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GBHawk: MBC2 proper Bank masking 

Fixes #1229
This commit is contained in:
alyosha-tas 2018-06-26 08:17:33 -04:00
parent 4160af8eaa
commit 7ff08fb63e
1 changed files with 2 additions and 2 deletions
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4
BizHawk.Emulation.Cores/Consoles/Nintendo/GBHawk/Mappers/Mapper_MBC2.cs
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@ -4,7 +4,7 @@ using System;
namespace BizHawk.Emulation.Cores.Nintendo.GBHawk namespace BizHawk.Emulation.Cores.Nintendo.GBHawk
{ {
// MBC1 with bank switching and RAM // MBC2 with bank switching and RAM
public class MapperMBC2 : MapperBase public class MapperMBC2 : MapperBase
{ {
public int ROM_bank; public int ROM_bank;
@ -62,7 +62,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBHawk
{ {
if ((addr & 0x100) > 0) if ((addr & 0x100) > 0)
{ {
ROM_bank = value & 0xF; ROM_bank = value & 0xF & ROM_mask;
if (ROM_bank==0) { ROM_bank = 1; } if (ROM_bank==0) { ROM_bank = 1; }
} }
} }