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Zfa fmvh complete and passing tests:

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This commit is contained in:
David Harris 2024-01-17 06:18:00 -08:00
parent 07e7e02241
commit 4cfc86140c
3 changed files with 12 additions and 4 deletions
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4
src/fpu/fctrl.sv
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@ -148,10 +148,10 @@ module fctrl import cvw::*; #(parameter cvw_t P) (
else if (Funct3D == 3'b000 & Rs2D == 5'b00000)
ControlsD = `FCTRLW'b0_1_11_00_000_0_0_0_0; // fmv.x.w/d/h/q fp to int register
else if (P.ZFA_SUPPORTED & P.XLEN == 32 & P.D_SUPPORTED & Funct7D[1:0] == 2'b01 & Funct3D == 3'b000 & Rs2D == 5'b00001)
ControlsD = '0; // fmvh.x.d (Zfa) *** needs values for all moves
ControlsD = `FCTRLW'b0_1_11_00_000_0_0_0_1; // fmvh.x.d (Zfa)
// coverage off Q not supported in RV64GC
else if (P.ZFA_SUPPORTED & P.XLEN == 64 & P.Q_SUPPORTED & Funct7D[1:0] == 2'b11 & Funct3D == 3'b000 & Rs2D == 5'b00001)
ControlsD = '0; // fmvh.x.q (Zfa)
ControlsD = `FCTRLW'b0_1_11_00_000_0_0_0_1; // fmvh.x.q (Zfa)
// coverage on
7'b11110??: if (Funct3D == 3'b000 & Rs2D == 5'b00000)
ControlsD = `FCTRLW'b1_0_00_00_011_0_0_0_0; // fmv.w/d/h/q.x int to fp reg

3
src/fpu/fpu.sv
View File

@ -310,7 +310,8 @@ module fpu import cvw::*; #(parameter cvw_t P) (
// sign extend to XLEN if necessary
if (P.FLEN>P.XLEN)
assign IntSrcXE = SgnExtXE[P.XLEN-1:0];
if (P.ZFA_SUPPORTED) assign IntSrcXE = ZfaE ? XE[P.FLEN-1:P.FLEN/2] : SgnExtXE[P.XLEN-1:0]; // either fmvh.x.* or fmv.x.*
else assign IntSrcXE = SgnExtXE[P.XLEN-1:0];
else
assign IntSrcXE = {{P.XLEN-P.FLEN{mvsgn}}, SgnExtXE};
mux3 #(P.XLEN) IntResMux (ClassResE, IntSrcXE, CmpIntResE, {~FResSelE[1], FResSelE[0]}, FIntResE);

9
testbench/tests.vh
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@ -2031,7 +2031,14 @@ string arch64zbs[] = '{
"rv32i_m/D_Zfa/src/fmaxm_b1-01.S",
"rv32i_m/D_Zfa/src/fmaxm_b19-01.S",
"rv32i_m/D_Zfa/src/fmaxm.d_b1-01.S",
"rv32i_m/D_Zfa/src/fmaxm.d_b19-01.S"
"rv32i_m/D_Zfa/src/fmaxm.d_b19-01.S",
"rv32i_m/D_Zfa/src/fmvh.x.d_b1-01.S",
"rv32i_m/D_Zfa/src/fmvh.x.d_b22-01.S",
"rv32i_m/D_Zfa/src/fmvh.x.d_b23-01.S",
"rv32i_m/D_Zfa/src/fmvh.x.d_b24-01.S",
"rv32i_m/D_Zfa/src/fmvh.x.d_b27-01.S",
"rv32i_m/D_Zfa/src/fmvh.x.d_b28-01.S",
"rv32i_m/D_Zfa/src/fmvh.x.d_b29-01.S"
/* "rv32i_m/D_Zfa/src/fround_b1-01.S" */
};