JPS60126736A - Data processor - Google Patents

Abstract

PURPOSE:To enable parallel execution of any number of processes using the limited number of register sets by providing registers for storing process number of processes and a comparator that compares process numbers. CONSTITUTION:The content of present a process number section 1 and contents of process number registers 1-4 are compared by the comparator 13. When coincidence is found, contents of an instruction pointer section 2, a program status section 3 and a general purpose registering section 4 are stored in a corresponding register set. When coincidene is not found, one of register sets is selected and after saving the content in a main memory, contents of the pointer section 2- registering section 4 are stored in a free register set, and the content of the present process number section 1 is stored in a corresponding process number register. Then, process number of a process which is to be executed anew and process numbers of process number registers 1-4 are compared by the circuit 13. Similar operation is executed hereafter.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a data processing device that operates a plurality of processes in parallel.

[Prior art]

A conventional data processing apparatus of this type is shown in FIG. In the figure, / is a process number part that stores the process number of the currently executing process, ko is an instruction pointer part that stores the corresponding instruction pointer information, and 3 is a program number part that stores the corresponding program status information.
Status section, Hiroshi is a general-purpose register section that stores the corresponding general-purpose register information, s, b, q, g are 71''L register set/, register centco, register cent 3, - register seven Each of them stores necessary information such as instruction pointer information, program status information, general register information, etc. for process/, ko, and 3.da.

Next, the operation of this type of data processing device will be explained.

Assume that process 3 is currently being executed. At this time, the contents of the current process number section 1 become 3'', and the instruction pointer section, program status section 3, and general register section 1 contain instruction pointer information of process 3, respectively.
Program status information and general-purpose register information are stored. Suppose that it becomes necessary to execute the process / after this state, first, the current contents of the instruction pointer section 7, program status section 3, and general-purpose register section l are stored in the register set indicated by the current process number section l. Evacuate and store to 3. Thereafter, the contents stored in register cent /, 5 are set in the instruction pointer section, program status section 3, and general register section, and finally the contents of the current process number section / are set to '/''. In this way, switching of execution from process 3 to process/ is achieved.

Conventional data processing devices are configured as described above, so the number of processes that can be executed in parallel is limited by the number of prepared register sets (Hiro in the above example). Increasing the number of possible processes had the disadvantage that the number of register sets had to be increased as well.

, [Summary of the Invention] This invention was made to eliminate the drawbacks of the conventional ones as described above, and provides a process number register for storing the process number of the process stored in each register set. .

The purpose of the present invention is to provide a data processing device that can execute an arbitrary number of processes in parallel using a limited number of register sets by providing a process number stored in these registers and a comparison circuit. It is said that

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIG.

In this first figure, / is the current process number section that stores the process number of the currently executing process, λ [゛ is the instruction pointer section that stores the corresponding instruction pointer information, and 3 stores the corresponding program status information. Program status l, da are general-purpose register sections that store corresponding general-purpose register information, j, 4, 7 . f are register cent 1, register cent λ, register cent 3, and register set hi, respectively, and each has a corresponding process number register /, ? , process number register, 10, process number register 3゜//, process number register, /2 Required information such as instruction pointer information, program status information, and general-purpose register information of the process specified by the contents of /2 is stored. . /3 is a comparison circuit that compares a given arbitrary process number with process number register /, (91, process number register:
l(.

/o)1. ;'Process number and register J (/ /),
The contents of the process number register file /2 are compared to see if there is a match, and if there is a match, the register block number is output.

Note that the main memory (not shown) stores process information (corresponding instruction pointer, program status, general-purpose register contents) for 41 processes, and if any of the 41 processes is Process information is stored with its corresponding process number in register sets /(,1) to q(g) and process number registers /(91 to It(/,1.).

Let's take a look at the operation of this embodiment of the invention.
Switching execution from one process to another is performed as follows. First, the contents of the current process number section / are compared with the contents of the process number registers (9) to 11 (/2) by the comparator circuit /3, and if there is a match, the corresponding register set is The contents of the instruction pointer section, program status section 3, and general-purpose register section are stored. On the other hand, if there is no match, select one of the \1 register sets, save and store its contents in a predetermined process information area of main memory, and then The contents of the instruction pointer section, program status section 3, and general-purpose register section are stored in the set register set, and the contents of the current process number section are stored in the corresponding process number register.

Next, compare the process number of the process you want to newly execute with the process number in the process number register /(?)~ri(/ko) using the comparison circuit/3, and if there is a match, move the corresponding register - Store the contents of the set in the instruction pointer section, program status section 3, and general register section D, and make the contents of the current process number section the previous process number of the new process. On the other hand, if there is no match, one of the large register sets is selected and its contents are saved and stored in the process information area of the main memory. Then, the process information of the newly executed process is read from the main memory and stored in the free register set and the corresponding process number register along with its corresponding process number. Store in the status section 3 and general-purpose register section q. Finally, the contents of the current process number field / are set to the process number of the new process.

In this way, more processes than there are register cents can be run in parallel.

〔Effect of the invention〕

As explained above, according to the present invention, a process number register is added to each of a plurality of register sets, and a comparison circuit is provided to compare the process number stored in these registers with an arbitrary process number. This has the advantage that an arbitrary number of processes exceeding the number of register sets can be executed in parallel.

[Brief explanation of the drawing]

, FIG. 1 is a block diagram showing a conventional device, and FIG. 1 is a block diagram showing an embodiment of the present invention. /...Current process number section, CO...Instruction pointer section, 3.
・Program status section, ・General purpose register section,
5...Register set, /(t,)...Register set, U(71...Register set, 3(g)...Register set, p(9)...Process number register,
/(/θ)...Process number register, 2, (//)...
- Process number register 1.3 (/co)...Process number register, 4L (/3)...Comparison circuit. In each figure, the same reference numerals indicate the same or corresponding parts. 1 figure and 2 figures match/; 4 match Zosta F"O-, 7% Procedural Amendment "Spontaneous"1980',+' 6. rlt 2 Ill Mr. Commissioner of the Japan Patent Office 1, Indication of the case Showa SS Patent Application No. 2334!92, Name of the invention Data processing device Contents of amendment i "Register block number" on the first line of page S of the specification " should be corrected to "register set number". r/(91~de(6) on page 6 of the specification, line is)
)” should be corrected to 1 (9) to da (2). 3. The description in U3A Specification No. from page S line to page 14' line is corrected as follows. "Register section, S... register set 15611@
Register Seratco, 7...Register set, y, t
r-;・Register e set da, ri・・Process number register t, io・・Process number register co, //@fist process code register 3.12・・Process number jistada, /J・・Comparison round. "French The attached drawing No. 11 is corrected as shown in the attached sheet.

Claims (1)

[Claims] A plurality of register sets that store instruction pointer information, program status information, and general-purpose register information that correspond to a given process, and an equal number of register sets that store the process code of the process that corresponds to the contents of each register set. A data processing device comprising: registers, and a comparison circuit that compares process numbers respectively stored in these registers with arbitrary process numbers.