Operands and parameters
RegDst- absolute GPR destination
SrcL- left absolute GPR source
SrcR- right absolute GPR source
SrcRType- right-source modifier selector
CMP.OR - Combine scalar comparison results with the encoded logical operation.
PTO-SCALAR-CMP-ORcmp.or SrcL, SrcR<.sw, .uw, .not>, ->{t, u, Rd}| Field | Bits | Signedness | Architectural role | Encoded zero |
|---|---|---|---|---|
RegDst | 5 | encoding-defined | absolute GPR destination | Encoded zero names the architectural zero GPR. |
SrcL | 5 | encoding-defined | left absolute GPR source | Encoded zero names the architectural zero GPR. |
SrcR | 5 | encoding-defined | right absolute GPR source | Encoded zero names the architectural zero GPR. |
SrcRType | 2 | encoding-defined | right-source modifier selector | Encoded zero selects value zero of the right-source modifier selector. |
Loading WaveDrom diagram… The encoding table and WaveJSON remain available below.
| Decoded item | Bit range | Value |
|---|---|---|
| Constant | 31:27 | 5'b00000 |
| SrcRType | 26:25 | variable |
| SrcR | 24:20 | variable |
| SrcL | 19:15 | variable |
| Constant | 14:12 | 3'b011 |
| RegDst | 11:7 | variable |
| Constant | 6:0 | 7'b1000101 |
{
"reg": [
{
"bits": 7,
"name": "7'b1000101"
},
{
"bits": 5,
"name": "RegDst"
},
{
"bits": 3,
"name": "3'b011"
},
{
"bits": 5,
"name": "SrcL"
},
{
"bits": 5,
"name": "SrcR"
},
{
"bits": 2,
"name": "SrcRType"
},
{
"bits": 5,
"name": "5'b00000"
}
],
"config": {
"bits": 32,
"fontsize": 13,
"hspace": 900,
"lanes": 1,
"offset": 0
}
}cmp.or SrcL, SrcR<.sw, .uw, .not>, ->{t, u, Rd}
RegDstSrcLSrcRSrcRTypeThis Operation comes directly from the instruction owner; the page does not rewrite its behavior.
readonly func InstructionContractOperation_CMP_OR() => ScalarOperationbegin return ScalarOperation_CMP_OR;end;readonly func InstructionContractHandler_CMP_OR() => ScalarSemanticHandlerbegin return ScalarHandler_ExecuteCompareLogical;end;
pure func InstructionContractCombinesWithOR_CMP_OR() => booleanbegin return TRUE;end;
pure func InstructionContractCompareLogicalValue_CMP_OR( left: Word, right: Word) => Wordbegin if InstructionContractCombinesWithOR_CMP_OR() then return left OR right; end; return left AND right;end;// PTO-INSTRUCTION: {"assembly":["cmp.or SrcL, SrcR<.sw, .uw, .not>, ->{t, u, Rd}"],"block":[],"catalog_indices":[69],"catalog_records":[{"asm":"cmp.or SrcL, SrcR<.sw, .uw, .not>, ->{t, u, Rd}","constraints":[],"encoding":[{"index":0,"mask":"0xf800707f","match":"0x00003045","width_bits":32}],"encoding_kind":"L32","fields":[{"name":"RegDst","pieces":[{"instruction_lsb":7,"value_lsb":0,"width":5}],"signedness":"encoding-defined","width":5},{"name":"SrcL","pieces":[{"instruction_lsb":15,"value_lsb":0,"width":5}],"signedness":"encoding-defined","width":5},{"name":"SrcR","pieces":[{"instruction_lsb":20,"value_lsb":0,"width":5}],"signedness":"encoding-defined","width":5},{"name":"SrcRType","pieces":[{"instruction_lsb":25,"value_lsb":0,"width":2}],"signedness":"encoding-defined","width":2}],"form_id":"cmp_or_32_75e1fa54ba94","length_bits":32,"mnemonic":"CMP.OR","semantic_family":"BRU","semantic_group":"BRU","semantic_handler":"ExecuteCompareLogical","semantic_summary":"CMP.OR - Combine scalar comparison results with the encoded logical operation.","status":"accepted"}],"classification":["bru"],"contract":{"block_composition":["none"],"canonical_assembly":["cmp.or SrcL, SrcR<.sw, .uw, .not>, ->{t, u, Rd}"],"defaults":["The selected assembly form determines