JP2010029410A - Game machine, game control program, and game control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a game machine suitable for preventing fraudulent action without increasing the difficulty level of development or designing and data capacity. <P>SOLUTION: The main control section 200 of a Pachinko game machine is constituted of a CPU 202 and an access certification unit 230 for certificating the justice of the access by the CPU 202. The access certification unit 230 has registers 234, 236, an obtaining section 231 obtaining order code train which the CPU core 204 executes and the addresses of the same, and an access control section 238 controlling the accesses to the registers 234, 236 by the CPU core 204 based on the order code trains and the addresses obtained in the obtaining section 231. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a gaming machine that displays symbols in a variable manner on a symbol display device and generates a special prize state after the symbols are stopped in a predetermined manner, and in particular, without increasing the difficulty and data capacity of development and design. The present invention relates to a gaming machine, a game control program, and a game control method suitable for preventing unauthorized operation.

Pachinko machines and other gaming machines are subjected to a certification test at a designated certification organization in accordance with the law. In the certification test, one of the passing conditions is that the instruction code sequence executed by the microprocessor of the gaming machine satisfies a certain requirement. Only gaming machines that pass the certification test can be distributed to the market.
However, after distribution to the market, gaming machine boards and chips (semiconductor devices such as LSIs) are replaced with unauthorized ones, unauthorized chips are added, microprocessors are modified, microprocessor ROMs are installed, etc. Injustices such as rewriting may be performed. These are mainly performed by a third party for illegal operation of the gaming machine for the purpose of obtaining illegal profits.

Moreover, the same problem can be considered when the gaming machine is illegally operated due to an electrical / physical error. As an electrical / physical error, for example, when an instruction code string is read (fetched), a bit error occurs due to the influence of electromagnetic waves or static electricity, and the contents of the instruction code string change. It is done.
As described above, the illegal operation caused by the illegal act or the error has a large damage to the pachinko hall or the like, and it is required to prevent this.

Conventionally, as a technique for preventing unauthorized operation of a microprocessor or the like, for example, techniques described in Patent Documents 1 and 2 are known.
The technique described in Patent Document 1 holds a program counter value in a register, a table that holds an address of a protection area on a memory, and a table that holds an address of an instruction permitted to access the protection area. The access detection circuit determines whether the instruction is an access instruction to the protection area based on the result of decoding the instruction and the comparison result between the address of the access destination and the address of the table. If an access instruction to the protection area is detected, it is prohibited when the comparison circuit compares the register and table addresses and determines that the instruction is read from an area where access to the protection area is not permitted. A signal is output to prohibit unauthorized memory access.

The technique described in Patent Document 2 is to check program data stored in a ROM of a gaming machine using a ROM checker.
JP-A-10-228421 JP 11-333108 A

However, in the technique described in Patent Document 1, since the instruction code string is decoded and the program counter value is read, the process of the illegal operation detection process becomes complicated, and the difficulty of development and design increases. There was a problem.
Further, the technique described in Patent Document 2 has a problem in that since the check is performed by connecting a ROM checker each time, it cannot be performed while the gaming machine is in operation, and the check operation is not easy. Although it is conceivable to provide an illegal operation detection process corresponding to the function of the ROM checker and perform a check at the time of starting or operating the gaming machine, it is necessary to prepare a table having the same capacity as the ROM for the check. However, for gaming machines, the data capacity for the control program is strictly limited by law, so it is not practical to have such a large capacity table.

  Therefore, the present invention has been made paying attention to such an unsolved problem of the conventional technology, and prevents unauthorized operation without increasing the difficulty of development and design and the data capacity. It is an object of the present invention to provide a game machine, a game control program, and a game control method suitable for the above.

  [Invention 1] In order to achieve the above object, the gaming machine of Invention 1 variably displays a symbol by a lottery means for performing a lottery to determine whether or not a special prize state is generated when a predetermined condition is satisfied, and a symbol display means. And a data processing means for performing data processing relating to a game, and when the lottery means determines that the special prize state is generated, the special prize state is displayed after the symbol is stopped in a predetermined mode. A game machine to be generated, a storage means for storing data for performing the data processing, an acquisition means for acquiring information relating to an instruction executed by the data processing means, and an information relating to the instruction acquired by the acquisition means And an access control means for controlling access to the storage means by the data processing means.

With this configuration, the acquisition unit acquires information related to the instruction executed by the data processing unit, and the access control unit accesses the storage unit by the data processing unit based on the acquired information related to the instruction. Be controlled. This reduces the possibility that the data in the storage means will be illegally rewritten or read out.
Here, as the information regarding the instruction, for example, (1) instruction code or instruction code string, (2) storage position information (for example, address) indicating the storage position of the instruction code or instruction code string, (3) instruction code or Execution result information indicating the execution result of the instruction code string (for example, the value of the flag register), or (4) secondary information obtained based on one or a plurality of pieces of information (for example, operation information obtained by operation or the like) ) Is included. Hereinafter, the same applies to the game control program of the eleventh aspect and the game control method of the twelfth aspect.

  As for “control” of access, for example, (1) when it is determined that an access permission condition is established based on information on an instruction or secondary information obtained based on the information, a part or all of the access is permitted. If it is determined that the access permission condition is not satisfied, the access restriction condition is satisfied based on information related to the instruction or secondary information obtained based on the information, or (2) restricting part or all of the access. When it is determined, part or all of the access is restricted, and when it is determined that the access restriction condition is not satisfied, permitting part or all of the access is included. As the access permission condition or the access restriction condition, for example, (1) information related to an instruction or secondary information obtained based on the information is within a predetermined value, content, or range; It is included that the secondary information obtained on the basis is not within a predetermined value, content, or range. As for “restriction” of access, for example, (1) prohibiting a part or all of access, and (2) controlling so that an access result corresponding to the access request cannot be obtained (for example, access request Read or write data different from the related data). Hereinafter, the same applies to the game control program of the eleventh aspect and the game control method of the twelfth aspect.

