Meridian docs · revised 2026-10-13 · Windows installer

Windows 10 / 11 · x64

MeridianPS5 emulator Download

LOverview · revised 2026-10-13

Lexicon

The vocabulary shelf. Two terms defined precisely; every other page cites them.

Section
Overview
Host
Windows 10 / 11, x64
Revised
2026-10-13
White DualSense controller resting on top of a PlayStation 5 console.
Fig. L1Overview: LexiconMeridian

01At a glance

Scope
Terms used across Protocol and Reference
Style
One term, one definition, no synonyms
Entries
PUP, RDNA2/SPIR-V
Use
Cite these; do not redefine inline

02Entries

System software PUP defines the official firmware file: what it is, where it comes from, and how Meridian verifies it.

RDNA2 and SPIR-V defines the GPU translation vocabulary: console architecture in, Vulkan pipelines out.

Both entries assume the free build from Download Meridian and owned dumps — own your library, 400+ titles indexed.

03Convention

  • PUP always means Sony's official PS5UPDATE.PUP. Patched or partial files are not PUPs in this docs set.
  • SPIR-V always means compiled Vulkan pipelines in Meridian's per-title cache.
  • Stable, Beta, Test always mean Status definitions — never colloquial stability.

04Questions

Q.01Why does Meridian define so few terms?

Few terms carry the whole docs set. Defining two precisely beats glossing twenty loosely.

Q.02Where are Stable/Beta/Test defined?

In Status definitions, cited — not duplicated — from here.

Q.03Can a PUP be modified?

Not for Meridian. Verification rejects anything but the official file — see the PUP entry.