never mind, more coffee
On 4/27/2023 9:12 AM, Clifford McNeill wrote:
should this load
L R3,=X'7FFFFFFF' string maximum length
be a load address?
LA R3,=X'7FFFFFFF'
On 4/27/2023 8:52 AM, Binyamin Dissen wrote:
Which flavor of 0C4?
If PIC-10/11, the address is reported.
On Thu, 27 Apr 2023 19:58:23 +0700 Robin Atwood <abend...@gmail.com>
wrote:
:>I have had two of these during the course of two months, so it's
getting
:>serious!
:>
:>The abend happens in my implementation of a C strupr() function
when the TRE
:>instruction is executed:
:>
:>
:>
:> L R3,=X'7FFFFFFF' string maximum length
:>
:> XR R0,R0 zero terminator byte
:>
:> LA R1,UPRX translate table
:>
:>TST TRE R2,R1 fold string
:>
:> BC 1,TST resume translation
:>
:>
:>
:> R0 R1 R2 R3
:>PSW
:>
:>00000000 0009C5EC 1AA748F8 7FFFFFFF 078D04008009BD14
:>
:>
:>
:>The memory pointed to by R1 and R2 is addressable and in Sp0, key
8, so bog
:>standard. I know R3
:>
:>looks dodgy, but that is because the string to be upper-cased must
be zero
:>byte terminated.
:>
:>R2 points at X'D4C6C9E3E2E3404000', so the format is correct. Given
all
:>this, why has the instruction caused an
:>
:>abend? The code lives in a server that is running all day, every
day. I
:>wondered if the target data had been
:>
:>released by another task, but VSMDATA showed a DQE for the data's
page and
:>no FQE for the data itself,
:>
:>so the data should still be available (as I understand it). Notice
R3 hasn't
:>changed, so the abend happened
:>
:>on the very first byte.
:>
:>
:>
:>Any suggestions gratefully received!
:>
:>Robin
:>
:>
:>
:>
:>
:>
:>
:>
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--
Binyamin Dissen <bdis...@dissensoftware.com>
http://www.dissensoftware.com
Director, Dissen Software, Bar & Grill - Israel
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