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/tlb/rtl/datacache.v
1,12 → 1,27
`include "config.v"
 
module datacache(input clk,input stall,input [4:0] stginhibit,input [4:0] codemiss,input [31:0] addrA,output `muxnet [511:0] dataA,input [511:0] cacheLine,input [31:0] writeData,output `muxnet cacheHit,input readen,input writeen,input insert,input initEntry,input [1:0] readsz,output `muxnet [31:0] oldAddr);
module datacache(
input clk,
input stall,
input [4:0] stginhibit,
input [4:0] codemiss,
input [31:0] addrA,
output wire [511:0] dataA,
input [511:0] cacheLine,
input [31:0] writeData,
output wire cacheHit,
input readen,
input writeen,
input insert,
input initEntry,
input [1:0] readsz,
output wire [31:0] oldAddr);
 
wire tagwe;
wire [31:0] tagAddrA;
wire [31:0] tagAddrW;
wire [119:0] tagDataA;
`muxnet [119:0] tagDataW;
wire [119:0] tagDataW;
reg [31:0] tagAddrA_reg;
 
reg readen_reg=0;
39,7 → 54,7
wire [1:0] newPos2;
wire [1:0] newPos3;
 
`muxnet hit3,hit2,hit1,hit0;
wire hit3,hit2,hit1,hit0;
wire hit;
 
wire ram0We,ram1We,ram2We,ram3We;
96,90 → 111,90
assign pad1[5:0]=6'b0;
assign pad0[5:0]=6'b0;
 
assign hit3=(readen_reg || writeen_reg) ? val3 && (pad3[31:6]==tagAddrA_reg[31:6]) : 1'b`muxval;
assign hit2=(readen_reg || writeen_reg) ? val2 && (pad2[31:6]==tagAddrA_reg[31:6]) : 1'b`muxval;
assign hit1=(readen_reg || writeen_reg) ? val1 && (pad1[31:6]==tagAddrA_reg[31:6]) : 1'b`muxval;
assign hit0=(readen_reg || writeen_reg) ? val0 && (pad0[31:6]==tagAddrA_reg[31:6]) : 1'b`muxval;
assign hit3=(readen_reg || writeen_reg) ? val3 && (pad3[31:6]==tagAddrA_reg[31:6]) : 1'bz;
assign hit2=(readen_reg || writeen_reg) ? val2 && (pad2[31:6]==tagAddrA_reg[31:6]) : 1'bz;
assign hit1=(readen_reg || writeen_reg) ? val1 && (pad1[31:6]==tagAddrA_reg[31:6]) : 1'bz;
assign hit0=(readen_reg || writeen_reg) ? val0 && (pad0[31:6]==tagAddrA_reg[31:6]) : 1'bz;
 
assign hit3=insert_reg ? (pos3==2'b11) : 1'b`muxval;
assign hit2=insert_reg ? (pos2==2'b11) : 1'b`muxval;
assign hit1=insert_reg ? (pos1==2'b11) : 1'b`muxval;
assign hit0=insert_reg ? (pos0==2'b11) : 1'b`muxval;
assign hit3=insert_reg ? (pos3==2'b11) : 1'bz;
assign hit2=insert_reg ? (pos2==2'b11) : 1'bz;
assign hit1=insert_reg ? (pos1==2'b11) : 1'bz;
assign hit0=insert_reg ? (pos0==2'b11) : 1'bz;
 
assign hit3=(!insert_reg && !readen_reg && !writeen_reg) ? 1'b0 : 1'b`muxval;
assign hit2=(!insert_reg && !readen_reg && !writeen_reg) ? 1'b0 : 1'b`muxval;
assign hit1=(!insert_reg && !readen_reg && !writeen_reg) ? 1'b0 : 1'b`muxval;
assign hit0=(!insert_reg && !readen_reg && !writeen_reg) ? 1'b0 : 1'b`muxval;
assign hit3=(!insert_reg && !readen_reg && !writeen_reg) ? 1'b0 : 1'bz;
assign hit2=(!insert_reg && !readen_reg && !writeen_reg) ? 1'b0 : 1'bz;
assign hit1=(!insert_reg && !readen_reg && !writeen_reg) ? 1'b0 : 1'bz;
assign hit0=(!insert_reg && !readen_reg && !writeen_reg) ? 1'b0 : 1'bz;
 
assign hit=hit3 || hit2 || hit1 || hit0;
 
assign cacheHit= (insert_reg && hit0) ? val0 && dir0 : 1'b`muxval;
assign cacheHit= (insert_reg && hit1) ? val1 && dir1 : 1'b`muxval;
assign cacheHit= (insert_reg && hit2) ? val2 && dir2 : 1'b`muxval;
assign cacheHit= (insert_reg && hit3) ? val3 && dir3 : 1'b`muxval;
assign cacheHit= insert_reg ? 1'b`muxval : hit;
assign cacheHit= (insert_reg && hit0) ? val0 && dir0 : 1'bz;
assign cacheHit= (insert_reg && hit1) ? val1 && dir1 : 1'bz;
assign cacheHit= (insert_reg && hit2) ? val2 && dir2 : 1'bz;
assign cacheHit= (insert_reg && hit3) ? val3 && dir3 : 1'bz;
assign cacheHit= insert_reg ? 1'bz : hit;
 
