summaryrefslogtreecommitdiff
path: root/techlibs/common/stdcells.v
diff options
context:
space:
mode:
Diffstat (limited to 'techlibs/common/stdcells.v')
-rw-r--r--techlibs/common/stdcells.v77
1 files changed, 36 insertions, 41 deletions
diff --git a/techlibs/common/stdcells.v b/techlibs/common/stdcells.v
index e37ad20d..83384ce6 100644
--- a/techlibs/common/stdcells.v
+++ b/techlibs/common/stdcells.v
@@ -100,7 +100,7 @@ output [Y_WIDTH-1:0] Y;
.B_WIDTH(A_WIDTH),
.Y_WIDTH(Y_WIDTH)
) sub (
- .A(0),
+ .A(1'b0),
.B(A),
.Y(Y)
);
@@ -393,7 +393,7 @@ endmodule
// --------------------------------------------------------
-module \$shift (X, A, Y);
+module \$__shift (X, A, Y);
parameter WIDTH = 1;
parameter SHIFT = 0;
@@ -450,7 +450,7 @@ generate
wire [WIDTH-1:0] unshifted, shifted, result;
assign unshifted = chain[WIDTH*i + WIDTH-1 : WIDTH*i];
assign chain[WIDTH*(i+1) + WIDTH-1 : WIDTH*(i+1)] = result;
- \$shift #(
+ \$__shift #(
.WIDTH(WIDTH),
.SHIFT(0 - (2 ** (i > 30 ? 30 : i)))
) sh (
@@ -503,7 +503,7 @@ generate
wire [WIDTH-1:0] unshifted, shifted, result;
assign unshifted = chain[WIDTH*i + WIDTH-1 : WIDTH*i];
assign chain[WIDTH*(i+1) + WIDTH-1 : WIDTH*(i+1)] = result;
- \$shift #(
+ \$__shift #(
.WIDTH(WIDTH),
.SHIFT(2 ** (i > 30 ? 30 : i))
) sh (
@@ -556,7 +556,7 @@ generate
wire [WIDTH-1:0] unshifted, shifted, result;
assign unshifted = chain[WIDTH*i + WIDTH-1 : WIDTH*i];
assign chain[WIDTH*(i+1) + WIDTH-1 : WIDTH*(i+1)] = result;
- \$shift #(
+ \$__shift #(
.WIDTH(WIDTH),
.SHIFT(0 - (2 ** (i > 30 ? 30 : i)))
) sh (
@@ -618,7 +618,7 @@ generate
wire [WIDTH-1:0] unshifted, shifted, result;
assign unshifted = chain[WIDTH*i + WIDTH-1 : WIDTH*i];
assign chain[WIDTH*(i+1) + WIDTH-1 : WIDTH*(i+1)] = result;
- \$shift #(
+ \$__shift #(
.WIDTH(WIDTH),
.SHIFT(2 ** (i > 30 ? 30 : i))
) sh (
@@ -641,7 +641,7 @@ endmodule
// --------------------------------------------------------
-module \$fulladd (A, B, C, X, Y);
+module \$__fulladd (A, B, C, X, Y);
// {X, Y} = A + B + C
input A, B, C;
@@ -661,7 +661,7 @@ endmodule
// --------------------------------------------------------
-module \$alu (A, B, Cin, Y, Cout, Csign);
+module \$__alu (A, B, Cin, Y, Cout, Csign);
parameter WIDTH = 1;
@@ -679,7 +679,7 @@ assign Csign = carry[WIDTH-1];
genvar i;
generate
for (i = 0; i < WIDTH; i = i + 1) begin:V
