Entry 173

"What volumes 2 to 4 add: the code no carried name covers"

2026-09-26disc

Filestools/voldiff.pydocs/disc/volumes.mdGAPS.md

With Infection's combat, dungeons and story playable, this is the first look at what the other three volumes need beyond it. The later executables are stripped, but tools/xfer.py carried Infection's names onto them (worklogs 20-25). Code that no carried name covers is either new or compiled too differently to be matched. docs/disc/volumes.md, "What the later volumes' code adds", has the tables.

The tool. tools/voldiff.py gaps lists, per section, how much text the names cover and the stretches between named functions. look prints the strings a stretch materialises (the lui/addiu pairs the disassembler tracks; the stripped files have no relocations) and the named functions it calls. On Infection only main's fonts show, which is the check that the measure means something.

What it found:

• Mutation is Infection plus little: 3.5% of GCMN.PRG and about 100 KB of main have no name.
  • The new streams' effects (str0710e and on: raster noise, buffer sampling).
  • The event engine's new instructions, about 13 KB.
  • The Grunty race (PG_RACE, town06).
  • A new menu.
• Outbreak and Quarantine show a fifth of GCMN.PRG unnamed. Part of that is Infection's code under the new compiler settings: the enemy races show up there, ccEnemyL's type 3 among them. The new parts:
  • Kyvia's fights, 155 KB.
  • The Root Towns 02-05 and the party of 21, 69 KB.
  • The other event areas, 45 KB.
  • Quarantine's staff roll and hacking logos.

GAPS.md's "After Infection" is now that list, with the gaps it already named (type-32 rooms, warps, the save conversion).