6bdbf89ebc
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>
36 lines
1.9 KiB
Markdown
36 lines
1.9 KiB
Markdown
# Form `VA` — VA — Vector Arithmetic (4-operand, madd-style)
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## Bit Layout
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| Bits | Field | Meaning |
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| --- | --- | --- |
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| 0–5 | `OPCD` | primary opcode (4) |
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| 6–10 | `VRT` | destination vector register |
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| 11–15 | `VRA` | source A |
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| 16–20 | `VRB` | source B |
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| 21–25 | `VRC` | source C / shift |
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| 26–31 | `XO` | extended opcode (6 bits) |
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## Instructions Using This Form
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<!-- GENERATED: BEGIN -->
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| Mnemonic | Opcode | Group | Description |
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| --- | --- | --- | --- |
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| [`vmhaddshs`](../vmx/vmhaddshs.md) | `0x10000020` | vmx | Vector Multiply-High and Add Signed Signed Half Word Saturate |
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| [`vmhraddshs`](../vmx/vmhraddshs.md) | `0x10000021` | vmx | Vector Multiply-High Round and Add Signed Signed Half Word Saturate |
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| [`vmladduhm`](../vmx/vmladduhm.md) | `0x10000022` | vmx | Vector Multiply-Low and Add Unsigned Half Word Modulo |
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| [`vmsumubm`](../vmx/vmsumubm.md) | `0x10000024` | vmx | Vector Multiply-Sum Unsigned Byte Modulo |
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| [`vmsummbm`](../vmx/vmsummbm.md) | `0x10000025` | vmx | Vector Multiply-Sum Mixed-Sign Byte Modulo |
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| [`vmsumuhm`](../vmx/vmsumuhm.md) | `0x10000026` | vmx | Vector Multiply-Sum Unsigned Half Word Modulo |
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| [`vmsumuhs`](../vmx/vmsumuhs.md) | `0x10000027` | vmx | Vector Multiply-Sum Unsigned Half Word Saturate |
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| [`vmsumshm`](../vmx/vmsumshm.md) | `0x10000028` | vmx | Vector Multiply-Sum Signed Half Word Modulo |
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| [`vmsumshs`](../vmx/vmsumshs.md) | `0x10000029` | vmx | Vector Multiply-Sum Signed Half Word Saturate |
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| [`vsel`](../vmx/vsel.md) | `0x1000002a` | vmx | Vector Conditional Select |
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| [`vperm`](../vmx/vperm.md) | `0x1000002b` | vmx | Vector Permute |
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| [`vsldoi`](../vmx/vsldoi.md) | `0x1000002c` | vmx | Vector Shift Left Double by Octet Immediate |
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| [`vmaddfp`](../vmx/vmaddfp.md) | `0x1000002e` | vmx | Vector Multiply-Add Floating Point |
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| [`vnmsubfp`](../vmx/vnmsubfp.md) | `0x1000002f` | vmx | Vector Negative Multiply-Subtract Floating Point |
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<!-- GENERATED: END -->
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