  Regarding the relationship between the instruction in the information related to the instruction and the access control, for example, (1) based on the information related to the instruction executed by the data processing means for accessing the storage means, the access related to the instruction (2) Based on the information related to the instruction executed by the data processing means, the access related to the instruction executed by the data processing means for accessing the storage means is controlled before or after the instruction. It is included. In the case of (2), the causal relationship is difficult to understand, and the possibility of fraudulent acts can be further reduced. Hereinafter, the same applies to the game control program of the eleventh aspect and the game control method of the twelfth aspect.

Further, the special prize state means an advantageous state in which a predetermined game value can be given to the player, and includes, for example, an opening operation of a special prize opening. Hereinafter, the same applies to the game control program of the eleventh aspect and the game control method of the twelfth aspect.
In addition, as for the establishment of the predetermined condition, for a pachinko machine, for example, a game ball wins a start winning opening, and for a pachislot machine, for example, an operation lever that instructs a game start is operated. Is included. Hereinafter, the same applies to the game control program of the eleventh aspect and the game control method of the twelfth aspect.

  The storage means may include any means that can store data at any time, and may store predetermined data in advance, or may store the present data without storing the predetermined data in advance. Predetermined data may be stored by an external input or the like during operation of the gaming machine.

  [Invention 2] Further, in the gaming machine of Invention 2, in the gaming machine of Invention 1, when the access control means determines that the access permission condition is satisfied based on information about the command acquired by the acquisition means, When access to the storage unit is permitted and it is determined that the access permission condition is not satisfied, access to the storage unit is restricted.

  With such a configuration, when it is determined by the access control means that the access permission condition is satisfied based on the information related to the acquired instruction, access to the storage means is permitted. On the other hand, if it is determined that the access permission condition is not satisfied based on the information related to the acquired command, access to the storage unit is restricted.

  [Invention 3] Further, in the gaming machine of Invention 3, in the gaming machine of Invention 2, the acquisition means acquires an instruction code or an instruction code string executed by the data processing means, and the access permission condition is the acquisition permission The instruction code or instruction code string acquired by the means includes a predetermined code or code string.

  With such a configuration, an instruction code or an instruction code string executed by the data processing unit is acquired by the acquisition unit. When the access control means determines that the acquired instruction code or instruction code string is a predetermined code or code string, access to the storage means is permitted. As a result, an illegally rewritten instruction code or instruction code string, or an instruction code or instruction code string whose contents have changed due to a bit error, is executed, so that the data in the storage means can be illegally rewritten or read. The possibility of doing is reduced.

  [Invention 4] Further, the gaming machine of Invention 4 is the gaming machine according to any one of Inventions 2 and 3, further comprising an instruction code storage means for storing the instruction code, wherein the acquisition means is the data processing means. The storage position information indicating the storage position of the instruction code or instruction code string to be executed in the instruction code storage means is acquired, and the access permission condition is that the storage position of the storage position information acquired by the acquisition means is a predetermined storage position. Including being.

  With such a configuration, the acquisition unit acquires the storage position information indicating the storage position in the instruction code storage unit of the instruction code or the instruction code sequence executed by the data processing unit. When the access control means determines that the storage position of the acquired storage position information is a predetermined storage position, access to the storage means is permitted. As a result, the possibility that the data in the storage means is illegally rewritten or read out by executing the instruction code or the instruction code string stored in the illegal position is reduced.

Here, as the storage position of the instruction code string, for example, the storage position of the first instruction code in the instruction code string, the storage position of the predetermined instruction code in the instruction code string, the instruction code included in the instruction code string, Each storage location is included.
In addition, the instruction code storage means includes a means capable of storing the instruction code at any time and at any time, and may store the instruction code in advance, or without storing the instruction code in advance, An instruction code may be stored by an external input or the like during operation of the gaming machine. Hereinafter, the same applies to the gaming machines of inventions 5 and 6.

  [Invention 5] The gaming machine according to Invention 5 is the gaming machine according to any one of Inventions 2 and 3, wherein the instruction code storage means stores the instruction code and the instruction code stored in the instruction code storage means or An arithmetic means for performing a predetermined operation using at least a part of the instruction code string, wherein the acquisition means acquires an operation result of the arithmetic means, and the access permission condition is an operation acquired by the acquisition means It includes that the result is a predetermined result.

  In such a configuration, the calculation means performs a predetermined calculation using at least a part of the instruction code or the instruction code string stored in the instruction code storage means, and the acquisition means acquires the calculation result. The When the access control means determines that the obtained calculation result is a predetermined result, access to the storage means is permitted.

  [Invention 6] Furthermore, the gaming machine of Invention 6 is the gaming machine according to any one of Inventions 2 and 3, wherein the instruction code is stored in the instruction code storage means and the predetermined code stored in the instruction code storage means. Computing means for performing a predetermined calculation using a value, wherein the acquisition means acquires a calculation result of the calculation means, and the access permission condition is that the calculation result acquired by the acquisition means is a predetermined result. Including being.

  If it is such a structure, a predetermined calculation will be performed by the calculating means using the predetermined fixed value memorize | stored in the instruction code memory | storage means, and the calculation result will be acquired by an acquisition means. When the access control means determines that the obtained calculation result is a predetermined result, access to the storage means is permitted.

  [Invention 7] Further, in the gaming machine according to Invention 7, in the gaming machine according to any one of Inventions 2 to 6, the acquisition means executes execution indicating an execution result of an instruction code or an instruction code string executed by the data processing means. Result information is acquired, and the access permission condition includes that the execution result of the execution result information acquired by the acquisition unit is a predetermined result.