assign tagDataW=readen_reg ? { pad3[31:6],pad2[31:6],pad1[31:6],pad0[31:6],
newPos3,newPos2,newPos1,newPos0,
val3,val2,val1,val0,
dir3,dir2,dir1,dir0 } : 120'b`muxval;
dir3,dir2,dir1,dir0 } : 120'bz;
assign tagDataW=(writeen_reg && hit0) ? { pad3[31:6],pad2[31:6],pad1[31:6],pad0[31:6],
newPos3,newPos2,newPos1,newPos0,
val3,val2,val1,val0,
dir3,dir2,dir1,1'b1 } : 120'b`muxval;
dir3,dir2,dir1,1'b1 } : 120'bz;
assign tagDataW=(writeen_reg && hit1) ? { pad3[31:6],pad2[31:6],pad1[31:6],pad0[31:6],
newPos3,newPos2,newPos1,newPos0,
val3,val2,val1,val0,
dir3,dir2,1'b1,dir0 } : 120'b`muxval;
dir3,dir2,1'b1,dir0 } : 120'bz;
assign tagDataW=(writeen_reg && hit2) ? { pad3[31:6],pad2[31:6],pad1[31:6],pad0[31:6],
newPos3,newPos2,newPos1,newPos0,
val3,val2,val1,val0,
dir3,1'b1,dir1,dir0 } : 120'b`muxval;
dir3,1'b1,dir1,dir0 } : 120'bz;
assign tagDataW=(writeen_reg && hit3) ? { pad3[31:6],pad2[31:6],pad1[31:6],pad0[31:6],
newPos3,newPos2,newPos1,newPos0,
val3,val2,val1,val0,
1'b1,dir2,dir1,dir0 } : 120'b`muxval;
1'b1,dir2,dir1,dir0 } : 120'bz;
assign tagDataW=(writeen_reg && !hit) ? { pad3[31:6],pad2[31:6],pad1[31:6],pad0[31:6],
newPos3,newPos2,newPos1,newPos0,
val3,val2,val1,val0,
dir3,dir2,dir1,dir0 } : 120'b`muxval;
dir3,dir2,dir1,dir0 } : 120'bz;
 
assign tagDataW=(insert_reg && hit0) ? { pad3[31:6],pad2[31:6],pad1[31:6],tagAddrA_reg[31:6],
newPos3,newPos2,newPos1,newPos0,
val3,val2,val1,1'b1,
dir3,dir2,dir1,1'b0 } : 120'b`muxval;
dir3,dir2,dir1,1'b0 } : 120'bz;
assign tagDataW=(insert_reg && hit1) ? { pad3[31:6],pad2[31:6],tagAddrA_reg[31:6],pad0[31:6],
newPos3,newPos2,newPos1,newPos0,
val3,val2,1'b1,val0,
dir3,dir2,1'b0,dir0 } : 120'b`muxval;
dir3,dir2,1'b0,dir0 } : 120'bz;
assign tagDataW=(insert_reg && hit2) ? { pad3[31:6],tagAddrA_reg[31:6],pad1[31:6],pad0[31:6],
newPos3,newPos2,newPos1,newPos0,
val3,1'b1,val1,val0,
dir3,1'b0,dir1,dir0 } : 120'b`muxval;
dir3,1'b0,dir1,dir0 } : 120'bz;
assign tagDataW=(insert_reg && hit3) ? { tagAddrA_reg[31:6],pad2[31:6],pad1[31:6],pad0[31:6],
newPos3,newPos2,newPos1,newPos0,
1'b1,val2,val1,val0,
1'b0,dir2,dir1,dir0 } : 120'b`muxval;
1'b0,dir2,dir1,dir0 } : 120'bz;
// assign tagDataW=(insert_reg && !hit) ? 120'b0 : 120'bz;
assign tagDataW=initEntry_reg ? { 26'b0,26'b0,26'b0,26'b0,
2'b11,2'b10,2'b01,2'b00,
1'b0,1'b0,1'b0,1'b0,
1'b0,1'b0,1'b0,1'b0} : 120'b`muxval;
assign tagDataW=(!insert_reg && !readen_reg && !writeen_reg && !initEntry_reg) ? 120'b0 : 120'b`muxval;
1'b0,1'b0,1'b0,1'b0} : 120'bz;
assign tagDataW=(!insert_reg && !readen_reg && !writeen_reg && !initEntry_reg) ? 120'b0 : 120'bz;
 
assign dataA=(!insert_reg && hit0) ? {480'b0,dataA0} : 512'b`muxval;
assign dataA=(!insert_reg && hit1) ? {480'b0,dataA1} : 512'b`muxval;
assign dataA=(!insert_reg && hit2) ? {480'b0,dataA2} : 512'b`muxval;
assign dataA=(!insert_reg && hit0) ? {480'b0,dataA0} : 512'bz;
assign dataA=(!insert_reg && hit1) ? {480'b0,dataA1} : 512'bz;
assign dataA=(!insert_reg && hit2) ? {480'b0,dataA2} : 512'bz;
 
