| Abstract: | The MARY12 language implemented at Penobscot Research Center contains language differences from previous MARY implementations. These differences significantly increase the difficulty of implementing a compiler. Similar constructs have appeared in recent language proposals such as those for ADA. The methods of the MARY/2 compiler should be useful in compilers for these and other future languages. This paper discusses the language constructs which are the source of the difficulty; the implementation methods actually used; possible trade used; and the character of the programs which these constructs facilitate. |