  With such a configuration, execution result information indicating an execution result of an instruction code or an instruction code sequence executed by the data processing unit is acquired by the acquisition unit. When the access control means determines that the execution result of the acquired execution result information is a predetermined result, access to the storage means is permitted. As a result, an illegally rewritten instruction code or instruction code string, or an instruction code or instruction code string whose contents have changed due to a bit error, is executed, so that the data in the storage means can be illegally rewritten or read. The possibility of doing is reduced.

[Invention 8] The gaming machine of Invention 8 is the gaming machine according to any one of Inventions 1 to 7, wherein the access control means controls access to a specific address space in the storage means.
With such a configuration, the access control means controls access to a specific address space in the storage means. Thereby, by controlling access to the address space in which important information such as confidential information is stored in the storage means, the possibility that the important information is illegally rewritten or read is reduced.

[Invention 9] The gaming machine according to Invention 9 is further provided with control status notification means for notifying the access control status by the access control means in the gaming machine according to any one of Inventions 1 to 8.
With such a configuration, the control status notification means notifies the access control status by the access control means.

  Here, the control status notification means may be notified by a method capable of recognizing the notification target, and when the notification target is a person, for example, display, sound output, vibration, or other methods perceivable by the five senses. Can do. When the notification target is a computer or the like, signal output, data transmission, or other methods that can be recognized by the computer or the like can be performed.

[Invention 10] Furthermore, the gaming machine of Invention 10 is the gaming machine according to any one of Inventions 1 to 9, wherein the data processing means is a main control means for performing main control of the game, and is controlled by the control of the main control means. This is a data processing means for effect control means for performing the effect control, or payout control means for performing payout control of the game medium by the control of the main control means.
With such a configuration, access to the storage means by the data processing means of the main control means, the effect control means or the payout control means is controlled by the access control means.

[Invention 11] On the other hand, in order to achieve the above object, the game control program of Invention 11 includes a lottery means for performing a lottery to determine whether or not a special prize state is generated when a predetermined condition is satisfied, and a symbol display means. It is determined that the special prize state is generated by the lottery means, the symbol changing means for variably displaying, a data processing means for performing data processing relating to the game, and a storage means for storing data for performing the data processing. When it is a game control program applied to a gaming machine that generates the special prize state after stopping the symbol in a predetermined manner, an acquisition step of acquiring information related to an instruction executed by the data processing means; An access control step for controlling access to the storage means by the data processing means on the basis of information on the instruction obtained in the obtaining step. Is a program for causing a computer to execute processing including
If it is such a structure, if a computer reads a program and a computer will perform a process according to the read program, the effect | action equivalent to the game machine of invention 1 will be acquired.

  [Invention 12] On the other hand, in order to achieve the above object, the game control method of Invention 12 includes a lottery means for performing a lottery to determine whether or not a special prize state is generated when a predetermined condition is satisfied, and a symbol display means. It is determined that the special prize state is generated by the lottery means, the symbol changing means for variably displaying, a data processing means for performing data processing relating to the game, and a storage means for storing data for performing the data processing. When it is a game control method applied to a gaming machine that generates the special prize state after stopping the symbol in a predetermined manner, an acquisition step of acquiring information on an instruction executed by the data processing means; An access control step for controlling access to the storage means by the data processing means based on information about the instruction obtained in the obtaining step. .

  As described above, according to the gaming machine of the first aspect, it is possible to reduce the possibility that the data in the storage means is illegally rewritten or read out. The effect that the possibility of being performed can be reduced is obtained. In addition, since the acquisition means and the access control means that are separate from the data processing means realize the access control function, the data processing means itself does not need to perform unauthorized operation detection processing, and development and design of the data processing means are not necessary. The effect that it can suppress that a difficulty level becomes high is also acquired. Furthermore, since access is controlled based on information related to instructions, it is not necessary to prepare a table having the same capacity as that of a ROM, and an effect of suppressing an increase in data capacity as compared with the prior art can be obtained. It is done.

Furthermore, according to the gaming machine of the second aspect, since access is controlled according to the success or failure of the access permission condition, it is possible to further suppress an increase in data capacity.
Furthermore, according to the gaming machine of the invention 3, by executing the illegally rewritten instruction code or instruction code string or the instruction code or instruction code string whose contents have changed due to a bit error, the data in the storage means is illegal. Since the possibility of being rewritten or read out can be reduced, there is an effect that the possibility that an illegal operation is performed can be further reduced.

Furthermore, according to the gaming machine of the invention 4, the possibility that the data in the storage means is illegally rewritten or read out by executing the instruction code or the instruction code sequence stored in the illegal position is reduced. Therefore, it is possible to further reduce the possibility that an illegal operation is performed.
Furthermore, according to the gaming machine of the invention 5, it is possible to detect that the instruction code or the instruction code string stored in the instruction code storage means can be illegally rewritten.

Furthermore, according to the gaming machine of the sixth aspect, it is possible to detect that the instruction code storage means has been replaced with an illegal one.
Furthermore, according to the gaming machine of the invention 7, the data in the storage means is illegal by executing an illegally rewritten instruction code or instruction code string or an instruction code or instruction code string whose contents have changed due to a bit error. Since the possibility of being rewritten or read out can be reduced, there is an effect that the possibility that an illegal operation is performed can be further reduced.

Furthermore, according to the gaming machine of the eighth aspect, by controlling access to the address space in which the important information such as confidential information is stored in the storage means, the important information is illegally rewritten or read out. Therefore, there is an effect that it is possible to further reduce the possibility that an illegal operation is performed.
Furthermore, according to the gaming machine of the ninth aspect, it is possible to grasp that there is a possibility that an illegal operation has been performed.

