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Decode AMOXOR_D (and similar instructions) only when XLEN=64bits (#1355)

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JeanRochCoulon 2023-09-01 11:57:08 +02:00 • committed by GitHub
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core/decoder.sv
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@ -1092,7 +1092,7 @@ module decoder import ariane_pkg::*; #(
default: illegal_instr = 1'b1;
endcase
// double words
end else if (CVA6Cfg.RVA && instr.stype.funct3 == 3'h3) begin
end else if (riscv::IS_XLEN64 && CVA6Cfg.RVA && instr.stype.funct3 == 3'h3) begin
unique case (instr.instr[31:27])
5'h0: instruction_o.op = ariane_pkg::AMO_ADDD;
5'h1: instruction_o.op = ariane_pkg::AMO_SWAPD;