Difference between revisions of "VAX-11/780"

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[[SIMH]] is the only known emulator for the 11/780.  Simh can address up to 128Mb of ram emulating an 11/780.  Also the following periphals are emulated:
 
[[SIMH]] is the only known emulator for the 11/780.  Simh can address up to 128Mb of ram emulating an 11/780.  Also the following periphals are emulated:
  
*TLB Translation buffer
+
*CPU VAX-11/780 CPU
*SBI
+
*TLB translation buffer
*MCTL0, nexus=1
+
*SBI system bus controller
*MCTL1, nexus=2
+
*MCTL0,MTCL1 memory controllers, MS780C with 4MB memory each, or MS780E with 8MB-64MB each
*UBA, nexus=3, autoconfiguration enab
+
*UBA DW780 Unibus adapter
*MBA0, nexus=8
+
*MBA0,MBA1 RH780 Massbus adapters
*MBA1, nexus=9
+
*TODR time-of-day clock
*TODR Time of day
+
*TMR interval timer
*TMR
+
*TTI,TTO console terminal
*TTI
+
*RX console RX01 floppy disk
*TTO
+
*DZ [[DZ11]] 8-line terminal multiplexer (up to 4)
*RX
+
*CR [[CR11]] card reader
*DZ, address=2013E040-2013E05F*, vect
+
*LPT [[LP11]] line printer
*CR, address=2013FE70-2013FE77, vecto
+
*RP [[RP04]]/05/06/07, RM02/03/05/80 Massbus disks, up to eight drives
*LPT, address=2013FF4C-2013FF4F, vect
+
*HK [[RK611]]/RK06(7) cartridge disk controller with eight drives
*RP, Massbus adapter 0, 8 units
+
*RL [[RL11]]/RL01(2) cartridge disk controller with four drives
*RL, address=2013F900-2013F909, vecto
+
*RQ [[[UDA50]] MSCP controller with four drives
*HK, address=2013FF20-2013FF3F, vecto
+
*RQB second UDA50 MSCP controller with four drives
*RQ, address=2013F468-2013F46B*, no v
+
*RQC third UDA50 MSCP controller with four drives
*RQB, disabled
+
*RQD fourth UDA50 MSCP controller with four drives
*RQC, disabled
+
*RY [[RX211]] floppy disk controller with two drives
*RQD, disabled
+
*TS [[TS11]] magnetic tape controller with one drive
*RY, address=2013FE78-2013FE7B*, vect
+
*TQ [[TUK50]] TMSCP magnetic tape controller with four drives
*TU, Massbus adapter 1, TM03, 8 units
+
*TU [[TM03]] tape formatter with eight TE16/TU45/TU77 drives
*TS, address=2013F550-2013F553, vecto
+
*XU [[DEUNA]]/[[DELUA]] Ethernet controller
*TQ, TU81 (180MB), address=2013F940-2
+
*XUB second [[DEUNA]]/[[DELUA]] Ethernet controller
*XU, disabled
 
*XUB, disabled
 
 
<br><br>
 
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More information about SIMH's VAX 11/780 emulation can be found [http://simh.trailing-edge.com/pdf/vax780_doc.pdf here].
 
More information about SIMH's VAX 11/780 emulation can be found [http://simh.trailing-edge.com/pdf/vax780_doc.pdf here].

Revision as of 17:45, 7 February 2009

The first VAX Introduced in 1977.


VAX-11/780
Codename: Star
Year Introduced: October 1977
CPU: KA780
Clock Speed: 200 ns
VUPS: 1.0
A 'typical' Vax-11/780 setup.


This was the first VAX from Digital Equipment Corporation. The VAX was the sucessor to the PDP-11, and in order to make the VAX seem more PDP-11 friendly, they retained the -11 monkier for the first VAX's, hence the 11/780 designation. The 11/780 didn't have normal firmware, instead it loaded it's microcode from floppy.

Emulation

SIMH is the only known emulator for the 11/780. Simh can address up to 128Mb of ram emulating an 11/780. Also the following periphals are emulated:

  • CPU VAX-11/780 CPU
  • TLB translation buffer
  • SBI system bus controller
  • MCTL0,MTCL1 memory controllers, MS780C with 4MB memory each, or MS780E with 8MB-64MB each
  • UBA DW780 Unibus adapter
  • MBA0,MBA1 RH780 Massbus adapters
  • TODR time-of-day clock
  • TMR interval timer
  • TTI,TTO console terminal
  • RX console RX01 floppy disk
  • DZ DZ11 8-line terminal multiplexer (up to 4)
  • CR CR11 card reader
  • LPT LP11 line printer
  • RP RP04/05/06/07, RM02/03/05/80 Massbus disks, up to eight drives
  • HK RK611/RK06(7) cartridge disk controller with eight drives
  • RL RL11/RL01(2) cartridge disk controller with four drives
  • RQ [[[UDA50]] MSCP controller with four drives
  • RQB second UDA50 MSCP controller with four drives
  • RQC third UDA50 MSCP controller with four drives
  • RQD fourth UDA50 MSCP controller with four drives
  • RY RX211 floppy disk controller with two drives
  • TS TS11 magnetic tape controller with one drive
  • TQ TUK50 TMSCP magnetic tape controller with four drives
  • TU TM03 tape formatter with eight TE16/TU45/TU77 drives
  • XU DEUNA/DELUA Ethernet controller
  • XUB second DEUNA/DELUA Ethernet controller



More information about SIMH's VAX 11/780 emulation can be found here.

Operating Systems

The 11/780 was to ship with VMS 1.0.

  • VMS 1.0 - ?.0
  • 32v
  • Ultrix
  • BSD (CSRG flavor)
  • NetBSD
  • OpenBSD


There was also the VAX-11/785, which was an upgraded version.