C.SETC.TGT

assembly

[
  "c.setc.tgt srcL"
]

block

[]

catalog_indices

[
  37
]

catalog_records

[
  {
    "asm": "c.setc.tgt srcL",
    "constraints": [],
    "encoding": [
      {
        "index": 0,
        "mask": "0xf83f",
        "match": "0x001c",
        "width_bits": 16
      }
    ],
    "encoding_kind": "C16",
    "fields": [
      {
        "name": "SrcL",
        "pieces": [
          {
            "instruction_lsb": 6,
            "value_lsb": 0,
            "width": 5
          }
        ],
        "signedness": "encoding-defined",
        "width": 5
      }
    ],
    "form_id": "c_setc_tgt_16_736be9cada01",
    "length_bits": 16,
    "mnemonic": "C.SETC.TGT",
    "semantic_family": "ALU",
    "semantic_group": "ALU",
    "semantic_handler": "SetCommitTarget",
    "semantic_summary": "Snapshot one scalar source value into the active block BARG.BPCN.",
    "status": "accepted"
  }
]

classification

[
  "alu"
]

contract

{
  "block_composition": [
    "Applicable inside one active Standard or Floating block. The first successful occurrence owns the block target; a second occurrence is illegal."
  ],
  "canonical_assembly": [
    "c.setc.tgt srcL"
  ],
  "defaults": [
    "C.SETC.TGT has no omitted operand. SrcL code zero names the architectural zero GPR and snapshots numeric zero."
  ],
  "encoding_class": "standalone-encoded",
  "examples": [
    "c.setc.tgt a0",
    "c.setc.tgt T#1"
  ],
  "exceptions": [
    "No active Standard or Floating block, or a second successful C.SETC.TGT in the active block, raises Fault_BundleControl before source readiness or any state effect.",
    "An unavailable relative source raises Fault_IllegalInstruction before changing BARG.BPCN, the uniqueness marker, TPC, or queue state.",
    "An odd snapshotted target is accepted by C.SETC.TGT and raises Fault_InstructionPC only if the later block commit selects it."
  ],
  "field_contracts": {},
  "field_zero_meanings": {
    "SrcL": "Encoded zero names the architectural zero GPR."
  },
  "legality": [
    "All SrcL codes 0..31 are assigned common scalar sources; relative sources are non-consuming and must be available when the instruction executes.",
    "C.SETC.TGT is legal only while a Standard or Floating block is active. At most one C.SETC.TGT may complete successfully in that block.",
    "Target alignment is not checked by C.SETC.TGT; the block commit boundary validates the final selected BARG.BPCN."
  ],
  "memory_effects": [
    "none"
  ],
  "operands": [
    {
      "field": "SrcL",
      "role": "common scalar source: absolute GPR, T#1..T#4, or U#1..U#4"
    }
  ],
  "ordering": [
    "Applicability and duplicate checks precede source readiness and source read. Source readiness precedes the BARG.BPCN update.",
    "Later changes to the source register or queue cannot alter the pending target."
  ],
  "standalone_opcode": true,
  "state_effects": [
    "Read and snapshot the complete selected 64-bit source, then atomically replace active BARG.BPCN with that value.",
    "Set the block-private successful-C.SETC.TGT marker only after the target snapshot succeeds. Do not retain the selector and do not modify the generic commit-condition argument."
  ]
}

depends_on

[
  "PTO-BLOCK-MODEL-SCHEMA-PROFILE-ENCODING"
]

id

PTO-SCALAR-C-SETC-TGT

mnemonic

C.SETC.TGT

summary

Snapshot one scalar source value into the active block BARG.BPCN.

surface

scalar

{
  "classification": [
    "alu"
  ],
  "documentation": "docs/scalar/alu/C.SETC.TGT.md",
  "id": "PTO-SCALAR-C-SETC-TGT",
  "instruction_contract": {
    "artifact": "spec/evidence/instruction-contract-closure.json",
    "mnemonic": "C.SETC.TGT",
    "ndf_clause": "PTO-INST-SCALAR-C-SETC-TGT"
  },
  "mnemonic": "C.SETC.TGT",
  "readiness_subjects": [
    "ADR-0026",
    "ADR-0059",
    "ADR-0061",
    "ADR-0084"
  ],
  "semantic_tests": [
    "PTO-AVS-SCALAR-C-SETC-TGT-ABS-001",
    "PTO-AVS-SCALAR-C-SETC-TGT-DUP-001",
    "PTO-AVS-SCALAR-C-SETC-TGT-READY-001",
    "PTO-AVS-SCALAR-C-SETC-TGT-REL-001",
    "PTO-AVS-SCALAR-C-SETC-TGT-TARGET-001"
  ],
  "source": "asl/scalar/alu/C.SETC.TGT.asl",
  "surface": "scalar",
  "tests": [
    "PTO-AVS-SCALAR-C-SETC-TGT-ABS-001",
    "PTO-AVS-SCALAR-C-SETC-TGT-DECODE-001",
    "PTO-AVS-SCALAR-C-SETC-TGT-DUP-001",
    "PTO-AVS-SCALAR-C-SETC-TGT-READY-001",
    "PTO-AVS-SCALAR-C-SETC-TGT-REL-001",
    "PTO-AVS-SCALAR-C-SETC-TGT-TARGET-001"
  ]
}