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Fix partial case overlap lint for shared A/Zbb ALU ops

This commit is contained in:
Luke Wren 2024-06-06 06:58:59 +01:00
parent e34aa5bb45
commit e3b3893cdf
1 changed files with 9 additions and 9 deletions
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18
hdl/arith/hazard3_alu.v
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@ -162,11 +162,15 @@ always @ (*) begin
{7'bzzzzzzz, ALUOP_SRL }: result = shift_dout;
{7'bzzzzzzz, ALUOP_SRA }: result = shift_dout;
{7'bzzzzzzz, ALUOP_SLL }: result = shift_dout;
// A (duplicates of Zbb)
{7'b1zzzzzz, ALUOP_MAX }: result = lt ? op_b : op_a;
{7'b1zzzzzz, ALUOP_MAXU }: result = lt ? op_b : op_a;
{7'b1zzzzzz, ALUOP_MIN }: result = lt ? op_a : op_b;
{7'b1zzzzzz, ALUOP_MINU }: result = lt ? op_a : op_b;
// A or Zbb (written this way to avoid case overlap)
{7'b1zzzzzz, ALUOP_MAX },
{7'b0z1zzzz, ALUOP_MAX }: result = lt ? op_b : op_a;
{7'b1zzzzzz, ALUOP_MIN },
{7'b0z1zzzz, ALUOP_MIN }: result = lt ? op_a : op_b;
{7'b1zzzzzz, ALUOP_MAXU },
{7'b0z1zzzz, ALUOP_MAXU }: result = lt ? op_b : op_a;
{7'b1zzzzzz, ALUOP_MINU },
{7'b0z1zzzz, ALUOP_MINU }: result = lt ? op_a : op_b;
// Zba
{7'bz1zzzzz, ALUOP_SHXADD }: result = sum;
// Zbb
@ -176,10 +180,6 @@ always @ (*) begin
{7'bzz1zzzz, ALUOP_CLZ }: result = {{W_DATA-W_SHAMT-1{1'b0}}, ctz_clz};
{7'bzz1zzzz, ALUOP_CTZ }: result = {{W_DATA-W_SHAMT-1{1'b0}}, ctz_clz};
{7'bzz1zzzz, ALUOP_CPOP }: result = {{W_DATA-W_SHAMT-1{1'b0}}, cpop};
{7'bzz1zzzz, ALUOP_MAX }: result = lt ? op_b : op_a;
{7'bzz1zzzz, ALUOP_MAXU }: result = lt ? op_b : op_a;
{7'bzz1zzzz, ALUOP_MIN }: result = lt ? op_a : op_b;
{7'bzz1zzzz, ALUOP_MINU }: result = lt ? op_a : op_b;
{7'bzz1zzzz, ALUOP_SEXT_B }: result = {{W_DATA-8{op_a[7]}}, op_a[7:0]};
{7'bzz1zzzz, ALUOP_SEXT_H }: result = {{W_DATA-16{op_a[15]}}, op_a[15:0]};
{7'bzz1zzzz, ALUOP_ZEXT_H }: result = {{W_DATA-16{1'b0}}, op_a[15:0]};