which fields are present; every present field carries its encoded value and no encoded zero means omission."],"encoding_class":"standalone-encoded","examples":["cmp.or SrcL, SrcR<.sw, .uw, .not>, ->{t, u, Rd}"],"exceptions":["Reserved field encodings raise Fault_IllegalInstruction before effects; handler-specific arithmetic, memory, control-flow, system-register, and privilege faults follow the embedded normative ASL operation."],"field_contracts":{},"field_zero_meanings":{"RegDst":"Encoded zero names the architectural zero GPR.","SrcL":"Encoded zero names the architectural zero GPR.","SrcR":"Encoded zero names the architectural zero GPR.","SrcRType":"Encoded zero selects value zero of the right-source modifier selector."},"legality":["Every value in each unconstrained encoded field is assigned; constrained complements are reserved and reject before effects."],"memory_effects":["none"],"operands":[{"field":"RegDst","role":"absolute GPR destination"},{"field":"SrcL","role":"left absolute GPR source"},{"field":"SrcR","role":"right absolute GPR source"},{"field":"SrcRType","role":"right-source modifier selector"}],"ordering":["none"],"standalone_opcode":true,"state_effects":["CMP.OR - Combine scalar comparison results with the encoded logical operation.","After decode and legality checks, execute the normative ExecuteCompareLogical ASL handler; no other architectural state is modified."]},"depends_on":["PTO-BLOCK-MODEL-SCHEMA-PROFILE-ENCODING"],"id":"PTO-SCALAR-CMP-OR","mnemonic":"CMP.OR","summary":"CMP.OR - Combine scalar comparison results with the encoded logical operation.","surface":"scalar"}// PTO-REVIEW: {"review_method":"formal-definition-read","outcome":"FORMAL-COMPLETE","reviewed_fields":["assembly","encoding","defaults","operation","state","memory","ordering","faults","reserved"]}// DOC-BEGIN: decodereadonly func InstructionContractOperation_CMP_OR() => ScalarOperationbegin return ScalarOperation_CMP_OR;end;// DOC-END: decode// DOC-BEGIN: operationreadonly func InstructionContractHandler_CMP_OR() => ScalarSemanticHandlerbegin return ScalarHandler_ExecuteCompareLogical;end;
pure func InstructionContractCombinesWithOR_CMP_OR() => booleanbegin return TRUE;end;
pure func InstructionContractCompareLogicalValue_CMP_OR( left: Word, right: Word) => Wordbegin if InstructionContractCombinesWithOR_CMP_OR() then return left OR right; end; return left AND right;end;// DOC-END: operation
CMP.OR applies bitwise OR to two decoded scalar values and publishes whether the combined value is nonzero.
Sources are snapshotted before bitwise OR.
A zero combined word becomes XLEN zero; any nonzero word becomes XLEN one.
RegDst selects the encoded destination or discard behavior.SrcL supplies the left scalar source.SrcR supplies the right scalar source.SrcRType selects the right-source transformation.The canonical boolean is published through the encoded destination, then TPC advances by 4 bytes.
The instruction does not modify commit state and does not access memory or reservation state.
Encoding, reserved field values, and source availability are checked before destination, control, or TPC effects.
This example illustrates the current owner and does not create a second semantic definition.
cmp.or SrcL, SrcR<.sw, .uw, .not>, ->{t, u, Rd} publishes XLEN one when its condition is true and XLEN zero otherwise.
Bodies come from owning ASL. Dragging or buttons change only this page-session view order.
No NDF clause is attached to this unit.
