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Magnum One (Mid-American Digital) (Disc Manufacturing).iso
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WHATSNEW.116
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1990-12-21
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WHAT'S NEW IN VERSION 1.16
--------------------------
- If revision C or later of the Chips and Technologies 82C302 memory
controller chip is found, LASTBYTE automatically enables the "Fast
CAS precharge time" to eliminate the extra wait state when a read
cycle is immediately followed by a write cycle to the same bank.
NOTE: This capability was not provided in earlier versions
of the 82C302, and thus most CMOS configuration menus don't
give you the ability to enable this feature. It corresponds
to setting bits 5 and 4 of register 20 (hex) in the 82C302c;
this register does not exist prior to revision C. You can
determine which you have simply by checking the LASTBYTE.SYS
information screen. If it indicates "82C302" but not "82C302c",
then you may want to consider replacing the chip with the newer
version for a bit more performance.
- Improved the repeatability/reliability of the hardware signature
computation.
Please let me know if your PC reports "different hardware
detected - run LICENSE again" and you haven't changed your
configuration. I'll try to find out what's causing it and
fix it.
- Reduced the upper memory overhead of LASTBYTE.SYS from 2,704 to
1,840 bytes.
- Corrected some bugs in code that supports the following chips:
82C222 - From the CHIPS/250 PS/2 50/60 chipset
82C235 - The SCAT (tm) Single Chip AT VLSI chip
82C311 - From the CS8233 PEAK 386/AT CHIPSet (tm)
82C322 - From the CHIPS/280 PS/2 70/80 chipset
82C202 - From VLSI Technologies' PC/AT chipset
- Improved the handling of PCs with cache controllers, including a new
command line option "CACHE" to force such recognition.
- Improved the computation of memory bandwidth.