ElfLdr: Early WIP support for tricky jampack demo

This will not be finished for v0.5 most likely, but it's
something I guess. Game at least tries to boot. Hangs trying to load SIO2MAN.IRX though :(

Probably the last major code before I freeze and only bugtest for v0.5 release.

Author: modeco80

src/elfldr/Patches/HostFS.cpp

@@ -143,7 +143,23 @@ namespace elfldr {
 					break;
 
 				case util::GameVersion::SSXDVD_JAMPACK_DEMO:
-					ELFLDR_VERIFY(false && "sorry, this doesnt work atm. please give me at least 5 minutes of research time");
+					util::NopFill<84>(util::Ptr(0x001803ec));
+
+					util::ReplaceString(util::Ptr(0x00381db8), "");
+					util::ReplaceString(util::Ptr(0x00381dc0), "host:");
+
+					util::ReplaceString(util::Ptr(0x00381b10), "host:data/modules/ioprp224.img");
+
+					util::WriteString(util::Ptr(0x00381bd0), "host:data/modules/sio2man.irx");
+
+					//util::WriteString(util::Ptr(0x00381bd0), "");
+					util::WriteString(util::Ptr(0x00381c00), "host:data/modules/padman.irx");
+					util::WriteString(util::Ptr(0x00381c90), "host:data/modules/libsd.irx");
+					util::WriteString(util::Ptr(0x00381ca8), "host:data/modules/snddrv.irx");
+					util::WriteString(util::Ptr(0x00381ca8), "host:data/modules/mcman.irx");
+					util::WriteString(util::Ptr(0x00381d38), "host:data/modules/mcserv.irx");
+
+					//ELFLDR_VERIFY(false && "sorry, this doesnt work atm. please give me at least 5 minutes of research time");
 					break;
 			}
 		}

src/elfldr/Patches/MemoryClear.cpp

@@ -69,7 +69,7 @@ namespace elfldr {
 					break;
 
 				case util::GameVersion::SSXDVD_JAMPACK_DEMO:
-					ELFLDR_VERIFY(false && "doesnt work for now, please bug me later.");
+					//ELFLDR_VERIFY(false && "doesnt work for now, please bug me later.");
 					break;
 
 				default:

src/utils/GameVersion.cpp

@@ -38,6 +38,8 @@ namespace elfldr::util {
 							ELFLDR_ASSERT(false && "Invalid region!");
 					}
 					break;
+				case GameVersion::SSXDVD_JAMPACK_DEMO:
+					return "SSXDEMO.ELF";
 			}
 
 			ELFLDR_UNREACHABLE();