assign dataA=(!insert_reg && hit3) ? {480'b0,dataA3} : 512'b`muxval;
assign dataA=(!insert_reg && hit3) ? {480'b0,dataA3} : 512'bz;
 
assign dataA=(insert_reg && hit0) ? ramDataR0 : 512'b`muxval;
assign dataA=(insert_reg && hit0) ? ramDataR0 : 512'bz;
 
assign dataA=(insert_reg && hit1) ? ramDataR1 : 512'b`muxval;
assign dataA=(insert_reg && hit2) ? ramDataR2 : 512'b`muxval;
assign dataA=(insert_reg && hit3) ? ramDataR3 : 512'b`muxval;
assign dataA=(insert_reg && hit1) ? ramDataR1 : 512'bz;
assign dataA=(insert_reg && hit2) ? ramDataR2 : 512'bz;
assign dataA=(insert_reg && hit3) ? ramDataR3 : 512'bz;
 
assign dataA= hit ? 512'b`muxval : 512'b0; //change to accomodate non-read ops
assign dataA= hit ? 512'bz : 512'b0; //change to accomodate non-read ops
assign ramDataW0=insert_reg ? cacheLine_reg : ramDataWA0;
assign ramDataW1=insert_reg ? cacheLine_reg : ramDataWA1;
191,11 → 206,11
assign ram2We=(insert_reg || (writeen_reg && !stall && !codemiss[4] && !stginhibit[4])) && hit2;
assign ram3We=(insert_reg || (writeen_reg && !stall && !codemiss[4] && !stginhibit[4])) && hit3;
 
assign oldAddr=(insert_reg && hit0) ? pad0 : 32'b`muxval;
assign oldAddr=(insert_reg && hit1) ? pad1 : 32'b`muxval;
assign oldAddr=(insert_reg && hit2) ? pad2 : 32'b`muxval;
assign oldAddr=(insert_reg && hit3) ? pad3 : 32'b`muxval;
assign oldAddr=(!insert_reg) ? 32'b0 : 32'b`muxval;
assign oldAddr=(insert_reg && hit0) ? pad0 : 32'bz;
assign oldAddr=(insert_reg && hit1) ? pad1 : 32'bz;
assign oldAddr=(insert_reg && hit2) ? pad2 : 32'bz;
assign oldAddr=(insert_reg && hit3) ? pad3 : 32'bz;
assign oldAddr=(!insert_reg) ? 32'b0 : 32'bz;
 
assign ramAddrA={tagAddrA[31:6],6'b0};
assign ramAddrW={tagAddrA_reg[31:6],6'b0};
272,40 → 287,40
 
module datacache_get_new_pos(input [1:0] pos0,input [1:0] pos1,input [1:0] pos2,input [1:0] pos3,
input hit0,input hit1,input hit2,input hit3,
output `muxnet [1:0] newPos0,output `muxnet [1:0] newPos1,output `muxnet [1:0] newPos2,output `muxnet [1:0] newPos3);
output wire [1:0] newPos0,output wire [1:0] newPos1,output wire [1:0] newPos2,output wire [1:0] newPos3);
wire hit;
 
assign hit=hit0 || hit1 || hit2 || hit3;
assign newPos0=hit0 ? 0 : 2'b`muxval;
assign newPos1=hit0 ? ((pos1<pos0) ? pos1+1:pos1 ) : 2'b`muxval;
assign newPos2=hit0 ? ((pos2<pos0) ? pos2+1:pos2 ) : 2'b`muxval;
assign newPos3=hit0 ? ((pos3<pos0) ? pos3+1:pos3 ) : 2'b`muxval;
assign newPos0=hit0 ? 0 : 2'bz;
assign newPos1=hit0 ? ((pos1<pos0) ? pos1+1:pos1 ) : 2'bz;
assign newPos2=hit0 ? ((pos2<pos0) ? pos2+1:pos2 ) : 2'bz;
assign newPos3=hit0 ? ((pos3<pos0) ? pos3+1:pos3 ) : 2'bz;
 
assign newPos1=hit1 ? 0 : 2'b`muxval;
assign newPos0=hit1 ? ((pos0<pos1) ? pos0+1:pos0 ) : 2'b`muxval;
assign newPos2=hit1 ? ((pos2<pos1) ? pos2+1:pos2 ) : 2'b`muxval;
assign newPos3=hit1 ? ((pos3<pos1) ? pos3+1:pos3 ) : 2'b`muxval;
assign newPos1=hit1 ? 0 : 2'bz;
assign newPos0=hit1 ? ((pos0<pos1) ? pos0+1:pos0 ) : 2'bz;
assign newPos2=hit1 ? ((pos2<pos1) ? pos2+1:pos2 ) : 2'bz;
assign newPos3=hit1 ? ((pos3<pos1) ? pos3+1:pos3 ) : 2'bz;
 
assign newPos2=hit2 ? 0 : 2'b`muxval;
assign newPos1=hit2 ? ((pos1<pos2) ? pos1+1:pos1 ) : 2'b`muxval;
assign newPos0=hit2 ? ((pos0<pos2) ? pos0+1:pos0 ) : 2'b`muxval;
assign newPos3=hit2 ? ((pos3<pos2) ? pos3+1:pos3 ) : 2'b`muxval;
assign newPos2=hit2 ? 0 : 2'bz;
assign newPos1=hit2 ? ((pos1<pos2) ? pos1+1:pos1 ) : 2'bz;
assign newPos0=hit2 ? ((pos0<pos2) ? pos0+1:pos0 ) : 2'bz;
assign newPos3=hit2 ? ((pos3<pos2) ? pos3+1:pos3 ) : 2'bz;
 
