Added mapper #38

2 files changed, 13 insertions, 3 deletions

diff --git a/CoolGirl.v b/CoolGirl.v
index 9338c34..c070b00 100644
--- a/CoolGirl.v
+++ b/CoolGirl.v
@@ -16,6 +16,7 @@ module CoolGirl # (
       parameter USE_MAPPER_048_INTERRUPTS = 0,  // mapper #048 interrupts

       parameter USE_MAPPER_034_241_BxROM = 1,   // mappers #034 & #241 - BxROM: Deadly Towers (Mashou), Darkseed

       parameter USE_MAPPER_036 = 0,             // mapper #036 - TXC's PCB 01-22000-400

+      parameter USE_MAPPER_038 = 0,             // mapper #038: Crime Busters

       parameter USE_MAPPER_042 = 1,             // mapper #042 - FDS conversions

       parameter USE_MAPPER_042_INTERRUPTS = 0,  // mapper #042 interrupts: for Mario Baby only

       parameter USE_MAPPER_065 = 1,             // mapper #065 - Irem's H3001

diff --git a/mappers.vh b/mappers.vh
index 1939f1d..3b0de73 100644
--- a/mappers.vh
+++ b/mappers.vh
@@ -240,7 +240,7 @@
       begin

          reg carry;

          // Cycle mode without prescaler is not used by any games? It's missed in fceux source code.

-			/*

+         /*

          if (vrc4_irq_cpu_control[2]) // cycle mode

          begin

             {carry, vrc4_irq_cpu_value[7:0]} = vrc4_irq_cpu_value[7:0] + 1'b1; // just count IRQ value

@@ -250,8 +250,8 @@
                vrc4_irq_cpu_value[7:0] = vrc4_irq_cpu_latch[7:0];

             end

          end else

-			*/

-			begin // scanline mode

+         */

+         begin // scanline mode

             vrc4_irq_prescaler = vrc4_irq_prescaler + 1'b1; // count prescaler

             if ((vrc4_irq_prescaler_counter[1] == 0 && vrc4_irq_prescaler == 114) || (vrc4_irq_prescaler_counter[1] == 1 && vrc4_irq_prescaler == 113)) // 114, 114, 113

             begin

@@ -524,6 +524,15 @@
                   chr_bank_e[4:2] = {1'b1, cpu_data_in[5:4]};

                end

             end

+            

+            if (USE_MAPPER_038 && (mapper == 6'b100000))

+            begin

+               if (cpu_addr_in[14:12] == 3'b111)

+               begin

+                  prg_bank_a[3:2] = cpu_data_in[1:0];

+                  chr_bank_a[4:3] = cpu_data_in[3:2];

+               end

+            end            

 

             // temp/test

             /*