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- NOTICE OF UNSUPPORTED CPU TYPE
- ------------------------------
-
- Everything in this software package requires an 80286 or 80386 processor
- running at a speed of at least 6 MHz. In order to provide the features of
- background playback and file reading on-the-fly, a lot of processing has to
- occur in a very short time period a lot of times per second. Few if any PC/XT
- machines using 8088/8086 processors will be fast enough. In tests I made,
- NONE of the four 8088-based machines tested were able to keep up. Voice
- output was slow, distorted, and erratic, or non-existent.
-
- I realize that there are still a lot of XT's out there, but the fact is that
- there are very few XT's (8088 CPU's) being bought as new machines. The price
- of 10 MHz AT clone motherboards is now so low that this is usually "bottom of
- the line" in desktop machines. Even portables are moving away from the 8088
- as a CPU.
-
- A decision was made (with some reluctance) to abandon all efforts to make
- this package work with 8088/8086 machines. Why have a 286 or 386 and yet not
- use its improved performance? All the programs included here use 286-specific
- instructions and therefore will not run on an 8088/8086 even if a fast enough
- one could be found. The routines RVOICE_INIT and PVOICE_INIT (see VOICEKIT.DOC
- and VPMOD.DOC) test for CPU type before doing anything else, and return an
- error code of 2 if an 8088 or 8086 is detected.
-
- - Alan D. Jones
-