Furthermore, according to the gaming machine of the tenth aspect, it is possible to reduce the possibility that the data processing means of the main control means, the effect control means or the payout control means can be illegally operated.
On the other hand, according to the game control program of the invention 11 or the game control method of the invention 12, the same effect as the gaming machine of the invention 1 can be obtained.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. 1 to 13 are diagrams showing a first embodiment of a gaming machine, a game control program, and a game control method according to the present invention.
In this embodiment, a gaming machine, a gaming control program, and a gaming control method according to the present invention are applied to a pachinko machine.
[Composition of game board]
First, the configuration of the game board 101 in the pachinko machine will be described.

FIG. 1 is a front view of the game board 101.
In FIG. 1, two rails 102 a and 102 b are provided on the left side of the game board 101 so as to draw an arc and extend upward. The game area 103 is provided with a plurality of nails (not shown) for making the trajectory of the game ball fall irregularly, and a windmill or a prize opening for changing the fall direction of the game ball is provided in the middle of the fall. It has been. The game ball is fired by a launching unit (not shown) disposed at a lower position of the game board 101, rises between the rails 102a and 102b, reaches the upper position of the game board 101, and then falls within the game area 103. To do.

In the central portion of the game board 101, a symbol display unit 104 is provided that displays the effect symbols in three regions while independently varying them. The symbol display unit 104 is, for example, a liquid crystal display (LCD (Liquid Crystal Display)) or a CRT (Cathode).
Ray Tube), a variable display device such as a display, a 7 segment LED, a dot matrix display device, a drum that is variably displayed by the rotation of a motor, and the like.

Below the symbol display unit 104 is provided a start winning opening 105 through which a game ball can be won. A winning gate 106 is provided on each of the left and right sides of the symbol display unit 104. When the game ball passes through the winning gate 106, a predetermined lottery is performed, and when the winning ball is won, the start winning opening 105 is opened for a predetermined time.
A normal winning opening 107 is provided on each of the left and right sides of the start winning opening 105. When a game ball wins the normal winning opening 107, a predetermined number (for example, 10) of game balls is paid out as a prize ball for each game ball.

Below the start winning opening 105, it is normally closed, but when the design symbol on the symbol display unit 104 becomes a jackpot symbol (for example, “777”), the game ball can be won in an open state. A special winning opening 109 is provided. When the jackpot lottery is won, the opening and closing members installed on the entire surface of the winning prize opening 109 repeat the opening and closing operation. While the open / close member is open, a large number of game balls are received. When a game ball wins the big winning opening 109, a predetermined number (for example, 10) of game balls is paid out as a prize ball for each game ball. The opening of the special winning opening 109 continues until a predetermined time (for example, 30 seconds) elapses or a predetermined number (for example, 10) of game balls wins. One opening period of the special winning opening 109 is called a round, and the round continues for a predetermined number of times (for example, 15 times).
At the lowermost part of the game area 103, a collection port 108 is provided for collecting game balls that have not won any of the winning ports.

[Configuration of game control device]
Next, the configuration of the game control device 100 in the pachinko machine will be described.
FIG. 2 is a block diagram showing a configuration of the game control device 100.
As shown in FIG. 2, the game control device 100 includes a main control unit 200 that performs main control of the game, an effect control unit 300 that performs game effect control by the control of the main control unit 200, and control of the main control unit 200. And a prize ball control unit 400 that controls the payout of game balls.
The main control unit 200 performs main control of the game and transmits various control commands for performing game effect control or game ball payout control to the effect control unit 300 and the prize ball control unit 400, respectively.

  On the input side of the main control unit 200, a start winning port detection unit 280 that detects a game ball won in the start winning port 105, a gate detection unit 282 that detects a game ball that has passed the winning gate 106, and a normal winning port A normal winning hole detection unit 284 that detects a game ball won in 107 and a big winning port detection unit 286 that detects a game ball won in the big winning port 109 are connected. These detection parts 280-286 can be comprised using a proximity switch, for example.

To the output side of the main control unit 200 is connected a large winning opening / closing portion 288 that opens and closes the opening / closing member of the large winning opening 109 during the big hit. The big prize opening opening / closing unit 288 can be configured using, for example, a solenoid. The jackpot is pre-programmed to occur with a predetermined probability (for example, 1/300) based on the jackpot random number.
The effect control unit 300 receives a control command from the main control unit 200 and performs an effect control of the game based on the received control command. The effect control unit 300 includes a ROM 304 that stores a control program, a CPU 302 that executes an effect control process according to the control program stored in the ROM 304, a RAM 306 that functions as a data work area during the calculation process of the CPU 302, and a display on the symbol display unit 104. And an I / F 310 for inputting / outputting data to / from an external device.

Connected to the I / F 310 are a symbol display unit 104, a sound control unit 382 that performs sound control for outputting sound from the speaker 380, and a lamp control unit 386 that performs lamp control for lighting the lamp 384.
The award ball control unit 400 receives a control command from the main control unit 200 and performs payout control of the game ball based on the received control command. The prize ball control unit 400 includes a ROM 404 that stores a control program, a CPU 402 that executes a payout control process according to the control program in the ROM 404, a RAM 406 that functions as a data work area during the calculation process of the CPU 402, and an external device. And an I / F 410 that performs output.

Connected to the I / F 410 are a payout unit 480 that pays out a predetermined number of game balls from the game ball storage unit, and a launch unit 482 that launches the game balls to the game board 101.
The winning ball control unit 400 controls the paying unit 480 to pay out a predetermined number of game balls in accordance with winnings in each winning award (starting winning port 105, normal winning port 107, large winning port 109). . In addition, an operation on the launch unit 482 is detected, and the launch of the game ball is controlled.

