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Add mapper #43 MAPPER_GG_Super_9_in_1_FFFE_FFF7_FFFF for "Super Game Gear 9 in 1 [Sonic II] (Unl)" #107

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Add mapper #43 MAPPER_GG_Super_9_in_1_FFFE_FFF7_FFFF for "Super Game Gear 9 in 1 [Sonic II] (Unl)" #107

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3 changes: 2 additions & 1 deletion meka/compat.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -1408,6 +1408,7 @@
Super Battletank Ok
Super Columns Ok
Super Columns (JP) Ok
Super Game Gear 9 in 1 [Sonic II] *Ok
Super Golf (JP) Ok
Super Kick Off [SMS-GG] Ok
Superman - The Man of Steel Ok
Expand Down Expand Up @@ -1498,7 +1499,7 @@
Zoop (US) Ok
Zoop [Proto] (US) Ok
-----------------------------------------------------------------------------
517 games tested - 506 are "Ok" - Compatibility rate: 97.63%
518 games tested - 507 are "Ok" - Compatibility rate: 97.88%
-----------------------------------------------------------------------------

-----------------------------------------------------------------------------
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1 change: 1 addition & 0 deletions meka/meka.nam
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Expand Up @@ -1291,6 +1291,7 @@ GG b421c057 96BD12C62621B8D6 Striker/COUNTRY=EU/PRODUCT_NO=2551-50
GG 73d6745a 18CC99C9849C9901 Super Battletank/COUNTRY=US/PRODUCT_NO=1239
GG 8ba43af3 DAA4C785B7042952 Super Columns/COUNTRY=US,EU/PRODUCT_NO=2449,2449-50
GG 2a100717 E7260408CEC8EE63 Super Columns/COUNTRY=JP/PRODUCT_NO=G-3226
GG 7cc51c51 6727345FC46B6C44 Super Game Gear 9 in 1 [Sonic II]/EMU_MAPPER=43
GG 528cbbce FAE75543A7740E5E Super Golf/COUNTRY=JP/PRODUCT_NO=T-26017,T-26027
GG 73df5a15 43574420E8CF212A Superman - The Man of Steel/COUNTRY=EU/PRODUCT_NO=T-70068,70068-00
GG aa3f2172 0A5C6040EBCF152B Superman - The Man of Steel [Proto]/FLAGS=PROTO/COMMENT=Prototype version of the game.
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34 changes: 34 additions & 0 deletions meka/srcs/machine.cpp
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Expand Up @@ -22,6 +22,7 @@
#include "tvtype.h"
#include "sound/fmunit.h"
#include "sound/psg.h"
#include "app_game.h"

//-----------------------------------------------------------------------------
// Data
Expand Down Expand Up @@ -196,6 +197,9 @@ 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_GG_Super_9_in_1_FFFE_FFF7_FFFF:
WrZ80 = WrZ80_NoHook = Write_Mapper_GG_Super_9_in_1_FFFE_FFF7_FFFF;
break;
}
}

Expand Down Expand Up @@ -485,6 +489,24 @@ void Machine_Set_Mapping (void)
g_machine.mapper_regs[0] = 0;
break;

case MAPPER_GG_Super_9_in_1_FFFE_FFF7_FFFF:
Map_8k_ROM(0, 0 & tsms.Pages_Mask_8k);
Map_8k_ROM(1, 1 & tsms.Pages_Mask_8k);
Map_8k_ROM(2, 0 & tsms.Pages_Mask_8k);
Map_8k_ROM(3, 1 & tsms.Pages_Mask_8k);
Map_8k_ROM(4, 0 & tsms.Pages_Mask_8k);
Map_8k_ROM(5, 1 & tsms.Pages_Mask_8k);
Map_8k_RAM(6, 0);
Map_8k_RAM(7, 0);
g_machine.mapper_regs_count = 3;
for (int i = 0; i != MAPPER_REGS_MAX; i++)
g_machine.mapper_regs[i] = 0;
drv_set(DRV_GG);
gamebox_resize_all();
VDP_UpdateLineLimits();
Video_GameMode_UpdateBounds();
break;

case MAPPER_SC3000_Survivors_Multicart:
g_machine.mapper_regs_count = 1;
for (int i = 0; i != MAPPER_REGS_MAX; i++)
Expand Down Expand Up @@ -582,6 +604,18 @@ void Machine_Set_TV_Lines(void)
g_machine.TV_lines = g_machine.TV->screen_lines;
}

// RESET EMULATED CPU ---------------------------------------------------------
void Machine_Reset_Z80(void)
{
#ifdef MARAT_Z80
ResetZ80 (&sms.R);
#elif MAME_Z80
z80_reset (NULL);
#elif RAZE_Z80
z80_reset();
#endif
}

// RESET EMULATED MACHINE -----------------------------------------------------
void Machine_Reset(void)
{
Expand Down
1 change: 1 addition & 0 deletions meka/srcs/machine.h
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Expand Up @@ -17,6 +17,7 @@ void Machine_Pause (void);
void Machine_Debug_Start (void);
void Machine_Debug_Stop (void);
void Machine_Reset (void);
void Machine_Reset_Z80 (void);

void Machine_Set_Mapper (void);
void Machine_Set_Mapping (void);
Expand Down
63 changes: 63 additions & 0 deletions meka/srcs/mappers.cpp
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Expand Up @@ -14,6 +14,9 @@
#include "shared.h"
#include "mappers.h"
#include "eeprom.h"
#include "vdp.h"
#include "video.h"
#include "app_game.h"

