What about MultiMiller? Did someone actually check what it does exactly?
IIRC, it just sets in pages 0 and 1 the same subslots than in pages 2 and 3. So it is some kind of "universal poke" that is executed after every BASIC command.
di ld a, (#FFFF) cpl and #F0h ld b, a rrca rrca rrca rrca or b ld (#FFFF), a ei ret
The cartridge was advertised as:
"Multimiller is an Msx-1 and Msx-2 operating system reconfigurator, allowing you to get 100% performance from your personal computer. Thus eliminating any hardware problems. Be ready to use all the software of the market from this moment, since you will be able to use the one of Msx-1 for Msx-2"
But what it basically does is a POKE -1,x
Here is the BASIC program of the cartridge:
10 DEFUSR=&H8100:A=USR(0):FOR X=1 TO 1000:NEXT 20 SCREEN 0:WIDTH 40:COLOR 15,4,4:KEYOFF:CLS 30 PRINT"MULTIMILLER" 40 PRINT"Copyright 1987 WALTHER MILLER" 60 PRINT"Ready" 70 DEFUSR=&HBA00:A=USR(0)
The asm routines draw a intro screen, verify that the code is run from ROM and patch the hook at #FF0C to run the "poke" after every BASIC command.
Cool Guillian 