HP 200LX with S2P GM MIDI synth plays Leisure Suit Larry 3

Описание: The HP 200LX is an MS-DOS Palmtop PC from the early 90's.

The Serdaco S2P GM synth is a full General MIDI compatible synthesizer for a PC parallel port.
The S2P is very useful for users of older systems which lack expansion slots for sound or MIDI cards, such as old laptops, palmtops and exotic PCs which cannot be expanded but have a parallel / printer port.
Since this generation of Sierra games was developed for Roland MT-32 and compatible
MIDI synthesizers such as the LAPC-1 and CM-32/64 modules, which differ in terms of instrument sounds and banks compared to the newer GM MIDI standard implemented in the S2P, the instruments sound a bit different in this video than with a real MT-32 sound module or card.
This is because the GM driver tries to map the MT-32 instruments to similar sounding GM instruments of the S2P synth as best as possible, but it's not always perfect, some instruments sound slightly different and sometimes the volume of certain instruments is a bit off.
Note: There is a small amount of noise in the audio signal, which originates from the headphone amplifier in my Logitech speakers, the sound coming out of the S2P doesn't have this amount of noise.

Leisure Suit Larry III was a popular point and click adventure game released in 1989 for MS-DOS computers and various other platforms.

The HP 200LX palmtop is an IBM PC/XT compatible MS-DOS system with a 16-bit 80186 CPU and CGA graphics system-on-a-chip, a serial port and a 16-bit PCMCIA expansion slot which in the video contains the Trans Digital PCMCIA parallel port card.
The card adds the required LPT1 port to connect to palmtop the OPL3LPT sound board.


The S2P sound board is being driven by a modified version of the RAVI GM.DRV driver for the S2P for SCI0 generation Sierra Games, available here:
https://github.com/pdewacht/s2ptools/...

You can purchase your very own S2P GM MIDI sound board here:
https://www.serdashop.com/S2P


Note: This 200LX as been upgraded to a 16MHz CPU clock speed (double the standard 8MHz), and has an additional 4MB of memory fitted, for a total of 5MB RAM memory.
(If you own an HP200LX and are interested in upgrading it, contact me and I can provide you with the necessary information to get started)


Special thanks to:

Peter De Wachter (for the initial modification of the GM driver)
Eric Weidenbacher (for helping debug the GM driver on 8086/88 and 80186 CPUs)
Jim Leonard (for fixing an important bug that prevented the driver from working on pre-286 CPUs)
Ravi Iyengar (for developing the original GM driver)