From 84da646ac998de7d257d194718689d0b52e9df7b Mon Sep 17 00:00:00 2001
From: nsx0r <nnssxx@gmail.com>
Date: Wed, 19 Oct 2022 14:43:42 +0200
Subject: [PATCH] added NES mapper 62

added NES mapper 62, tested working with a multicart using K-1017P PCB
also expanded max PRG size for these big multicarts
---
 Cart_Reader/NES.ino | 27 ++++++++++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

diff --git a/Cart_Reader/NES.ino b/Cart_Reader/NES.ino
index eeaae29..6cef359 100644
--- a/Cart_Reader/NES.ino
+++ b/Cart_Reader/NES.ino
@@ -59,6 +59,7 @@ static const byte PROGMEM mapsize[] = {
   45, 3, 6, 0, 8, 0, 0,  // ga23c asic multicart [UNLICENSED]
   47, 4, 4, 6, 6, 0, 0,  // (super spike vball + world cup)
   48, 3, 4, 6, 6, 0, 0,  // taito tc0690
+  62, 7, 7, 8, 8, 0, 0, // K-1017P [UNLICENSED]
   64, 2, 3, 4, 5, 0, 0,  // tengen rambo-1 [UNLICENSED]
   65, 3, 4, 5, 6, 0, 0,  // irem h-3001
   66, 2, 3, 2, 3, 0, 0,  // gxrom/mhrom
@@ -148,9 +149,9 @@ byte mapcount = (sizeof(mapsize) / sizeof(mapsize[0])) / 7;
 boolean mapfound = false;
 byte mapselect;
 
-int PRG[] = { 16, 32, 64, 128, 256, 512, 1024 };
+int PRG[] = { 16, 32, 64, 128, 256, 512, 1024, 2048 };
 byte prglo = 0;  // Lowest Entry
-byte prghi = 6;  // Highest Entry
+byte prghi = 7;  // Highest Entry
 
 int CHR[] = { 0, 8, 16, 32, 64, 128, 256, 512, 1024 };
 byte chrlo = 0;  // Lowest Entry
@@ -3219,7 +3220,17 @@ void readPRG(boolean readrom) {
           dumpPRG(base, address);
         }
         break;
-
+      
+      case 62:
+        banks = int_pow(2, prgsize) / 2;
+        for (int i = 0; i < banks; i++) {
+          write_prg_byte(0x8000 + (i * 512) + ((i & 32) << 1), 0x00);
+          for (word address = 0x0; address < 0x8000; address += 512) {
+            dumpPRG(base, address);
+          }
+        }
+        break;
+        
       case 66:  // 64K/128K
         banks = int_pow(2, prgsize) / 2;
         for (int i = 0; i < banks; i++) {                               // 64K/128K
@@ -3817,6 +3828,16 @@ void readCHR(boolean readrom) {
             }
           }
           break;
+          
+        case 62:
+          banks = int_pow(2, chrsize) / 2;
+          for (int i = 0; i < banks; i++) {
+            write_prg_byte(0x8000 + (i / 4), i & 3);
+            for (word address = 0x0; address < 0x2000; address += 512) {
+              dumpCHR(address);
+            }
+          }
+        break;
 
         case 67:  // 128K
           banks = int_pow(2, chrsize) * 2;