I'm not really an asm programmer, but the 3rd parm '-1' looks iffy to me. 
Should you not OR the 2nd parm with x'80000000'? Or can you use link with a VL 
option instead? 

Julian
-- 
Sent from my Android phone with K-9 Mail. Please excuse my brevity.

Staffan Tylen <[email protected]> wrote:

I can't get my head around this one, I'm 100% sure the answer is starring at me 
but I just don't see it. I'm writing an assembler program that invokes SORT 
using LINK. There are E15 and E35 exits to handle records going in and out of 
the sort, but it keeps abending with S0C4 and sometimes S0C1, depending on 
whether the exit routines are half or fullword aligned :( To eliminate other 
possible causes I created the following very simple program where the E15 exit 
returns RC=16 to tell SORT just to terminate without doing anything. But it 
also abends in the same way. The PSW seems to point at an unrelated ISPF module 
in the LPA, but I haven't investigated that further. This is the code:

TEST60 CSECT 
TEST60 AMODE 31 
TEST60 RMODE ANY 
SAVE (14,12) 
LR 12,15 
USING TEST60,12 

LA 11,SAVEAREA 
ST 11,8(,13) 
ST 13,4(,11) 
LR 13,11 

LA 1,SORTPARM 
LINK EP=SORT 

L 13,4(,13) 
ST 15,16(,13) 
LM 14,12,12(13) 
BR 14 

DS 0F 
SAVEAREA DS 18F 
SORTPARM DC A(SORTSTMT) 
DC A(E15_EXIT) 
DC A(E35_EXIT) 
DC F'-1' 
SORTSTMT DC AL2(SORTEND-SORT) 
SORT DC C' SORT FIELDS=(1,1,CH,A)' 
DC C' RECORD TYPE=F,LENGTH=80'
SORTEND EQU * 

E15_EXIT DS 0F 
LA 15,16 Terminate SORT
BR 14 
E35_EXIT DS 0F 
LA 15,8 
BR 14 
END TEST60 

It can't be more simple than this, like any piece of "Hello World" code. I've 
tried linkedit as either RENT or NORENT, same result. The sort program produces 
diagnostic messages on SYSOUT as expected, so it gets called OK. So, who is the 
first to spot the obvious flaw that I can't see? Thanks for helping out.

Staffan

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