Memory Expansion
30-Jun-86 12:12:01
Sb: #24343-Memory Expansion
Fm: Dave Haynie/C128 Land 76703,2047
To: scott drysdale 72127,1510
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Even if you could get TAS operating on external RAM, would you really want to
use it? You'd have to tag any section of code using TAS for FASTMEM only,
which would limit you to running only on expanded machines. That's a problem
in several respects. You might get away with running on a A2000 (or whatever
the next one is going to be) if it has built-in FASTMEM, and of course on
current expanded systems. But then suppose an A3000 comes out with 2Megs of
memory in a 2Meg CHIPMEM address space. Then you're right back to running
only on expanded machines. There's certainly no real harm in designing a
board that does handle TAS, or at least acts as intelligently as possible
when given the instruction (i.e. it doesn't crash like an ST or a MAC), but I
wouldn't use the instruction in any program I write.