FORTH theory & practice

1 About this Manual 1 2 About FORTH 3 3 Starting FORTH 7 4 Stacks of Arithmetic 9 5 FORTH Definitions 19 6 Conditionals and Loops 35 7 The Ins and Outs of FORTH 45 8 Tape Interface and Editor 55 9 Graphics 65 10 What Does 69 11 Further Examples 77 12 Error Messages 89 Glossary of FORTH Words 91 Appendix A Two 1s-Complement Arithmetic 117 Appendix B System FORTH 119 Appendix C Dictionary Entry Structure 121 Appendix D Memory Allocation 125 Appendix E Further Reading 129 Index 131