Failing Instruction in Context:
00000000_160870AC -10 4040 4040 STH R4,64(,R4)
00000000_160870B0 -C 4040 4040 STH R4,64(,R4)
00000000_160870B4 -8 4040 4040 STH R4,64(,R4)
00000000_160870B8 -4 4040 4040 STH R4,64(,R4)
00000000_160870BC 0 4040 0000 STH R4,0
00000000_160870C0 4 0000 Invalid Opcode
00000000_160870C2 6 FFFF Invalid Opcode
00000000_160870C4 8 FFB2 Invalid Opcod
Storage around Failing Instruction
Address Offset Hex Data
1608709C -20 40404040 40404040 40404040 40404040
160870AC -10 40404040 40404040 40404040 40404040
160870BC 0 40400000 0000FFFF FFB21608 70001608
160870CC 10 70380000 00080000 00061608 7038160A
All of this is showing you that your program has been overwritten, or that your program has branched to somewhere it shouldn't. The "Storage around Failing Instruction" would normally be showing you the other instructions. You have spaces, some low-values, some high-values and some things which look a bit like addresses.Either
your code has been overwritten with storage, or
, you have branched into storage.
You may recognise from what Steve Myers said earlier. I have stated that the overwriting is more likely because it is a Cobol program. However, the x'BC' for your location from the start of the module Progb is absurdly small for a Cobol program. That displacement is probably in the intitialisation of the program.
When you can, see if you can compile the Progb with the generated pseudo-assembler.