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>
60 lines
3.7 KiB
Markdown
60 lines
3.7 KiB
Markdown
# Form `D` — D — Displacement (load/store and immediate ALU)
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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 |
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| 6–10 | `RT` | destination GPR (or RS when storing) |
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| 11–15 | `RA` | source GPR (0 ⇒ literal 0 for RA0 forms) |
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| 16–31 | `D/SI/UI` | 16-bit signed or unsigned immediate |
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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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| [`tdi`](../branch/tdi.md) | `0x08000000` | branch | Trap Doubleword Immediate |
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| [`twi`](../branch/twi.md) | `0x0c000000` | branch | Trap Word Immediate |
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| [`mulli`](../alu/mulli.md) | `0x1c000000` | integer | Multiply Low Immediate |
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| [`subficx`](../alu/subficx.md) | `0x20000000` | integer | Subtract From Immediate Carrying |
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| [`cmpli`](../alu/cmpli.md) | `0x28000000` | integer | Compare Logical Immediate |
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| [`cmpi`](../alu/cmpi.md) | `0x2c000000` | integer | Compare Immediate |
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| [`addic`](../alu/addic.md) | `0x30000000` | integer | Add Immediate Carrying |
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| [`addic.`](../alu/addicx.md) | `0x34000000` | integer | Add Immediate Carrying and Record |
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| [`addi`](../alu/addi.md) | `0x38000000` | integer | Add Immediate |
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| [`addis`](../alu/addis.md) | `0x3c000000` | integer | Add Immediate Shifted |
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| [`ori`](../alu/ori.md) | `0x60000000` | integer | OR Immediate |
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| [`oris`](../alu/oris.md) | `0x64000000` | integer | OR Immediate Shifted |
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| [`xori`](../alu/xori.md) | `0x68000000` | integer | XOR Immediate |
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| [`xoris`](../alu/xoris.md) | `0x6c000000` | integer | XOR Immediate Shifted |
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| [`andi.`](../alu/andix.md) | `0x70000000` | integer | AND Immediate |
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| [`andis.`](../alu/andisx.md) | `0x74000000` | integer | AND Immediate Shifted |
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| [`lwz`](../memory/lwz.md) | `0x80000000` | memory | Load Word and Zero |
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| [`lwzu`](../memory/lwz.md) | `0x84000000` | memory | Load Word and Zero with Update |
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| [`lbz`](../memory/lbz.md) | `0x88000000` | memory | Load Byte and Zero |
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| [`lbzu`](../memory/lbz.md) | `0x8c000000` | memory | Load Byte and Zero with Update |
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| [`stw`](../memory/stw.md) | `0x90000000` | memory | Store Word |
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| [`stwu`](../memory/stw.md) | `0x94000000` | memory | Store Word with Update |
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| [`stb`](../memory/stb.md) | `0x98000000` | memory | Store Byte |
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| [`stbu`](../memory/stb.md) | `0x9c000000` | memory | Store Byte with Update |
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| [`lhz`](../memory/lhz.md) | `0xa0000000` | memory | Load Half Word and Zero |
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| [`lhzu`](../memory/lhz.md) | `0xa4000000` | memory | Load Half Word and Zero with Update |
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| [`lha`](../memory/lha.md) | `0xa8000000` | memory | Load Half Word Algebraic |
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| [`lhau`](../memory/lha.md) | `0xac000000` | memory | Load Half Word Algebraic with Update |
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| [`sth`](../memory/sth.md) | `0xb0000000` | memory | Store Half Word |
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| [`sthu`](../memory/sth.md) | `0xb4000000` | memory | Store Half Word with Update |
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| [`lmw`](../memory/lmw.md) | `0xb8000000` | memory | Load Multiple Word |
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| [`stmw`](../memory/stmw.md) | `0xbc000000` | memory | Store Multiple Word |
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| [`lfs`](../memory/lfs.md) | `0xc0000000` | memory | Load Floating-Point Single |
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| [`lfsu`](../memory/lfs.md) | `0xc4000000` | memory | Load Floating-Point Single with Update |
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| [`lfd`](../memory/lfd.md) | `0xc8000000` | memory | Load Floating-Point Double |
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| [`lfdu`](../memory/lfd.md) | `0xcc000000` | memory | Load Floating-Point Double with Update |
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| [`stfs`](../memory/stfs.md) | `0xd0000000` | memory | Store Floating-Point Single |
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| [`stfsu`](../memory/stfs.md) | `0xd4000000` | memory | Store Floating-Point Single with Update |
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| [`stfd`](../memory/stfd.md) | `0xd8000000` | memory | Store Floating-Point Double |
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| [`stfdu`](../memory/stfd.md) | `0xdc000000` | memory | Store Floating-Point Double with Update |
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<!-- GENERATED: END -->
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