assign newPos3=hit3 ? 0 : 2'b`muxval;
assign newPos1=hit3 ? ((pos1<pos3) ? pos1+1:pos1 ) : 2'b`muxval;
assign newPos2=hit3 ? ((pos2<pos3) ? pos2+1:pos2 ) : 2'b`muxval;
assign newPos0=hit3 ? ((pos0<pos3) ? pos0+1:pos0 ) : 2'b`muxval;
assign newPos3=hit3 ? 0 : 2'bz;
assign newPos1=hit3 ? ((pos1<pos3) ? pos1+1:pos1 ) : 2'bz;
assign newPos2=hit3 ? ((pos2<pos3) ? pos2+1:pos2 ) : 2'bz;
assign newPos0=hit3 ? ((pos0<pos3) ? pos0+1:pos0 ) : 2'bz;
 
assign newPos0=hit ? 2'b`muxval : pos0;
assign newPos1=hit ? 2'b`muxval : pos1;
assign newPos2=hit ? 2'b`muxval : pos2;
assign newPos3=hit ? 2'b`muxval : pos3;
assign newPos0=hit ? 2'bz : pos0;
assign newPos1=hit ? 2'bz : pos1;
assign newPos2=hit ? 2'bz : pos2;
assign newPos3=hit ? 2'bz : pos3;
endmodule
 
 
module datacache_data_sel(input [511:0] dataIn,input [5:0] sel, input [1:0] readsz, output `muxnet [31:0] dataOut);
module datacache_data_sel(input [511:0] dataIn,input [5:0] sel, input [1:0] readsz, output wire [31:0] dataOut);
wire [255:0] bit5Data;
wire [127:0] bit4Data;
wire [63:0] bit3Data;
321,16 → 336,16
assign data16 =sel[1] ? data32[31:16] : data32[15:0];
assign data8 =sel[0] ? data16[15:8] : data16[7:0];
 
assign dataOut=(readsz==0) ? {24'b0,data8} : 32'b`muxval;
assign dataOut=(readsz==1) ? {16'b0,data16} : 32'b`muxval;
assign dataOut=(readsz==2) ? data32 : 32'b`muxval;
assign dataOut=(readsz==4) ? 32'b0 : 32'b`muxval;
assign dataOut=(readsz==0) ? {24'b0,data8} : 32'bz;
assign dataOut=(readsz==1) ? {16'b0,data16} : 32'bz;
assign dataOut=(readsz==2) ? data32 : 32'bz;
assign dataOut=(readsz==4) ? 32'b0 : 32'bz;
endmodule
 
 
module datacache_write_shift(input [31:0] dataIn,input [1:0] writesz,input [31:0] addr, output wire [511:0] dataOut, output wire [63:0] byteEnable);
`muxnet [511:0] data6;
wire [511:0] data6;
wire [511:0] data5;
wire [511:0] data4;
wire [511:0] data3;
338,7 → 353,7
wire [511:0] data1;
wire [511:0] data0;
 
`muxnet [63:0] byteEnable6;
wire [63:0] byteEnable6;
wire [63:0] byteEnable5;
wire [63:0] byteEnable4;
wire [63:0] byteEnable3;
347,10 → 362,10
wire [63:0] byteEnable0;
 
// change data6 to explicit mux!
assign data6=(writesz==0) ? {504'b0,dataIn[7:0]} : 512'b`muxval;
assign data6=(writesz==1) ? {496'b0,dataIn[15:0]} : 512'b`muxval;
assign data6=(writesz==2) ? {480'b0,dataIn} : 512'b`muxval;
assign data6=(writesz==3) ? 512'b0 : 512'b`muxval;
assign data6=(writesz==0) ? {504'b0,dataIn[7:0]} : 512'bz;
assign data6=(writesz==1) ? {496'b0,dataIn[15:0]} : 512'bz;
assign data6=(writesz==2) ? {480'b0,dataIn} : 512'bz;
assign data6=(writesz==3) ? 512'b0 : 512'bz;
 
assign data5=addr[5] ? { data6[255:0], 256'b0 }: data6;
assign data4=addr[4] ? { data5[383:0], 128'b0 }: data5;
361,10 → 376,10
 
assign dataOut=data0;
//change byteEnable6 to explicit mux!
assign byteEnable6=(writesz==0) ? 64'b0001 : 64'b`muxval;
assign byteEnable6=(writesz==1) ? 64'b0011 : 64'b`muxval;
assign byteEnable6=(writesz==2) ? 64'b1111 : 64'b`muxval;
assign byteEnable6=(writesz==3) ? 64'b0000 : 64'b`muxval;
assign byteEnable6=(writesz==0) ? 64'b0001 : 64'bz;
assign byteEnable6=(writesz==1) ? 64'b0011 : 64'bz;
assign byteEnable6=(writesz==2) ? 64'b1111 : 64'bz;
assign byteEnable6=(writesz==3) ? 64'b0000 : 64'bz;
 
