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Make disassemble a function instead of a module

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Jordan Carlin 2025-02-09 12:36:41 -08:00
parent 1db1b3bd1e
commit 9e2a2ec31b
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1 changed files with 9 additions and 5 deletions
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14
testbench/common/trace2riscvISACOV.sv
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@ -1,9 +1,15 @@
// trace2riscvISACOV.sv
// SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1
// Load which extensions are supported in this configuration (from $WALLY/config/<config>/coverage.svh)
`include "coverage.svh"
`include "disassemble.svh"
// Load the coverage classes
`include "RISCV_coverage.svh"
module trace2riscvISACOV(rvviTrace rvvi);
string disass;
// Connect coverage class to RVVI trace interface
coverage #(rvvi.ILEN, rvvi.XLEN, rvvi.FLEN, rvvi.VLEN, rvvi.NHART, rvvi.RETIRE) riscvISACOV;
initial begin
@ -11,17 +17,15 @@ module trace2riscvISACOV(rvviTrace rvvi);
$display("trace2riscvISACOV: coverage initialized");
end
// Dissassemble instruction from RVVI trace for processing by coverage model
string disass;
dissassembler #(rvvi.XLEN) dissassembler(rvvi.insn[0][0], disass);
// Invoke the riscvISACOV sample function on each clock edge for the current Instruction
// If RVVI accepts more than one instruction or hart, iterate over all of them in the
// correct order of retirement (TODO: multiple instructions/harts not implemented)
always_ff @(posedge rvvi.clk) begin
if (rvvi.valid[0][0] == 1) begin
disass = disassemble(rvvi.insn[0][0]);
riscvISACOV.sample(rvvi.trap[0][0], 0, 0, {$sformatf("%h ", rvvi.insn[0][0]), disass});
$display("trace2riscvISACOV: sample taken for instruction %h: %s", rvvi.insn[0][0], disass);
// $display("trace2riscvISACOV: sample taken for instruction %h: %s", rvvi.insn[0][0], disass);
$display("0x%h: %s", rvvi.insn[0][0], disass);
end
end
endmodule