diff --git a/build/Build.go b/build/Build.go
index ac3198e..fbc2a56 100644
--- a/build/Build.go
+++ b/build/Build.go
@@ -6,6 +6,7 @@ import (
 	"path/filepath"
 
 	"git.akyoto.dev/cli/q/build/elf"
+	"git.akyoto.dev/cli/q/cli/log"
 )
 
 // Build describes a compiler build.
@@ -23,6 +24,23 @@ func New(directory string) (*Build, error) {
 		return nil, err
 	}
 
+	file, err := os.Open(directory)
+
+	if err != nil {
+		return nil, err
+	}
+
+	defer file.Close()
+	files, err := file.Readdirnames(0)
+
+	if err != nil {
+		return nil, err
+	}
+
+	for _, name := range files {
+		log.Info.Println(name)
+	}
+
 	executableName := filepath.Base(directory)
 
 	build := &Build{
@@ -36,29 +54,34 @@ func New(directory string) (*Build, error) {
 
 // Run parses the input files and generates an executable file.
 func (build *Build) Run() error {
+	code := build.Compile()
+
 	if build.WriteExecutable {
-		sampleCode := []byte{
-			0xb8, 0x01, 0x00, 0x00, 0x00, // mov eax, 1
-			0xbf, 0x01, 0x00, 0x00, 0x00, // mov edi, 1
-			0xbe, 0x80 + 0x22, 0x00, 0x40, 0x00, // mov esi, 0x4000A2
-			0xba, 0x06, 0x00, 0x00, 0x00, // mov edx, 6
-			0x0f, 0x05, // syscall
-
-			0xb8, 0x3c, 0x00, 0x00, 0x00, // mov eax, 60
-			0xbf, 0x00, 0x00, 0x00, 0x00, // mov edi, 0
-			0x0f, 0x05, // syscall
-
-			'H', 'e', 'l', 'l', 'o', '\n',
-		}
-
-		return writeToDisk(build.ExecutablePath, sampleCode, nil)
+		return writeToDisk(build.ExecutablePath, code)
 	}
 
 	return nil
 }
 
+// Compile compiles all the functions.
+func (build *Build) Compile() []byte {
+	return []byte{
+		0xb8, 0x01, 0x00, 0x00, 0x00, // mov eax, 1
+		0xbf, 0x01, 0x00, 0x00, 0x00, // mov edi, 1
+		0xbe, 0xa2, 0x00, 0x40, 0x00, // mov esi, 0x4000a2
+		0xba, 0x06, 0x00, 0x00, 0x00, // mov edx, 6
+		0x0f, 0x05, // syscall
+
+		0xb8, 0x3c, 0x00, 0x00, 0x00, // mov eax, 60
+		0xbf, 0x00, 0x00, 0x00, 0x00, // mov edi, 0
+		0x0f, 0x05, // syscall
+
+		'H', 'e', 'l', 'l', 'o', '\n',
+	}
+}
+
 // writeToDisk writes the executable file to disk.
-func writeToDisk(filePath string, code []byte, data []byte) error {
+func writeToDisk(filePath string, code []byte) error {
 	file, err := os.Create(filePath)
 
 	if err != nil {
diff --git a/build/elf/elf.go b/build/elf/elf.go
index 1da251e..22e800e 100644
--- a/build/elf/elf.go
+++ b/build/elf/elf.go
@@ -6,7 +6,8 @@ import (
 )
 
 const (
-	baseAddress = 0x400000
+	minAddress  = 0x10000
+	baseAddress = 0x40 * minAddress
 )
 
 // ELF64 represents an ELF 64-bit file.
diff --git a/cli/Build.go b/cli/Build.go
index 19f7544..e93d442 100644
--- a/cli/Build.go
+++ b/cli/Build.go
@@ -1,10 +1,8 @@
 package cli
 
 import (
-	"os"
-
 	"git.akyoto.dev/cli/q/build"
-	"git.akyoto.dev/cli/q/log"
+	"git.akyoto.dev/cli/q/cli/log"
 )
 
 func Build(args []string) int {
@@ -14,18 +12,6 @@ func Build(args []string) int {
 		directory = args[0]
 	}
 
-	stat, err := os.Stat(directory)
-
-	if err != nil {
-		log.Error.Println(err)
-		return 1
-	}
-
-	if !stat.IsDir() {
-		log.Error.Println("Build path must be a directory")
-		return 2
-	}
-
 	b, err := build.New(directory)
 
 	if err != nil {
diff --git a/cli/Help.go b/cli/Help.go
index 87da5c3..73559c9 100644
--- a/cli/Help.go
+++ b/cli/Help.go
@@ -1,7 +1,7 @@
 package cli
 
 import (
-	"git.akyoto.dev/cli/q/log"
+	"git.akyoto.dev/cli/q/cli/log"
 )
 
 func Help(args []string) int {
diff --git a/cli/System.go b/cli/System.go
index 4bde621..538a178 100644
--- a/cli/System.go
+++ b/cli/System.go
@@ -4,7 +4,7 @@ import (
 	"os"
 	"runtime"
 
-	"git.akyoto.dev/cli/q/log"
+	"git.akyoto.dev/cli/q/cli/log"
 )
 
 func System(args []string) int {
diff --git a/log/log.go b/cli/log/log.go
similarity index 100%
rename from log/log.go
rename to cli/log/log.go
diff --git a/cli_test.go b/cli_test.go
index c1aef37..376ddd1 100644
--- a/cli_test.go
+++ b/cli_test.go
@@ -18,7 +18,7 @@ func TestCLI(t *testing.T) {
 		{[]string{"invalid"}, 2},
 		{[]string{"system"}, 0},
 		{[]string{"build", "non-existing-directory"}, 1},
-		{[]string{"build", "examples/hello/hello.q"}, 2},
+		{[]string{"build", "examples/hello/hello.q"}, 1},
 		{[]string{"build", "examples/hello", "--invalid"}, 2},
 	}
 
diff --git a/main_test.go b/main_test.go
index 9bf72ae..d05e9a6 100644
--- a/main_test.go
+++ b/main_test.go
@@ -5,7 +5,7 @@ import (
 	"os"
 	"testing"
 
-	"git.akyoto.dev/cli/q/log"
+	"git.akyoto.dev/cli/q/cli/log"
 )
 
 func TestMain(m *testing.M) {