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

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- 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
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tmerritt committed 2026-10-21 07:20:59 -04:00
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commit df11857075
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WIP.md
+6 -10
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@@ -1,6 +1,6 @@
# `_wip/` — the pre-promotion tier
**857 projects across 30 mapper folders, every one of them building
**856 projects across 30 mapper folders**, every one of them building
byte-identical to its original ROM.**
This file is the handoff for everything under `_wip/<MAPPER>/<Project>/`. The
@@ -18,7 +18,7 @@ project, under a folder named for the project's mapper:
_wip/
NROM/ 38 projects (mapper 0, plus one whose header byte 7 is ASCII)
MMC1/ 221 projects (mapper 1)
UNROM/ 98 projects (mapper 2)
UNROM/ 97 projects (mapper 2)
CNROM/ 58 projects (mapper 3)
MMC3/ 239 projects (mapper 4)
MMC5/ 10 projects (mapper 5)
@@ -199,7 +199,7 @@ disassembly work starts.
## 6. Inventory
All 857 projects, all **byte-identical for the whole ROM**.
All 856 projects, all **byte-identical for the whole ROM**.
### `_wip/CNROM/` — mapper 3 (58 projects)
| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
@@ -561,8 +561,6 @@ All 857 projects, all **byte-identical for the whole ROM**.
| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
| Mermaids of Atlantis (U) | 64 KB | 64 KB | Vertical | $8189 / $FF00 / $8036 | Pass 0 skeleton | |
### `_wip/MAPPER9/` — mapper 9 (2 projects)
| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
@@ -1102,9 +1100,8 @@ All 857 projects, all **byte-identical for the whole ROM**.
| Tag Team Wrestling (U) | 32 KB | 8 KB | Horizontal | $FFCD / $FD43 / $FD43 | Pass 0 skeleton | |
| U-Force Test Cartridge (U) | 32 KB | 8 KB | Vertical | $844C / $8000 / $8000 | Pass 0 skeleton | |
| Volleyball (U) | 32 KB | 8 KB | Vertical | $8053 / $8000 / $FFFF | Pass 0 skeleton | |
| Xevious (U) | 32 KB | 8 KB | Horizontal | $FC4E / $FAF6 / $FF1D | Pass 0 skeleton | |
### `_wip/UNROM/` — mapper 2 (98 projects)
### `_wip/UNROM/` — mapper 2 (97 projects)
| Project | PRG | CHR | Mirroring | Vectors (NMI / RESET / IRQ) | State | Notes |
|---------|-----|-----|-----------|------------------------------|-------|-------|
@@ -1205,8 +1202,7 @@ All 857 projects, all **byte-identical for the whole ROM**.
| Wall Street Kid (U) [a2] | 128 KB | none | Horizontal | $F95C / $C000 / $F9E2 | Pass 0 skeleton | 65536-byte footer |
| Wayne Gretzky Hockey (U) | 128 KB | none | Vertical | $C10A / $C000 / $C378 | Pass 0 skeleton | |
| Winter Games (U) | 128 KB | none | Horizontal | $06FB / $C040 / $E295 | Pass 0 skeleton | |
| Zanac (U) | 128 KB | none | Horizontal | $CE8D / $E7BF / $CEC4 | Pass 0 skeleton | |
All 857 projects, all **byte-identical for the whole ROM**.
All 856 projects, all **byte-identical for the whole ROM**.
---
@@ -1215,7 +1211,7 @@ All 857 projects, all **byte-identical for the whole ROM**.
### 7.1 Almost all of the tier is a banked mapper
Only 37 of the 857 are mapper 0, and only **two** have a PRG small enough to
Only 37 of the 856 are mapper 0, and only **two** have a PRG small enough to
sit at a single CPU address:
| PRG size | Projects |