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Fixed early termination for square root

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David Harris 2022-12-26 08:54:57 -08:00
parent 71f214df20
commit add381a09e
1 changed files with 1 additions and 2 deletions
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pipelined/src/fpu/fdivsqrt/fdivsqrtfsm.sv
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@ -116,8 +116,7 @@ module fdivsqrtfsm(
if (SpecialCaseE) state <= #1 DONE; if (SpecialCaseE) state <= #1 DONE;
else state <= #1 BUSY; else state <= #1 BUSY;
end else if (state == BUSY) begin end else if (state == BUSY) begin
// if (step == 1 | WZeroE) state <= #1 DONE; // finished steps or terminate early on zero residual if (step == 1 | WZeroE) state <= #1 DONE; // finished steps or terminate early on zero residual
if (step == 1) state <= #1 DONE; // finished steps or terminate early on zero residual
step <= step - 1; step <= step - 1;
end else if (state == DONE) begin end else if (state == DONE) begin
if (StallM) state <= #1 DONE; if (StallM) state <= #1 DONE;