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Added HW threads - Infinite loop

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This commit is contained in:
felsabbagh3
2019-03-27 03:44:14 -04:00
parent cc0fb0eece
commit 9b42e79dcf
22 changed files with 2756 additions and 1839 deletions
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47
rtl/VX_forwarding.v
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@@ -10,7 +10,7 @@ module VX_forwarding (
// INFO FROM EXE
input wire[4:0] in_execute_dest,
input wire[1:0] in_execute_wb,
input wire[31:0] in_execute_alu_result,
input wire[31:0] in_execute_alu_result[`NT_M1:0],
input wire[31:0] in_execute_PC_next,
input wire in_execute_is_csr,
input wire[11:0] in_execute_csr_address,
@@ -18,8 +18,8 @@ module VX_forwarding (
// INFO FROM MEM
input wire[4:0] in_memory_dest,
input wire[1:0] in_memory_wb,
input wire[31:0] in_memory_alu_result,
input wire[31:0] in_memory_mem_data,
input wire[31:0] in_memory_alu_result[`NT_M1:0],
input wire[31:0] in_memory_mem_data[`NT_M1:0],
input wire[31:0] in_memory_PC_next,
input wire in_memory_is_csr,
input wire[11:0] in_memory_csr_address,
@@ -28,16 +28,16 @@ module VX_forwarding (
// INFO FROM WB
input wire[4:0] in_writeback_dest,
input wire[1:0] in_writeback_wb,
input wire[31:0] in_writeback_alu_result,
input wire[31:0] in_writeback_mem_data,
input wire[31:0] in_writeback_alu_result[`NT_M1:0],
input wire[31:0] in_writeback_mem_data[`NT_M1:0],
input wire[31:0] in_writeback_PC_next,
// OUT SIGNALS
output wire out_src1_fwd,
output wire out_src2_fwd,
output wire out_csr_fwd,
output wire[31:0] out_src1_fwd_data,
output wire[31:0] out_src2_fwd_data,
output wire[31:0] out_src1_fwd_data[`NT_M1:0],
output wire[31:0] out_src2_fwd_data[`NT_M1:0],
output wire[31:0] out_csr_fwd_data,
output wire out_fwd_stall
);
@@ -61,6 +61,21 @@ module VX_forwarding (
wire csr_exe_fwd;
wire csr_mem_fwd;
wire[31:0] use_execute_PC_next[`NT_M1:0];
wire[31:0] use_memory_PC_next[`NT_M1:0];
wire[31:0] use_writeback_PC_next[`NT_M1:0];
genvar index;
generate
for (index=0; index < `NT; index=index+1)
begin: gen_code_label
assign use_execute_PC_next[index] = in_execute_PC_next;
assign use_memory_PC_next[index] = in_memory_PC_next;
assign use_writeback_PC_next[index] = in_writeback_PC_next;
end
endgenerate
assign exe_mem_read = (in_execute_wb == `WB_MEM);
assign mem_mem_read = (in_memory_wb == `WB_MEM);
@@ -134,19 +149,19 @@ module VX_forwarding (
// if (out_fwd_stall) $display("FWD STALL");
// end
assign out_src1_fwd_data = src1_exe_fwd ? ((exe_jal) ? in_execute_PC_next : in_execute_alu_result) :
(src1_mem_fwd) ? ((mem_jal) ? in_memory_PC_next : (mem_mem_read ? in_memory_mem_data : in_memory_alu_result)) :
( src1_wb_fwd ) ? (wb_jal ? in_writeback_PC_next : (wb_mem_read ? in_writeback_mem_data : in_writeback_alu_result)) :
32'hdeadbeef; // COMMENT
assign out_src1_fwd_data = src1_exe_fwd ? ((exe_jal) ? use_execute_PC_next : in_execute_alu_result) :
(src1_mem_fwd) ? ((mem_jal) ? use_memory_PC_next : (mem_mem_read ? in_memory_mem_data : in_memory_alu_result)) :
( src1_wb_fwd ) ? (wb_jal ? use_writeback_PC_next : (wb_mem_read ? in_writeback_mem_data : in_writeback_alu_result)) :
in_execute_alu_result; // last one should be deadbeef
assign out_src2_fwd_data = src2_exe_fwd ? ((exe_jal) ? in_execute_PC_next : in_execute_alu_result) :
(src2_mem_fwd) ? ((mem_jal) ? in_memory_PC_next : (mem_mem_read ? in_memory_mem_data : in_memory_alu_result)) :
( src2_wb_fwd ) ? (wb_jal ? in_writeback_PC_next : (wb_mem_read ? in_writeback_mem_data : in_writeback_alu_result)) :
32'hdeadbeef; // COMMENT
assign out_src2_fwd_data = src2_exe_fwd ? ((exe_jal) ? use_execute_PC_next : in_execute_alu_result) :
(src2_mem_fwd) ? ((mem_jal) ? use_memory_PC_next : (mem_mem_read ? in_memory_mem_data : in_memory_alu_result)) :
( src2_wb_fwd ) ? (wb_jal ? use_writeback_PC_next : (wb_mem_read ? in_writeback_mem_data : in_writeback_alu_result)) :
in_execute_alu_result; // last one should be deadbeef
assign out_csr_fwd_data = csr_exe_fwd ? in_execute_alu_result :
csr_mem_fwd ? in_memory_csr_result :
32'hdeadbeef; // COMMENT
in_execute_alu_result; // last one should be deadbeef