Software:demoscene:Scroll Land by TSI (1991) - Wengier/dosbox-x-wiki GitHub Wiki

1991 demoscene entry.

Demo description

A demo that plays music in a loop with cue points combined with color palette cycling effects to scroll text messages. If music is playing, additional color palette work is used to flash white text to the beat of the music.

Recommended DOSBox-X configuration

[dosbox]
memsize=1

[cpu]
core=normal
cputype=386
cycles=4000

[sblaster]
sbtype=sbpro2
sbbase=220
irq=3
dma=1

Sound Blaster support oddity

This demo appears to use undocumented Sound Blaster DSP commands 0xE2 (DMA identification), 0xE4 (write test register), and 0xE8 (read test register) in addition to 0xE0 (SB2.0 identification) and 0xE1 (Get DSP version).

For reasons unknown at this time, it also appears to assume the Sound Blaster is on IRQ 3.

Problems

This demo appears to have a problem exiting back to DOS. Hitting space only causes the demo to freeze (but the music keeps going).

More information

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