10 matching entries
PTO-AVS-BRU-CMP-OR-BOUND-001tests/asl/scalar/bru/CMP.OR/scalar-bound-cmp-or-fields-001.asl55e90c3937ff50a59abcf199525ba3f3ff78764732f5c1f748c92542bcef7ac3PTO-AVS-BRU-CMP-OR-EXEC-001tests/asl/scalar/bru/CMP.OR/scalar-exec-cmp-or-direct-001.asl8307b5332a8589cdcfca03978db73f17a32bf219a1501eb4b0e1a91e7ff8aab8PTO-AVS-SCALAR-CMP-OR-DECODE-001tests/asl/scalar/bru/CMP.OR/scalar-decode-cmp-or-canonical-001.asl49df94d21b70bcf371c3e4c1770ac0ee88d38cf61e1f16f241f1dbe5c35c7545PTO-EVIDENCE-RELEASE-TRACEABILITYPTO-EVIDENCE-RELEASE-TRACEABILITYspec/evidence/release-traceability-readiness.jsonc7327021d39dc67ac5564bc55073b3870a397d79ac8d9648284d56e33bc14a3ePTO-EVIDENCE-INSTRUCTION-CONTRACT-CLOSUREPTO-EVIDENCE-INSTRUCTION-CONTRACT-CLOSUREspec/evidence/instruction-contract-closure.json3ef2bb62421c79dff8fa77a1c7983923b523244b8090812883ef81286ca8106aPTO-EVIDENCE-ARCHITECTURE-READINESSPTO-EVIDENCE-ARCHITECTURE-READINESSspec/evidence/architecture-readiness.json4b0b85199101251bea744e0f3591cc31906909dc80d5ab651c417a936036a004PTO-EVIDENCE-RELEASE-GATE-READINESSPTO-EVIDENCE-RELEASE-GATE-READINESSspec/evidence/release-gate-readiness.jsona0f4d2b6920c08981ea55fd8ef820708a40d4feb5402c5150e8e9ab532d84ce0PTO-EVIDENCE-RELEASE-MANIFESTPTO-EVIDENCE-RELEASE-MANIFESTspec/release-manifest.json1a64c109ed7a90351c41e2a418b3c0ebaf8ad975838986d2101385186b85c0d8Loading ADR-0027…
ADR-0027docs/status/decisions/0027-scalar-bru-totality-and-target-legality.md9289112d250e31f4222dcd27d20bda791be7a1b57764af7ed9b187e767b7acedLoading ADR-0059…
ADR-0059docs/status/decisions/0059-mnemonic-field-encoding-closure.mdf18d13f735cfaf9f2803c754c5818f4af33d1cc42c489f0d9ce060b07bb3a196{
"classification": [
"bru"
],
"documentation": "docs/scalar/bru/CMP.OR.md",
"id": "PTO-SCALAR-CMP-OR",
"instruction_contract": {
"artifact": "spec/evidence/instruction-contract-closure.json",
"mnemonic": "CMP.OR",
"ndf_clause": "PTO-INST-SCALAR-CMP-OR"
},
"mnemonic": "CMP.OR",
"readiness_subjects": [
"ADR-0027",
"ADR-0059"
],
"semantic_tests": [
"PTO-AVS-BRU-CMP-OR-BOUND-001",
"PTO-AVS-BRU-CMP-OR-EXEC-001"
],
"source": "asl/scalar/bru/CMP.OR.asl",
"surface": "scalar",
"tests": [
"PTO-AVS-BRU-CMP-OR-BOUND-001",
"PTO-AVS-BRU-CMP-OR-EXEC-001",
"PTO-AVS-SCALAR-CMP-OR-DECODE-001"
]
}0.58.5 · Release candidate7dc8b7e5b121d2b2499a2273bebff29e2cd86812193fe88cbb05f238ec478c14938a7407561a7362323ad0aef1920290b5cd2abfb061c109a1f7aebf4745928c2460b1cb65269b073162b70f6d23f398d9e677c6asl/scalar/bru/CMP.OR.aslasl/scalar/bru/CMP.OR.asl