The following sample edit module transposes a 6-digit date from yymmdd to mmddyy format. The #MOPT macro included in this sample module generates register equates for use in coding the module, sets up a CSECT name for the module, and includes the name of the macro and its date/time stamp in future listings of the module. Use of the #MOPT macro is optional.
Edit modules can be either SYSTEM or USER MODE programs; the majority are USER MODE. To specify a user-written edit module mode, use the #MOPT macro. Set the ENV parameter to USER for the USER MODE program or to SYS or SYSTEM for SYSTEM MODE. If you do not set the ENV parameter, the defaults imply that it is set to USER.
If a DC request is issued, USER MODE programs need to be link edited with IDMSBALI or need to issue a #BALI macro within the user-written edit module. If a DC request is not issued in the program, there is no need to link edit the program with IDMSBALI or to issue a #BALI macro within the code.
You don't need to link edit SYSTEM MODE edit modules with IDMSBALI or have the program contact the #BALI macro. However, the CSA DSECT must be copied into your code if you issue any DC request. If you issue a DC request, R9 and R10 must point to the TCE and CSA at the time of the request.
Note: It is recommended that this module be performed before automaticediting so that an external picture can be used to insert slashes (/) into the date to make it mm/dd/yy.
COPY #CSADS 00000100
COPY #MRBDS 00000200
#MOPT CSECT=CSYPDTE2,ENV=SYS 00000300
DTE2NTRY #START MPMODE=ANY 00000400
********************************************************************** 00000500
* R1 POINTS TO A SIX WORD PARAMETER LIST FOR MAPOUT AS FOLLOWS: * 00000600
* * 00000700
* WORD1 0(R1) ───► ADDRESS OF DATA IN USER'S RECORD BUFFER * 00000800
* WORD2 4(R1) ───► ADDRESS OF NEXT POSITION IN OUTPUT BUFFER * 00000900
* WORD3 8(R1) ───► ADDRESS OF MRE * 00001000
* WORD4 12(R1) ───► ADDRESS OF MCE * 00001100
* WORD5 16(R1) ───► ADDRESS OF PTE * 00001200
* WORD6 20(R1) ───► ADDRESS OF MRB * 00001300
********************************************************************** 00001400
L R2,0(R1) GET ADDRESS OF DATA FIELD 00001500
L R3,4(R1) GET ADDRESS OF NEXT OUTBUF POS 00001600
L R4,8(R1) GET ADDRESS OF MRE 00001700
USING MRE,R4 00001800
USING CSA,R10 00001900
#TEST MRETERR,OFF=FLIPDATE ARE WE IN AN ERROR CYCLE ? 00002000
MVC 0(6,R3),=C'?00000' MOVE ERROR FIELD TO BUFFER 00002100
B RETURN 00002200
FLIPDATE MVC 0(2,R3),2(R2) MOVE MONTH 00002300
MVC 2(2,R3),4(R2) MOVE DAY 00002400
MVC 4(2,R3),0(R2) MOVE YEAR 00002500
MVC 0(6,R2),0(R3) MOVE REVERSED FIELD INTO BUFFER 00002600
RETURN LA R1,6(R3) INCREMENT USER BUFFER POINTER 00002700
#RTN 00002800
END DTE2NTRY 00002900
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