公开(公告)号：US3693161A

公开(公告)日：1972-09-19

申请号：US3693161D

申请日：1970-07-09

Applicant: BURROUGHS CORP

Inventor： PRICE WILLIAM CHANDLER ,  HAUCK ERWIN A ,  VIGIL JACOB F

IPC: G06F13/40 ,  G06F15/177 ,  H04J3/12 ,  G06F13/00

CPC classification number: G06F13/4022 ,  G06F15/177

Abstract: There is described a computer system in which one or more processors can interrogate, on command, the input/output system to determine whether communication paths are available to the respective peripheral units. The input/output system has one or more multiplexors which service a number of input/output channels, each channel having a peripheral control unit that controls one or more peripheral devices. Some peripheral devices are operated by more than one peripheral control unit and associated channel through a switching exchange. The input/output system, in response to an interrogation command executed by any of the processors and identifying a selected peripheral device, returns information to the processor indicating whether or not a communication path is available to the designated peripheral device and, if more than one channel is available, which multiplexor has a channel available to that device. The processor then can initiate an input/output operation between the particular unit and memory.

Abstract translation: 描述了一种计算机系统，其中一个或多个处理器可以根据命令询问输入/输出系统以确定通信路径是否可用于各个外围单元。 输入/输出系统具有服务于多个输入/输出通道的一个或多个多路复用器，每个通道具有控制一个或多个外围设备的外围控制单元。 一些外围设备由多个外围控制单元和相关通道通过切换交换来操作。 输入/输出系统响应于任何处理器执行的询问命令并识别选定的外围设备，向处理器返回指示通信路径是否可用于指定的外围设备的信息，如果多于一个 通道可用，哪个多路复用器具有可用于该设备的通道。 然后，处理器可以启动特定单元和存储器之间的输入/输出操作。

公开(公告)号：US3659272A

公开(公告)日：1972-04-25

申请号：US3659272D

申请日：1970-05-13

Applicant: BURROUGHS CORP

Inventor： PRICE WILLIAM CHANDLER ,  BILLARD STEPHEN LANE

IPC: G06F9/48 ,  G06F11/34 ,  G06F11/36 ,  G06F11/04 ,  G06F9/18

CPC classification number: G06F9/4881 ,  G06F11/3466 ,  G06F11/3636

Abstract: There is described a computer system in which execution of each instruction or operator of a program procedure may result in an interrupt condition depending upon the condition of a trace bit of a program control word associated with the procedure. The interrupt causes a trace interrupt procedure to be initiated by which a program trace is recorded for the particular instruction. Entry into another procedure causes the trace bit to be stored and a new trace bit established for the new procedure being entered.

Abstract translation: 描述了一种计算机系统，其中程序过程的每个指令或操作者的执行可以根据与该过程相关联的程序控制字的跟踪位的条件而导致中断条件。 中断使得启动跟踪中断过程，通过该过程记录特定指令的程序跟踪。 进入另一个过程会导致跟踪位被存储，并为新程序建立一个新的跟踪位被输入。