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Sylpheed/tools/ppc-manual/forms/VX128_4.md
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chore(tools): adopt the PPC manual and a canary launcher that works anywhere
CONSOLIDATION.md Phase 6. Both lived untracked in the project root -- on one
disk, backed up by nothing.

  tools/ppc-manual/   393 files, 3.7 MB. 455 instructions, 350 family pages,
                      598 mnemonics resolvable through index.json, plus the
                      generator that produced them.
  tools/run-canary.sh the oracle launcher.

🔴 THE LAUNCHER WAS BROKEN IN TWO WAYS AND IS REWRITTEN, not copied:

  * it pointed at `xenia-rs/sylpheed.iso`, a SYMLINK. Wine cannot resolve one
    and says "path invalid", which reads as a corrupt image rather than a path
    problem -- it has cost a session before. It now points at the real file and
    warns if handed a symlink.
  * it hardcoded one machine's absolute paths, and named `xenia-rs`, which this
    consolidation retires. Now derived from the script's own location, with
    SYLPH_CANARY_BIN / SYLPH_ISO overrides and a check that each exists.

The standing constraints are in its header where someone will read them: one
emulator at a time, Canary runs MUTED, and never judge a crash or a hang from
a Bash-launched run -- a SIGKILL that looked like the binary was the editor's
process supervisor.

⚠️ The manual's GENERATOR reads the xenia-rs source tree, which is going away.
Its decoder now lives here as crates/sylpheed-ppc, so the generator must be
repointed before it is run again. Recorded in the README rather than left for
someone to discover; the manual's content is checked in and regenerates from
nothing implicitly.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-13 21:18:00 +02:00

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Form VX128_4 — VX128_4 — VMX128 with sub-opcode selector

Bit Layout

Bits Field Meaning
05 OPCD primary opcode (6)
610 VD128l destination low 5 bits
1115 IMM 5-bit immediate
1620 VB128l source B low 5 bits
2123 XO extended opcode
2425 z sub-operation selector
2829 VD128h destination high 2 bits
3031 VB128h source B high 2 bits

Instructions Using This Form

Mnemonic Opcode Group Description
vpkd3d128 0x18000610 vmx Vector128 Pack D3Dtype, Rotate Left Immediate and Mask Insert
vrlimi128 0x18000710 vmx Vector128 Rotate Left Immediate and Mask Insert