VAX-11 Programming Card

This document is a "VAX-11 Programming Card" published by Digital Equipment Corporation (DEC) in 1983, serving as a quick reference guide for VAX-11 assembly language programming.

It provides comprehensive information across various aspects of the VAX-11 architecture and instruction set, including:

1. Addressing Modes: Detailed tables and explanations of general register and program counter addressing modes, their assembler notation, operand access types (read, modify, write, address, field), and indexability. A key defines all abbreviations.
2. Operand Specifier Notation & Data Types: Descriptions of operand syntax, various access types, and a wide range of VAX data types (byte, word, longword, quadword, octaword, and different floating-point formats), complete with their memory layouts.
3. Instruction Set: An extensive listing of VAX-11 instructions, categorized by their hexadecimal opcode and numeric order, including mnemonics, descriptions, arguments, and their effects on processor condition codes (N, Z, V, C).
4. Processor Status: Diagrams illustrating the layout and fields of the Processor Status Longword (PSL) and Processor Status Word (PSW), detailing elements like interrupt priority level, access modes, and condition codes.
5. Data Representation: Information and diagrams for various data formats, such as variable-length bit fields, character strings, and different numeric string formats (zoned, overpunch, leading separate, packed decimal), along with their sign representations.
6. System Structures: Diagrams of the VAX-11 stack frame format and argument list format.
7. Conversion Tables: Practical reference tables for hexadecimal-to-ASCII conversion, hexadecimal-to-decimal conversion, and powers of 2 and 16.