DCR(1prom)          RISC/os Reference Manual           DCR(1prom)



NAME
     dcr - display current registers

SYNOPSIS
     dcr [cpu_number]

AVAILABILITY
     This command is available only on RC6380 systems.

DESCRIPTION
     dcr is a PROM monitor or standalone shell (sash(1M)) com-
     mand. This command causes the CPU specified by cpu_number to
     dump the current status and registers to memory. For exam-
     ple, dcr 1  displays register information for CPU 1. Omit-
     ting cpu_number displays register information for the master
     CPU (this is the only CPU on single-processor computers).

     The location at which the registers are dumped is returned
     to the calling routine. This routine picks up the register
     information from memory, then formats and displays it.
     Registers destroyed by the dump process are denoted by a
     question mark (?) preceding the register contents (for exam-
     ple, r7 (a3)?a0011728).

     Note that the PROMS EPC register shown on the display is the
     PROM and standalone shell (sash(1M)) exception program
     counter and is used only for debugging the PROM. Do not con-
     fuse it with the system EPC register.

SEE ALSO
     prom(1prom), sash(1M)





















                        Printed 11/19/92                   Page 1