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fctrl continued cleanup

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This commit is contained in:
David Harris 2023-03-30 13:07:39 -07:00
parent 01c5d58a64
commit 9129c3ac22
1 changed files with 5 additions and 7 deletions
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12
src/fpu/fctrl.sv
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@ -126,18 +126,18 @@ 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
// 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
// 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
// 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
@ -153,8 +153,6 @@ module fctrl (
ControlsD = `FCTRLW'b1_0_01_00_010_0_0_0; // fcvt.h.(s/d/q)
7'b0100011: if (Rs2D[4:2] == 3'b000 & SupportedFmt2 & Rs2D[1:0] != 2'b11)
ControlsD = `FCTRLW'b1_0_01_00_011_0_0_0; // fcvt.q.(s/h/d)
// *** other formats here
/* verilator lint_off CASEINCOMPLETE */
7'b1101000: case(Rs2D)
5'b00000: ControlsD = `FCTRLW'b1_0_01_00_101_0_0_0; // fcvt.s.w w->s
5'b00001: ControlsD = `FCTRLW'b1_0_01_00_100_0_0_0; // fcvt.s.wu wu->s
@ -204,12 +202,12 @@ 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
// 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_off CASEINCOMPLETE */
/* verilator lint_on CASEINCOMPLETE */
// unswizzle control bits
assign #1 {FRegWriteD, FWriteIntD, FResSelD, PostProcSelD, OpCtrlD, FDivStartD, IllegalFPUInstrD, FCvtIntD} = ControlsD;