[hardware] 🐛 Reshuffle when needed if vl == vlmax but vstart > 0

pulp-platform · Dec 17, 2024 · 048c027 · 048c027
1 parent d29d5d8
commit 048c027
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/hardware/src/ara_dispatcher.sv b/hardware/src/ara_dispatcher.sv
@@ -3206,7 +3206,7 @@ module ara_dispatcher import ara_pkg::*; import rvv_pkg::*; #(
         // During a vstore, if vstart > 0, reshuffle immediately not to complicate operand fetch stage
         reshuffle_req_d = {ara_req_d.use_vs1 && (ara_req_d.eew_vs1    != eew_q[ara_req_d.vs1]) && eew_valid_q[ara_req_d.vs1] && (in_lane_op || (is_vstore && (csr_vstart_q != '0))),
                            ara_req_d.use_vs2 && (ara_req_d.eew_vs2    != eew_q[ara_req_d.vs2]) && eew_valid_q[ara_req_d.vs2] && in_lane_op,
-                           ara_req_d.use_vd  && (ara_req_d.vtype.vsew != eew_q[ara_req_d.vd ]) && eew_valid_q[ara_req_d.vd ] && csr_vl_q != ((VLENB << ara_req_d.emul[1:0]) >> ara_req_d.vtype.vsew)};
+                           ara_req_d.use_vd  && (ara_req_d.vtype.vsew != eew_q[ara_req_d.vd ]) && eew_valid_q[ara_req_d.vd ] && !(csr_vstart_q == 0 && (csr_vl_q == ((VLENB << ara_req_d.emul[1:0]) >> ara_req_d.vtype.vsew)))};
         // Mask out requests if they refer to the same register!
         reshuffle_req_d &= {
           (insn.varith_type.rs1 != insn.varith_type.rs2) && (insn.varith_type.rs1 != insn.varith_type.rd),