From: Michael Gernoth <michael@gernoth.net>
Date: Thu, 1 May 2008 12:48:09 +0000 (+0200)
Subject: change timing for rom access
X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/fpga-games/commitdiff_plain/3f141b4135f7b5710b988f5fc204b24301240d2b

change timing for rom access
---

diff --git a/galaxian/src/mc_top.v b/galaxian/src/mc_top.v
index 360a2f4..08d25de 100644
--- a/galaxian/src/mc_top.v
+++ b/galaxian/src/mc_top.v
@@ -443,38 +443,34 @@ begin
    seq <= (~clk_d[1] & clk_d[0]) ? 0 : seq+1;
    case(seq)
       0:begin
-        //sound
         ROM_A <= W_WAV_A0;
         W_CPU_ROM_DO <= ROM_D;
         end
       2:begin
-        //sound
         ROM_A <= W_WAV_A1;
         W_WAV_D0 <= ROM_D;
         end
       4:begin
-        //sound
         ROM_A <= {3'h0,W_A[15:0]};
         W_WAV_D1 <= ROM_D;
         end
       6:begin
-        //sound
         ROM_A <= W_WAV_A2;
         W_CPU_ROM_DO <= ROM_D;
         end
-      8:W_WAV_D2 <= ROM_D; //sound
+      8:W_WAV_D2 <= ROM_D;
      10:ROM_A <= {3'h0,W_A[15:0]};
      12:W_CPU_ROM_DO <= ROM_D;
-     16:ROM_A <= {3'h0,W_A[15:0]};
-     18:begin
+     14:ROM_A <= {3'h0,W_A[15:0]};
+     16:begin
         ROM_A <= {3'h0,4'h4,1'b0,W_OBJ_ROM_A};
         W_CPU_ROM_DO <= ROM_D;
         end
-     20:begin
+     18:begin
         ROM_A <= {3'h0,4'h5,1'b0,W_OBJ_ROM_A};
         W_OBJ_ROM_A_D <= ROM_D;
         end
-     22:begin
+     20:begin
         ROM_A <= {3'h0,W_A[15:0]};
         W_OBJ_ROM_B_D <= ROM_D;
         end
diff --git a/galaxian/src/roms.v b/galaxian/src/roms.v
index 4fcf362..8498a35 100644
--- a/galaxian/src/roms.v
+++ b/galaxian/src/roms.v
@@ -76,7 +76,6 @@ GALAXIAN_1H H_ROM(
 );
 
 reg [7:0]DATA_OUT;
-reg [7:0]DATA_OUT2;
 
 //    address map
 //--------------------------------------------------