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Fixed fround bug

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This commit is contained in:
Corey Hickson 2024-10-30 03:28:58 -07:00
parent 55cffcbc98
commit b9317e7cd3
1 changed files with 2 additions and 1 deletions
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src/fpu/fround.sv
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@ -76,7 +76,8 @@ module fround import cvw::*; #(parameter cvw_t P) (
assign Eeqm1 = ($signed(E) == -1);
// Logic for nonnegative mask and rounding bits
assign IMask = {1'b1, {P.NF{1'b0}}} >>> E; /// if E > Nf, this produces all 0s instead of all 1s. Hence exact handling is needed below.
// assign IMask = {1'b1, {P.NF{1'b0}}} >>> E; /// if E > Nf, this produces all 0s instead of all 1s. Hence exact handling is needed below.
assign IMask = $signed({1'b1, {P.NF{1'b0}}}) >>> E;
assign Tmasknonneg = ~IMask >>> 1'b1;
assign HotE = IMask & ~(IMask << 1'b1);
assign HotEP1 = HotE >> 1'b1;