Xavi/cvw
1
0
Fork 0
forked from Github_Repos/cvw
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fdivsqrtfsm conditional on IDIV

Browse Source
This commit is contained in:
David Harris 2022-12-27 22:14:09 -08:00
parent 9964fc9ebe
commit db933aa7e2
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
pipelined/src/fpu/fdivsqrt/fdivsqrtfsm.sv
View File

@ -65,8 +65,10 @@ module fdivsqrtfsm(
// terminate immediately on special cases
assign FSpecialCaseE = XZeroE | (YZeroE&~SqrtE) | XInfE | YInfE | XNaNE | YNaNE | (XsE&SqrtE);
assign ISpecialCaseE = AZeroE | BZeroE; // *** why is AZeroE part of this. Should other special cases be considered?
assign SpecialCaseE = MDUE ? ISpecialCaseE : FSpecialCaseE;
if (`IDIV_ON_FPU) begin
assign ISpecialCaseE = AZeroE | BZeroE; // *** why is AZeroE part of this. Should other special cases be considered?
assign SpecialCaseE = MDUE ? ISpecialCaseE : FSpecialCaseE;
end else assign SpecialCaseE = FSpecialCaseE;
flopenr #(1) SpecialCaseReg(clk, reset, ~StallM, SpecialCaseE, SpecialCaseM); // save SpecialCase for checking in fdivsqrtpostproc
// DIVN = `NF+3