SMS/GG: PowerOn Z80 SP init - stops some games from crashing/note loading

2018-09-25 09:25:54 +01:00 · 2018-09-25 09:25:54 +01:00 · b747ac22d7
parent 57fd6051e9
commit b747ac22d7
1 changed files with 5 additions and 0 deletions
--- a/BizHawk.Emulation.Cores/Consoles/Sega/SMS/SMS.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Sega/SMS/SMS.cs
@ -206,6 +206,11 @@ namespace BizHawk.Emulation.Cores.Sega.MasterSystem

 			Cpu.ReadMemory = ReadMemory;
 			Cpu.WriteMemory = WriteMemory;
+
+			// Z80 SP initialization
+			// stops a few SMS and GG games from crashing
+			Cpu.Regs[Cpu.SPl] = 0xF0;
+			Cpu.Regs[Cpu.SPh] = 0xDF;
 		}

 		// Constants