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https://github.com/Ryujinx/Ryujinx.git
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73 lines
1.9 KiB
C#
73 lines
1.9 KiB
C#
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using System.IO;
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using System.Text;
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namespace ChocolArm64.Memory
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{
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public static class AMemoryHelper
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{
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public static void FillWithZeros(AMemory Memory, long Position, int Size)
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{
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int Size8 = Size & ~(8 - 1);
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for (int Offs = 0; Offs < Size8; Offs += 8)
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{
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Memory.WriteInt64(Position + Offs, 0);
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}
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for (int Offs = Size8; Offs < (Size - Size8); Offs++)
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{
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Memory.WriteByte(Position + Offs, 0);
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}
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}
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public static byte[] ReadBytes(AMemory Memory, long Position, int Size)
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{
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byte[] Data = new byte[Size];
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for (int Offs = 0; Offs < Size; Offs++)
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{
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Data[Offs] = (byte)Memory.ReadByte(Position + Offs);
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}
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return Data;
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}
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public static void WriteBytes(AMemory Memory, long Position, byte[] Data)
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{
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for (int Offs = 0; Offs < Data.Length; Offs++)
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{
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Memory.WriteByte(Position + Offs, Data[Offs]);
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}
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}
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public static string ReadAsciiString(AMemory Memory, long Position, int MaxSize = -1)
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{
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using (MemoryStream MS = new MemoryStream())
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{
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for (int Offs = 0; Offs < MaxSize || MaxSize == -1; Offs++)
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{
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byte Value = (byte)Memory.ReadByte(Position + Offs);
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if (Value == 0)
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{
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break;
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}
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MS.WriteByte(Value);
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}
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return Encoding.ASCII.GetString(MS.ToArray());
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}
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}
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public static long PageRoundUp(long Value)
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{
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return (Value + AMemoryMgr.PageMask) & ~AMemoryMgr.PageMask;
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}
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public static long PageRoundDown(long Value)
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{
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return Value & ~AMemoryMgr.PageMask;
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}
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}
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}
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