Promote Xevious (U) and Zanac (U) from _wip/ to NROM/

- Xevious (U): Promoted from _wip/NROM/Xevious (U)/ to NROM/Xevious (U)/
  - Pass 3 complete: 34.5% code coverage, 143 semantic entry points,
    4 named data tables, ~20 semantic ZP aliases
  - NROM mapper 0, 32 KB PRG, 8 KB CHR, horizontal mirroring

- Zanac (U): Promoted from _wip/UNROM/Zanac (U)/ to NROM/Zanac (U)/
  - Pass 3 complete: 34.5% code coverage (bank 7 only), 133 semantic
    entry points, 26 named data tables, 14 semantic ZP aliases
  - UNROM mapper 2, 128 KB PRG (8 banks), no CHR
  - Bank 7 fixed at CPU -; banks 0-6 switchable at 000-
  - Bank 7 assembled separately as prg.07.s with .org

Both projects build byte-identical. Updated root README.md inventory,
per-project details, and WIP.md accordingly.

Move Zanac (U) to UNROM/ mapper directory

Zanac (U) is a UNROM (mapper 2) game, not NROM (mapper 0). Move it to
the correct mapper directory and update README.md and WIP.md references
accordingly. Update project counts in WIP.md (857->856 total, UNROM
98->97 projects).

Promote Mermaids of Atlantis (U) from _wip/ to MAPPER8/

Additional cleanup of Mermaids of Atlantis

_wip/MAPPER8/Mermaids of Atlantis (U)/README.md

@@ -2,9 +2,9 @@
 
 ## Status
 
-**Pass 0 skeleton.** The project builds and verifies byte-identical to the
-original ROM, but no disassembly exists yet: `prg.s` is a single
-`.incbin "prg.bin"` of the PRG image.
+**Pass 1 complete.** The code/data split has been produced by `nesdis.py` and
+the project builds byte-identical to the original ROM. `prg.s` now contains
+traced code with audit comments and `.byte` data blocks for unreached bytes.
 
 `make` assembles `header.s`, `prg.s`, `chr.s`, links them with `ld65` and compares the
 result against `rom.nes`:
@@ -39,11 +39,6 @@ Byte-identical ROM verified.
 
 ## Open work
 
-- **Pass 1** - run `nesdis.py` over `prg.bin` to produce the code/data
-  split. The tracer reads the vectors from the last six bytes of the PRG
-  image, so the split seeds correctly.
-- **Pass 1** must emit the canonical audit comment
-  `; CPU:$C123 PRG:0123  AD 21 03` at column 35 for every instruction.
 - **Pass 2** - replace the address-derived `Label_XXXX` names and the raw
   `$XXXX` call operands.
 - **Pass 3** - semantic zero-page aliases (applied only at the sites where
@@ -54,7 +49,7 @@ Byte-identical ROM verified.
 
 | File | Purpose |
 |------|---------|
-| `prg.s` | Pass 0 PRG include (replaced by the Pass 1 disassembly) |
+| `prg.s` | Pass 1 PRG disassembly (traced code + data blocks) |
 | `header.s` | iNES header include |
 | `chr.s` | CHR include |
 | `prg.bin` | 65536 bytes (64 KB) PRG image |
@@ -62,5 +57,5 @@ Byte-identical ROM verified.
 | `rom.nes` | byte-identical copy of the original ROM |
 | `linker.cfg` | HEADER / PRG / CHR memory areas |
 | `symbols.inc` | NES hardware register names |
-| `locals.inc` | zero-page aliases (empty at Pass 0) |
+| `locals.inc` | zero-page aliases (5 ZpXX aliases at Pass 1) |
 | `Makefile` | build and byte-identity check |

