Added build script

README.md

@@ -2,4 +2,4 @@
 
 Demoscene-ish tiny intros and other sizecoding experiments.
 
-Assemble with [nasm](https://www.nasm.us/).
+Assemble with [nasm](https://www.nasm.us/) or use the provided `build.sh` bash script.

build.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+# $1 : name of the folder to build
+# Make sure that nasm is on the PATH!
+
+# fail if no folder name is specified
+if [[ "$#" -eq 0 ]] ; then
+    exit 1
+fi
+
+# try to find the main .asm file
+file="$1"
+[ ! -f "$1/$file.asm" ] && file="main"
+[ ! -f "$1/$file.asm" ] && file="test"
+[ ! -f "$1/$file.asm" ] && exit 1
+
+# assemble it
+if command -v nasm &> /dev/null ; then
+    nasm -w+error -f bin -o "$1/$file.com" "$1/$file.asm" || exit 1
+else
+    echo "nasm not on path?"
+    exit 1
+fi
+
+# show .com file size
+if [[ -f "$1/$file.com" ]] ; then
+    size=$(stat -f%z "$1/$file.com")
+    echo "$1/$file.com" : "$size" bytes
+fi