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minor update

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This commit is contained in:
Blaise Tine
2020-05-21 13:42:08 -04:00
parent d12c40131e
commit cf22ef2bf3
16 changed files with 82 additions and 92 deletions
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19
hw/rtl/libs/VX_divide.v
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@@ -27,9 +27,7 @@ module VX_divide #(
generate
if (NREP != DREP) begin
`IGNORE_WARNINGS_BEGIN
different_nrep_drep_not_yet_supported non_existing_module();
`IGNORE_WARNINGS_END
end
if (IMPL == "quartus") begin
@@ -58,6 +56,7 @@ module VX_divide #(
wire [WIDTHN-1:0] numer_pipe_end;
wire [WIDTHD-1:0] denom_pipe_end;
if (PIPELINE == 0) begin
assign numer_pipe_end = numer;
assign denom_pipe_end = denom;
@@ -100,16 +99,6 @@ module VX_divide #(
if (NREP == "SIGNED") begin
/*VX_divide_ifnal_signed #(
.WIDTHN,
.WIDTHD
)div(
.numer(numer_pipe_end),
.denom(denom_pipe_end),
.quotient,
.remainder
);*/
always @(*) begin
if (denom_pipe_end == 0) begin
quotient = 32'hffffffff;
@@ -118,12 +107,12 @@ module VX_divide #(
else if (denom_pipe_end == 32'hffffffff && numer_pipe_end == 32'h80000000) begin
// this edge case kills verilator in some cases by causing a division
// overflow exception. INT_MIN / -1 (on x86)
quotient = 0;
quotient = 0;
remainder = 0;
end
else begin
quotient = $signed($signed(numer_pipe_end)/$signed(denom_pipe_end));
remainder = $signed($signed(numer_pipe_end)%$signed(denom_pipe_end));
quotient = $signed($signed(numer_pipe_end) / $signed(denom_pipe_end));
remainder = $signed($signed(numer_pipe_end) % $signed(denom_pipe_end));
end
end