JPS58112118A - Program loading processing system - Google Patents

Abstract

PURPOSE:To reduce the hardware quantity and the packing space and to eliminate a change of a program, by providing a switch whose contents can be read by an auxiliary storage controller and performing a loading action. CONSTITUTION:When a computer system is started with the application of a power supply, etc., an auxiliary storage controller 11 stops the actuation of a central processor 8. Then a sequencer 13 in the controller 11 reads the contents of a switch 14 and then transfers a program which is designated by the switch 14 onto an RAM9 which serves as a main storage device. When this transfer is over, the controller 11 actuates the processor 8 and then waits for an access which is given from the processor 8.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a Grodarum loading processing method, for example, a microcombi, which performs necessary processing from an auxiliary storage device when starting up a system after power is turned on. ! The present invention relates to a processing method for loading programs into main storage.

(2) Background of the technology In general, in a computer system, after the power is turned on to the Mukuro system or before the execution of some Grodarum, the MAf program is loaded from the auxiliary storage device, such as a bubble memory device or a magnetic tape device, into the main storage device. , and then process it! Execute p-gram. Additionally, auxiliary storage devices generally have multiple locations. ! The programs are stored in these places! The necessary one is selected from among the HMf programs in the auxiliary storage device and loaded. Therefore, the computer system has nine processes for selecting and loading the IRP*4 from among the plurality of processing HMf programs in the auxiliary storage device. It is necessary to provide a selection means and a loading means, but since these means are not used during normal program execution, the amount of hardware and memory storage space used is small, and various The auxiliary storage device is required to be able to support the storage capacity 1.

(3) Prior Art and Problems FIG. 1 shows an example of a combination computer system equipped with loading means and the like for carrying out a conventional program loading processing method. In the figure, 1 is a central processing unit composed of a microprocessor, 2 is a random access memory (hereinafter referred to as RAM), and 3 is an initial program load start! Read-only memory (hereinafter referred to as IPL startup program)
(hereinafter referred to as ROM), 4 is an external switch, 5 is an auxiliary storage device, 6th company auxiliary storage controller, and 7th company path line.

In the system shown in FIG. 1, when the power is turned on, the central processing unit 1 executes the IPL startup program in the ROM 3 and stores the initial load program in the auxiliary storage device 5 via the auxiliary storage controller 6. After loading into the RAM 2, the central processing unit 1 reads the initial load program into the auxiliary storage device 5 according to the settings of the switch 4, such as the entry key switch on the console. Loading the processing program required from. Alternatively, the central processing unit 1 directly writes the necessary processing program to the RAMZ using the external switch 4 that stores the IPL startup program in the ROM.
There was p-ding on top.

However, in the conventional type, the RAM 2 used as the main memory is an inexpensive, large-capacity, semiconductor-based random access memory, and its contents are destroyed when power is not supplied. Since the memory is a volatile memory, a non-volatile ROM is required to store the IPL startup program, and an address space that can be accessed from the central processing unit 1 is required. Therefore, in the case of Jin, a friend decoder circuit that allocates ROM addresses to the common address space with RAM 2 is required] and now o l!
Installation space is also required. Furthermore, in the conventional type, since the access method differs depending on the type of auxiliary storage device, there is a problem in that it is necessary to change the IPL boot program, that is, the contents of the ROM, depending on the SOLLH.

(4) Purpose of the Invention Purpose of the Invention In view of the problems with the conventional type described above, in the program locating processing method, a switch that can be read and output by the auxiliary storage controller is provided to perform a loader operation on the auxiliary storage controller. Shiruto i
R to memorize the IPL startup program based on the concept
The object of the present invention is to reduce the amount of /S-ware and mounting space of a computer system by eliminating the need for OM, and to eliminate the need to change an IPL startup program depending on the type of auxiliary storage device.

(5) Structure of the Invention and Purpose According to the present invention, in a program loading processing method that loads a necessary processing program from among a plurality of processing programs in an auxiliary storage device into a main storage device at the time of system startup, Using an information setting switch that can be read by the auxiliary storage controller that performs the operation 0II11111I of reading information from the auxiliary storage device, a processing program required by the auxiliary storage controller is created according to the settings of the reprimand information setting switch. This is achieved by providing a program loading processing method characterized by loading.

