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 disasmproject

2001 - present

David 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

0x0000-0x0FFF

0x1000-0x1FFF

0x2000-0x2FFF

0x3000-0x3FFF

0x4000-0x7FFF

0x8000-0x8FFF

0x9000-0x9FFF

0xA000-0xAFFF

0xB000-0xBFFF

0xC000-0xFFFF

Address Pac-Manpacman.6E

pacman.6F

pacman.6H

pacman.6J

Ram, Video, IO

unused

unused

unused

unused

unused

Ms.Pac-Man

Ram, Video, IO

u5 (Aux, encrypted)

u6 (encrypted)

unused

unused

"mspacmab"boot1

boot2

boot3

boot4

Ram, Video, IO

boot5

boot6

unused

unused

unused

u7 (encrypted)

Otto Hack

pacman.6E

pacman.6F

pacman.6H

pacman.6J

P1 - Pac Attract, GENCOMP logo

Comparison

P2 - Marquee Attract, Midway

P3

P1, P2 Graphics Roms

Pac-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/