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Removed unnecessary start term from initialization muxes to simplify and improve coverage

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This commit is contained in:
David Harris 2023-04-12 03:34:01 -07:00
parent 3b6e397172
commit 44023e7ee7
1 changed files with 3 additions and 3 deletions
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6
src/fpu/fdivsqrt/fdivsqrtiter.sv
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@ -79,8 +79,8 @@ module fdivsqrtiter(
assign initUM = {~SqrtE, {(`DIVb){1'b0}}}; assign initUM = {~SqrtE, {(`DIVb){1'b0}}};
mux2 #(`DIVb+1) Umux(UNext[`DIVCOPIES-1], initU, IFDivStartE, UMux); mux2 #(`DIVb+1) Umux(UNext[`DIVCOPIES-1], initU, IFDivStartE, UMux);
mux2 #(`DIVb+1) UMmux(UMNext[`DIVCOPIES-1], initUM, IFDivStartE, UMMux); mux2 #(`DIVb+1) UMmux(UMNext[`DIVCOPIES-1], initUM, IFDivStartE, UMMux);
flopen #(`DIVb+1) UReg(clk, IFDivStartE|FDivBusyE, UMux, U[0]); flopen #(`DIVb+1) UReg(clk, FDivBusyE, UMux, U[0]);
flopen #(`DIVb+1) UMReg(clk, IFDivStartE|FDivBusyE, UMMux, UM[0]); flopen #(`DIVb+1) UMReg(clk, FDivBusyE, UMMux, UM[0]);
// C register/initialization mux // C register/initialization mux
// Initialize C to -1 for sqrt and -R for division // Initialize C to -1 for sqrt and -R for division
@ -93,7 +93,7 @@ module fdivsqrtiter(
assign initC = {initCUpper, {`DIVb{1'b0}}}; assign initC = {initCUpper, {`DIVb{1'b0}}};
mux2 #(`DIVb+2) cmux(C[`DIVCOPIES], initC, IFDivStartE, NextC); mux2 #(`DIVb+2) cmux(C[`DIVCOPIES], initC, IFDivStartE, NextC);
flopen #(`DIVb+2) creg(clk, IFDivStartE|FDivBusyE, NextC, C[0]); flopen #(`DIVb+2) creg(clk, FDivBusyE, NextC, C[0]);
// Divisior register // Divisior register
flopen #(`DIVb) dreg(clk, IFDivStartE, DPreproc, D); flopen #(`DIVb) dreg(clk, IFDivStartE, DPreproc, D);