Reclassify TSETFMATRIX / TSET_IMG2COL_* / TGET_SCALE_ADDR as micro instructions and remove them from tile docs

[zhoubot]

Problem

The current PTO ISA documentation still presents the following T* APIs as part of the tile instruction surface:

• TSETFMATRIX
• TSET_IMG2COL_RPT
• TSET_IMG2COL_PADDING
• TGET_SCALE_ADDR

That categorization is misleading at the API/semantic level.

These operations do not primarily describe tile payload transformation. They program or derive control/state used by later execution:

• TSETFMATRIX programs FMATRIX-related configuration state.
• TSET_IMG2COL_RPT programs IMG2COL repeat metadata.
• TSET_IMG2COL_PADDING programs IMG2COL padding metadata.
• TGET_SCALE_ADDR derives/binds an address relationship rather than performing tile arithmetic.

As a result, the tile-family docs overstate what the tile surface actually is, and PTO-AS / ISA taxonomy remains blurry.

Requested change

Reclassify these four operations into the micro-instruction surface and temporarily remove them from the tile instruction documentation.

This should be treated as a semantic/API taxonomy change, not just a wording tweak.

Scope

Reclassify

Move the semantic classification of:

• TSETFMATRIX
• TSET_IMG2COL_RPT
• TSET_IMG2COL_PADDING
• TGET_SCALE_ADDR

from tile-instruction docs into the micro-instruction docs.

Temporarily remove from tile docs

Until the micro-instruction placement is complete, remove these ops from tile-instruction taxonomies and tile-family summaries so the tile docs remain semantically clean.

Affected documentation areas

At minimum, review and update:

• docs/isa/instruction-surfaces/tile-instructions*.md
• docs/isa/instruction-families/tile-families*.md
• docs/isa/instruction-surfaces/README*.md
• docs/assembly/PTO-AS*.md
• docs/mkdocs/src/manual/07-instructions*.md
• docs/isa/manifest.yaml
• generated index / matrix outputs derived from the manifest
• the micro-instruction landing / group pages under docs/isa/scalar/ops/micro-instruction/

Acceptance criteria

• The tile instruction docs no longer classify these four operations as tile instructions.
• The micro-instruction docs explicitly include and explain these four operations.
• PTO-AS docs make the semantic family clear and do not imply that a T* name automatically belongs to the tile surface.
• docs/isa/manifest.yaml and generated family/index pages reflect the new classification.
• English and Chinese docs remain aligned.
• git diff --check passes.
• Manifest-derived doc generation/check scripts pass.

Notes

This issue is intentionally limited to these four operations. A broader semantic cleanup of the T* namespace may still be needed later, but that should be tracked separately.

[zhoubot]

Triage review (2026-05-08): this is not fully closed on current origin/main. The broad taxonomy work landed, but TGET_SCALE_ADDR still appears in docs/isa/manifest.yaml and docs/isa/tile/sync-and-config_zh.md under the tile docs.

Please keep this issue open until the remaining entries are either moved into the micro-instruction surface or explicitly documented as transitional. Acceptance should include the manifest, generated indexes, and both English/Chinese navigation.