| Line 164... |
Line 164... |
IsRTI = isn[`INSTRUCTION_OP]==`R2 && isn[`INSTRUCTION_S2]==`RTI;
|
IsRTI = isn[`INSTRUCTION_OP]==`R2 && isn[`INSTRUCTION_S2]==`RTI;
|
endfunction
|
endfunction
|
|
|
function [2:0] fnInsLength;
|
function [2:0] fnInsLength;
|
input [47:0] ins;
|
input [47:0] ins;
|
|
`ifdef SUPPORT_DCI
|
if (ins[`INSTRUCTION_OP]==`CMPRSSD)
|
if (ins[`INSTRUCTION_OP]==`CMPRSSD)
|
fnInsLength = 3'd2;
|
fnInsLength = 3'd2;
|
else
|
else
|
|
`endif
|
case(ins[7:6])
|
case(ins[7:6])
|
2'd0: fnInsLength = 3'd4;
|
2'd0: fnInsLength = 3'd4;
|
2'd1: fnInsLength = 3'd6;
|
2'd1: fnInsLength = 3'd6;
|
default: fnInsLength = 3'd2;
|
default: fnInsLength = 3'd2;
|
endcase
|
endcase
|
| Line 202... |
Line 204... |
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
// Table of decompressed instructions.
|
// Table of decompressed instructions.
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
assign ack_o = cs_i & cyc_i & stb_i;
|
assign ack_o = cs_i & cyc_i & stb_i;
|
|
`ifdef SUPPORT_DCI
|
reg [47:0] DecompressTable [0:2047];
|
reg [47:0] DecompressTable [0:2047];
|
always @(posedge clk)
|
always @(posedge clk)
|
if (cs_i & cyc_i & stb_i & we_i)
|
if (cs_i & cyc_i & stb_i & we_i)
|
DecompressTable[adr_i[12:3]] <= dat_i[47:0];
|
DecompressTable[adr_i[12:3]] <= dat_i[47:0];
|
wire [47:0] expand0 = DecompressTable[{cmpgrp,insn0[15:8]}];
|
wire [47:0] expand0 = DecompressTable[{cmpgrp,insn0[15:8]}];
|
wire [47:0] expand1 = DecompressTable[{cmpgrp,insn1[15:8]}];
|
wire [47:0] expand1 = DecompressTable[{cmpgrp,insn1[15:8]}];
|
|
`endif
|
|
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
|
reg thread;
|
reg thread;
|
| Line 812... |
Line 816... |
assign fetchbuf1_thrd = thread_en;
|
assign fetchbuf1_thrd = thread_en;
|
|
|
reg [2:0] insln0, insln1;
|
reg [2:0] insln0, insln1;
|
always @*
|
always @*
|
begin
|
begin
|
|
`ifdef SUPPORT_DCI
|
if (insn0[5:0]==`CMPRSSD)
|
if (insn0[5:0]==`CMPRSSD)
|
insln0 <= 3'd2;
|
insln0 <= 3'd2;
|
else if (insn0[7:6]==2'b00 && insn0[`INSTRUCTION_OP]==`EXEC)
|
else
|
|
`endif
|
|
if (insn0[7:6]==2'b00 && insn0[`INSTRUCTION_OP]==`EXEC)
|
insln0 <= fnInsLength(codebuf0);
|
insln0 <= fnInsLength(codebuf0);
|
else
|
else
|
insln0 <= fnInsLength(insn0);
|
insln0 <= fnInsLength(insn0);
|
end
|
end
|
|
|
always @*
|
always @*
|
begin
|
begin
|
|
`ifdef SUPPORT_DCI
|
if (insn1[5:0]==`CMPRSSD)
|
if (insn1[5:0]==`CMPRSSD)
|
insln1 <= 3'd2;
|
insln1 <= 3'd2;
|
else if (insn1[7:6]==2'b00 && insn1[`INSTRUCTION_OP]==`EXEC)
|
else
|
|
`endif
|
|
if (insn1[7:6]==2'b00 && insn1[`INSTRUCTION_OP]==`EXEC)
|
insln1 <= fnInsLength(codebuf1);
|
insln1 <= fnInsLength(codebuf1);
|
else
|
else
|
insln1 <= fnInsLength(insn1);
|
insln1 <= fnInsLength(insn1);
|
end
|
end
|
|
|
reg [47:0] cinsn0, cinsn1;
|
reg [47:0] cinsn0, cinsn1;
|
|
|
always @*
|
always @*
|
begin
|
begin
|
|
`ifdef SUPPORT_DCI
|
if (insn0[5:0]==`CMPRSSD)
|
if (insn0[5:0]==`CMPRSSD)
|
cinsn0 <= expand0;
|
cinsn0 <= expand0;
|
else if (insn0[7:6]==2'b00 && insn0[`INSTRUCTION_OP]==`EXEC)
|
else
|
|
`endif
|
|
if (insn0[7:6]==2'b00 && insn0[`INSTRUCTION_OP]==`EXEC)
|
cinsn0 <= codebuf0;
|
cinsn0 <= codebuf0;
|
else if (insn0[7])
|
else if (insn0[7])
|
cinsn0 <= xinsn0;
|
cinsn0 <= xinsn0;
|
else
|
else
|
cinsn0 <= insn0;
|
cinsn0 <= insn0;
|
end
|
end
|
|
|
always @*
|
always @*
|
begin
|
begin
|
|
`ifdef SUPPORT_DCI
|
if (insn1[5:0]==`CMPRSSD)
|
if (insn1[5:0]==`CMPRSSD)
|
cinsn1 <= expand1;
|
cinsn1 <= expand1;
|
else if (insn1[7:6]==2'b00 && insn1[`INSTRUCTION_OP]==`EXEC)
|
else
|
|
`endif
|
|
if (insn1[7:6]==2'b00 && insn1[`INSTRUCTION_OP]==`EXEC)
|
cinsn1 <= codebuf1;
|
cinsn1 <= codebuf1;
|
else if (insn1[7])
|
else if (insn1[7])
|
cinsn1 <= xinsn1;
|
cinsn1 <= xinsn1;
|
else
|
else
|
cinsn1 <= insn1;
|
cinsn1 <= insn1;
|
