Simplified file structure

src/arch/x64/encodeNum.go

@@ -0,0 +1,19 @@
+package x64
+
+import (
+	"encoding/binary"
+
+	"git.akyoto.dev/cli/q/src/cpu"
+	"git.akyoto.dev/cli/q/src/sizeof"
+)
+
+// encodeNum encodes an instruction with up to two registers and a number parameter.
+func encodeNum(code []byte, mod AddressMode, reg cpu.Register, rm cpu.Register, number int, opCode8 byte, opCode32 byte) []byte {
+	if sizeof.Signed(int64(number)) == 1 {
+		code = encode(code, mod, reg, rm, 8, opCode8)
+		return append(code, byte(number))
+	}
+
+	code = encode(code, mod, reg, rm, 8, opCode32)
+	return binary.LittleEndian.AppendUint32(code, uint32(number))
+}