assign byteEnable5=addr[5] ? { byteEnable6[31:0],32'b0 } : byteEnable6;
assign byteEnable4=addr[4] ? { byteEnable5[47:0],16'b0 } : byteEnable5;
/tlb/rtl/codecache.v
1,21 → 1,32
`include "config.v"
 
module codecache(input clk,input [31:0] addrA,output `muxnet [31:0] dataA,input [511:0] cacheLine,output wire hit,input readen,input insert,input initEntry);
module codecache(
input clk,
input [31:0] addrA,
input [31:0] addrB,
input tlbA;
input tlbB;
output [31:0] dataA,
input [127:0] cacheLine,
output hit,
input readen,
input insert,
input initEntry);
wire tagwe;
wire [31:0] tagAddrA;
wire [31:0] tagAddrW;
wire [115:0] tagDataA;
`muxnet [115:0] tagDataW;
wire [123:0] tagDataA;
wire [123:0] tagDataW;
reg [31:0] tagAddrA_reg;
 
wire ram0We,ram1We,ram2We,ram3We;
wire [31:0] ramAddrW;
wire [511:0] ramDataR0;
wire [511:0] ramDataR1;
wire [511:0] ramDataR2;
wire [511:0] ramDataR3;
wire [511:0] ramDataW;
reg [511:0] cacheLine_reg;
wire [127:0] ramDataR0;
wire [127:0] ramDataR1;
wire [127:0] ramDataR2;
wire [127:0] ramDataR3;
wire [127:0] ramDataW;
reg [127:0] cacheLine_reg;
 
wire [31:0] pad0;
wire [31:0] pad1;
36,13 → 47,18
wire [1:0] newPos3;
 
`muxnet hit3,hit2,hit1,hit0;
wire hit3,hit2,hit1,hit0;
wire hit3A,hit2A,hit1A,hit0A;
wire hit3B,hit2B,hit1B,hit0B;
wire hitA,hitB;
reg readen_reg=0;
reg insert_reg=0;
reg initEntry_reg=0;
reg [31:0] addrA_reg;
reg [115:0] tagDataA_fwd;
wire [115:0] ramTagDataA;
reg [31:0] addrB_reg;
reg [123:0] tagDataA_fwd;
wire [123:0] ramTagDataA;
reg tag_fwd=0;
 
wire [31:0] dataA0;
49,18 → 65,20
wire [31:0] dataA1;
wire [31:0] dataA2;
wire [31:0] dataA3;
 
codecacheramtag tag0(clk,tagwe,tagAddrA[11:4],tagAddrW[11:4],ramTagDataA,tagDataW);
codecacheram ram0(clk,ram0We,tagAddrA[11:4],ramAddrW[11:4],ramDataR0,ramDataW);
codecacheram ram1(clk,ram1We,tagAddrA[11:4],ramAddrW[11:4],ramDataR1,ramDataW);
codecacheram ram2(clk,ram2We,tagAddrA[11:4],ramAddrW[11:4],ramDataR2,ramDataW);
codecacheram ram3(clk,ram3We,tagAddrA[11:4],ramAddrW[11:4],ramDataR3,ramDataW);
instr_sel instr_sel0(ramDataR0,tagAddrA_reg[3:2],dataA0);
instr_sel instr_sel1(ramDataR1,tagAddrA_reg[3:2],dataA1);
instr_sel instr_sel2(ramDataR2,tagAddrA_reg[3:2],dataA2);
instr_sel instr_sel3(ramDataR3,tagAddrA_reg[3:2],dataA3);
get_new_pos newpos0(pos0,pos1,pos2,pos3,hit0A&tlbA||hit0B&tlbB,
hit1A&tlbA||hit1B&tlbB,hit2A&tlbA||hit2B&tlbB,hit3A&tlbA||hit3B&tlbB,
newPos0,newPos1,newPos2,newPos3);
codecacheramtag tag0(clk,tagwe,tagAddrA[11:6],tagAddrW[11:6],ramTagDataA,tagDataW);
codecacheram ram0(clk,ram0We,tagAddrA[11:6],ramAddrW[11:6],ramDataR0,ramDataW);
codecacheram ram1(clk,ram1We,tagAddrA[11:6],ramAddrW[11:6],ramDataR1,ramDataW);
codecacheram ram2(clk,ram2We,tagAddrA[11:6],ramAddrW[11:6],ramDataR2,ramDataW);
codecacheram ram3(clk,ram3We,tagAddrA[11:6],ramAddrW[11:6],ramDataR3,ramDataW);
instr_sel instr_sel0(ramDataR0,tagAddrA_reg[5:2],dataA0);
instr_sel instr_sel1(ramDataR1,tagAddrA_reg[5:2],dataA1);
instr_sel instr_sel2(ramDataR2,tagAddrA_reg[5:2],dataA2);
instr_sel instr_sel3(ramDataR3,tagAddrA_reg[5:2],dataA3);
get_new_pos newpos0(pos0,pos1,pos2,pos3,hit0,hit1,hit2,hit3,newPos0,newPos1,newPos2,newPos3);
assign tagAddrA=addrA;
assign tagwe=readen_reg || insert_reg || initEntry_reg;
assign tagAddrW=tagAddrA_reg;
67,37 → 85,39
 
