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fctrl updated and buildroot working again

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This commit is contained in:
David Harris 2023-03-30 13:17:15 -07:00
parent fc01f45c80
commit a4ae1b9cbb
1 changed files with 1 additions and 8 deletions
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9
src/fpu/fctrl.sv
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@ -126,18 +126,15 @@ module fctrl (
3'b000: ControlsD = `FCTRLW'b1_0_00_xx_000_0_0_0; // fsgnj
3'b001: ControlsD = `FCTRLW'b1_0_00_xx_001_0_0_0; // fsgnjn
3'b010: ControlsD = `FCTRLW'b1_0_00_xx_010_0_0_0; // fsgnjx
// default: ControlsD = `FCTRLW'b0_0_00_xx_000_0_1_0; // non-implemented instruction
endcase
7'b00101??: case(Funct3D)
3'b000: ControlsD = `FCTRLW'b1_0_00_xx_110_0_0_0; // fmin
3'b001: ControlsD = `FCTRLW'b1_0_00_xx_101_0_0_0; // fmax
// default: ControlsD = `FCTRLW'b0_0_00_xx_000_0_1_0; // non-implemented instruction
endcase
7'b10100??: case(Funct3D)
3'b010: ControlsD = `FCTRLW'b0_1_00_xx_010_0_0_0; // feq
3'b001: ControlsD = `FCTRLW'b0_1_00_xx_001_0_0_0; // flt
3'b000: ControlsD = `FCTRLW'b0_1_00_xx_011_0_0_0; // fle
// default: ControlsD = `FCTRLW'b0_0_00_xx_000__0_1_0; // non-implemented instruction
endcase
7'b11100??: if (Funct3D == 3'b001 & Rs2D == 5'b00000)
ControlsD = `FCTRLW'b0_1_10_xx_000_0_0_0; // fclass
@ -202,9 +199,7 @@ module fctrl (
5'b00011: ControlsD = `FCTRLW'b0_1_01_00_010_0_0_1; // fcvt.lu.q q->lu
endcase
// default: ControlsD = `FCTRLW'b0_0_00_xx_000_0_1_0; // non-implemented instruction
endcase
// default: ControlsD = `FCTRLW'b0_0_00_xx_000_0_1_0; // non-implemented instruction
endcase
end
/* verilator lint_on CASEINCOMPLETE */
@ -333,7 +328,5 @@ module fctrl (
flopenrc #(4) MWCtrlReg(clk, reset, FlushW, ~StallW,
{FRegWriteM, FResSelM, FCvtIntM},
{FRegWriteW, FResSelW, FCvtIntW});
//assign FCvtIntW = (FResSelW == 2'b01);
endmodule