summaryrefslogtreecommitdiff
path: root/rtl/core/alu/add.sv
diff options
context:
space:
mode:
authorAlejandro Soto <alejandro@34project.org>2024-01-21 06:23:46 -0600
committerAlejandro Soto <alejandro@34project.org>2024-02-20 11:11:17 -0600
commitf3b18ead59ae02f95dabbf0a1dea40873a816975 (patch)
tree8979e50f2a37f66a4cd27e937b480efe60d72cf7 /rtl/core/alu/add.sv
parenta8bc5a353ea997f73209b39377ee15a73e471237 (diff)
rtl: refactor filenames and directory hierarchy
Diffstat (limited to 'rtl/core/alu/add.sv')
-rw-r--r--rtl/core/alu/add.sv45
1 files changed, 0 insertions, 45 deletions
diff --git a/rtl/core/alu/add.sv b/rtl/core/alu/add.sv
deleted file mode 100644
index a15a6b6..0000000
--- a/rtl/core/alu/add.sv
+++ /dev/null
@@ -1,45 +0,0 @@
-module core_alu_add
-#
-(
- parameter W=16,
- parameter SUB=0
-)
-(
- input logic[W - 1:0] a,
- b,
- input logic c_in,
-
- output logic[W - 1:0] q,
- output logic c,
- v
-);
-
- logic sgn_a, sgn_b, sgn_q, maybe_v;
- logic[W:0] out;
-
- /* Quartus infiere dos sumadores si se zero-extendea el cin
- * para complacer a Verilator, lo cual es malo para Fmax.
- */
-`ifdef VERILATOR
- logic[W:0] ext_carry;
- assign ext_carry = {{W{1'b0}}, c_in};
-`else
- logic ext_carry;
- assign ext_carry = c_in;
-`endif
-
- assign v = maybe_v & (sgn_a ^ sgn_q);
- assign {c, q} = out;
- assign {sgn_a, sgn_b, sgn_q} = {a[W - 1], b[W - 1], q[W - 1]};
-
- generate
- if(SUB) begin
- assign out = {1'b1, a} - {1'b0, b} - ext_carry;
- assign maybe_v = sgn_a ^ sgn_b;
- end else begin
- assign out = {1'b0, a} + {1'b0, b} + ext_carry;
- assign maybe_v = sgn_a ~^ sgn_b;
- end
- endgenerate
-
-endmodule