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Before Fetch->FE

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This commit is contained in:
felsabbagh3
2019-09-08 18:09:11 -04:00
parent c310e7381f
commit ad45758a35
26 changed files with 229 additions and 157 deletions
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33
rtl/Vortex.v
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@@ -44,8 +44,6 @@ wire[31:0] e_m_csr_result;
// From memory
wire memory_delay;
wire memory_branch_dir;
wire[31:0] memory_branch_dest;
// From csr handler
wire[31:0] csr_decode_csr_data;
@@ -57,11 +55,7 @@ wire forwarding_fwd_stall;
// Internal
wire total_freeze;
wire interrupt;
wire debug;
assign debug = 1'b0;
assign interrupt = 1'b0;
assign total_freeze = fetch_delay || memory_delay;
assign out_ebreak = fetch_ebreak;
@@ -91,8 +85,12 @@ VX_forward_mem_inter VX_fwd_mem();
VX_forward_wb_inter VX_fwd_wb();
VX_forward_response_inter VX_fwd_rsp();
VX_icache_response_inter icache_response_fe;
VX_icache_request_inter icache_request_fe;
VX_icache_response_inter icache_response_fe();
VX_icache_request_inter icache_request_fe();
VX_branch_response_inter VX_branch_rsp();
VX_jal_response_inter VX_jal_rsp();
assign icache_response_fe.instruction = icache_response_instruction;
assign icache_request_pc_address = icache_request_fe.pc_address;
@@ -100,22 +98,17 @@ assign icache_request_pc_address = icache_request_fe.pc_address;
VX_fetch vx_fetch(
.clk (clk),
.reset (reset),
.in_branch_dir (memory_branch_dir),
.in_freeze (total_freeze),
.in_branch_dest (memory_branch_dest),
.in_memory_delay (memory_delay),
.in_branch_stall (decode_branch_stall),
.in_fwd_stall (forwarding_fwd_stall),
.in_branch_stall_exe(execute_branch_stall),
.in_clone_stall (decode_clone_stall),
.in_jal (e_m_jal),
.in_jal_dest (e_m_jal_dest),
.in_interrupt (interrupt),
.in_debug (debug),
.in_memory_warp_num (VX_mem_wb.warp_num),
.VX_jal_rsp (VX_jal_rsp),
.icache_response (icache_response_fe),
.VX_warp_ctl (VX_warp_ctl),
.icache_request (icache_request_fe),
.VX_branch_rsp (VX_branch_rsp),
.out_delay (fetch_delay),
.out_ebreak (fetch_ebreak),
.out_which_wspawn (fetch_which_warp),
@@ -156,6 +149,11 @@ VX_execute vx_execute(
.out_branch_stall (execute_branch_stall)
);
assign VX_jal_rsp.jal = e_m_jal;
assign VX_jal_rsp.jal_dest = e_m_jal_dest;
assign VX_jal_rsp.jal_warp_num = VX_mem_req.warp_num;
VX_e_m_reg vx_e_m_reg(
.clk (clk),
.reset (reset),
@@ -181,8 +179,7 @@ VX_memory vx_memory(
.VX_fwd_mem (VX_fwd_mem),
.out_delay (memory_delay),
.out_branch_dir (memory_branch_dir),
.out_branch_dest (memory_branch_dest),
.VX_branch_rsp (VX_branch_rsp),
.in_cache_driver_out_data (in_cache_driver_out_data),
.out_cache_driver_in_address (out_cache_driver_in_address),