assign tagDataA=tag_fwd ? tagDataA_fwd : ramTagDataA;
 
assign { pad3[31:6],pad2[31:6],pad1[31:6],pad0[31:6],pos3,pos2,pos1,pos0,val3,val2,val1,val0 } = tagDataA;
assign pad3[5:0]=6'b0;
assign pad2[5:0]=6'b0;
assign pad1[5:0]=6'b0;
assign pad0[5:0]=6'b0;
assign { pad3[31:4],pad2[31:4],pad1[31:4],pad0[31:4],pos3,pos2,pos1,pos0,val3,val2,val1,val0 } = tagDataA;
assign pad3[3:0]=4'b0;
assign pad2[3:0]=4'b0;
assign pad1[3:0]=4'b0;
assign pad0[3:0]=4'b0;
 
assign tagDataW=readen_reg ? { pad3[31:6],pad2[31:6],pad1[31:6],pad0[31:6],newPos3,newPos2,newPos1,newPos0,val3,val2,val1,val0 } : 116'b`muxval;
assign tagDataW=(insert_reg && hit0) ? { pad3[31:6],pad2[31:6],pad1[31:6],tagAddrA_reg[31:6],newPos3,newPos2,newPos1,newPos0,val3,val2,val1,1'b1 } : 116'b`muxval;
assign tagDataW=(insert_reg && hit1) ? { pad3[31:6],pad2[31:6],tagAddrA_reg[31:6],pad0[31:6],newPos3,newPos2,newPos1,newPos0,val3,val2,1'b1,val0 } : 116'b`muxval;
assign tagDataW=(insert_reg && hit2) ? { pad3[31:6],tagAddrA_reg[31:6],pad1[31:6],pad0[31:6],newPos3,newPos2,newPos1,newPos0,val3,1'b1,val1,val0 } : 116'b`muxval;
assign tagDataW=(insert_reg && hit3) ? { tagAddrA_reg[31:6],pad2[31:6],pad1[31:6],pad0[31:6],newPos3,newPos2,newPos1,newPos0,1'b1,val2,val1,val0 } : 116'b`muxval;
assign tagDataW=readen_reg ? { pad3[31:4],pad2[31:4],pad1[31:4],pad0[31:4],newPos3,newPos2,newPos1,newPos0,val3,val2,val1,val0 } : 124'bz;
assign tagDataW=(insert_reg && hit0) ? { pad3[31:4],pad2[31:4],pad1[31:4],tagAddrA_reg[31:4],newPos3,newPos2,newPos1,newPos0,val3,val2,val1,1'b1 } : 124'bz;
assign tagDataW=(insert_reg && hit1) ? { pad3[31:4],pad2[31:4],tagAddrA_reg[31:4],pad0[31:4],newPos3,newPos2,newPos1,newPos0,val3,val2,1'b1,val0 } : 124'bz;
assign tagDataW=(insert_reg && hit2) ? { pad3[31:4],tagAddrA_reg[31:4],pad1[31:4],pad0[31:4],newPos3,newPos2,newPos1,newPos0,val3,1'b1,val1,val0 } : 124'bz;
assign tagDataW=(insert_reg && hit3) ? { tagAddrA_reg[31:6],pad2[31:4],pad1[31:4],pad0[31:4],newPos3,newPos2,newPos1,newPos0,1'b1,val2,val1,val0 } : 124'bz;
// assign tagDataW=(insert_reg && !hit) ? 116'b0 : 116'bz;
assign tagDataW=initEntry_reg ? { 26'b0,26'b0,26'b0,26'b0,2'b11,2'b10,2'b01,2'b00,1'b0,1'b0,1'b0,1'b0} : 116'b`muxval;
assign tagDataW=(!insert_reg && !readen_reg && !initEntry_reg) ? 116'b0 : 116'b`muxval;
assign tagDataW=initEntry_reg ? { 28'b0,28'b0,28'b0,28'b0,2'b11,2'b10,2'b01,2'b00,1'b0,1'b0,1'b0,1'b0} : 124'bz;
assign tagDataW=(!insert_reg && !readen_reg && !initEntry_reg) ? 124'b0 : 124'bz;
assign hit3=readen_reg ? val3 && (pad3[31:6]==tagAddrA_reg[31:6]) : 1'b`muxval;
assign hit2=readen_reg ? val2 && (pad2[31:6]==tagAddrA_reg[31:6]) : 1'b`muxval;
assign hit1=readen_reg ? val1 && (pad1[31:6]==tagAddrA_reg[31:6]) : 1'b`muxval;
assign hit0=readen_reg ? val0 && (pad0[31:6]==tagAddrA_reg[31:6]) : 1'b`muxval;
assign hit3A=readen_reg & val3 && (pad3[31:4]==tagAddrA_reg[31:4]) : 1'bz;
assign hit2A=readen_reg & val2 && (pad2[31:4]==tagAddrA_reg[31:4]) : 1'bz;
assign hit1A=readen_reg & val1 && (pad1[31:4]==tagAddrA_reg[31:4]) : 1'bz;
assign hit0A=readen_reg & val0 && (pad0[31:4]==tagAddrA_reg[31:4]) : 1'bz;
 