(6) Examples of the invention The present invention will be described in detail below using drawings.

FIG. 2 schematically depicts an example of a rounding computer system implementing the scheme of the present invention. In the figure, 8 is a central processing unit, 9 is a main storage device, M, 10 is an auxiliary storage device, 11 is an auxiliary storage controller, 12 is a path line, 13 is a sequencer, and 14 is a program to be loaded. This is a switch for

In the system shown in FIG. 2, the ROM for the IPL startup processing GLODRAM, which was provided as part of the main memory of the conventional system, is removed, and all loading operations are performed by the auxiliary storage controller 11. The switch 4 is readable by the auxiliary storage controller 14, and the necessary program in the auxiliary storage device 1G is designated and loaded by the switch 4.
As an example, the switch 4 is a switch 1 and a switch 0. As shown in FIG. shall be taken as a thing. In this case, the correspondence between each switch 1 and switch 0 and each program in the auxiliary storage device 10 can be determined as shown in FIG. 3, for example.

In a combination, -voice system, when the combination, -ta system is activated, the auxiliary storage controller 11 puts the central processing unit 8 into a stopped state.Next, the auxiliary storage controller The sequencer 13 in
When zero or more operations of transferring the program specified by each switch to RAMG, which is the main memory device, according to the correspondence relationship shown in the figure are completed, the auxiliary memory controller puts the central processing unit in the deep state, and the auxiliary memory controller itself It enters a state of waiting for access from the central IJ & ring device.

FIG. 4 shows a schematic configuration of the sequencer in the above-mentioned auxiliary storage controller. In the same figure, 131 is a microgrocer, 132 is a register for temporarily storing information from the switch 14, and 133 is a ROM% for storing flogzum. 13
4 is a working RAM; 135 is a register for temporarily storing reading information from the auxiliary storage device; 13;
Reference numeral 6 denotes a transmitting/receiving circuit for exchanging information between the log line 12 of the combination system and the sequencer 13.

In the circuit of FIG. 4, the ROM 133 has a microl
The Rosena 131 performs the necessary operations as a normal auxiliary storage controller to read and write information in the auxiliary storage fK in response to commands from the central processing unit 8. Contains a gramogram for performing a tinging operation. Therefore, when the system starts up when the power is turned on, the microlog 04+j73
1 is the auxiliary storage device [10
It accesses the location of the corresponding program in the memory, and loads the necessary program into the main memory via the register 135 and the transmitting/receiving circuit 136.

(7) Effects of the Invention Therefore, according to the present invention, only the RAM needs to be placed in the address space of the central processing unit (a ROM for storing the IPL startup log is not required, and the auxiliary storage controller Since it is only necessary to slightly increase the capacity of the ROM, the amount of hardware and implementation space of the combination system can be reduced.Also, by providing a load/under function for each auxiliary storage controller, the auxiliary There is no need to change the IPL startup program content depending on the type of storage device.

[Brief explanation of drawings]

FIG. 1 is a block circuit diagram illustrating a computer system used to implement a conventional method; FIG. 2 is a combination computer system used to implement a method according to an embodiment of the present invention; 3 is an explanatory diagram showing the correspondence between switches and loading target programs in the system of FIG. 2, and FIG. 4 is a diagram of the sequencer used in the system of FIG. 2. It is a professional circuit diagram showing a configuration example. 1.8- Central processing unit, 2,9,134 Random access memory, 3,133 Read only memory, 4.14- Switch, 5,10 Auxiliary storage device, 6 , 11... Auxiliary storage controller, 7゜12
・-z4xlli, 13 ++・Sequencer, 131・
...Microgrocer, 132.135...Register, 136...Transmission/reception circuit. Patent applicant Fujitsu Limited Patent application Patent attorney Akira Minoru Patent attorney Kazuyuki Nishidate Patent attorney Yukio Uchida Patent attorney Akira Yamaguchi Figure 1 Figure 2 311 Jl & 4m To the equipment

Claims (1)

[Claims] Multiple processes in auxiliary storage at system startup! Load the necessary processing program from within the program into the main memory! In the program loading processing method, the auxiliary storage controller that controls the reading and dispersion of information from the auxiliary storage device reads JI! The auxiliary storage controller uses an information setting switch that can be set to
It is characterized by loading 1F Loggram!
Program loading processing method.