Added assembler instructions

src/build/Build.go

@@ -2,23 +2,24 @@ package build
 
 import (
 	"bufio"
-	"bytes"
 	"os"
 	"path/filepath"
 	"strings"
 
+	"git.akyoto.dev/cli/q/src/asm"
+	"git.akyoto.dev/cli/q/src/asm/x64"
 	"git.akyoto.dev/cli/q/src/directory"
 	"git.akyoto.dev/cli/q/src/elf"
 	"git.akyoto.dev/cli/q/src/errors"
 	"git.akyoto.dev/cli/q/src/log"
+	"git.akyoto.dev/cli/q/src/register"
+	"git.akyoto.dev/cli/q/src/syscall"
 )
 
 // Build describes a compiler build.
 type Build struct {
 	Name            string
 	Directory       string
-	Code            bytes.Buffer
-	Data            bytes.Buffer
 	WriteExecutable bool
 }
 
@@ -39,11 +40,26 @@ func (build *Build) Run() error {
 		return err
 	}
 
-	if build.WriteExecutable {
-		return writeToDisk(build.Executable(), build.Code.Bytes(), build.Data.Bytes())
+	if !build.WriteExecutable {
+		return nil
 	}
 
-	return nil
+	final := asm.Assembler{}
+	code := &final.Code
+	data := &final.Data
+
+	x64.MoveRegNum32(code, register.Syscall0, syscall.Write)
+	x64.MoveRegNum32(code, register.Syscall1, 1)
+	x64.MoveRegNum32(code, register.Syscall2, 0x4000a2)
+	x64.MoveRegNum32(code, register.Syscall3, 6)
+	x64.Syscall(code)
+
+	x64.MoveRegNum32(code, register.Syscall0, syscall.Exit)
+	x64.MoveRegNum32(code, register.Syscall1, 0)
+	x64.Syscall(code)
+
+	data.WriteString("Hello\n")
+	return writeToDisk(build.Executable(), code.Bytes(), data.Bytes())
 }
 
 // Compile compiles all the functions.
@@ -66,19 +82,6 @@ func (build *Build) Compile() error {
 		log.Info.Println(file)
 	})
 
-	build.Code.Write([]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
-	})
-
-	build.Data.Write([]byte{'H', 'e', 'l', 'l', 'o', '\n'})
 	return nil
 }