[PATCH 30/46] s390: Add optional operand M3 to .insn pseudo-mnemonic rxe
Project / Subsystem
binutils / s390
Date
2026-10-05
Proposer
Jens Remus <jremus@linux.ibm.com>
Source type
public_inbox
Consensus
Proposed
Sentiment
—/10
Technical tradeoffs
- • Increases the flexibility of the `.insn rxe` directive.
- • Requires careful validation to ensure correct parsing with and without the M3 operand.
All attributes
- project
- binutils
- subsystem
- s390
- patch_id
- —
- discussion_id
- 20261005153947.363053-78-jremus@linux.ibm.com
- source_type
- public_inbox
- title
- [PATCH 30/46] s390: Add optional operand M3 to .insn pseudo-mnemonic rxe
- headline
- s390: Add optional operand M3 to .insn pseudo-mnemonic rxe
- tldr
- Makes the M3 mask operand optional for the .insn rxe pseudo-mnemonic in the s390 assembler.
- proposer
- Jens Remus <jremus@linux.ibm.com>
- consensus
- Proposed
- outcome
- proposed
- sentiment_score
- —
- technical_tradeoffs
-
- • Increases the flexibility of the `.insn rxe` directive.
- • Requires careful validation to ensure correct parsing with and without the M3 operand.
- series_id
- binutils:s390: add optional operand m3 to .insn pseudo-mnemonic rxe
- series_role
- reply
- series_parts
- []
- tags
-
- • s390
- • assembler
- • instruction-format
- • optional-operand
- bugzilla_url
- —
- date
- 2026-10-05T00:00:00.000Z
[PATCH 30/46] s390: Add optional operand M3 to .insn pseudo-mnemonic rxe
This patch makes the M3 mask operand optional for the .insn rxe pseudo-mnemonic in the s390 assembler, allowing for backward-compatible coding of all operands. This aligns with the RXE instruction format’s optional M3 field. The changes include documentation updates and new test cases for both ESA/390 and z/Architecture operand formats.