BS ISO/IEC 20060:2010

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Data types, stack notation and flags
6 OTA virtual machine
7 System Services
8 Token Set Definition
9 Module Delivery Format
Annex A (normative) - OTA Token Lists
Annex B (normative) - Exceptions and I/O Return Codes
Annex C (normative) - Device Control
Annex D (normative) - Operating System Calls
Annex E (normative) - Rules for Using a Data Object List (DOL)
Annex F (informative) - System Overview
Bibliography

Gives the specifications for the standard Open Terminal Architecture (OTA) kernel in several layers: - definition of the virtual machine (VM); - description of the services provided by the VM to terminal programmers; - specification of a set of tokens representing the native machine language of the VM; - specification of the format in which token modules are delivered to an OTA kernel for processing.

This International Standard provides the specifications for the standard Open Terminal Architecture (OTA) kernel in several layers:

• definition of the virtual machine (VM);

• description of the services provided by the VM to terminal programmers;

• specification of a set of tokens representing the native machine language of the VM;

• specification of the format in which token modules are delivered to an OTA kernel for processing.

OTA defines a standard software kernel whose functions and programming interface are common across all terminal types. This kernel is based on a standard “virtual machine,?? which is implemented on each CPU type and which provides drivers for the terminal\'s I/O and all low-level CPU-specific logical and arithmetic functions. High-level libraries, terminal programs and payment applications may be developed using these standard kernel functions.