公开(公告)号：US3831148A

公开(公告)日：1974-08-20

申请号：US32004873

申请日：1973-01-02

Applicant: HONEYWELL INF SYSTEMS

Inventor： GREENWALD D ,  HOLTEY T

IPC: G06F9/22 ,  G06F9/30 ,  G06F9/32 ,  G06F11/10 ,  G06F11/22 ,  G06F11/267 ,  G11C29/16 ,  G06F11/04

CPC classification number: G06F11/2236 ,  G06F9/22 ,  G06F11/10 ,  G11C29/16

Abstract: Diagnostic apparatus tests the operation of a control store included within data processing apparatus to verify the contents of each storage location and the operation of logic circuits associated therewith. The diagnostic apparatus is utilized when a resident maintenance routine stored within the control store is referenced which causes the read out of a microinstruction included within a predetermined control store location. Logic circuits included within the diagnostic apparatus decode the microinstruction and generate a subcommand which transfers control to the diagnostic apparatus. The diagnostic apparatus inhibits all operations except the addressing and the reading of the control store locations. The contents of the control store locations are checked in sequence by checking circuits until either the logic circuits decode a second microinstruction or until an error is detected. When the checking circuits detect an error, they cause the diagnostic apparatus to halt the test. At this time, the contents of the control store address register are displayed indicating where the failure occurred. When no failures are displayed, testing continues until a second microinstruction is decoded by the apparatus which completes the testing by causing the transfer of control back to the control store enabling execution of subsequently read microinstructions.

Abstract translation: 诊断装置测试包括在数据处理装置内的控制存储器的操作，以验证每个存储位置的内容和与其相关联的逻辑电路的操作。 当存储在控制存储器内的驻留维护程序被参考时，利用诊断装置，这导致包含在预定控制存储位置内的微指令的读出。 包括在诊断装置内的逻辑电路解码微指令并产生将控制传送到诊断装置的子命令。 诊断装置禁止除控制存储位置的寻址和读取之外的所有操作。 通过检查电路来顺序地检查控制存储位置的内容，直到逻辑电路解码第二微指令或直到检测到错误为止。 当检查电路检测到错误时，它们使诊断装置停止测试。 此时，显示控制存储地址寄存器的内容，指示发生故障的位置。 当没有显示故障时，测试继续进行，直到由完成测试的设备对第二微指令进行解码，通过使控制转移回控制存储器，从而能够执行随后读取的微指令。

公开(公告)号：US3728690A

公开(公告)日：1973-04-17

申请号：US3728690D

申请日：1971-08-26

Applicant: HONEYWELL INF SYSTEMS

Inventor： HOLTEY T ,  GREENWALD D

IPC: G06F9/22 ,  G06F9/26 ,  G06F9/32 ,  G06F9/38 ,  G06F11/277 ,  G06F11/28 ,  G06F11/04

CPC classification number: G06F9/3869 ,  G06F9/22 ,  G06F9/226 ,  G06F9/268 ,  G06F11/277

Abstract: Diagnostic hardware and a method for diagnosis and confidence testing of ROM branching capabilities. Logical circuitry including an RIT flip-flop, which when set modifies the operation of a halt ''''HLT'''' micro-op which normally stops the clock, so that the halt ''''HLT'''' micro-op will not stop the clock and its absence or the presence of any other micro-op will stop the clock. Execution of any of a predetermined set of branch microinstructions to predetermined memory locations, sets the RIT flip-flop and causes a branch to a location containing a ''''HLT.'''' If branching operates properly, the program continues; if not the machine halts, thus identifying the error and avoiding loss of control of the machine.

Abstract translation: 诊断硬件和ROM分支功能的诊断和置信度测试方法。 包括RIT触发器的逻辑电路，当设置修改暂停“HLT”微操作的操作时，通常停止时钟，使得停止“HLT”微操作不会停止时钟及其不存在或不存在 任何其他微操作的存在将停止时钟。 对预定的存储器位置执行预定的一组分支微指令中的任何一个，设置RIT触发器并使分支到包含“HLT”的位置。 如果分支运作正常，程序继续; 如果不是机器停止，从而识别错误并避免机器的失控。