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removed main instruction decoder dependence on bmu controller

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This commit is contained in:
Kevin Kim 2023-03-02 15:28:33 -08:00
parent 05b329dd6a
commit 910eeea3ff
1 changed files with 2 additions and 2 deletions
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src/ieu/controller.sv
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@ -162,14 +162,14 @@ module controller(
ControlsD = `CTRLW'b1_101_01_11_001_0_0_0_0_0_0_0_0_0_10_0; // amo
end else
ControlsD = `CTRLW'b0_000_00_00_000_0_0_0_0_0_0_0_0_0_00_1; // Non-implemented instruction
7'b0110011: if (Funct7D == 7'b0000000 | Funct7D == 7'b0100000 | ((`ZBB_SUPPORTED & BSelectD[2]) | (`ZBC_SUPPORTED & BSelectD[1]) | (`ZBS_SUPPORTED & BSelectD[0]) | (`ZBA_SUPPORTED & BSelectD[3])))
7'b0110011: if (Funct7D == 7'b0000000 | Funct7D == 7'b0100000)
ControlsD = `CTRLW'b1_000_00_00_000_0_1_0_0_0_0_0_0_0_00_0; // R-type
else if (Funct7D == 7'b0000001 & (`M_SUPPORTED | (`ZMMUL_SUPPORTED & ~Funct3D[2])))
ControlsD = `CTRLW'b1_000_00_00_011_0_0_0_0_0_0_0_0_1_00_0; // Multiply/divide
else
ControlsD = `CTRLW'b0_000_00_00_000_0_0_0_0_0_0_0_0_0_00_1; // Non-implemented instruction
7'b0110111: ControlsD = `CTRLW'b1_100_01_00_000_0_0_0_1_0_0_0_0_0_00_0; // lui
7'b0111011: if ((Funct7D == 7'b0000000 | Funct7D == 7'b0100000 | (`ZBA_SUPPORTED & BSelectD[3]) | (`ZBB_SUPPORTED & BSelectD[2])) & `XLEN == 64)
7'b0111011: if ((Funct7D == 7'b0000000 | Funct7D == 7'b0100000) & `XLEN == 64)
ControlsD = `CTRLW'b1_000_00_00_000_0_1_0_0_1_0_0_0_0_00_0; // R-type W instructions for RV64i
else if (Funct7D == 7'b0000001 & (`M_SUPPORTED | (`ZMMUL_SUPPORTED & ~Funct3D[2])) & `XLEN == 64)
ControlsD = `CTRLW'b1_000_00_00_011_0_0_0_0_1_0_0_0_1_00_0; // W-type Multiply/Divide