ShuriZma
/
BizHawk
mirror of https://github.com/TASEmulators/BizHawk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

SMS: Set stack pointer to RAM for Aerial Assult (W)

This commit is contained in:
alyosha-tas 2018-06-10 18:30:12 -04:00
parent 62d1005ed9
commit fe3e7c3dd2
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
BizHawk.Emulation.Cores/Consoles/Sega/SMS/SMS.cs
View File

@ -5,6 +5,7 @@ using BizHawk.Emulation.Common;
using BizHawk.Emulation.Common.Components;
using BizHawk.Emulation.Cores.Components;
using BizHawk.Emulation.Cores.Components.Z80A;
using BizHawk.Common.BufferExtensions;
/*****************************************************
TODO:
@ -205,6 +206,15 @@ namespace BizHawk.Emulation.Cores.Sega.MasterSystem
Cpu.ReadMemory = ReadMemory;
Cpu.WriteMemory = WriteMemory;
// This particular game relies on an uninitialized Stack pointer to not be 0 or 0xFFFF
// It does not appear from documentation that the stack pointer is initialized to anything
// so just give it a value that doesn't break the game.
if (rom.HashSHA1() == "CBDBAAEB62A8483D9D5A8757B0F19233DFB9B416")
{
Cpu.Regs[Cpu.SPl] = 0x4;
Cpu.Regs[Cpu.SPh] = 0xFF;
}
}
// Constants