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| author | Jens Remus <jremus@linux.ibm.com> | 2023-11-23 15:46:46 +0100 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@linux.ibm.com> | 2023-11-23 15:51:03 +0100 |
| commit | fca086d928a940dc5aa3b5c0586bc5ed37d6b374 (patch) | |
| tree | 629d559bd90354cd93c7716c236c2273023548f4 /zlib/zconf.h.in | |
| parent | eeafc61979c6f8399bb5ce770e46a00823a5cfae (diff) | |
| download | gdb-fca086d928a940dc5aa3b5c0586bc5ed37d6b374.zip gdb-fca086d928a940dc5aa3b5c0586bc5ed37d6b374.tar.gz gdb-fca086d928a940dc5aa3b5c0586bc5ed37d6b374.tar.bz2 | |
s390: Align optional operand definition to specs
The IBM z/Architecture Principle of Operation [1] specifies the last
operand(s) of some (extended) mnemonics to be optional. Align the
mnemonic definitions in the opcode table according to specification.
This changes the last operand of the following (extended) mnemonics to
be optional:
risbg, risbgz, risbgn, risbgnz, risbhg, risblg, rnsbg, rosbg, rxsbg
Note that efpc and sfpc actually have only one operand, but had
erroneously been defined to have two. For backwards compatibility the
wrong RR register format must be retained. Since the superfluous second
operand is defined as optional the instruction can still be coded as
specified.
[1]: IBM z/Architecture Principles of Operation, SA22-7832-13, IBM z16,
https://publibfp.dhe.ibm.com/epubs/pdf/a227832d.pdf
opcodes/
* s390-opc.txt: Align optional operand definition to
specification.
testsuite/
* zarch-z10.s: Add test cases for risbg, risbgz, rnsbg, rosbg,
and rxsbg.
* zarch-z10.d: Likewise.
* zarch-z196.s: Add test cases for risbhg and risblg.
* zarch-z196.d: Likewise.
* zarch-zEC12.s: Add test cases for risbgn and risbgnz.
* zarch-zEC12.d: Likewise.
Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Reviewed-by: Andreas Krebbel <krebbel@linux.ibm.com>
Diffstat (limited to 'zlib/zconf.h.in')
0 files changed, 0 insertions, 0 deletions