Index of /vug_bbs/rbbs
Name Last modified Size Description
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Parent Directory 22-Dec-2003 10:19 -
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111README 30-Jul-1993 18:19 7k
1_NOTICE 30-Jul-1993 18:19 1k
3044H.ASC 30-Jul-1993 18:19 103k
4043E.ASC 30-Jul-1993 18:19 102k
8565G.ASC 30-Jul-1993 18:19 11k
ACRONYM.TXT 30-Jul-1993 18:19 12k
AGENFA89.TXT 30-Jul-1993 18:19 15k
ANALOG.TXT 30-Jul-1993 18:19 7k
ARMSTRON.V 30-Jul-1993 18:19 40k
BASICDEF.VHD 30-Jul-1993 18:19 30k
BASIC_TE.VHD 30-Jul-1993 18:19 5k
BENCHMAR.VHD 30-Jul-1993 18:19 3k
BULLET 30-Jul-1993 18:19 1k
BULLET1 30-Jul-1993 18:19 2k
BULLET2 30-Jul-1993 18:19 2k
BULLET3 30-Jul-1993 18:19 4k
BULLET4 30-Jul-1993 18:19 1k
BULLET5 30-Jul-1993 18:19 1k
BULLET6 30-Jul-1993 18:19 1k
COMMACRO.TXT 30-Jul-1993 18:19 18k
COMMANDS.CMD 30-Jul-1993 18:19 1k
COMPONEN.VHD 30-Jul-1993 18:19 11k
DESC_BBS.TXT 30-Jul-1993 18:19 4k
DID11MAY.TXT 30-Jul-1993 18:19 15k
DIGV1N1.TXT 30-Jul-1993 18:19 1k
DIGV1N2.TXT 30-Jul-1993 18:19 11k
DIGV2N1.TXT 30-Jul-1993 18:19 6k
FPA_FILE.VEC 30-Jul-1993 18:19 19k
FPA_FILE.VHD 30-Jul-1993 18:19 55k
I80386.VHD 30-Jul-1993 18:19 58k
IEEE-KEY.TXT 30-Jul-1993 18:19 1k
IEEE-RAW.TXT 30-Jul-1993 18:19 18k
IEEE-STD.TXT 30-Jul-1993 18:19 5k
IEEE-SYN.TXT 30-Jul-1993 18:19 20k
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MASTER.DIR 30-Jul-1993 18:19 7k
MH59.TXT 30-Jul-1993 18:19 4k
MILIACRO.TXT 30-Jul-1993 18:19 14k
MS1840B.TXT 30-Jul-1993 18:19 1k
MS454L.TXT 30-Jul-1993 18:19 2k
NEWSDEC8.TXT 30-Jul-1993 18:19 10k
NEWSFEB9.TXT 30-Jul-1993 18:19 3k
NEWSJUL9.TXT 30-Jul-1993 18:19 8k
NEW_ENTI.VHD 30-Jul-1993 18:19 42k
ORDERSSI.TXT 30-Jul-1993 18:19 1k
QMLTXT.ASC 30-Jul-1993 18:19 44k
QPLUPDT2.ASC 30-Jul-1993 18:19 28k
RESULTS.TXT 30-Jul-1993 18:19 56k
RFILE_BE.VHD 30-Jul-1993 18:19 21k
STDLOGIC.VHD 30-Jul-1993 18:19 91k
STDPKG.VHD 30-Jul-1993 18:19 36k
STD_CMOS.VHD 30-Jul-1993 18:19 3k
STD_ECL.VHD 30-Jul-1993 18:19 3k
STD_NMOS.VHD 30-Jul-1993 18:19 3k
STD_TTL.VHD 30-Jul-1993 18:19 3k
TIMING.VHD 30-Jul-1993 18:19 1k
TYPES.VHD 30-Jul-1993 18:19 3k
TYPE_BOD.VHD 30-Jul-1993 18:19 8k
V1SUMM1.DOC 30-Jul-1993 18:19 42k
V1SUMM2.DOC 30-Jul-1993 18:19 27k
V2SUMM1.DOC 30-Jul-1993 18:19 55k
V2SUMM2.DOC 30-Jul-1993 18:19 51k
V3SUMM1.DOC 30-Jul-1993 18:19 58k
VER_STD.VHD 30-Jul-1993 18:19 326k
VER_STDG.VHD 30-Jul-1993 18:19 37k
VHDLSSI.TXT 30-Jul-1993 18:19 1k
VHDL_STY.SHA 30-Jul-1993 18:19 157k
VREADME.TXT 30-Jul-1993 18:19 1k
WAVES.DOC 30-Jul-1993 18:19 86k
ZCOMPONE.VHD 30-Jul-1993 18:19 13k
ZENTITIE.VHD 30-Jul-1993 18:19 64k
ZTYPE.VHD 30-Jul-1993 18:19 31k
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compdes/ 22-Dec-2003 10:19 -
This file contains notes on library Portable. It is kept by date, most recent
entries first. Use the GRIPE command to ask questions or comment on library
VDEG_Portable.
