JVM bytecode assembler in Standard ML

$ sml
Standard ML of New Jersey v110.80 [built: Sun Aug 28 21:15:09 2016]
- CM.make "lib.cm"; Main.main ();
[autoloading]
[library $smlnj/cm/cm.cm is stable]
[library $smlnj/internal/cm-sig-lib.cm is stable]
[library $/pgraph.cm is stable]
[library $smlnj/internal/srcpath-lib.cm is stable]
[library $SMLNJ-BASIS/basis.cm is stable]
[library $SMLNJ-BASIS/(basis.cm):basis-common.cm is stable]
[autoloading done]
[scanning lib.cm]
[library $SMLNJ-LIB/Util/smlnj-lib.cm is stable]
[loading (lib.cm):src/prim.sml]
[loading (lib.cm):src/text.sig]
[loading (lib.cm):src/text.sml]
[loading (lib.cm):src/util.sml]
[loading (lib.cm):src/class-name.sml]
[loading (lib.cm):src/descriptor.sml]
[loading (lib.cm):src/method-handle.sml]
[loading (lib.cm):src/const-pool.sig]
[loading (lib.cm):src/const-pool.sml]
[loading (lib.cm):src/instr.sml]
[loading (lib.cm):src/attr.sml]
[loading (lib.cm):src/member.fun]
[loading (lib.cm):src/method.sml]
[loading (lib.cm):src/field.sml]
[loading (lib.cm):src/class.sml]
[loading (lib.cm):src/main.sml]
[New bindings added.]
val it = true : bool
Hello, World!
val it = () : unit
-