SYNCHX - Take a synchronous exit to a processing program

The SYNCHX macro allows a program running in primary or AR mode to take a synchronous exit to a processing program. This macro is the same as the SYNCH macro, except that, for callers in AR mode, it generates code and addresses that are appropriate in AR mode. All parameters on the SYNCH macro are valid for the SYNCHX macro.

You can issue the SYNCHX macro in 64-bit addressing mode. However, AMODE=DEFINED can only be used to SYNCHX to amode 24 or amode 31 programs.

Before you issue the SYNCHX macro, issue the SYSSTATE ASCENV=AR macro to tell the SYNCHX macro to generate code appropriate for AR mode.

Syntax

The SYNCHX macro is written as follows:

Syntax	Description

`name`	`name`: Symbol. Begin `name` in column 1.

␢	One or more blanks must precede SYNCHX.

SYNCHX

␢	One or more blanks must follow SYNCHX.

`entry point addr`	`entry point addr`: RX-type address, or register (2) - (12) or (15).

,RESTORE=NO	Default: RESTORE=NO
,RESTORE=YES

,KEYADDR=`addr`	`addr`: RX-type address, or register (2) - (12).
,KEYADDR=NOKEYADDR	Default: KEYADDR=NOKEYADDR (The key in the TCB is used.)

,STATE=PROB	Default: STATE=PROB
,STATE=SUPV

,KEYMASK=`addr`	`addr`: RX-type address, or register (0) - (12).
,XMENV=addr	addr: RX-type address or register (0) - (12).

,AMODE=24	Default: AMODE=CALLER
,AMODE=31
,AMODE=64
,AMODE=DEFINED	Note: AMODE=DEFINED can only be specified if the entry point is provided in a register. AMODE=DEFINED can only be used to SYNCHX to amode 24 and amode 31 programs.
,AMODE=CALLER

Parameters

The parameters are described under the syntax of the standard form of the SYNCH macro. If AMODE=64 is specified, the requested program will receive control in 64-bit addressing mode.