init

1 files changed, 59 insertions, 0 deletions

diff --git a/as/main.go b/as/main.go
new file mode 100644
index 0000000..95aff46
--- /dev/null
+++ b/as/main.go
@@ -0,0 +1,59 @@
+package main
+
+import (
+	"os"
+	"fmt"
+)
+
+func usage(arg0 string) {
+	fmt.Fprintf(os.Stderr, "usage: %s [-o file] file.easm\n", os.Args[0])
+	os.Exit(1)
+}
+
+func main() {
+	if (len(os.Args) <= 2) {
+		usage(os.Args[0])
+	}
+	
+	
+	var aout int = 0
+	var ain int = 0
+
+	for i := 0; i < len(os.Args); i++ {
+		fmt.Println(os.Args[i])
+		switch os.Args[i] {
+		case "-o": 
+			i = i + 1
+			aout = i
+		default: 
+			ain = i
+		}
+	}
+
+	if (ain == 0) {
+		usage(os.Args[0])
+	}
+	
+	var outf string = "out.bin"
+	if (aout != 0) {
+		outf = os.Args[aout]
+	}
+
+	b, errin := os.ReadFile(os.Args[ain])
+	out, errout := os.Create(outf)
+
+	if errin != nil {
+		fmt.Fprintf(os.Stderr, "failed to read file: %s\n", os.Args[ain])
+		os.Exit(1)
+	}
+
+	if errout != nil {
+		fmt.Fprintf(os.Stderr, "failed to create file for output: %s\n", outf)
+		os.Exit(1)
+	}
+
+	s := string(b)
+	c := Assemble(s)
+
+	out.Write(c)
+}