Mappers: Add mapper 40 MAPPER_SMS_Korean_MSX_SMS_8000 for "Zemina Bes…

…t 25/39/88 (KR)" (#104)

meka/compat.txt

@@ -665,14 +665,17 @@
  Zaxxon 3-D / Zaxxon 3D                         FM,(3D) Ok
  Zaxxon 3-D / Zaxxon 3D [Proto]                 (3D)    Ok
  Zemina 4-in-1 (Q-Bert, Sports 3, Gulkave..)(KR)-      *Ok
+ Zemina Best 25 (KR)                            -      *Ok
+ Zemina Best 39 (KR)                            -      *Ok
+ Zemina Best 88 (KR)                            -      *Ok
  Zillion [v0] / Akai Koudan Zillion             -       Ok
  Zillion [v1]                                   -       Ok
  Zillion [v2]                                   -       Ok
  Zillion II: The Tri Formation / Tri Formation  FM      Ok
  Zillion II: The Tri Formation [Proto]          FM      Ok
  Zool                                           -       Ok
 -----------------------------------------------------------------------------
- 651 games tested - 647 are "Ok"
+ 654 games tested - 650 are "Ok"
 -----------------------------------------------------------------------------
 
 -----------------------------------------------------------------------------

meka/meka.nam

@@ -52,6 +52,7 @@
 ;  25 : sms korean xx-in-1, register at 0xFFF5, 0xFFFE, 0xFFFE (used in MD multicart with SMS games)
 ;  26 : sms korean xx-in-1, register at 0xFFFA, 0xFFFE, 0xFFFE (used in MD multicart with SMS games)
 ;  27 : sms korean xx-in-1, register at 0x2000
+;  40 : sms korean xx-in-1, register at 0x8000
 ;-----------------------------------------------------------------------------
 
 ;-----------------------------------------------------------------------------
@@ -762,6 +763,9 @@ SMS e8b82066 06806D7C60FB9C9A   Y's: The Vanished Omens [Demo]/COUNTRY=US/FLAGS=
 SMS a3ef13cb 73E4CCD0CC1A69BE   Zaxxon 3-D/NAME_JP=Zaxxon 3D/COUNTRY=JP,US,EU,BR/EMU_3D/PRODUCT_NO=G-1336,8002/COMMENT=The 3-D effect can be removed by pressing Pause on title screen. It works only on non-Japanese systems.
 SMS bba74147 2D689EA985B828BF   Zaxxon 3-D [Proto]/NAME_JP=Zaxxon 3D/FLAGS=PROTO/EMU_3D/COMMENT=Unfinished prototype version of the game.
 SMS 7cd51467 488D49FF0599CE77   Zemina 4-in-1 (Q-Bert, Sports 3, Gulkave, Pooyan)/COUNTRY=KR/EMU_MAPPER=23
+SMS e6c9c046 F4E9FC49C3C374E4   Zemina Best 25/COUNTRY=KR/EMU_MAPPER=40/COMMENT=This is the second 512KB of Zemina Best 88. Evidence of a physical release exist.
+SMS d8169fe2 BF9411BD7824093A   Zemina Best 39/COUNTRY=KR/EMU_MAPPER=40/COMMENT=This is the first 512KB of Zemina Best 88. No evidence yet of a physical release.
+SMS 3c339d9e B37D0D063BE77D1E   Zemina Best 88/COUNTRY=KR/EMU_MAPPER=40
 SMS 60c19645 39A919D7DA6933B8   Zillion [v0]/NAME_JP=Akai Koudan Zillion/COUNTRY=JP,EU/PRODUCT_NO=G-1325,5075
 SMS 5718762c 88E69FBAA2DA4974   Zillion [v1]/COUNTRY=US/PRODUCT_NO=5075     ; [EDITOR NOTE] Country listing for all 3 versions are based on what we found so far. It's probable that v1 and v2 were released in both US and EU.
 SMS 7ba54510 8AE29FB6A2DC4B76   Zillion [v2]/COUNTRY=EU/PRODUCT_NO=5075

meka/srcs/machine.cpp

@@ -196,6 +196,9 @@ void    Machine_Set_Handler_MemRW(void)
     case MAPPER_SMS_Korean_MSX_32KB_2000:
         WrZ80 = WrZ80_NoHook = Write_Mapper_SMS_Korean_MSX_32KB_2000;
         break;
+    case MAPPER_SMS_Korean_MSX_SMS_8000:
+        WrZ80 = WrZ80_NoHook = Write_Mapper_SMS_Korean_MSX_SMS_8000;
+        break;
     }
 }
 
@@ -485,6 +488,20 @@ void    Machine_Set_Mapping (void)
         g_machine.mapper_regs[0] = 0;
         break;
 
+    case MAPPER_SMS_Korean_MSX_SMS_8000:
+        Map_8k_ROM(0, 0x3c & tsms.Pages_Mask_8k);
+        Map_8k_ROM(1, 0x3c & tsms.Pages_Mask_8k);
+        Map_8k_ROM(2, 1 & tsms.Pages_Mask_8k);
+        Map_8k_ROM(3, 0 & tsms.Pages_Mask_8k);
+        Map_8k_ROM(4, 3 & tsms.Pages_Mask_8k);
+        Map_8k_ROM(5, 2 & tsms.Pages_Mask_8k);
+        Map_8k_RAM(6, 0);
+        Map_8k_RAM(7, 0);
+        g_machine.mapper_regs_count = 1;
+        for (int i = 0; i != MAPPER_REGS_MAX; i++)
+            g_machine.mapper_regs[i] = 0;
+        break;
+
     case MAPPER_SC3000_Survivors_Multicart:
         g_machine.mapper_regs_count = 1;
         for (int i = 0; i != MAPPER_REGS_MAX; i++)

meka/srcs/mappers.cpp

@@ -952,6 +952,43 @@ WRITE_FUNC (Write_Mapper_SMS_Korean_MSX_32KB_2000)
     Write_Error (Addr, Value);
 }
 
