30 Mar
1999
30 Mar
'99
2:38 a.m.
Anyone have any idea what was/is the best bus design?
I'm thinking a stripped down Z-bus (without the M1 signal and etc). What
else should be on a bus besides:
ADDRESS
DATA
RD/WR
MEM/IO
BUS REQ
BUS ACK
INT
INT ACK
WAIT
HALT
RESET
CLOCK
----------------------------------------
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Move up to a REAL OS...
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####/ / / / / / / / / / / / | /###
###/ /__ / / / / / / / /_/ / / |####
##/____/ /_/ /_/ /_/ /_____/ /_/|_|####
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30 Mar
30 Mar
3:04 a.m.
Use the signals for ISA-8bit. Why boards are common and cheap to free.
Generally the the ISA signal set are a good compromize and are easily
generated by most micros.
On Tue, 30 Mar 1999, Arfon Gryffydd wrote:
Anyone have any idea what was/is the best bus design?
I'm thinking a stripped down Z-bus (without the M1 signal and etc). What
else should be on a bus besides:
ADDRESS
DATA
RD/WR
MEM/IO
BUS REQ
BUS ACK
INT
INT ACK
WAIT
HALT
RESET
CLOCK
----------------------------------------
Tired of Micro$oft???
Move up to a REAL OS...
######__ __ ____ __ __ _ __ #
#####/ / / / / __ | / / / / | |/ /##
####/ / / / / / / / / / / / | /###
###/ /__ / / / / / / / /_/ / / |####
##/____/ /_/ /_/ /_/ /_____/ /_/|_|####
# ######
("LINUX" for those of you
without fixed-width fonts)
----------------------------------------
Be a Slacker! http://www.slackware.com
Slackware Mailing List:
http://www.digitalslackers.net/linux/list.html
1 Apr
1 Apr
12:21 a.m.
I'm thinking a stripped down Z-bus (without the M1
signal and etc). What
else should be on a bus besides:
Maybe take a look at the Z380 Bus - again a design to include
the best ideas of two worlds (like the Z80 has been).
Gruss
H.
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Ich denke, also bin ich, also gut
HRK
1:08 a.m.
New subject: Computer busses.... (& Z-380)
At 02:22 PM 4/1/99 +1, you wrote:
I've got 4 Z380s!! I want to put together a parallel processor machine
with a cool front panel of LEDs and switches.... I don't care for the
Z380's extra pins like the Low address pin, medium address pin and hig
address pins.
Do I really need to connect the M1 pin to anything? I mean why would I need
to insert wait states if the memory is faster than the processor?
Explain something to me... On a reception of an INT signal, the processor
jumps to a set memory location and starts executing the code. Right? What
is a vectored interrupt (it's been a LONG time since I wired uPs and I
can't remember.)?
----------------------------------------
Tired of Micro$oft???
Move up to a REAL OS...
######__ __ ____ __ __ _ __ #
#####/ / / / / __ | / / / / | |/ /##
####/ / / / / / / / / / / / | /###
###/ /__ / / / / / / / /_/ / / |####
##/____/ /_/ /_/ /_/ /_____/ /_/|_|####
# ######
("LINUX" for those of you
without fixed-width fonts)
----------------------------------------
Be a Slacker! http://www.slackware.com
Slackware Mailing List:
http://www.digitalslackers.net/linux/list.html
I'm thinking a stripped down Z-bus (without
the M1 signal and etc). What
else should be on a bus besides:
Maybe take a look at the Z380 Bus - again a design to include
the best ideas of two worlds (like the Z80 has been).
9402
days inactive
9404
days old
3 comments
3 participants
participants (3)
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allisonp＠world.std.com -
arfonrg＠texas.net -
Hans.Franke＠mch20.sbs.de