- \$fulladd adder (
+ \$__fulladd adder (
.A(A[i]),
.B(B[i]),
.C(carry[i]),
@@ -712,7 +712,7 @@ wire [WIDTH-1:0] A_buf, B_buf, Y_buf;
\$pos #(.A_SIGNED(A_SIGNED && B_SIGNED), .A_WIDTH(A_WIDTH), .Y_WIDTH(WIDTH)) A_conv (.A(A), .Y(A_buf));
\$pos #(.A_SIGNED(A_SIGNED && B_SIGNED), .A_WIDTH(B_WIDTH), .Y_WIDTH(WIDTH)) B_conv (.A(B), .Y(B_buf));
-\$alu #(
+\$__alu #(
.WIDTH(WIDTH)
) alu (
.A(A_buf),
@@ -761,7 +761,7 @@ wire [WIDTH-1:0] A_buf, B_buf, Y_buf;
\$pos #(.A_SIGNED(A_SIGNED && B_SIGNED), .A_WIDTH(A_WIDTH), .Y_WIDTH(WIDTH)) A_conv (.A(A), .Y(A_buf));
\$pos #(.A_SIGNED(A_SIGNED && B_SIGNED), .A_WIDTH(B_WIDTH), .Y_WIDTH(WIDTH)) B_conv (.A(B), .Y(B_buf));
-\$alu #(
+\$__alu #(
.WIDTH(WIDTH)
) alu (
.A(A_buf),
@@ -857,19 +857,14 @@ output [Y_WIDTH-1:0] Y;
.A_SIGNED(B_SIGNED),
.B_SIGNED(A_SIGNED),
.A_WIDTH(B_WIDTH),
- .B_WIDTH(A_WIDTH)
+ .B_WIDTH(A_WIDTH),
+ .Y_WIDTH(Y_WIDTH)
) ge_via_le (
.A(B),
.B(A),
- .Y(Y[0])
+ .Y(Y)
);
-generate
- if (Y_WIDTH > 1) begin:V
- assign Y[Y_WIDTH-1:1] = 0;
- end
-endgenerate
-
endmodule
// --------------------------------------------------------
@@ -890,19 +885,14 @@ output [Y_WIDTH-1:0] Y;
.A_SIGNED(B_SIGNED),
.B_SIGNED(A_SIGNED),
.A_WIDTH(B_WIDTH),
- .B_WIDTH(A_WIDTH)
+ .B_WIDTH(A_WIDTH),
+ .Y_WIDTH(Y_WIDTH)
) gt_via_lt (
.A(B),
.B(A),
- .Y(Y[0])
+ .Y(Y)
);
-generate
- if (Y_WIDTH > 1) begin:V
- assign Y[Y_WIDTH-1:1] = 0;
- end
-endgenerate
-
endmodule
// --------------------------------------------------------
@@ -923,7 +913,7 @@ wire [Y_WIDTH-1:0] A_buf, B_buf;
\$pos #(.A_SIGNED(A_SIGNED && B_SIGNED), .A_WIDTH(A_WIDTH), .Y_WIDTH(Y_WIDTH)) A_conv (.A(A), .Y(A_buf));
\$pos #(.A_SIGNED(A_SIGNED && B_SIGNED), .A_WIDTH(B_WIDTH), .Y_WIDTH(Y_WIDTH)) B_conv (.A(B), .Y(B_buf));
-\$alu #(
+\$__alu #(
.WIDTH(Y_WIDTH)
) alu (
.A(A_buf),
@@ -952,7 +942,7 @@ wire [Y_WIDTH-1:0] A_buf, B_buf;
\$pos #(.A_SIGNED(A_SIGNED && B_SIGNED), .A_WIDTH(A_WIDTH), .Y_WIDTH(Y_WIDTH)) A_conv (.A(A), .Y(A_buf));
\$pos #(.A_SIGNED(A_SIGNED && B_SIGNED), .A_WIDTH(B_WIDTH), .Y_WIDTH(Y_WIDTH)) B_conv (.A(B), .Y(B_buf));
-\$alu #(
+\$__alu #(
.WIDTH(Y_WIDTH)
) alu (
.A(A_buf),
@@ -965,7 +955,7 @@ endmodule
// --------------------------------------------------------
-module \$arraymul (A, B, Y);
+module \$__arraymul (A, B, Y);
parameter WIDTH = 8;