assign hit3=insert_reg ? (pos3==2'b11) : 1'b`muxval;
assign hit2=insert_reg ? (pos2==2'b11) : 1'b`muxval;
assign hit1=insert_reg ? (pos1==2'b11) : 1'b`muxval;
assign hit0=insert_reg ? (pos0==2'b11) : 1'b`muxval;
assign hit3B=readen_reg & val3 && (pad3[31:4]==tagAddrB_reg[31:4]) : 1'bz;
assign hit2B=readen_reg & val2 && (pad2[31:4]==tagAddrB_reg[31:4]) : 1'bz;
assign hit1B=readen_reg & val1 && (pad1[31:4]==tagAddrB_reg[31:4]) : 1'bz;
assign hit0B=readen_reg & val0 && (pad0[31:4]==tagAddrB_reg[31:4]) : 1'bz;
 
assign hit3=(!insert_reg && !readen_reg) ? 1'b0 : 1'b`muxval;
assign hit2=(!insert_reg && !readen_reg) ? 1'b0 : 1'b`muxval;
assign hit1=(!insert_reg && !readen_reg) ? 1'b0 : 1'b`muxval;
assign hit0=(!insert_reg && !readen_reg) ? 1'b0 : 1'b`muxval;
assign hit3=insert_reg & (pos3==2'b11);
assign hit2=insert_reg & (pos2==2'b11);
assign hit1=insert_reg & (pos1==2'b11);
assign hit0=insert_reg & (pos0==2'b11);
 
assign hit=hit3 || hit2 || hit1 || hit0;
 
assign hitA=hit3A || hit2A || hit1A || hit0A;
assign hitB=hit3B || hit2B || hit1B || hit0B;
assign ram0We=insert_reg && hit0;
assign ram1We=insert_reg && hit1;
104,15 → 124,21
assign ram2We=insert_reg && hit2;
assign ram3We=insert_reg && hit3;
 
assign dataA=hit0 ? dataA0 : 32'b`muxval;
assign dataA=hit1 ? dataA1 : 32'b`muxval;
assign dataA=hit2 ? dataA2 : 32'b`muxval;
assign dataA=hit3 ? dataA3 : 32'b`muxval;
assign dataA= hit ? 32'b`muxval : 32'b0;
assign dataA=hit0A & tlbA ? dataA0 : 32'bz;
assign dataA=hit1A & tlbA ? dataA1 : 32'bz;
assign dataA=hit2A & tlbA ? dataA2 : 32'bz;
assign dataA=hit3A & tlbA ? dataA3 : 32'bz;
assign dataA=hit0B & tlbB ? dataA0 : 32'bz;
assign dataA=hit1B & tlbB ? dataA1 : 32'bz;
assign dataA=hit2B & tlbB ? dataA2 : 32'bz;
assign dataA=hit3B & tlbB ? dataA3 : 32'bz;
assign dataA= hitA & tlbA || hitB & tlbB ? 32'bz : 32'b0;
 
assign ramDataW=cacheLine_reg;
assign ramAddrW=tagAddrA_reg;
assign hit=hitA & tlbA || hitB & tlbB;
always @(posedge clk)
begin
readen_reg<=readen;
119,21 → 145,26
tagAddrA_reg<=tagAddrA;
insert_reg<=insert;
addrA_reg<=addrA;
addrB_reg<=addrB;
cacheLine_reg<=cacheLine;
initEntry_reg<=initEntry;
tagDataA_fwd<=ramTagDataA;
tag_fwd<=(readen_reg || insert_reg || initEntry_reg) && (addrA[11:6]==addrA_reg[11:6]);
tag_fwd<=(readen_reg || insert_reg || initEntry_reg) && (addrA[11:4]==addrA_reg[11:4]);
end
 
endmodule
 
module codecacheram(input clk,input we,input [5:0] addrA,input [5:0] addrW,output reg [511:0] dataA,input [511:0] dataW);
reg [511:0] ram [63:0];
module codecacheram(input clk,input we,input [7:0] addrA,input [7:0] addrW,output [127:0] dataA,input [127:0] dataW);
reg [127:0] ram [127:0];
reg [7:0] addrA_reg;
assign dataA=ram[addrA_reg];
always @(posedge clk)
begin
dataA<=ram[addrA];
if (we) ram[addrW]<=dataW;
addrA_reg<=addrA;
end
 
endmodule
148,12 → 179,15
length =29*4=116 bit tag
*/
 
module codecacheramtag(input clk,input we,input [5:0] addrA,input [5:0] addrW,output reg [115:0] dataA,input [115:0] dataW);
reg [115:0] ram [63:0];
module codecacheramtag(input clk,input we,input [7:0] addrA,input [7:0] addrW,output reg [123:0] dataA,input [123:0] dataW);
reg [123:0] ram [63:0];
reg [7:0] addrA_reg;
assign dataA=ram[addrA_reg];
always @(posedge clk)
begin
dataA<=ram[addrA];
addrA_reg<=addrA;
if (we) ram[addrW]<=dataW;
end
 