+// Mapper #40
+// Zemina Best 88 (KR)
+// Zemina Best 25 (KR)
+// Zemina Best 39 (KR)
+WRITE_FUNC (Write_Mapper_SMS_Korean_MSX_SMS_8000)
+{
+    if (Addr == 0x8000) // Configurable segment -----------------------------------------------
+    {
+        // Special case to support Zemina Best 25 [Best 88] (KR)
+        if (g_machine.mapper_regs[0] == 0xFF) {
+            Value ^= 0x22;
+        }
+        g_machine.mapper_regs[0] = Value;
+        if (Value & 0x80) {
+            Map_8k_ROM(0, (Value ^ 3) & tsms.Pages_Mask_8k);
+            Map_8k_ROM(1, (Value ^ 2) & tsms.Pages_Mask_8k);
+        } else {
+            Map_8k_ROM(0, 0x3c & tsms.Pages_Mask_8k);
+            Map_8k_ROM(1, 0x3c & tsms.Pages_Mask_8k);
+        }
+        Map_8k_ROM(2, (Value ^ 1) & tsms.Pages_Mask_8k);
+        Map_8k_ROM(3, (Value ^ 0) & tsms.Pages_Mask_8k);
+        Map_8k_ROM(4, (Value ^ 3) & tsms.Pages_Mask_8k);
+        Map_8k_ROM(5, (Value ^ 2) & tsms.Pages_Mask_8k);
+        return;
+    }
+
+    switch (Addr >> 13)
+    {
+        // RAM [0xC000] = [0xE000] ------------------------------------------------
+    case 6: Mem_Pages[6][Addr] = Value; return;
+    case 7: Mem_Pages[7][Addr] = Value; return;
+    }
+
+    Write_Error (Addr, Value);
+}
+
 // Based on MSX ASCII 8KB mapper? http://bifi.msxnet.org/msxnet/tech/megaroms.html#ascii8
 // - This mapper requires 4 registers to save bank switching state.
 //   However, all other mappers so far used only 3 registers, stored as 3 bytes.

meka/srcs/mappers.h

@@ -50,6 +50,7 @@
 #define MAPPER_SMS_Korean_MD_FFF5               (25)        // Registers at 0xFFF5 and 0xFFFF (Jaemiissneun Game Mo-eumjip 42/65 Hap [SMS-MD], Pigu Wang Hap ~ Jaemiiss-neun Game Mo-eumjip [SMS-MD])
 #define MAPPER_SMS_Korean_MD_FFFA               (26)        // Registers at 0xFFFA and 0xFFFF (Game Jiphap 30 Hap [SMS-MD])
 #define MAPPER_SMS_Korean_MSX_32KB_2000         (27)        // Register at 0x2000 (2 Hap in 1 (Moai-ui bomul, David-2))
+#define MAPPER_SMS_Korean_MSX_SMS_8000          (40)        // Register at 0x8000 with 8KB granularity and both MSX and SMS game support (Zemina Best 88 [MISSING 64K])
 
 #define READ_FUNC(_NAME)   u8 _NAME(register u16 Addr)
 #define WRITE_FUNC(_NAME)  void _NAME(register u16 Addr, register u8 Value)
@@ -96,6 +97,7 @@ WRITE_FUNC (Write_Mapper_SMS_Korean_MD_FFF0);
 WRITE_FUNC (Write_Mapper_SMS_Korean_MD_FFF5);
 WRITE_FUNC (Write_Mapper_SMS_Korean_MD_FFFA);
 WRITE_FUNC (Write_Mapper_SMS_Korean_MSX_32KB_2000);
+WRITE_FUNC (Write_Mapper_SMS_Korean_MSX_SMS_8000);
 //-----------------------------------------------------------------------------
 void Out_SC3000_SurvivorsMulticarts_DataWrite(u8 v);
 

meka/srcs/saves.cpp

@@ -144,6 +144,10 @@ void        Load_Game_Fixup(void)
         case MAPPER_SMS_Korean_MSX_32KB_2000:
             WrZ80_NoHook(0x2000, g_machine.mapper_regs[0]);
             break;
+        case MAPPER_SMS_Korean_MSX_SMS_8000:
+            WrZ80_NoHook(0x8000, 0x00); // reset the mapper to avoid the 0xFF special case
+            WrZ80_NoHook(0x8000, g_machine.mapper_regs[0]);
+            break;
         }
     }
 
@@ -339,6 +343,7 @@ int     Save_Game_MSV(FILE *f)
     case MAPPER_SMS_Korean_MD_FFF5:
     case MAPPER_SMS_Korean_MD_FFFA:
     case MAPPER_SMS_Korean_MSX_32KB_2000:
+    case MAPPER_SMS_Korean_MSX_SMS_8000:
     default:
         fwrite (RAM, 0x2000, 1, f); // Do not use g_driver->ram because of g_driver video mode change
         break;
@@ -518,6 +523,7 @@ int         Load_Game_MSV(FILE *f)
     case MAPPER_SMS_Korean_MD_FFF5:
     case MAPPER_SMS_Korean_MD_FFFA:
     case MAPPER_SMS_Korean_MSX_32KB_2000:
+    case MAPPER_SMS_Korean_MSX_SMS_8000:
     default:
         fread (RAM, 0x2000, 1, f); // Do not use g_driver->ram because of g_driver video mode change
         break;