input [WIDTH-1:0] A, B;
@@ -1001,7 +991,7 @@ wire [Y_WIDTH-1:0] A_buf, B_buf;
\$pos #(.A_SIGNED(A_SIGNED && B_SIGNED), .A_WIDTH(A_WIDTH), .Y_WIDTH(Y_WIDTH)) A_conv (.A(A), .Y(A_buf));
\$pos #(.A_SIGNED(A_SIGNED && B_SIGNED), .A_WIDTH(B_WIDTH), .Y_WIDTH(Y_WIDTH)) B_conv (.A(B), .Y(B_buf));
-\$arraymul #(
+\$__arraymul #(
.WIDTH(Y_WIDTH)
) arraymul (
.A(A_buf),
@@ -1013,7 +1003,7 @@ endmodule
// --------------------------------------------------------
-module \$div_mod_u (A, B, Y, R);
+module \$__div_mod_u (A, B, Y, R);
parameter WIDTH = 1;
@@ -1043,7 +1033,7 @@ endmodule
// --------------------------------------------------------
-module \$div_mod (A, B, Y, R);
+module \$__div_mod (A, B, Y, R);
parameter A_SIGNED = 0;
parameter B_SIGNED = 0;
@@ -1067,7 +1057,7 @@ wire [WIDTH-1:0] A_buf_u, B_buf_u, Y_u, R_u;
assign A_buf_u = A_SIGNED && B_SIGNED && A_buf[WIDTH-1] ? -A_buf : A_buf;
assign B_buf_u = A_SIGNED && B_SIGNED && B_buf[WIDTH-1] ? -B_buf : B_buf;
-\$div_mod_u #(
+\$__div_mod_u #(
.WIDTH(WIDTH)
) div_mod_u (
.A(A_buf_u),
@@ -1098,7 +1088,7 @@ output [Y_WIDTH-1:0] Y;
wire [Y_WIDTH-1:0] Y_buf;
wire [Y_WIDTH-1:0] Y_div_zero;
-\$div_mod #(
+\$__div_mod #(
.A_SIGNED(A_SIGNED),
.B_SIGNED(B_SIGNED),
.A_WIDTH(A_WIDTH),
@@ -1140,7 +1130,7 @@ output [Y_WIDTH-1:0] Y;
wire [Y_WIDTH-1:0] Y_buf;
wire [Y_WIDTH-1:0] Y_div_zero;
-\$div_mod #(
+\$__div_mod #(
.A_SIGNED(A_SIGNED),
.B_SIGNED(B_SIGNED),
.A_WIDTH(A_WIDTH),
@@ -1204,7 +1194,8 @@ wire A_buf;
\$reduce_bool #(
.A_SIGNED(A_SIGNED),
- .A_WIDTH(A_WIDTH)
+ .A_WIDTH(A_WIDTH),
+ .Y_WIDTH(1)
) A_logic (
.A(A),
.Y(A_buf)
@@ -1241,7 +1232,8 @@ wire A_buf, B_buf;
\$reduce_bool #(
.A_SIGNED(A_SIGNED),
- .A_WIDTH(A_WIDTH)
+ .A_WIDTH(A_WIDTH),
+ .Y_WIDTH(1)
) A_logic (
.A(A),
.Y(A_buf)
@@ -1249,7 +1241,8 @@ wire A_buf, B_buf;
\$reduce_bool #(
.A_SIGNED(B_SIGNED),
- .A_WIDTH(B_WIDTH)
+ .A_WIDTH(B_WIDTH),
+ .Y_WIDTH(1)
) B_logic (
.A(B),
.Y(B_buf)
@@ -1287,7 +1280,8 @@ wire A_buf, B_buf;
\$reduce_bool #(
.A_SIGNED(A_SIGNED),
- .A_WIDTH(A_WIDTH)
+ .A_WIDTH(A_WIDTH),
+ .Y_WIDTH(1)
) A_logic (
.A(A),
.Y(A_buf)
@@ -1295,7 +1289,8 @@ wire A_buf, B_buf;
\$reduce_bool #(
.A_SIGNED(B_SIGNED),
- .A_WIDTH(B_WIDTH)
+ .A_WIDTH(B_WIDTH),
+ .Y_WIDTH(1)
) B_logic (
.A(B),
.Y(B_buf)
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 01:24:46 +0000