Add Zettai Zetsumei Toshi 3 bypass for softlock

Core/Compatibility.cpp

@@ -94,6 +94,7 @@ void Compatibility::CheckSettings(IniFile &iniFile, const std::string &gameID) {
 	CheckSetting(iniFile, gameID, "BlueToAlpha", &flags_.BlueToAlpha);
 	CheckSetting(iniFile, gameID, "CenteredLines", &flags_.CenteredLines);
 	CheckSetting(iniFile, gameID, "MaliDepthStencilBugWorkaround", &flags_.MaliDepthStencilBugWorkaround);
+	CheckSetting(iniFile, gameID, "ZZT3SelectHack", &flags_.ZZT3SelectHack);
 }
 
 void Compatibility::CheckSetting(IniFile &iniFile, const std::string &gameID, const char *option, bool *flag) {

Core/Compatibility.h

@@ -84,6 +84,7 @@ struct CompatFlags {
 	bool BlueToAlpha;
 	bool CenteredLines;
 	bool MaliDepthStencilBugWorkaround;
+	bool ZZT3SelectHack;
 };
 
 class IniFile;

Core/HLE/ReplaceTables.cpp

@@ -1361,6 +1361,15 @@ static int Hook_gow_vortex_hack() {
 	return 0;
 }
 
+static int Hook_ZZT3_select_hack() {
+	if (PSP_CoreParameter().compat.flags().ZZT3SelectHack) {
+		if (currentMIPS->r[MIPS_REG_V0] == 0) {
+			currentMIPS->r[MIPS_REG_V0] = 1;
+		}
+	}
+	return 0;
+}
+
 #define JITFUNC(f) (&MIPSComp::MIPSFrontendInterface::f)
 
 // Can either replace with C functions or functions emitted in Asm/ArmAsm.
@@ -1479,6 +1488,7 @@ static const ReplacementTableEntry entries[] = {
 	{ "soltrigger_render_ucschar", &Hook_soltrigger_render_ucschar, 0, REPFLAG_HOOKENTER, 0 },
 	{ "gow_fps_hack", &Hook_gow_fps_hack, 0, REPFLAG_HOOKEXIT , 0 },
 	{ "gow_vortex_hack", &Hook_gow_vortex_hack, 0, REPFLAG_HOOKENTER, 0x60 },
+	{ "ZZT3_select_hack", &Hook_ZZT3_select_hack, 0, REPFLAG_HOOKENTER, 0xC4 },
 	{}
 };
 

Core/MIPS/MIPSAnalyst.cpp

@@ -508,7 +508,8 @@ static const HardHashTableEntry hardcodedHashes[] = {
 	{ 0xffc8f5f8f946152c, 192, "dl_write_light_color", },
 	{ 0x249a3c5981c73480, 1472, "openseason_data_decode", },  // Open Season
 	{ 0x795d940ad0a605f8, 40, "gow_fps_hack", }, // God of War (all)
-	{ 0x4c75043b7b0c643b, 512, "gow_vortex_hack", } // God of War: Ghost of Sparta vortex timer hack, avoids softlock #8299
+	{ 0x4c75043b7b0c643b, 512, "gow_vortex_hack", }, // God of War: Ghost of Sparta vortex timer hack, avoids softlock #8299
+	{ 0x7624dde603717640, 288, "ZZT3_select_hack", }, // Zettai Zetsumei Toshi 3 - bypasses softlock on character select screen #4901
 };
 
 namespace MIPSAnalyst {

assets/compat.ini

@@ -1228,3 +1228,14 @@ UCES01011 = true
 UCAS40197 = true
 NPEG00006 = true
 NPUG80135 = true
+
+[ZZT3SelectHack]
+# Bypass softlock on Zettai Zetsumei Toshi 3 character select screen #4901
+# This problem affects the game also on PS3
+ULJS00191 = true
+UCAS40252 = true
+UCKS45119 = true
+NPJH50907 = true
+UCAS40328 = true
+ULJS19050 = true
+NPJH50907 = true