diff options
Diffstat (limited to 'Emulator/Chip/HIDDevice.cs')
| -rw-r--r-- | Emulator/Chip/HIDDevice.cs | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/Emulator/Chip/HIDDevice.cs b/Emulator/Chip/HIDDevice.cs index 87bb2c3..c8a7d04 100644 --- a/Emulator/Chip/HIDDevice.cs +++ b/Emulator/Chip/HIDDevice.cs @@ -1,5 +1,7 @@ namespace Q1.Emulator.Chip; +using System; + public class HIDDevice : RamDevice { public HIDDevice(u16 start) : base(start, HIDDevice.CalculateSize()) { } @@ -24,7 +26,7 @@ public class HIDDevice : RamDevice int bit = scanCode & 7; // keyCode % 8 ushort addr = (ushort) (4 + index); - u8 value = this.Read(addr); + u8 value = this.Read((u16) (this.AddressableStart + addr)); if (pressed) value |= (u8) (1 << bit); @@ -33,4 +35,15 @@ public class HIDDevice : RamDevice this.Write((u16) (this.AddressableStart + addr), value); } + + public bool GetKeyboard(int scanCode) + { + int index = scanCode >> 3; + int bit = scanCode & 7; + + ushort addr = (ushort) (4 + index); + byte value = this.Read((u16) (this.AddressableStart + addr)); + + return (value & (1 << bit)) != 0; + } }
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