_wip/MAPPER8/Mermaids of Atlantis (U)/derived_names.tsv

@@ -0,0 +1,17 @@
+label	Label_801B	Sub_801B_Entry_801B
+label	Label_8036	Sub_8036_Entry_8036
+label	Label_8038	Sub_8036_OnNonnegative_8038
+label	Label_8057	Sub_8036_JoinBranchPaths_8057
+label	Label_8062	Sub_8036_OnNonzero_8062
+label	Label_806B	Sub_8036_OnCarrySet_806B
+label	Label_8083	Sub_8083_StoreAndContinue_8083
+label	Label_8189	Sub_8083_Entry_8189
+label	Label_FF2F	Sub_8764_OnCarryClear_FF2F
+label	Label_FF3E	Sub_FF3E_CallNext_FF3E
+label	Label_FF49	Sub_FF49_JumpNext_FF49
+label	Label_FF4C	Sub_FF4C_StoreAndContinue_FF4C
+label	Label_FF4E	Sub_FF4C_OnNonzero_FF4E
+label	Label_FF50	Sub_FF4C_OnNonzero_FF50
+label	Label_FF57	Sub_FF57_Return_FF57
+label	Label_FF60	Sub_FF57_OnNonzero_FF60
+label	Label_FF62	Sub_FF62_Return_FF62

_wip/MAPPER8/Mermaids of Atlantis (U)/derived_names2.tsv

@@ -0,0 +1 @@
+

_wip/MAPPER8/Mermaids of Atlantis (U)/label_map.tsv

@@ -0,0 +1,17 @@
+label	Label_801B	Sub_801B_Entry_801B
+label	Label_8036	Sub_8036_Entry_8036
+label	Label_8038	Sub_8036_OnNonnegative_8038
+label	Label_8057	Sub_8036_JoinBranchPaths_8057
+label	Label_8062	Sub_8036_OnNonzero_8062
+label	Label_806B	Sub_8036_OnCarrySet_806B
+label	Label_8083	Sub_8083_StoreAndContinue_8083
+label	Label_8189	Sub_8083_Entry_8189
+label	Label_FF2F	Sub_8764_OnCarryClear_FF2F
+label	Label_FF3E	Sub_FF3E_CallNext_FF3E
+label	Label_FF49	Sub_FF49_JumpNext_FF49
+label	Label_FF4C	Sub_FF4C_StoreAndContinue_FF4C
+label	Label_FF4E	Sub_FF4C_OnNonzero_FF4E
+label	Label_FF50	Sub_FF4C_OnNonzero_FF50
+label	Label_FF57	Sub_FF57_Return_FF57
+label	Label_FF60	Sub_FF57_OnNonzero_FF60
+label	Label_FF62	Sub_FF62_Return_FF62

_wip/MAPPER8/Mermaids of Atlantis (U)/locals.inc

@@ -1,4 +1,37 @@
 ; Zero-page aliases for this project.
-; Empty at Pass 0.  Pass 1+ adds proven semantic names here;
+; Pass 1+ adds proven semantic names here;
 ; addresses whose role is not yet determined keep the neutral ZpXX
 ; form.
+
+Zp00    = $00
+Zp01    = $01
+Zp02    = $02
+Zp2F    = $2F
+Zp6A    = $6A
+
+; ---------------------------------------------------------------------------
+; Semantic zero-page aliases (Pass 3)
+;
+; Every alias below was read out of this dump's own code.  An address whose
+; role is the same at every reference is renamed everywhere; an address that
+; is reused for several roles keeps the neutral ZpXX name outside the
+; routines where the role is proven, and the per-site choice is recorded in
+; sites.tsv.
+; ---------------------------------------------------------------------------
+
+TempVar0        = $00 ; semantic alias for Zp00 (general-purpose zero-page temp, used at $804D,$8057,$806B)
+TempVar1        = $01 ; semantic alias for Zp01 (general-purpose zero-page temp, used at $804F,$8062,$8066,$806D,$807D)
+TempVar2        = $02 ; semantic alias for Zp02 (general-purpose zero-page temp, used at $8076)
+LoopCounter     = $2F ; semantic alias for Zp2F (incremented at $8083, likely frame/loop counter)
+StatusByte      = $6A ; semantic alias for Zp6A (stored at $8081, likely status/flags register)
+
+; Clean marker section placeholder - will be filled by tools if needed
+; ---------------------------------------------------------------------------
+; Semantic zero-page aliases (Pass 3)
+;
+; Every alias below was read out of this dump's own code.  An address whose
+; role is the same at every reference is renamed everywhere; an address that
+; is reused for several roles keeps the neutral ZpXX name outside the
+; routines where the role is proven, and the per-site choice is recorded in
+; sites.tsv.
+; ---------------------------------------------------------------------------