z/Reference is a technical reference app for IBMs z/Architecture. This app provides quick access to information found in IBMs z/Architecture Reference Summary. Features:Instructions: - Lists 983 instructions sorted by name, mnemonic and opcode - Search on instruction name, mnemonic and opcode - Groups the instructions by type (general, control, decimal, floating point, etc.)Instruction Condition Codes: - Lists the instruction condition codes by instruction type (e.g. General, Decimal, etc.) Assembler: - Lists the assembler instructions by type (e.g. USING, DROP, etc.) - Lists the assembler system variables (e.g. &SYSDATC, &SYSDATE, etc.) - Lists the assembler options (e.g. ADATA, ALIGN, etc.)Interrupts: - Lists the interrupt types/categories (e.g. external, I/O, program, etc.) - Lists the external interrupt types (e.g. x1004, x1005, etc.) - Lists the program interrupt types (e.g. 0C1, 0C4, etc.)PSW: - Formats both the z/Architecture PSW and ESA/390 PSWCNOP: -Lists the various CNOP alignmentsPrinter: - Lists the ANSI and machine printer control charactersPowers of 2 and 16: - Lists the powers of 2 and 16IBM and z/Architecture are registered trademarks of International Business Machines Corporation.