIORITY_BITS-1:0] level_intpend_w_prior_en_1;
|
||
|
|
logic [TOTAL_INT+2:0] [ID_BITS-1:0] level_intpend_id_1;
|
||
|
|
for (m=0; m<=(TOTAL_INT)/(2**(1)) ; m++) begin : COMPARE0
|
||
|
|
if ( m == (TOTAL_INT)/(2**(1))) begin
|
||
|
|
assign level_intpend_w_prior_en_1[m+1] = '0 ;
|
||
|
|
assign level_intpend_id_1[m+1] = '0 ;
|
||
|
|
end
|
||
|
|
cmp_and_mux #(
|
||
|
|
.ID_BITS(ID_BITS),
|
||
|
|
.INTPRIORITY_BITS(INTPRIORITY_BITS)) cmp_l1 (
|
||
|
|
.a_id(level_intpend_id[0][2*m]),
|
||
|
|
.a_priority(level_intpend_w_prior_en[0][2*m]),
|
||
|
|
.b_id(level_intpend_id[0][2*m+1]),
|
||
|
|
.b_priority(level_intpend_w_prior_en[0][2*m+1]),
|
||
|
|
.out_id(level_intpend_id_1[m]),
|
||
|
|
.out_priority(level_intpend_w_prior_en_1[m])) ;
|
||
|
|
|
||
|
|
end
|
||
|
|
|
||
|
|
// LEVEL1
|
||
|
|
logic [TOTAL_INT+2:0] [INTPRIORITY_BITS-1:0] level_intpend_w_prior_en_2;
|
||
|
|
logic [TOTAL_INT+2:0] [ID_BITS-1:0] level_intpend_id_2;
|
||
|
|
for (m=0; m<=(TOTAL_INT)/(2**(2)) ; m++) begin : COMPARE1
|
||
|
|
if ( m == (TOTAL_INT)/(2**(2))) begin
|
||
|
|
assign level_intpend_w_prior_en_2[m+1] = '0 ;
|
||
|
|
assign level_intpend_id_2[m+1] = '0 ;
|
||
|
|
end
|
||
|
|
cmp_and_mux #(
|
||
|
|
.ID_BITS(ID_BITS),
|
||
|
|
.INTPRIORITY_BITS(INTPRIORITY_BITS)) cmp_l2 (
|
||
|
|
.a_id(level_intpend_id_1[2*m]),
|
||
|
|
.a_priority(level_intpend_w_prior_en_1[2*m]),
|
||
|
|
.b_id(level_intpend_id_1[2*m+1]),
|
||
|
|
.b_priority(level_intpend_w_prior_en_1[2*m+1]),
|
||
|
|
.out_id(level_intpend_id_2[m]),
|
||
|
|
.out_priority(level_intpend_w_prior_en_2[m])) ;
|
||
|
|
|
||
|
|
end
|
||
|
|
|
||
|
|
// LEVEL2
|
||
|
|
logic [TOTAL_INT+2:0] [INTPRIORITY_BITS-1:0] level_intpend_w_prior_en_3;
|
||
|
|
logic [TOTAL_INT+2:0] [ID_BITS-1:0] level_intpend_id_3;
|
||
|
|
for (m=0; m<=(TOTAL_INT)/(2**(3)) ; m++) begin : COMPARE2
|
||
|
|
if ( m == (TOTAL_INT)/(2**(3))) begin
|
||
|
|
assign level_intpend_w_prior_en_3[m+1] = '0 ;
|
||
|
|
assign level_intpend_id_3[m+1] = '0 ;
|
||
|
|
end
|
||
|
|
cmp_and_mux #(
|
||
|
|
.ID_BITS(ID_BITS),
|
||
|
|
.INTPRIORITY_BITS(INTPRIORITY_BITS)) cmp_l3 (
|
||
|
|
.a_id(level_intpend_id_2[2*m]),
|
||
|
|
.a_priority(level_intpend_w_prior_en_2[2*m]),
|
||
|
|
.b_id(level_intpend_id_2[2*m+1]),
|
||
|
|
.b_priority(level_intpend_w_prior_en_2[2*m+1]),
|
||
|
|
.out_id(level_intpend_id_3[m]),
|
||
|
|
.out_priority(level_intpend_w_prior_en_3[m])) ;
|
||
|
|
|
||
|
|
end
|
||
|
|
|
||
|
|
// LEVEL3
|
||
|
|
logic [TOTAL_INT+2:0] [INTPRIORITY_BITS-1:0] level_intpend_w_prior_en_4;
|
||
|
|
logic [TOTAL_INT+2:0] [ID_BITS-1:0] level_intpend_id_4;
|
||
|
|
for (m=0; m<=(TOTAL_INT)/(2**(4)) ; m++) begin : COMPARE3
|
||
|
|
if ( m == (TOTAL_INT)/(2**(4))) begin
|
||
|
|
assign level_intpend_w_prior_en_4[m+1] = '0 ;
|
||
|
|
assign level_intpend_id_4[m+1] = '0 ;
|
||
|
|
end
|
||
|
|
cmp_and_mux #(
|
||
|
|
.ID_BITS(ID_BITS),
|
||
|
|
.INTPRIORITY_BITS(INTPRIORITY_BITS)) cmp_l4 (
|
||
|
|
.a_id(level_intpend_id_3[2*m]),
|
||
|
|
.a_priority(level_intpend_w_prior_en_3[2*m]),
|
||
|
|
.b_id(level_intpend_id_3[2*m+1]),
|
||
|
|
.b_priority(level_intpend_w_prior_en_3[2*m+1]),
|
||
|
|
.out_id(level_intpend_id_4[m]),
|
||
|
|
.out_priority(level_intpend_w_prior_en_4[m])) ;
|
||
|
|
|
||
|
|
end
|
||
|
|
|
||
|
|
assign claimid_in[ID_BITS-1:0] = level_intpend_id_4[0] ; // This is the last level output
|
||
|
|
assign selected_int_priority[INTPRIORITY_BITS-1:0] = level_intpend_w_prior_en_4[0] ;
|
||
|
|
`endif
|