Implemented instruction lists

src/asm/Base.go

@@ -0,0 +1,23 @@
+package asm
+
+import (
+	"io"
+
+	"git.akyoto.dev/cli/q/src/asm/x64"
+)
+
+// Base represents the data that is common among all instructions.
+type Base struct {
+	Mnemonic Mnemonic
+}
+
+func (x *Base) Write(w io.ByteWriter) {
+	switch x.Mnemonic {
+	case SYSCALL:
+		x64.Syscall(w)
+	}
+}
+
+func (x *Base) String() string {
+	return x.Mnemonic.String()
+}