You have to give READ the address of the buffer, not the address of a pointer to it.
For 64-bit there is a different DECB format; I believe that's SF64. ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Joseph Reichman <reichman...@gmail.com> Sent: Tuesday, March 21, 2023 11:22 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: BSAM READ AMODE 31 RMODE 31 Still have problems With the read I tried last night and it worked let me explain The address of the IO area I store in a full word IOBUFF When I did LA R7,IOBUFF And then did READ ADATADECB,SF,(R6),(R7),’S’,MF=E It worked today morning didn’t change code had problems When I did L R7,IOBUFF it didn’t I know both Binyamin and Charles Mills in their example had Load but it doesn’t make sense At +12 is the address of a pointer to the IOAREA if that were the address it self What if you had a 64 bit pointer (which bsam supoorts) so it had to be a pointer to where the pointer ( in 64 bit that would 8 bytes ) Thanks > On Mar 20, 2023, at 3:46 PM, Seymour J Metz <sme...@gmu.edu> wrote: > > IMHO it's clearer to just use > > READ PDSDECB,SF,PDSDCB,address _of_READ_buffer,MF=E > CHECK PDSDECB > > > -- > Shmuel (Seymour J.) Metz > http://mason.gmu.edu/~smetz3 > > ________________________________________ > From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of > Joseph Reichman [reichman...@gmail.com] > Sent: Monday, March 20, 2023 9:20 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: BSAM READ AMODE 31 RMODE 31 > > Hi > > > > I know Charles Mills answered my question nearly 4 weeks ago but I would > just like to corroborate the I/O areas for the read can be 31 bit addressing > only the dcb and decb need to be below the line > > I am running AMODE 31 RMODE 31 > > > > The DCB is below the line as well as the DECB > > > > My read returns ok > > > > After I set a beak point after the CHECK I get As S0D9 ABEND with a SDUMP > > > > This the example that Charles sent to me does nt say anything about the > IOAREAS or pointers to the IOAREAS > > > > LA Rn,PDSDCB > > ST Rn,PDSDECB+8 PLACE DCB ADDRESS IN DECB > > L Rn,address of READ buffer > > READ PDSDECB,SF,,(Rn),MF=E CHECK PDSDECB > > > > > > > > > > This is my read > > > > READ ADATADECB,SF,(R6),IOBUFF,'S',MF=E > > > > The IOBUFF is a full word pointer to the storage I obtain > > > > > > Here is my code > > > > LA R0,IODSECTLEN > > STORAGE OBTAIN,LENGTH=(R0),ADDR=(R6),LOC=BELOW,SP=0 > > LR R9,R6 > > USING IHADCB,R9 > > USING IODSECT,R6 > > * > > * > > LA R7,SYSADATA > > MVC 0(IODSECTLEN,R6),0(R7) > > * > > LA R7,SYSDCBE-SYSADATA(,R6) > > ST R7,DCBDCBE > > LA R7,EX24LST-SYSADATA(,R6) > > STCM R7,B'0111',DCBEXLSA > > LA R7,ABND24-SYSADATA(,R6) > > STCM R7,B'0111',ABND24ADR-SYSADATA(R6) > > LA R7,ABENDRTN > > ST R7,ABEND31-SYSADATA(,R6) > > * > > T L R0,=F'31996' > > * > > STORAGE OBTAIN,LENGTH=(R0),ADDR=(R7),LOC=RES,SP=0 > > * LA R7,IOAREA > > * ST R7,IOPTR > > * > > ST R7,IOBUFF > > MVC OPEN_LST(OPEN_LEN),OPEN_CON > > OPEN ((R6),INPUT),MF=(E,OPEN_LST),MODE=31 > > * > > TM DCBOFLGS,DCBOFOPN > > BZ EXITDEBG > > USING ASMADATA,R7 > > L R10,IOBUFF > > PROCADATA DS 0H > > READ ADATADECB,SF,(R6),IOBUFF,'S',MF=E > > * > > CHECK ADATADECB > > * > > OPEN_CON OPEN (*-*,INPUT),MF=L,MODE=31 > > SYSADATA DCB DDNAME=SYSADATA,RECFM=VB,MACRF=RP,DSORG=PS,DCBE=SYSDCBE,EXX > > LST=EX24LST > > > > IHADECB DSECT=NO > > DECBLEN EQU *-DECB > > SYSDCBE DCBE EODAD=FIN,GETSIZE=YES,LOC=ANY,RMODE31=BUFF,SYNAD=SYNAD,VEX > > RSION=1 > > EX24LST DS 0F > > ADATAEXLST DC AL1(EXLDCBAB+X'80') > > ABND24ADR DS AL3 > > ABND24 DS 0H > > L R15,ABEND31-SYSADATA(,R15) > > BSM 0,R15 > > ABEND31 DS XL4 > > STROGE24 EQU *-EX24LST > > * > > IODSECT DSECT > > ADATADCB DS CL(DCBLNGBS) > > ADATADECB DS CL(DECBLEN) > > ADATADCBE DS CL(DCBELENV1) > > DS 0F > > INST31 DS CL(STROGE24) > > IODSECTLEN EQU *-IODSECT > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
