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zbb handles count instructions

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Kevin Kim 2023-02-18 20:12:17 -08:00
parent 543dc1e36a
commit ecfcad20a0
1 changed files with 2 additions and 1 deletions
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src/ieu/bmu/zbb.sv
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@ -58,7 +58,8 @@ module zbb #(parameter WIDTH=32) (
//can replace with structural mux by looking at bit 4 in rs2 field //can replace with structural mux by looking at bit 4 in rs2 field
always_comb begin always_comb begin
case (ZBBSelect) case (ZBBSelect)
3'b111: ZBBResult = ALUResult; 3'b111: ZBBResult = ALUResult; // rotate
3'b000: ZBBResult = CntResult; // count
/*15'b0010100_101_00111: ZBBResult = OrcBResult; /*15'b0010100_101_00111: ZBBResult = OrcBResult;
15'b0110100_101_11000: ZBBResult = Rev8Result; 15'b0110100_101_11000: ZBBResult = Rev8Result;
15'b0110101_101_11000: ZBBResult = Rev8Result; 15'b0110101_101_11000: ZBBResult = Rev8Result;