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Fixed alu_imm for a few RV64UI imm based instrs

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Naga Ram Jaswanth Chunduru 2023-03-30 18:24:14 -04:00 • committed by Blaise Tine
parent d98643076d
commit 01723a6df0
1 changed files with 6 additions and 6 deletions
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12
hw/rtl/core/VX_decode.sv
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@ -53,12 +53,12 @@ module VX_decode #(
wire [4:0] rs2 = instr[24:20];
wire [4:0] rs3 = instr[31:27];
wire [19:0] upper_imm = {func7, rs2, rs1, func3};
wire [11:0] alu_imm = (func3[0] && ~func3[1]) ? {{6{1'b0}}, instr[25:20]} : u_12;
wire [11:0] s_imm = {func7, rd};
wire [12:0] b_imm = {instr[31], instr[7], instr[30:25], instr[11:8], 1'b0};
wire [20:0] jal_imm = {instr[31], instr[19:12], instr[20], instr[30:21], 1'b0};
wire [19:0] upper_imm = {func7, rs2, rs1, func3};
// wire [11:0] alu_imm = (func3 == 3'b001) ? {{7{1'b0}}, instr[25:20]} : ((func3[0] && ~func3[1]) ? {{7{1'b0}}, rs2} : u_12);
wire [11:0] alu_imm = (func3 == 3'b001) ? {{6{1'b0}}, instr[25:20]} : ((func3[0] && ~func3[1]) ? {{7{1'b0}}, rs2} : u_12);
wire [11:0] s_imm = {func7, rd};
wire [12:0] b_imm = {instr[31], instr[7], instr[30:25], instr[11:8], 1'b0};
wire [20:0] jal_imm = {instr[31], instr[19:12], instr[20], instr[30:21], 1'b0};
`UNUSED_VAR (rs3)