From Ms.Pac-ManTo Crazy Otto

Scott Lawrence

BarCamp spring 2014

Steve Golson"From Crazy Otto to Ms.Pac-

Man"PAX 2012, MIT 2014

MultiPac (MAME)AGE, Turaco

PacNameGame Hacks

mspac disasmproject2001 - presentDavid CaldwellDon HodgesFred KMarcel SilviusMark SpaethDave WidelFrederic VecovenM.A.B. ViGaSoCo

MPDMsPac

TimeMagazine

FirstAttempt

John's Arcade (John Jacobsen)PAX 2010

Golson 2012 Pt.2

Golson 2012 Pt.1

Animation Rosetta Stone

The Otto Project

• P1 - Pac-Man attract, GENCOMP logo

• P2 - Marquee attract, Midway

• P3 - Midway v2

• P4 - Super Pac-Man (Ghosts/Monsters)

• P5 - Pac-Woman (Red Hair)

• PZ - Multigame with menu

Compatibility

0x0000-0x0FFF0x1000-0x1FFF0x2000-0x2FFF0x3000-0x3FFF0x4000-0x7FFF0x8000-0x8FFF0x9000-0x9FFF0xA000-0xAFFF0xB000-0xBFFF0xC000-0xFFFF

Address Pac-Manpacman.6Epacman.6Fpacman.6Hpacman.6J

Ram, Video, IOunusedunusedunusedunusedunused

Ms.Pac-Man

Ram, Video, IOu5 (Aux,

encrypted)u6 (encrypted)

unused

unused

"mspacmab"boot1boot2boot3boot4

Ram, Video, IOboot5boot6

unusedunusedunused

u7 (encrypted)

Otto Hack

pacman.6Epacman.6Fpacman.6Hpacman.6J

P1 - Pac Attract, GENCOMP logo

Comparison

P2 - Marquee Attract, Midway

P3

P1, P2 Graphics RomsPac-Man

P1, PZ

P2, P3

Ms.Pac-Man

P4 - Super Pac-Man

P4 (Super Pac-Man, Monsters)Pac-Man

P4

Ms.Pac-Man

P5 - Pac Woman

P5 (Pac-Woman)Pac-Man

P5

Ms.Pac-Man

GCC

P5 - Pac Woman (detail)

PZ - Multi w/ Menu

P1 P2 P3 P4

Tools• Program ROMs

• asz80 (.asm)• aslink (.asm -> .ihx, .lst)• genroms (.ihx -> 6e 6f 6h 6j / 0000.bin 8000.bin)

• Graphics ROMs• turaco in dosbox (.5e .5f)

• Testing• xmame 0.77.1 (Nov 3 2007) (w/2-ROM driver)• xmamed (debugger)

• Repo• bleu-romtools (google code)• GameDocs (github)

Demos...

Links• Presentation materials / Yorgle.org

• http://yorgle.org/CrazyOtto• Steve Golson's presentation materials

• http://www.trilobyte.com/papers/

• "From Crazy Otto To Ms.Pac-Man" (Steve Golson)

• PAX 2012 Part 1 https://www.youtube.com/watch?v=iQRHssuZCVo

• PAX 2012 Part 2 https://www.youtube.com/watch?v=Rg6lQyzF1Jo

• MIT 2014 https://www.youtube.com/watch?v=HlopaTBDYuo

• Ms Pac Disasm

• https://github.com/BleuLlama/GameDocs

• AGE/Turaco/tools (Me, Ivan Mackintosh)

• https://code.google.com/p/bleu-romtools/