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fixed critical path in operand collector's war_dep_check
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This commit is contained in:
tinebp 2025-03-04 09:58:46 -08:00
parent bbc44350b7
commit c078721ef7
1 changed files with 4 additions and 3 deletions
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7
hw/rtl/core/VX_opc_unit.sv
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@ -202,11 +202,12 @@ module VX_opc_unit import VX_gpu_pkg::*; #(
other_pending_regs |= pending_regs_in[i] & {NUM_REGS{staging_if.data.wis == pending_wis_in[i]}}; other_pending_regs |= pending_regs_in[i] & {NUM_REGS{staging_if.data.wis == pending_wis_in[i]}};
end end
end end
wire war_dp_check = staging_if.data.wb && (other_pending_regs[rd] != 0); wire war_dep_check;
`BUFFER(war_dep_check, staging_if.data.wb && (other_pending_regs[rd] != 0));
wire output_ready_w; wire output_ready_w;
assign output_ready = output_ready_w && ~war_dp_check; assign output_ready = output_ready_w && ~war_dep_check;
wire output_valid = (state == STATE_DISPATCH) && ~war_dp_check; wire output_valid = (state == STATE_DISPATCH) && ~war_dep_check;
// simd iterator // simd iterator
VX_nz_iterator #( VX_nz_iterator #(