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The Roland option requires a MPU-401 with intelligent mode. Sound Blaster / Adlib Card (or compatibles).When running the installer (INSTALL.EXE), four music card options are offered DOSBox-X is the only emulator which has a special machine=mcga mode. However the MCGA video mode is supported on VGA adapters, so any PC with a VGA adapter can normally run either EGA or MCGA mode. MCGA was only supported as an integrated video adapter on the IBM PS/2 Models 25 & 30, which do not have EGA backward compatibility. When the IBM PS/2 option is selected, the game will technically start in a 256 colour MCGA video mode, but will emulate a 16 colour EGA display. Regardless of the graphic adapter selected, the game will render in only 16 colours.

When running the installer (INSTALL.EXE), two graphic adapter options are offered Note: For the above command-line options to work the AGI interpreter must be v2.4xx or later. ScummVM does not have a Tandy render mode, but visually this will look the same as the EGA mode. This is the default behaviour with DOSBox when machine=tandy is set. This is the default mode on an IBM PCjr or Tandy 1000 computer. ScummVM instead has only a Hercules Green and a Hercules Amber render mode. DOSBox will by default simulate a Black and White monitor, but you can cycle between Amber, Green and BW with F11. This is the default behaviour with DOSBox when machine=hercules is set. This is the default mode when a Hercules adapter is detected. This is the default behaviour with DOSBox or ScummVM. This is the default mode when an EGA or VGA adapter is detected. In ScummVM this mode can be set by setting render mode to CGA.

Instead start DOSBox normally without setting the machine parameter and start the game with the -R parameter to force CGA RGBI mode. To emulate this mode in DOSBox you must NOT set machine=cga, as by default DOSBox will emulate a Composite monitor. This is the default CGA mode most people would have seen originally. This is the default behaviour with DOSBox when machine=cga is set. The 1987 AGI version for DOS supports the following video modes.

This is an experimental patch for Sierra's old AGI games, to makes them play three voice music and sound effects via a Adlib or Soundblaster compatible card.