Execute Channel Program

In IBM mainframe operating systems, Execute Channel Program (EXCP) is a supervisor call for low-level device access, where the programmer is responsible for providing a list of device-specific CCWs, that is, a channel program, to be executed by I/O channels, control units and devices. EXCP is more specifically described in the OS System Programmer's Guide.

单词	Execute Channel Program
释义	Execute Channel Program 英语百科 Execute Channel Program In IBM mainframe operating systems, Execute Channel Program (EXCP) is a supervisor call for low-level device access, where the programmer is responsible for providing a list of device-specific CCWs, that is, a channel program, to be executed by I/O channels, control units and devices. EXCP is more specifically described in the OS System Programmer's Guide.
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