Added x86 package

src/x86/And.go

@@ -0,0 +1,15 @@
+package x86
+
+import (
+	"git.urbach.dev/cli/q/src/cpu"
+)
+
+// AndRegisterNumber performs a bitwise AND using a register and a number.
+func AndRegisterNumber(code []byte, register cpu.Register, number int) []byte {
+	return encodeNum(code, AddressDirect, 0b100, register, number, 0x83, 0x81)
+}
+
+// AndRegisterRegister performs a bitwise AND using two registers.
+func AndRegisterRegister(code []byte, register cpu.Register, operand cpu.Register) []byte {
+	return encode(code, AddressDirect, operand, register, 8, 0x21)
+}