Add nandgame computer

1 files changed, 74 insertions, 0 deletions

diff --git a/nandgame/computer.sv b/nandgame/computer.sv
new file mode 100644
index 0000000..acb9bbd
--- /dev/null
+++ b/nandgame/computer.sv
@@ -0,0 +1,74 @@
+`timescale 1us/1us
+
+`include "../my_mem.v"
+`include "comb_mem.sv"
+`include "instruction_decode.sv"
+`include "counter.sv"
+
+module computer (
+  input clk_i
+);
+
+wire nclk;
+assign nclk = ~clk_i;
+
+logic [15:0] PC_addr;
+logic [15:0] PC_content;
+
+my_mem #(
+  .DATA_WIDTH(16)
+) ROM (
+  .clk_i(nclk),
+  .write_en_i(0),
+  .read_en_i(1),
+  .r_read_addr(PC_addr),
+  .r_write_addr(0),
+  .data_i(0),
+  .data_o(PC_content)
+);
+
+logic [15:0] out_A, out_D, out_pA;
+logic in_store_A, in_store_D, in_store_pA;
+logic [15:0] CPU_RES;
+
+comb_mem #(
+  .DATA_WIDTH(16)
+) RAM (
+  .cl(clk_i),
+
+  .A_o(out_A),
+  .D_o(out_D),
+  .pA_o(out_pA),
+
+  .a_i(in_store_A),
+  .d_i(in_store_D),
+  .pa_i(in_store_pA),
+
+  .X(CPU_RES)
+);
+
+logic cpu_jump;
+
+instruction_decode CPU (
+  .instruction(PC_content),
+  .do_jump(cpu_jump),
+
+  .dst_a(in_store_A),
+  .dst_d(in_store_D),
+  .dst_pa(in_store_pA),
+
+  .A_i(out_A),
+  .D_i(out_D),
+  .pA_i(out_pA),
+
+  .RES(CPU_RES)
+);
+
+counter PC (
+  .cl(clk_i),
+  .count(PC_addr),
+  .X(out_A),
+  .st(cpu_jump)
+);
+
+endmodule