*copy osa$ei_stack_frame
         page
..
.
.  Common deck osa$dual_state_170_os_stack
.
.  Additional static variables for processing of 170 traps when NOS/VE is
.  up and running.  The 170 trap handler is part of NOS/VE monitor when
.  NOS/VE is running.  When NOS/VE goes down the 170 trap handling
.  environment reverts back to the trap handler in EI.  The 170 trap
.  handler in EI knows nothing about these variables.
.

         use       stack
         org       static_size
ve_down  bss       8                   .0 if ve up, 1*2**30 set if VE down.  This
                                       . value is merged in with responses from the
                                       . 170 trap handler when processing 017
                                       . instructions that have to do with VE
                                       . operation.  The caller can than determine
                                       . that VE is down.
forcede  bss       2                   .forced entry flag
dispbuf  bss       6                   .current display buffer
.
.  MLI variables
.
         ALIGN     0,8
ic       bss       8                   .initial request count
pc       bss       8                   .polling request count
fc       bss       8                   .queue full count
nrc      bss       8                   .polling request not ready count
erc      bss       8                   .error count
xrc      bss       8                   .170 XR count
entry    bss       1                   .current entry index
.
         do        $>sf_wrk
         error     c'EI working storage overflow.'
         dend
.
         use       #lastsec
.
.***  End common deck OSA$DUAL_STATE_170_OS_STACK
