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370系统机器校验处理机构提供了广泛的机器故障检测手段,以保证系统操作的完整性,某些故障的自动修复,以及靠机器校验中断进行报告以便维修和校正,和对程序中的破坏进行估价和恢复。12-1 机器校验检测机器校验检测机构可能有很多形式,特别是对于算术和逻辑运算、编址、排顺序和执行等控制功能。对于程序可定址的信息,检验通常是靠信息中剩余编码来完成,其办法是在保存和传送信息时大多数故障能形成一个无效码。编码往往形成几位剩余位附属到一组信息位上。这些剩余位称作“校验位”。这一组数据位及其相应的校验位称为“校验信息组”。
The 370 system machine verification facility provides a wide range of machine fault detection tools to ensure the integrity of system operations, automatic repair of certain faults, and reporting by machine verification interrupts for repair and calibration, as well as for program damage Conduct valuation and recovery. 12-1 Machine Verification Testing Machine verification testing may take many forms, especially for control functions such as arithmetic and logic operations, addressing, scheduling and execution. For programmably addressable information, testing is usually done by remaining code in the message by failing to form an invalid code for most failures when saving and transmitting information. The code often forms a few bits remaining attached to a group of bits of information. These remaining bits are called “Parity ”. This set of data bits and their corresponding parity bits is called “check information set”.