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minor update

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This commit is contained in:
Blaise Tine
2021-03-21 11:39:33 -07:00
parent e85fa9d842
commit 09194a8501
1 changed files with 6 additions and 6 deletions
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12
hw/rtl/fp_cores/VX_fp_cvt.v
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@@ -182,7 +182,12 @@ module VX_fp_cvt #(
// Handle INT casts // Handle INT casts
if (is_itof_s0) begin if (is_itof_s0) begin
if ($signed(destination_exp[i]) < $signed(-MAN_BITS)) begin if ($signed(destination_exp[i]) >= $signed(2**EXP_BITS-1)) begin
// Overflow or infinities (for proper rounding)
final_exp = (2**EXP_BITS-2); // largest normal value
preshift_mant = ~0; // largest normal value and RS bits set
of_before_round = 1'b1;
end else if ($signed(destination_exp[i]) < $signed(-MAN_BITS)) begin
// Limit the shift to retain sticky bits // Limit the shift to retain sticky bits
final_exp = 0; // denormal result final_exp = 0; // denormal result
denorm_shamt = denorm_shamt + (2 + MAN_BITS); // to sticky denorm_shamt = denorm_shamt + (2 + MAN_BITS); // to sticky
@@ -190,11 +195,6 @@ module VX_fp_cvt #(
// Denormalize underflowing values // Denormalize underflowing values
final_exp = 0; // denormal result final_exp = 0; // denormal result
denorm_shamt = denorm_shamt + 1 - destination_exp[i]; // adjust right shifting denorm_shamt = denorm_shamt + 1 - destination_exp[i]; // adjust right shifting
end else if ($signed(destination_exp[i]) >= $signed(2**EXP_BITS-1)) begin
// Overflow or infinities (for proper rounding)
final_exp = (2**EXP_BITS-2); // largest normal value
preshift_mant = ~0; // largest normal value and RS bits set
of_before_round = 1'b1;
end end
end else begin end else begin
if ($signed(input_exp[i]) >= $signed((MAX_INT_WIDTH-1) + unsigned_s0)) begin if ($signed(input_exp[i]) >= $signed((MAX_INT_WIDTH-1) + unsigned_s0)) begin