The launching unit 482 includes a sensor that detects an operation by a player and a solenoid that launches a game ball. When the award ball control unit 400 detects an operation by the sensor of the launch unit 482, the prize ball control unit 400 intermittently fires a game ball by driving a solenoid according to the operation amount.
The main control unit 200, the effect control unit 300, and the prize ball control unit 400 are provided on different printed boards (main control board, effect board, and prize ball board), respectively. For example, the prize ball control unit 400 may be provided on the same printed circuit board as the main control unit 200.

[Configuration of main controller]
Next, the configuration of the main control unit 200 will be described.
FIG. 3 is a block diagram illustrating a configuration of the main control unit 200.
As shown in FIG. 3, the main control unit 200 is a DIP (Dual
CPU 202 which is a one-chip type microprocessor composed of Inline Package), an access authentication device 230 for authenticating the legitimacy of access by the CPU 202, and an inspection port 240 used for a pachinko machine verification test. ing.

  The CPU 202 includes a ROM 206 that stores a control program, a CPU core 204 that executes game control processing according to the control program stored in the ROM 206, a RAM 208 that functions as a data work area when the CPU core 204 performs arithmetic processing, and an inspection port 240. And a security inspection circuit 210 that outputs an instruction code string executed by the CPU core 204 and other inspection data, and an I / F 212 that performs input / output with an external device.

  The CPU 202 is further configured to include a timer 214 that measures time and an external device control circuit 216 that outputs information related to instructions executed by the CPU core 204. The CPU core 204, ROM 206, RAM 208, security inspection circuit 210, I / F 212, timer 214, and external device control circuit 216 are connected to each other via a bus 218.

  An access authentication device 230 is connected to the external device control circuit 216. The external device control circuit 216 outputs an address signal, a data signal, and a control signal transmitted / received via the bus 218 to the access authentication device 230. Thereby, the access authentication device 230 can acquire an instruction code string executed by the CPU core 204 and an address in the ROM 206 (hereinafter simply referred to as an address). Here, the address of the instruction code string refers to the address of the first instruction code in the instruction code string.

  In addition to the CPU 302, ROM 304, RAM 306, VRAM 308, and I / F 310, the effect control unit 300 includes an effect-related device group 312 including a plurality of devices necessary for game effect control. Similarly, the prize ball control unit 400 includes a prize ball related device group 412 including a plurality of devices required for game ball payout control, in addition to the CPU 402, the ROM 404, the RAM 406, and the I / F 410.

[Configuration of CPU core and access authentication device]
Next, the configuration of the CPU core 204 and the access authentication device 230 will be described.
FIG. 4 is a block diagram showing the configuration of the CPU core 204 and the access authentication device 230. In FIG. 4, a part of the configuration is omitted for convenience of explanation.
As shown in FIG. 4, the CPU core 204 reads (fetches) an instruction code string stored in the ROM 206 and performs data processing according to the read instruction code string. The CPU core 204 includes a control unit 204a, a calculation unit 204b, and a register 204c.

The control unit 204a controls the overall operation of the CPU 202 and outputs a control signal to the bus 218 in order to read and write instruction code strings and other data.
The arithmetic unit 204b performs an operation on the data held in the register 204c.
The register 204c holds the instruction code string read from the ROM 206 and its address, and the data processed by the arithmetic unit 204b.

The access authentication device 230 generates a jackpot decision random number and other random numbers used for game control and holds data processed by the CPU core 204. The access authentication device 230 includes an acquisition unit 231, a calculation unit 232, registers 234 and 236, and an access control unit 238.
The acquisition unit 231 includes a latch circuit and the like, and acquires an instruction code string executed by the CPU core 204 and its address from the external device control circuit 216.

The arithmetic unit 232 includes a random number generator or the like, and generates a jackpot determination random number and other random numbers used for game control and authentication information necessary for authentication.
The register 234 holds the random number and authentication information generated by the calculation unit 232. Access to the register 234 is controlled by the access control unit 238.
The register 236 holds data processed by the CPU core 204. Access to the register 236 is controlled by the access control unit 238.

  When the access control unit 238 receives a read instruction for reading data from the register 234 from the CPU core 204, the access control unit 238 determines that the access permission condition is satisfied based on the instruction code string and address of the read instruction acquired by the acquisition unit 231. At that time, reading of data from the register 234 is permitted. On the other hand, when it is determined that the access permission condition is not satisfied, reading of data from the register 234 is prohibited. Specifically, the instruction code string acquired by the acquisition unit 231 is a code string that is permitted in advance (hereinafter referred to as a permitted instruction code string), and the address of the instruction code string is an address that is permitted in advance. The data can be read from the register 234 only when it is (hereinafter referred to as a permitted address).

  When the access control unit 238 receives a write command for writing data to the register 236 from the CPU core 204, the access control unit 238 determines that the access permission condition is satisfied based on the instruction code string and address of the write command acquired by the acquisition unit 231. When writing, data writing to the register 236 is permitted. On the other hand, when it is determined that the access permission condition is not satisfied, data writing to the register 236 is prohibited. Specifically, data can be written into the register 236 only when the instruction code string acquired by the acquisition unit 231 is a permitted instruction code string and the address of the instruction code string is a permitted address.

[Access control processing]
Next, an access control process executed by the access control unit 238 will be described.
FIG. 5 is a flowchart showing the access control process.
When executing the access control process, the access control unit 238 first proceeds to step S100 as shown in FIG.
In step S100, an instruction code string executed by the CPU core 204 and its address are input from the acquisition unit 231. The process proceeds to step S102, where it is determined whether the input instruction code string is a read instruction. When it is determined that (Yes), the process proceeds to step S104.

  In step S104, it is determined whether or not the input instruction code string is a permitted read instruction. Whether or not the read instruction is permitted is determined based on whether or not the input instruction code string matches the permitted instruction code string and whether or not the address of the instruction code string is a permitted address. Only when both match, it is determined that the read instruction is permitted. As a result, when it is determined that the read instruction is permitted (Yes), the process proceeds to step S106.

