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Speccylator.LZX
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Speccylator
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Distribution_Notes
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1997-01-15
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Notes for the 1.0 distribution of the Speccylator
Three versions of the Speccylator program are included, all compiled
*without* the DEBUG option and *not* including debugging information
such as labels:
* `Speccylator'
Runs on MC68020 and compatible processors. Does full Z80
emulation. Needs at least 433 kByte RAM, of which about 43
kByte is "chip memory".
* `Speccylator-00'
Runs only on MC68000 or MC68008 processors (put otherwise,
it does not run on MC68010 and compatible processors). In
all other aspects it should be equal to the above version.
* `Speccylator-00q'
The "Quick-and-dirty" version. Like the `Speccylator-00'
program, it runs only on MC68000 or MC68008 processors, but
the executable program is almost 32 kByte smaller, and it
dynamically allocates 64 kByte RAM less than the normal
versions; in other words, it needs at least 337 kByte RAM.
This version does not include emulation of BCD flags,
cannot detect interrupts between iterations of Load and
Repeat instructions, and more importantly, does not protect
the ROM memory area from being written to, and cannot cope
with modified code (the term used in the widest possible
sense).
The speedup of these "unfeatures" is significant, but many
ZX Spectrum programs will not work. Do not use this program
for producing serious work in a ZX Spectrum environment,
since a crash can occur at any time.