NORD-50: Difference between revisions

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| word size = 32 bit
| word size = 32 bit
| year introduced =  
| year introduced =  
| form factor        =  mini
| form factor        =  [[minicomputer]]
| physical address = 4 megabytes
| physical address = 4 megabytes
}}
}}
The NORD-50 computer system is a completely integrated system of NORD-10/S and NORD-50 CPUs. The I/O system, file system and operating system are common to both processors.
The NORD-50 computer system is a completely integrated system of NORD-10/S and NORD-50 CPUs. The [[I/O]] system, [[file system]] and [[operating system]] are common to both processors.


The NORD-50 CPU was used in the [[ND 1100/S]], [[ND 1200/S]], [[ND 1300/S]] and [[ND 1400/S]] systems.
The NORD-50 [[CPU]] was used in the [[ND 1100/S]], [[ND 1200/S]], [[ND 1300/S]] and [[ND 1400/S]] systems.


The NORD-50 CPU is designed to be a fast floating point processor which is a total slave to the [[NORD-10/S]].
The NORD-50 CPU is designed to be a fast [[floating point]] processor which is a total slave to the [[NORD-10/S]].


NORD-50 does not have an I/O system or interrupt system by itself, all I/O is done through the NORD-10/S which submits jobs to NORD-50 for execution in batches. The [[NORD-10]] acts as a system supervisor running the operating system [[SINTRAN III/VS]] and the [[NORD-50 monitor]].
NORD-50 does not have an I/O system or [[interrupt]] system by itself, all I/O is done through the NORD-10/S which submits jobs to NORD-50 for execution in batches. The [[NORD-10]] acts as a system supervisor running the operating system [[SINTRAN III/VS]] and the [[NORD-50 monitor]].


In a NORD-50 computer system, the NORD-10/S has the following functions:
In a NORD-50 computer system, the NORD-10/S has the following functions:
*Supervision and synchronization of the NORD-50s in the system.
*Supervision and synchronization of the NORD-50s in the system.
*Running the operating system, SINTRAN III.
*Running the operating system, SINTRAN III.
*Generating NORD-50 executable machine code via NORD-50 assembler or FORTRAN compiler.
*Generating NORD-50 executable [[machine code]] via NORD-50 [[assembler]] or [[FORTRAN]] [[compiler]].
*Being the I/O system for the NORD-50s performing I/O transfer to / from the NORD-50 memory.
*Being the I/O system for the NORD-50s performing I/O transfer to / from the NORD-50 memory.


The NORD-50s in the system perform execution of instructions with data supplied through the NORD-10/S I/O system from byte oriented devices such as terminals, general DMA devices such as disks and magnetic tapes, the universal DMA interface, and special high-speed DMA channels connected directly to ports in the multiport memory system.
The NORD-50s in the system perform execution of [[instruction]]s with data supplied through the NORD-10/S I/O system from byte oriented devices such as terminals, general [[DMA]] devices such as [[disk]]s and [[magnetic tape]]s, the universal DMA interface, and special high-speed DMA channels connected directly to ports in the [[multi-port memory]] system.


The NORD-50 can use multiport shared and private memory and also static high-speed, private memory for frequently used code and data.
The NORD-50 can use multi-port shared and private memory and also static high-speed, private memory for frequently used code and data.


The NORD-50s themselves do not perform any tasks except for running the application programs.
The NORD-50s themselves do not perform any tasks except for running the application programs.
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To the NORD-10 the NORD-50 looks like any other device and is controlled via standard [[IOX]] instructions.
To the NORD-10 the NORD-50 looks like any other device and is controlled via standard [[IOX]] instructions.


{{Stub}}
== CPU ==


== CPU ==
The NORD-50 CPU has a [[word]] length of 32 bits.
The NORD-50 CPU has a word length of 32 bits.


There are a number of registers in the NORD-50 CPU.
There are a number of [[register]]s in the NORD-50 CPU.


* 64 general data registers with register 0 always containing zero.
* 64 general data registers with register 0 always containing zero.
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== Address space ==
== Address space ==
The NORD-50 has 4 megabytes physical address space.
The NORD-50 has 4 megabytes physical [[address space]].


== Circuit boards ==
== Circuit boards ==
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== References ==
== References ==
[http://www.ndwiki.org/wiki/NORD-50 NDWiki: NORD-50]
[http://www.ndwiki.org/wiki/NORD-50 NDWiki: NORD-50]
{{Stub}}


[[Category:Norsk Data Hardware]]
[[Category:Norsk Data Hardware]]

Revision as of 12:06, 27 April 2018


NORD-50
Manufacturer: Norsk Data
Form Factor: minicomputer
Word Size: 32 bit
Physical Address Size: 4 megabytes

The NORD-50 computer system is a completely integrated system of NORD-10/S and NORD-50 CPUs. The I/O system, file system and operating system are common to both processors.

The NORD-50 CPU was used in the ND 1100/S, ND 1200/S, ND 1300/S and ND 1400/S systems.

The NORD-50 CPU is designed to be a fast floating point processor which is a total slave to the NORD-10/S.

NORD-50 does not have an I/O system or interrupt system by itself, all I/O is done through the NORD-10/S which submits jobs to NORD-50 for execution in batches. The NORD-10 acts as a system supervisor running the operating system SINTRAN III/VS and the NORD-50 monitor.

In a NORD-50 computer system, the NORD-10/S has the following functions:

  • Supervision and synchronization of the NORD-50s in the system.
  • Running the operating system, SINTRAN III.
  • Generating NORD-50 executable machine code via NORD-50 assembler or FORTRAN compiler.
  • Being the I/O system for the NORD-50s performing I/O transfer to / from the NORD-50 memory.

The NORD-50s in the system perform execution of instructions with data supplied through the NORD-10/S I/O system from byte oriented devices such as terminals, general DMA devices such as disks and magnetic tapes, the universal DMA interface, and special high-speed DMA channels connected directly to ports in the multi-port memory system.

The NORD-50 can use multi-port shared and private memory and also static high-speed, private memory for frequently used code and data.

The NORD-50s themselves do not perform any tasks except for running the application programs.

The slave processor NORD-50 is activated by the NORD-10/S and NORD-50 executes programs in parallel with the activities in NORD-10/S. The NORD-10/S is interrupted when the NORD-50 comes to an end of its tasks.

To the NORD-10 the NORD-50 looks like any other device and is controlled via standard IOX instructions.

CPU

The NORD-50 CPU has a word length of 32 bits.

There are a number of registers in the NORD-50 CPU.

  • 64 general data registers with register 0 always containing zero.
  • The 64 general registers can be combined in pairs as 32 64 bit floating point registers.
  • The lower 16 registers can be used as base or index registers for addressing.

Address space

The NORD-50 has 4 megabytes physical address space.

Circuit boards

Main registers and arithmetic, communication registers NORD-10/NORD-50, memory address and data lines, line drivers for external arithmetic are organised on three different boads, each handling four bits:

  • 1501 Address Arithmetic
  • 1502 Register
  • 1503 Arithmetic Buffer

The 32 bit CPU uses eight of each board, making a total of 24 boards.

The timing and control section of the CPU uses eight different boards:

  • 1500 NORD-50 I/O Control
  • 1504 NORD-50 Controller
  • 1505 Register Address
  • 1506 Cycle Counter
  • 1507 Arithmetic Control
  • 1508 Chip Select
  • 1510 Instruction Control
  • 1519 Timing Control

References

NDWiki: NORD-50

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