Hardware
/
picorv32
mirror of https://github.com/YosysHQ/picorv32.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Added rvfi_mem interface

This commit is contained in:
Clifford Wolf 2016-12-19 11:48:57 +01:00
parent ef86b30b25
commit f5d146c2f1
1 changed files with 28 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
picorv32.v
View File

@ -103,10 +103,11 @@ module picorv32 #(
output reg [31:0] eoi, output reg [31:0] eoi,
`ifdef RISCV_FORMAL `ifdef RISCV_FORMAL
output reg rvfi_valid, output reg rvfi_valid,
output reg [4:0] rvfi_rs1, output reg [ 7:0] rvfi_order,
output reg [4:0] rvfi_rs2, output reg [ 4:0] rvfi_rs1,
output reg [4:0] rvfi_rd, output reg [ 4:0] rvfi_rs2,
output reg [ 4:0] rvfi_rd,
output reg [31:0] rvfi_insn, output reg [31:0] rvfi_insn,
output reg [31:0] rvfi_pre_pc, output reg [31:0] rvfi_pre_pc,
output reg [31:0] rvfi_pre_rs1, output reg [31:0] rvfi_pre_rs1,
@ -114,6 +115,11 @@ module picorv32 #(
output reg [31:0] rvfi_post_pc, output reg [31:0] rvfi_post_pc,
output reg [31:0] rvfi_post_rd, output reg [31:0] rvfi_post_rd,
output reg rvfi_post_trap, output reg rvfi_post_trap,
output reg [31:0] rvfi_mem_addr,
output reg [ 3:0] rvfi_mem_rmask,
output reg [ 3:0] rvfi_mem_wmask,
output reg [31:0] rvfi_mem_rdata,
output reg [31:0] rvfi_mem_wdata,
`endif `endif
// Trace Interface // Trace Interface
@ -1865,6 +1871,8 @@ module picorv32 #(
`ifdef RISCV_FORMAL `ifdef RISCV_FORMAL
always @(posedge clk) begin always @(posedge clk) begin
rvfi_valid <= resetn && (launch_next_insn || trap) && dbg_valid_insn; rvfi_valid <= resetn && (launch_next_insn || trap) && dbg_valid_insn;
rvfi_order <= 0;
rvfi_insn <= dbg_insn_opcode; rvfi_insn <= dbg_insn_opcode;
rvfi_rs1 <= dbg_rs1val_valid ? dbg_insn_rs1 : 0; rvfi_rs1 <= dbg_rs1val_valid ? dbg_insn_rs1 : 0;
rvfi_rs2 <= dbg_rs2val_valid ? dbg_insn_rs2 : 0; rvfi_rs2 <= dbg_rs2val_valid ? dbg_insn_rs2 : 0;
@ -1885,6 +1893,22 @@ module picorv32 #(
rvfi_rd <= 0; rvfi_rd <= 0;
rvfi_post_rd <= 0; rvfi_post_rd <= 0;
end end
if (dbg_mem_valid && dbg_mem_ready) begin
if (dbg_mem_instr) begin
rvfi_mem_addr <= 0;
rvfi_mem_rmask <= 0;
rvfi_mem_wmask <= 0;
rvfi_mem_rdata <= 0;
rvfi_mem_wdata <= 0;
end else begin
rvfi_mem_addr <= dbg_mem_addr;
rvfi_mem_rmask <= dbg_mem_wstrb ? 0 : ~0;
rvfi_mem_wmask <= dbg_mem_wstrb;
rvfi_mem_rdata <= dbg_mem_rdata;
rvfi_mem_wdata <= dbg_mem_wdata;
end
end
end end
always @* begin always @* begin