//-----------------------------------------------------------------------------
// Data
Expand Down Expand Up @@ -952,6 +955,66 @@ WRITE_FUNC (Write_Mapper_SMS_Korean_MSX_32KB_2000)
Write_Error (Addr, Value);
}

// Mapper #43
// Super Game Gear 9 in 1 [Sonic II]
WRITE_FUNC(Write_Mapper_GG_Super_9_in_1_FFFE_FFF7_FFFF)
{
if (((Addr == 0x0A7E) && (Value & 0x20)) || (Addr == 0xFFF7) || (Addr == 0xFFFE) || (Addr == 0xFFFF)) // Configurable segment -----------------------------------------------
{
if (Addr == 0xFFF7)
{
if (! (g_machine.mapper_regs[2])) {
g_machine.mapper_regs[0] |= Value;
}
}
else if (Addr == 0xFFFF)
{
g_machine.mapper_regs[1] = Value;
}
else if (Addr == 0xFFFE)
{
g_machine.mapper_regs[2] = Value;
}
bool force_reset = false;
if ((Addr == 0x0A7E) && (Value & 0x20)) {
// This seems to force a reset and apply the mapping
g_machine.mapper_regs[1] = 0;
g_machine.mapper_regs[2] = 1;
force_reset = true;
}
if (force_reset || (Addr == 0xFFFE) || (Addr == 0xFFFF)) {
int mapbase = g_machine.mapper_regs[0] & 0xFE;
Map_8k_ROM(0, (mapbase * 2) & tsms.Pages_Mask_8k);
Map_8k_ROM(1, ((mapbase * 2) | 1) & tsms.Pages_Mask_8k);
Map_8k_ROM(2, ((mapbase * 2) | ((g_machine.mapper_regs[2] & 0x1F) * 2)) & tsms.Pages_Mask_8k);
Map_8k_ROM(3, ((mapbase * 2) | ((g_machine.mapper_regs[2] & 0x1F) * 2) | 1) & tsms.Pages_Mask_8k);
Map_8k_ROM(4, ((mapbase * 2) | ((g_machine.mapper_regs[1] & 0x1F) * 2)) & tsms.Pages_Mask_8k);
Map_8k_ROM(5, ((mapbase * 2) | ((g_machine.mapper_regs[1] & 0x1F) * 2) | 1) & tsms.Pages_Mask_8k);
}
if (g_machine.mapper_regs[0] & 0x01) {
drv_set(DRV_SMS);
} else {
drv_set(DRV_GG);
}
gamebox_resize_all();
VDP_UpdateLineLimits();
Video_GameMode_UpdateBounds();
if (force_reset) {
Machine_Reset_Z80();
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.
Expand Down
2 changes: 2 additions & 0 deletions meka/srcs/mappers.h
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Expand Up @@ -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_GG_Super_9_in_1_FFFE_FFF7_FFFF (43) // Registers at 0xFFFE, 0xFFF7, and 0xFFFF (Super Game Gear 9 in 1 [Sonic II])

#define READ_FUNC(_NAME) u8 _NAME(register u16 Addr)
#define WRITE_FUNC(_NAME) void _NAME(register u16 Addr, register u8 Value)
Expand Down Expand Up @@ -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_GG_Super_9_in_1_FFFE_FFF7_FFFF);
//-----------------------------------------------------------------------------
void Out_SC3000_SurvivorsMulticarts_DataWrite(u8 v);

Expand Down
17 changes: 14 additions & 3 deletions meka/srcs/saves.cpp
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Expand Up @@ -26,6 +26,7 @@ void Load_Game_Fixup(void)
{
int i;
u8 b;
bool sms_gg_mode_in_mapper = false;

// CPU
#ifdef MARAT_Z80
Expand Down Expand Up @@ -144,13 +145,21 @@ void Load_Game_Fixup(void)
case MAPPER_SMS_Korean_MSX_32KB_2000:
WrZ80_NoHook(0x2000, g_machine.mapper_regs[0]);
break;
case MAPPER_GG_Super_9_in_1_FFFE_FFF7_FFFF:
// rewriting these will automatically read and apply the hidden register's state
WrZ80_NoHook(0xFFFF, g_machine.mapper_regs[1]);
WrZ80_NoHook(0xFFFE, g_machine.mapper_regs[2]);
sms_gg_mode_in_mapper = true;
break;
}
}

// VDP/Graphic related
tsms.VDP_Video_Change |= VDP_VIDEO_CHANGE_ALL;
VDP_UpdateLineLimits();
// FALSE!!! // tsms.VDP_Line = 224;
if (!sms_gg_mode_in_mapper) {
tsms.VDP_Video_Change |= VDP_VIDEO_CHANGE_ALL;
VDP_UpdateLineLimits();
// FALSE!!! // tsms.VDP_Line = 224;
}

// Rewrite all VDP registers (we can do that since it has zero side-effect)
for (i = 0; i < 16; i ++)
Expand Down Expand Up @@ -339,6 +348,7 @@ 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_GG_Super_9_in_1_FFFE_FFF7_FFFF:
default:
fwrite (RAM, 0x2000, 1, f); // Do not use g_driver->ram because of g_driver video mode change
break;
Expand Down Expand Up @@ -518,6 +528,7 @@ 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_GG_Super_9_in_1_FFFE_FFF7_FFFF:
default:
fread (RAM, 0x2000, 1, f); // Do not use g_driver->ram because of g_driver video mode change
break;
Expand Down