In step S106, the data held in the register 234 is output to the CPU core 204. The output data is held in the register 204c of the CPU core 204.
Next, the process proceeds to step S108, where it is determined whether or not the input instruction code string is a write instruction. When it is determined that the input instruction code string is a write instruction (Yes), the process proceeds to step S110.
In step S110, it is determined whether or not the input instruction code string is a write instruction to be permitted. Whether or not the write command is permitted is determined by the same method as in step S104. As a result, when it is determined that the write command is permitted (Yes), the process proceeds to step S112.

In step S112, the data held in the register 204c of the CPU core 204 is written into the register 236, and the access control process is terminated.
On the other hand, when it is determined in step S110 that the write command is not permitted (No) and in step S108, when it is determined that the command is not a write command (No), the access control process is performed without writing data to the register 236. Exit. At this time, the CPU core 204 may make a notification indicating that there is a possibility of fraud (hereinafter referred to as fraud notification). The fraud notification may be, for example, displaying a predetermined message, mark or image on the symbol display unit 104, outputting a predetermined message sound or sound effect from the speaker 380, or the manufacturer or administrator of the CPU 202 via the I / F 212. Alternatively, an error message can be transmitted to another device, or a control signal for causing the other device to perform the display or audio output can be transmitted via the I / F 212. As a result, the main control unit 200 can make the user or the like recognize that there is a possibility of fraud, and can take measures such as investigation and repair.

  On the other hand, when it is determined in step S104 that the read command is not permitted (No) and in step S102, it is determined that the read command is not a read command (No), the data held in the register 234 is stored in the CPU core 204. The process proceeds to step S108. At this time, since there is no output from the access authentication device 230, the register 204c of the CPU core 204 holds an invalid value such as “0000” or “1111”. If the invalid value is set to a predetermined value and the value is held in the register 204c, an unauthorized notification may be performed. Here, the predetermined value is, for example, a plurality of types of fixed value groups or a variation value for which a variation rule has been defined in advance.

[ROM memory structure]
Next, the memory structure of the ROM 206 will be described.
FIG. 6 is a diagram schematically showing the memory structure of the ROM 206.
As shown in FIG. 6, the ROM 206 stores an instruction code string executed by the CPU core 204.
An address is assigned to the storage area 206a of the ROM 206 for each predetermined area (for example, for each byte). In the example of FIG. 6, addresses “0x000” to “0xNNN” are assigned to the storage area 206a, and each address indicates an area for 1 byte. For example, an instruction code string “0xABCDEFGH” (read instruction) is stored at addresses “0x100” to “0x103”. In addition, an instruction code string “0xJKLMNOPQ” (write instruction) is stored at addresses “0x104” to “0x107”.

[Game control processing]
Next, game control processing executed by the CPU core 204 will be described.
The CPU core 204 reads from the ROM 206 a control program that can execute one cycle at a predetermined operation clock (for example, 4 [ms]), and executes the game control process shown in the flowchart of FIG. 7 in accordance with the read control program.
FIG. 7 is a flowchart showing the game control process.
When the game control process is executed in the CPU core 204, first, the process proceeds to step S200 as shown in FIG.

In step S200, it is determined whether or not the power is turned on. When it is determined that the power is turned on (Yes), the process proceeds to step S202. When it is determined that the power is not turned on (No), the power is turned on. It waits at step S200 until it turns on.
In step S202, initialization processing for initializing the contents of the RAM 208 and transmitting a control command (power-on command) for instructing power-on to the effect control unit 300 and the prize ball control unit 400 via the I / F 212 is performed. Execute. When the effect control unit 300 receives the power-on command, the effect display unit 104, the lamp control unit 386, and the sound control unit 382 receive a control command for the effect at the time of power-on (specifically, display of a demonstration screen). , Control commands for instructing lamp lighting and sound output).

Next, the process proceeds to step S204, and a connected device authentication process for authenticating a device connected to the CPU 202 (hereinafter referred to as a connected device) is executed. The process proceeds to step S206, and a game ball is placed in the start winning opening 105. A winning determination process is performed to determine that a prize has been won, and the process proceeds to step S208.
In step S208, a jackpot determination process for determining a jackpot and determining a symbol variation pattern is executed, and the process proceeds to step S210 to perform an electric accessory control process for opening the opening / closing member of the prize winning port 109 in a predetermined pattern. Execute, and the process proceeds to step S212.

  In step S212, a prize ball payout control process for storing in the RAM 208 a control command for instructing the prize ball control unit 400 to pay out a game ball is executed. The process proceeds to step S214, and the I / F 212 is used. Then, a control command transmission process for transmitting the control command stored in the RAM 208 to the effect control unit 300 or the prize ball control unit 400 is executed, and the process proceeds to step S216.

In step S216, it is determined whether or not the power supply has been turned off. When it is determined that the power supply has been turned off (Yes), the process proceeds to step S218 to instruct power shutdown via the I / F 212. Is terminated to transmit the control command (power off command) to the effect control unit 300 and the prize ball control unit 400, and the game control process is terminated.
On the other hand, when it is determined in step S216 that the power is not turned off (No), the process proceeds to step S206.

[Device / PLC authentication processing]
Next, the connected device authentication process in step S204 will be described.
Various devices can be connected to the CPU 202, but a device that is not approved by the user or manufacturer is illegally connected, causing the CPU 202 to malfunction, or the data in the ROM 206 being altered or stolen. There is a fear. In order to prevent this, the CPU 202 authenticates the connected device. Since the access authentication device 230 is also closely related to the execution of the connected device authentication process, the operations of the CPU core 204 and the access authentication device 230 accompanying the execution of the connected device authentication process will be described here.

