AxROM/BxROM fix

2 files changed, 4 insertions, 9 deletions

diff --git a/CoolGirl.v b/CoolGirl.v
index e5ee73e..93edb35 100644
--- a/CoolGirl.v
+++ b/CoolGirl.v
@@ -38,8 +38,7 @@ module CoolGirl # (
       

       parameter USE_FOUR_SCREEN = 1,            // Enable four-screen support, required by some games

       parameter UxROM_BITSIZE = 4,              // Maximum size for UxROM PRG (3=256KB - standard size, 4=512KB - required for some hacks/homebrew)

-      parameter AxROM_BITSIZE = 3,              // Maximum size for AxROM PRG (3=256KB - standard size, 4=512KB - required for some hacks/homebrew)

-		parameter BxROM_BITSIZE = 3,              // Maximum size for BxROM PRG (1=128KB - standard size, 3=512KB - required for some hacks/homebrew)

+      parameter AxROM_BxROM_BITSIZE = 3,        // Maximum size for AxROM/BxROM PRG (2=256KB - standard size, 3=512KB - required for some hacks/homebrew)

       parameter MMC3_BITSIZE = 8                // Maximum size for MMC3 PRG (6=512KB - standard size, 8=2MB - required for some hacks/homebrew)

    )

    (

diff --git a/mappers.vh b/mappers.vh
index b6a722b..ff7fea7 100644
--- a/mappers.vh
+++ b/mappers.vh
@@ -549,7 +549,9 @@
             // Mapper #7 - AxROM

             if (mapper == 5'b01000)

             begin

-               prg_bank_a[AxROM_BITSIZE+2:2] = cpu_data_in[AxROM_BITSIZE:0];

+               prg_bank_a[AxROM_BxROM_BITSIZE+2:2] = cpu_data_in[AxROM_BxROM_BITSIZE:0];

+					if (!USE_MAPPER_034_241_BxROM || !flags[0]) // BxROM?

+						mirroring = {1'b1, cpu_data_in[4]};

             end

             

             // Mapper #228 - Cheetahmen II            

@@ -1012,12 +1014,6 @@
                endcase

             end

 

-            // Mapper #34 - BxROM

-            if (USE_MAPPER_034_241_BxROM && mapper == 5'b11110)

-            begin

-               prg_bank_a[BxROM_BITSIZE+2:2] = cpu_data_in[BxROM_BITSIZE:0];

-            end

-

             // Mapper #36

             if (USE_MAPPER_036 && mapper == 5'b11101)

             begin