21-Aug-1989 Paul Menchini
----------- -------------
I've added a clock port to the JKFF component in VDEG_Portable.Components, as
it (erroneously) did not have one. The port is called "Clk" and appears immed-
iately prior to the "Clr" port.
27-Jul-1989 Paul Menchini
----------- -------------
Per the decision at the VDEG meeting earlier this week, I've changed the type
of all input ports of the components in package VDEG_Portable.Components to
scalars, except for those components that are generic in their number of
inputs. I've also improved the formatting by adding explicit modes to all
generics and using tabs to align the generic and port lists of all components.
07-Jun-1989 Paul Menchini
----------- -------------
I've done some further review and made several small changes. In the package
body for the Types package, I've changed statements of the form "if <condition>
then exit; end if;" to "exit when <condition>;". In the Components package,
I've fixed mode errors on the flip flops, and changed all generics of type
Delay to be of type Time. Since package Timing gives ways of supplying min-
nom-max information, the type Delay us unnecessary.
12-May-1989 Paul Menchini
----------- -------------
Library Portable consists of the files TYPES.VHDL, TYPES-BODY.VHDL,
COMPONENTS.VHDL, and TIMING.VHDL. These files are as agreed to by the
attendees of the 9-10 May VDEG meeting, with the following exceptions:
1. The package Vector_Comp_Ops and its corresponding body are not included
in library Portable. After rethinking over the whole issue of
comparison operators, I now agree with the position of those who wish
to include the comparison operators "<", "<=", ">", and ">=" in
numbering-system-specific packages and not in the basic types package.
I am keeping the definitions of these operations around in case we
change our minds, but have not included them in any of the posted
packages.
2. In keeping with the above change, I've deleted the same operators
returning Logic4 from package Types and its corresponding body.
3. The first line of all operators on Logic4 arguments now assert that
neither of their inputs are equal to 'Z'. During the VDEG meeting, it
was asserted that these functions do an implicit Sense, but the
implicit second parameter is always 'X'; I feel it's much better, when
using these functions, to do an explicit Sense, hence the prohibition
on 'Z'. Note that, since the Vector4 operations use the Logic4
operations, they also disallow 'Z'.
4. One of the suggestions made during the VASG is that the "=" and "/="
operations having Logic4 arguments and returning a Logic4 result be
defined in terms of xor. We decided that this wasn't necessarily a
good thing to do, but I did decide to define "/=" in terms of "="; I
also defined "nand" in terms of "and", and "nor" in terms of "or" while
I was at it.
5. The Sense functions working on vectors now use an alias to normalize
the input vector rather than maintaining two indices (one for the
input, one for the result vector).
6. I changed the name of the "DataOut" port of the ROM component in
package Components. It now has the name "Data".