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ecp5: leave comment behind that LSRMUX is unreliable

Browse source 
https://github.com/YosysHQ/yosys/pull/1925#discussion_r408200521
This commit is contained in:
Eddie Hung 2020-04-14 08:08:05 -07:00
parent e21450c890
commit c6e270ee74
1 changed files with 5 additions and 5 deletions
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10
techlibs/ecp5/cells_map.v
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@ -48,7 +48,7 @@ module \$_DFF_xxx_ (input D, C, R, output Q);
localparam CLKMUX = "INV";
else
localparam CLKMUX = "CLK";
// TODO: Why not use LSRMUX param?
// LSRMUX is unreliable, thus don't use it
if (_TECHMAP_CELLTYPE_[2*8+:8] == "N")
wire LSR_ = !R;
else
@ -77,7 +77,7 @@ module \$__DFFS_xxx_ (input D, C, R, output Q);
localparam CLKMUX = "INV";
else
localparam CLKMUX = "CLK";
// TODO: Why not use LSRMUX param?
// LSRMUX is unreliable, thus don't use it
if (_TECHMAP_CELLTYPE_[2*8+:8] == "N")
wire LSR_ = !R;
else
@ -112,7 +112,7 @@ module \$__DFFE_xxx_ (input D, C, E, R, output Q);
localparam CLKMUX = "INV";
else
localparam CLKMUX = "CLK";
// TODO: Why not use LSRMUX param?
// LSRMUX is unreliable, thus don't use it
if (_TECHMAP_CELLTYPE_[2*8+:8] == "N")
wire LSR_ = !R;
else
@ -143,7 +143,7 @@ module \$__DFFSE_xxx_ (input D, C, E, R, output Q);
localparam CLKMUX = "INV";
else
localparam CLKMUX = "CLK";
// TODO: Why not use LSRMUX param?
// LSRMUX is unreliable, thus don't use it
if (_TECHMAP_CELLTYPE_[2*8+:8] == "N")
wire LSR_ = !R;
else
@ -183,7 +183,7 @@ module \$_DLATCH_x_ (input E, input D, output Q);
parameter _TECHMAP_CELLTYPE_ = "";
wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
generate
// TODO: Why not use LSRMUX param?
// LSRMUX is unreliable, thus don't use it
if (_TECHMAP_CELLTYPE_[1*8+:8] == "N")
wire LSR_ = !E;
else