161,14 → 195,10
 
 
 
module instr_sel(input [511:0] dataIn,input [3:0] sel, output [31:0] instr);
wire [255:0] bit3Data;
wire [127:0] bit2Data;
module instr_sel(input [127:0] dataIn,input [1:0] sel, output [31:0] instr);
wire [63:0] bit1Data;
 
assign bit3Data=sel[3] ? dataIn[511:256] : dataIn[255:0];
assign bit2Data=sel[2] ? bit3Data[255:128] : bit3Data[127:0];
assign bit1Data=sel[1] ? bit2Data[127:64] : bit2Data[63:0];
assign bit1Data=sel[1] ? dataIn[127:64] : dataIn[63:0];
assign instr =sel[0] ? bit1Data[63:32] : bit1Data[31:0];
endmodule
176,34 → 206,34
 
module get_new_pos(input [1:0] pos0,input [1:0] pos1,input [1:0] pos2,input [1:0] pos3,
input hit0,input hit1,input hit2,input hit3,
output `muxnet [1:0] newPos0,output `muxnet [1:0] newPos1,output `muxnet [1:0] newPos2,output `muxnet [1:0] newPos3);
output wire [1:0] newPos0,output wire [1:0] newPos1,output wire [1:0] newPos2,output wire [1:0] newPos3);
wire hit;
 
assign hit=hit0 || hit1 || hit2 || hit3;
assign newPos0=hit0 ? 0 : 2'b`muxval;
assign newPos1=hit0 ? ((pos1<pos0) ? pos1+1:pos1 ) : 2'b`muxval;
assign newPos2=hit0 ? ((pos2<pos0) ? pos2+1:pos2 ) : 2'b`muxval;
assign newPos3=hit0 ? ((pos3<pos0) ? pos3+1:pos3 ) : 2'b`muxval;
assign newPos0=hit0 ? 0 : 2'bz;
assign newPos1=hit0 ? ((pos1<pos0) ? pos1+1:pos1 ) : 2'bz;
assign newPos2=hit0 ? ((pos2<pos0) ? pos2+1:pos2 ) : 2'bz;
assign newPos3=hit0 ? ((pos3<pos0) ? pos3+1:pos3 ) : 2'bz;
 
assign newPos1=hit1 ? 0 : 2'b`muxval;
assign newPos0=hit1 ? ((pos0<pos1) ? pos0+1:pos0 ) : 2'b`muxval;
assign newPos2=hit1 ? ((pos2<pos1) ? pos2+1:pos2 ) : 2'b`muxval;
assign newPos3=hit1 ? ((pos3<pos1) ? pos3+1:pos3 ) : 2'b`muxval;
assign newPos1=hit1 ? 0 : 2'bz;
assign newPos0=hit1 ? ((pos0<pos1) ? pos0+1:pos0 ) : 2'bz;
assign newPos2=hit1 ? ((pos2<pos1) ? pos2+1:pos2 ) : 2'bz;
assign newPos3=hit1 ? ((pos3<pos1) ? pos3+1:pos3 ) : 2'bz;
 
assign newPos2=hit2 ? 0 : 2'b`muxval;
assign newPos1=hit2 ? ((pos1<pos2) ? pos1+1:pos1 ) : 2'b`muxval;
assign newPos0=hit2 ? ((pos0<pos2) ? pos0+1:pos0 ) : 2'b`muxval;
assign newPos3=hit2 ? ((pos3<pos2) ? pos3+1:pos3 ) : 2'b`muxval;
assign newPos2=hit2 ? 0 : 2'bz;
assign newPos1=hit2 ? ((pos1<pos2) ? pos1+1:pos1 ) : 2'bz;
assign newPos0=hit2 ? ((pos0<pos2) ? pos0+1:pos0 ) : 2'bz;
assign newPos3=hit2 ? ((pos3<pos2) ? pos3+1:pos3 ) : 2'bz;
 
assign newPos3=hit3 ? 0 : 2'b`muxval;
assign newPos1=hit3 ? ((pos1<pos3) ? pos1+1:pos1 ) : 2'b`muxval;
assign newPos2=hit3 ? ((pos2<pos3) ? pos2+1:pos2 ) : 2'b`muxval;
assign newPos0=hit3 ? ((pos0<pos3) ? pos0+1:pos0 ) : 2'b`muxval;
assign newPos3=hit3 ? 0 : 2'bz;
assign newPos1=hit3 ? ((pos1<pos3) ? pos1+1:pos1 ) : 2'bz;
assign newPos2=hit3 ? ((pos2<pos3) ? pos2+1:pos2 ) : 2'bz;
assign newPos0=hit3 ? ((pos0<pos3) ? pos0+1:pos0 ) : 2'bz;
 
assign newPos0=hit ? 2'b`muxval : pos0;
assign newPos1=hit ? 2'b`muxval : pos1;
assign newPos2=hit ? 2'b`muxval : pos2;
assign newPos3=hit ? 2'b`muxval : pos3;
assign newPos0=hit ? 2'bz : pos0;
assign newPos1=hit ? 2'bz : pos1;
assign newPos2=hit ? 2'bz : pos2;
assign newPos3=hit ? 2'bz : pos3;
endmodule

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