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Fix the riscv_dret_test #2338

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Merged
merged 1 commit into from
Dec 3, 2025
+7 −5
Merged

Fix the riscv_dret_test #2338

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12 changes: 7 additions & 5 deletions dv/uvm/core_ibex/tests/core_ibex_test_lib.sv
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Original file line number Diff line number Diff line change
Expand Up @@ -1118,14 +1118,16 @@ class core_ibex_directed_test extends core_ibex_debug_intr_basic_test;

// Illegal instruction checker
virtual task check_illegal_insn(string exception_msg);
check_next_core_status(HANDLING_EXCEPTION, "Core did not jump to vectored exception handler", 10000);
check_next_core_status(ILLEGAL_INSTR_EXCEPTION, exception_msg, 10000);
check_mcause(1'b0, ExcCauseIllegalInsn);
// Ibex will wait to change the privilege mode until it is allowed to FLUSH. This happens because
// we are blocking the current instruction until the instruction from WB stage is ready.
// Ibex will wait to change the privilege mode until it is allowed to FLUSH. This happens
// because it is blocking the current instruction until the instruction from WB stage is ready.
wait (dut_vif.dut_cb.ctrl_fsm_cs == FLUSH);
clk_vif.wait_clks(2);
check_priv_mode(PRIV_LVL_M);
check_next_core_status(HANDLING_EXCEPTION,
"Core did not jump to vectored exception handler",
10000);
check_next_core_status(ILLEGAL_INSTR_EXCEPTION, exception_msg, 10000);
check_mcause(1'b0, ExcCauseIllegalInsn);
wait_ret("mret", 15000);
endtask

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