FIG. 8 is a flowchart showing the operations of the CPU core 204 and the access authentication device 230 when the connected device authentication process is executed.
As illustrated in FIG. 8, the CPU core 204 first acquires authentication data from the connected device through steps S300 and S302, and causes the access authentication device 230 to generate a verification value V using the acquired authentication data. . The verification value V is a value used for authenticating the connected device. The access authentication device 230 generates a verification value V by the calculation unit 232 and stores the verification value V in the register 234. Note that the authentication data acquired in step S300 may be used as the verification value V as it is.

Next, the CPU core 204 reads the verification value V from the register 234 of the access authentication device 230 through steps S304 and S306, and holds the read verification value V in the register 204c. Then, the CPU core 204 writes the verification value V into the register 236 of the access authentication device 230 through step S308.
Next, the CPU core 204 causes the access authentication device 230 to generate the expected value P through step S310. The expected value P is a value used for verifying the verification value V. In the access authentication device 230, the calculation unit 232 generates the expected value P and holds it in the register 234.

  The CPU core 204 reads the expected value P from the register 234 of the access authentication device 230 and the verification value V from the register 236 of the access authentication device 230 through steps S312 and S314. Then, the CPU core 204 collates the verification value V with the expected value P through steps S316 and S318, and determines whether or not the collation result is correct. Whether or not the collation result is correct is determined, for example, based on whether or not a predetermined relationship is established between the verification value V and the expected value P (for example, verification value V = expected value P).

  When it is determined that the collation result is correct (Yes), the CPU core 204 authenticates the connected device through step S320, and ends the connected device authentication process. On the other hand, when it is determined that the collation result is not correct (No), the CPU core 204 does not authenticate the connected device through step S322, and ends the connected device authentication process. When the connected device is not authenticated, the CPU core 204 performs, for example, an unauthorized notification or disconnects the connection device.

[Winning determination process]
Next, the winning determination process in step S206 will be described.
FIG. 9 is a flowchart showing a winning determination process.
When the winning determination process is executed in step S206, as shown in FIG. 9, first, the process proceeds to step S400.
In step S400, it is determined whether or not the number of winning game balls to the start winning opening 105 is “0”. If it is determined that the number of winning game balls is “0” (Yes), the process proceeds to step S402. To do.

In step S402, it is determined whether or not a predetermined time (for example, 10 minutes) has elapsed since the last winning to the start winning opening 105 using the timer 214, and when it is determined that the predetermined time has elapsed (Yes). The process proceeds to step S404.
In step S <b> 404, a customer waiting demo start process is executed in which a control command (customer waiting demo command) for instructing the production control unit 300 to start a customer waiting demo is stored in the RAM 208. When receiving the customer waiting demo command, the effect control unit 300 transmits a customer waiting demo control command to the symbol display unit 104, the lamp control unit 386, and the voice control unit 382, respectively.

Next, the process proceeds to step S406, whether the sensor signal from the start winning port detection unit 280 is read via the I / F 212, and whether it is detected that a game ball has won the start winning port 105 based on the read sensor signal. If it is determined whether or not the winning of the game ball is detected (Yes), the process proceeds to step S408.
In step S408, it is determined whether or not the number of winning game balls is “4” or more. If it is determined that the number of winning game balls is less than “4” (No), the process proceeds to step S410, and the winning is achieved. “1” is added to the number of game balls, and the process proceeds to step S412.

In step S412, the jackpot determination random number and other random numbers used for game control are read from the register 234 of the access authentication device 230, and the process proceeds to step S414, where the read random numbers are stored in predetermined areas of the RAM 208 corresponding to the number of winning game balls. Then, the series of processes is terminated and the original process is restored.
On the other hand, when it is determined in step S408 that the number of winning game balls is “4” or more (Yes) and when it is determined in step S406 that no winning of game balls is detected (No), a series of End the process and return to the original process.

  On the other hand, when it is determined in step S402 that the predetermined time has not elapsed (No) and when it is determined in step S400 that the number of winning game balls is not “0” (No), the process proceeds to step S406. To do.

[Big hit judgment processing]
Next, the jackpot determination process in step S208 will be described.
FIG. 10 is a flowchart showing the jackpot determination process.
In the jackpot determination process, in order to generate a jackpot with a predetermined probability, one jackpot value is set in a predetermined numerical range (for example, “0” to “400”) that can be taken by the jackpot determination random number, and the start winning hole 105 10 is a process of reading a jackpot determined random number at the winning timing when the game ball is won, and generating a jackpot when the read random number value matches the jackpot value, and when executed in step S208, As shown, first, the process proceeds to step S500.

In step S500, the symbol display unit 104 determines whether or not the effect symbol is changing. If it is determined that the effect symbol is not changing (No), the process proceeds to step S502, and the number of winning game balls is “1”. It is determined whether or not the number of winning game balls is “1” or more (Yes), the process proceeds to step S504.
In step S504, a jackpot determination random number is read from a predetermined area of the RAM 208 corresponding to the number of winning game balls, and the process proceeds to step S506 to determine whether or not the read random number value matches the jackpot value. When it is determined that it has been done (Yes), the process proceeds to step S508.

  In step S508, a big-hit stop symbol determination process is executed to determine the mode of the effect symbol to be stopped at the big-hit. In the jackpot stop symbol determination process, for example, the stop symbol determination random number is read from a predetermined area of the RAM 208 corresponding to the number of winning game balls, and the stop symbol number of the rank of the read random number value is stored in the ROM 206 for jackpot A control command (symbol designation command) indicating the stopped symbol number read out from the stop symbol determination table is stored in the RAM 208. Thereby, in the control command transmission process of step S218, the control command is transmitted to the effect control unit 300 via the I / F 212.

