1 files changed, 1 insertions, 1 deletions

diff --git a/hdl/top.sv b/hdl/top.sv
index d224561..35279d4 100644
--- a/hdl/top.sv
+++ b/hdl/top.sv
@@ -165,7 +165,7 @@ always_ff @(posedge clk) begin
                 case (opcode)
                     'h1: begin
                         if (`mem_read_valid) begin
-                            acc = `mem_read_data;
+                            acc = acc + `mem_read_data;
                         end else begin
                             state = MEMORY;
                         end