LSRGET

assembly

[
  "lsrget LSR_ID, ->{t, u, Rd}"
]

block

[]

catalog_indices

[
  338
]

catalog_records

[
  {
    "asm": "lsrget LSR_ID, ->{t, u, Rd}",
    "constraints": [],
    "encoding": [
      {
        "index": 0,
        "mask": "0x000ff07f",
        "match": "0x0000303b",
        "width_bits": 32
      }
    ],
    "encoding_kind": "L32",
    "fields": [
      {
        "name": "LSR_ID",
        "pieces": [
          {
            "instruction_lsb": 20,
            "value_lsb": 0,
            "width": 12
          }
        ],
        "signedness": "encoding-defined",
        "width": 12
      },
      {
        "name": "RegDst",
        "pieces": [
          {
            "instruction_lsb": 7,
            "value_lsb": 0,
            "width": 5
          }
        ],
        "signedness": "encoding-defined",
        "width": 5
      }
    ],
    "form_id": "lsrget_32_448b17d7c20a",
    "length_bits": 32,
    "mnemonic": "LSRGET",
    "semantic_family": "SYS",
    "semantic_group": "SYS",
    "semantic_handler": "ExecuteLocalStateRegisterGet",
    "semantic_summary": "LSRGET reads one assigned word from the active block BARG view.",
    "status": "accepted"
  }
]

classification

[
  "sys"
]

contract

{
  "block_composition": [
    "LSRGET is legal in any active block body for which the selected BARG word exists."
  ],
  "canonical_assembly": [
    "lsrget LSR_ID, ->{t, u, Rd}"
  ],
  "defaults": [
    "Every displayed operand is encoded explicitly. Encoded zero is an assigned value and never denotes omission."
  ],
  "encoding_class": "standalone-encoded",
  "examples": [
    "lsrget LSR_ID, ->{t, u, Rd}"
  ],
  "exceptions": [
    "Invalid block placement raises Illegal Block Exception before encoded-field legality or effects.",
    "An unassigned or block-inapplicable BARG word raises Illegal Block Exception before destination, queue, system-state, or TPC effects."
  ],
  "field_contracts": {},
  "field_zero_meanings": {
    "LSR_ID": "Encoded zero selects BARG.BPC; it is not omission.",
    "RegDst": "Encoded zero names the architectural zero GPR."
  },
  "legality": [
    "IDs 0, 1, and 2 select BPC, BPCN, and the packed BARG control word; IDs 3 through 4095 are reserved.",
    "ID 1 is applicable only to Standard and Floating blocks because other block types have no selecting BPCN."
  ],
  "memory_effects": [
    "none"
  ],
  "operands": [
    {
      "field": "LSR_ID",
      "role": "active BARG word identifier"
    },
    {
      "field": "RegDst",
      "role": "Reg5 destination: discard, R1..R23, push U, or push T"
    }
  ],
  "ordering": [
    "Check active-body placement, ID assignment, and selected-word applicability before any destination or queue effect.",
    "Snapshot the BARG word, publish it through RegDst, and then advance TPC."
  ],
  "standalone_opcode": true,
  "state_effects": [
    "ID 0 returns BARG.BPC; ID 1 returns BARG.BPCN; ID 2 returns the canonical packed control word.",
    "The packed word contains BlockType, applicable TYPE and TAKEN, atomic, acquire, release, far, and dimension-reduction fields, with all higher bits zero.",
    "LSRGET does not modify BARG or the system-register file."
  ]
}

depends_on

[
  "PTO-BLOCK-MODEL-STATE-BARG"
]

id

PTO-SCALAR-LSRGET

mnemonic

LSRGET

summary

LSRGET reads one assigned word from the active block BARG view.

surface

scalar

{
  "classification": [
    "sys"
  ],
  "documentation": "docs/scalar/sys/LSRGET.md",
  "id": "PTO-SCALAR-LSRGET",
  "instruction_contract": {
    "artifact": "spec/evidence/instruction-contract-closure.json",
    "mnemonic": "LSRGET",
    "ndf_clause": "PTO-INST-SCALAR-LSRGET"
  },
  "mnemonic": "LSRGET",
  "readiness_subjects": [
    "ADR-0018",
    "ADR-0031",
    "ADR-0059",
    "ADR-0084"
  ],
  "semantic_tests": [
    "PTO-AVS-SYS-LSRGET-APPLICABLE-001",
    "PTO-AVS-SYS-LSRGET-BPCN-001",
    "PTO-AVS-SYS-LSRGET-CONTROL-001",
    "PTO-AVS-SYS-LSRGET-DISCARD-001",
    "PTO-AVS-SYS-LSRGET-EXEC-001",
    "PTO-AVS-SYS-LSRGET-PLACE-001",
    "PTO-AVS-SYS-LSRGET-RSVD-001",
    "PTO-AVS-SYS-LSRGET-TDST-001",
    "PTO-AVS-SYS-LSRGET-UDST-001"
  ],
  "source": "asl/scalar/sys/LSRGET.asl",
  "surface": "scalar",
  "tests": [
    "PTO-AVS-SCALAR-LSRGET-DECODE-001",
    "PTO-AVS-SYS-LSRGET-APPLICABLE-001",
    "PTO-AVS-SYS-LSRGET-BPCN-001",
    "PTO-AVS-SYS-LSRGET-CONTROL-001",
    "PTO-AVS-SYS-LSRGET-DISCARD-001",
    "PTO-AVS-SYS-LSRGET-EXEC-001",
    "PTO-AVS-SYS-LSRGET-PLACE-001",
    "PTO-AVS-SYS-LSRGET-RSVD-001",
    "PTO-AVS-SYS-LSRGET-TDST-001",
    "PTO-AVS-SYS-LSRGET-UDST-001"
  ]
}