Browse Extensions

xthead-fmv

1.0.0.xsil package

by extensilica

T-Head XTheadFMv floating-point move helper (RV32 high-word transfer)

No confirmed encoding conflictsShares encoding space with 11 extension(s)
Show encoding relation details

mojo-v INFO

  • SHARED_CUSTOM_SPACE: both declare custom-0; shared custom space (no per-vendor allocation in RISC-V). Not a conflict on its own — composing both needs opcode remapping or selective enable.

xthead-ba INFO

  • SHARED_CUSTOM_SPACE: both declare custom-0; shared custom space (no per-vendor allocation in RISC-V). Not a conflict on its own — composing both needs opcode remapping or selective enable.

xthead-bb INFO

  • SHARED_CUSTOM_SPACE: both declare custom-0; shared custom space (no per-vendor allocation in RISC-V). Not a conflict on its own — composing both needs opcode remapping or selective enable.

xthead-bs INFO

  • SHARED_CUSTOM_SPACE: both declare custom-0; shared custom space (no per-vendor allocation in RISC-V). Not a conflict on its own — composing both needs opcode remapping or selective enable.

xthead-condmov INFO

  • SHARED_CUSTOM_SPACE: both declare custom-0; shared custom space (no per-vendor allocation in RISC-V). Not a conflict on its own — composing both needs opcode remapping or selective enable.

xthead-fmemidx INFO

  • SHARED_CUSTOM_SPACE: both declare custom-0; shared custom space (no per-vendor allocation in RISC-V). Not a conflict on its own — composing both needs opcode remapping or selective enable.

xthead-int INFO

  • SHARED_CUSTOM_SPACE: both declare custom-0; shared custom space (no per-vendor allocation in RISC-V). Not a conflict on its own — composing both needs opcode remapping or selective enable.

xthead-mac INFO

  • SHARED_CUSTOM_SPACE: both declare custom-0; shared custom space (no per-vendor allocation in RISC-V). Not a conflict on its own — composing both needs opcode remapping or selective enable.

xthead-mempair INFO

  • SHARED_CUSTOM_SPACE: both declare custom-0; shared custom space (no per-vendor allocation in RISC-V). Not a conflict on its own — composing both needs opcode remapping or selective enable.

xthead-sync INFO

  • SHARED_CUSTOM_SPACE: both declare custom-0; shared custom space (no per-vendor allocation in RISC-V). Not a conflict on its own — composing both needs opcode remapping or selective enable.

xthead-vdot INFO

  • SHARED_CUSTOM_SPACE: both declare custom-0; shared custom space (no per-vendor allocation in RISC-V). Not a conflict on its own — composing both needs opcode remapping or selective enable.

This versioned archive records the Extension's encoding, dependencies, provenance, documentation, and any simulator, toolchain, RTL, test, or hardware support declared by its maintainer.

Package metadata

Metadata is published by the package maintainer. Inspect the archive, upstream sources, and checksums before depending on declared support.

Required ISA
RV32IFD_Xtheadfmv
Declared support
spike
Toolchain
riscv32-unknown-elf · v14.2.0 (external)
Capabilities
ISAToolchain: externalSim: SpikeTestsRepro: host-dependententrytestEntry
Resolution
host-dependent
Archive checksum
sha256:c67cb2e741364236bdbb8ec497df13d74a156fa2fdbcd4b4a74388f9d08c4bb2
Payload checksum
sha256:0ea0b8b97dc3c37198d45b056d3b33d0d27e7938662085bd46ec500ac16dee43
Support metadata
{
  "spike": {
    "config": "sim/spike.yaml",
    "isa": "rv32gc_xtheadfmv",
    "mem": "256m",
    "priv": "msu",
    "status": "skeleton"
  }
}
Dependencies
{
  "tools": []
}

README

T-Head XTheadFMv floating-point move helper (RV32 high-word transfer)

Version History

VersionPublishedStatus
1.0.0latest
xsil install [email protected]
May 14, 2026active

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07-1307-2007-2708-0308-1008-11

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1.0.0
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