mirror of
https://github.com/MoleskiCoder/EightBitNet.git
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43 lines
1.8 KiB
C#
43 lines
1.8 KiB
C#
namespace EightBit
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{
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public class Chip : Device
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{
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protected Chip() { }
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public static void ClearFlag(ref byte f, byte flag) => f &= (byte)~flag;
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public static void SetFlag(ref byte f, byte flag) => f |= flag;
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public static void SetFlag(ref byte f, byte flag, int condition) => SetFlag(ref f, flag, condition != 0);
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public static void SetFlag(ref byte f, byte flag, bool condition)
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{
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if (condition)
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SetFlag(ref f, flag);
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else
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ClearFlag(ref f, flag);
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}
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public static void ClearFlag(ref byte f, byte flag, int condition) => ClearFlag(ref f, flag, condition == 0);
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public static void ClearFlag(ref byte f, byte flag, bool condition) => SetFlag(ref f, flag, !condition);
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public static int HighByte(int value) => LowByte(value >> 8);
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public static byte HighByte(ushort value) => (byte)LowByte((int)value);
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public static int LowByte(int value) => value & (int)Mask.Mask8;
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public static byte LowByte(ushort value) => (byte)LowByte((int)value);
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public static int PromoteByte(int value) => value << 8;
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public static ushort PromoteByte(byte value) => (ushort)PromoteByte((int)value);
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public static int DemoteByte(int value) => HighByte(value);
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public static byte DemoteByte(ushort value) => (byte)HighByte((int)value);
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public static int HighNibble(byte value) => value >> 4;
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public static int LowNibble(byte value) => value & 0xf;
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public static int HigherNibble(byte value) => value & 0xf0;
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public static int LowerNibble(byte value) => LowNibble(value);
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public static int PromoteNibble(byte value) => value << 4;
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public static int DemoteNibble(byte value) => HighNibble(value);
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}
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}
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