  Next, the process proceeds to step S510, and the jackpot hour variation pattern determination process is performed for determining the variation pattern of the effect symbol to be displayed variably at the jackpot. In the jackpot variation pattern determination process, for example, a variation pattern determination random number is read from the register 234 of the access authentication device 230, and the variation pattern number of the order of the read random number value is stored in the variation pattern determination table for jackpot stored in the ROM 206. The control command (design variation command) indicating the variation pattern number read out is stored in the RAM 208. Thereby, in the control command transmission process of step S218, the symbol variation command is transmitted to the effect control unit 300 via the I / F 212.

Next, the process proceeds to step S512, and a symbol variation start process for storing in the RAM 208 a control command (variation start command) for instructing the effect control unit 300 to start the variation of the effect symbol is executed, and the process proceeds to step S514. Then, “1” is subtracted from the number of winning game balls, a series of processing is terminated, and the original processing is restored.
On the other hand, when it is determined in step S506 that it does not match the jackpot value (No), the process proceeds to step S516, and a stoppage stop symbol determination process for determining a combination of effect symbols to be stopped at the time of disconnection is executed. The off-time stop symbol determination process is configured in the same manner as in step S508. The difference from step S508 is that a stop symbol determination table for loss is used.

Subsequently, the process proceeds to step S518, and a variation pattern determination process at the time of detachment is performed to determine a variation pattern of the effect symbol that is variably displayed at the time of the separation. The deviation variation pattern determination process is configured in the same manner as in step S510. The difference from step S510 is that a deviation variation pattern determination table is used.
When the process of step S518 ends, the process proceeds to step S512.

On the other hand, when it is determined in step S500 that the effect display is changing in the symbol display unit 104 (Yes), the process proceeds to step S520.
In step S520, it is determined whether or not a predetermined time (for example, 30 seconds) has elapsed since the start of the change in the effect design. If it is determined that the predetermined time has elapsed (Yes), the process proceeds to step S522. Then, a symbol stop process for storing in the RAM 208 a control command (design stop command) for instructing the effect control unit 300 to stop the effect symbol is executed, and a series of processes is terminated and the original process is restored. .

  On the other hand, when it is determined in step S520 that the predetermined time has not elapsed (No) and when it is determined in step S502 that the number of winning game balls is “0” (No), a series of processes is performed. To return to the original process.

[Electric character control processing]
Next, the electric accessory control process in step S210 will be described.
FIG. 11 is a flowchart showing the electric accessory control process.
When the electric accessory control process is executed in step S210, as shown in FIG. 11, the process first proceeds to step S600.
In step S600, it is determined whether or not it is a jackpot start timing, and when it is determined that it is a jackpot start timing (Yes), the process proceeds to step S602 and the effect control unit 300 starts a jackpot presentation. The jackpot presentation start process is executed in which a control command (a jackpot start command) for instructing is stored in the RAM 208, and the process proceeds to step S604.

In step S604, it is determined whether or not it is a big hit, and when it is determined that a big hit is made (Yes), the process proceeds to step S606 to determine whether or not it is in a round, and it is in a round. (Yes), the process proceeds to step S608.
In step S608, a special prize opening / closing control process for controlling the opening / closing of the special prize opening 109 is executed by the special prize opening / closing part 288, and a series of processes is terminated to return to the original process.

On the other hand, when it is determined in step S606 that it is not in the round (No), the process proceeds to step S610, where it is determined whether or not one round is completed, and when it is determined that one round is completed (Yes). Then, the process proceeds to step S612, "1" is added to the number of rounds, and the process proceeds to step S614.
In step S614, it is determined whether or not the number of rounds exceeds a predetermined value (for example, 15 times). When it is determined that the number of rounds does not exceed the predetermined value (No), the next step is directed to the effect control unit 300. The next round transition process is executed in which a control command (big hit continuation command) for instructing the transition to the next round is stored in the RAM 208, the series of processes are terminated, and the original process is restored.

On the other hand, when it is determined in step S614 that the number of rounds has exceeded a predetermined value (Yes), the process proceeds to step S618, and a control command for instructing the effect control unit 300 to end the jackpot effect (the jackpot end) Command) is stored in the RAM 208, a big hit effect end process is executed, a series of processes are ended, and the original process is restored.
On the other hand, when it is determined in step S610 that one round has not ended (No) and when it is determined in step S604 that it is not a big hit (No), the series of processing ends and the original processing is completed. Return to.

  On the other hand, when it is determined in step S600 that it is not the big hit start timing (No), the process proceeds to step S604.

[Operation of the present embodiment]
Next, the operation of the present embodiment will be described.
First, when power is turned on to the pachinko machine, the main control unit 200 performs initialization processing and connected device authentication processing through steps S202 and S204.
In the connected device authentication process, the connected device is authenticated by the access authentication device 230 through steps S200 to S222. As a result, the validity of the connected device can be authenticated. However, for example, a connected device authentication process may be falsified by a malicious third party so that an unauthorized device is authenticated.
For example, in step S308, the verification value V is written in the register 236 of the access authentication device 230. At this time, what is written in the register 236 is the verification value V originally held in the register 204 c of the CPU core 204. However, the value written to the register 236 can be set to a value stored in a place other than the register 204c (or an area other than the area where the verification value V is held in the register 204c) by an illegal instruction code sequence. It becomes.

For example, in step S304, the verification value V is read from the register 234 of the access authentication device 230. At this time, the value to be read can be a value stored in a place other than the register 234 (or an area other than the area in the register 234 where the verification value V is held).
These frauds can be made, for example, by branching the processing of the CPU core 204 by an illegal patch or the like.

  If such an illegal act is performed, a correct connection device authentication process cannot be performed, and an unauthorized device can be connected. Therefore, the main control unit 200 is provided with an access authentication device 230 to control access from the CPU core 204 to the registers 234 and 236. As a result, it is possible to reduce the possibility that an unauthorized device is authenticated by executing an unauthorized instruction code string.

FIG. 12 is an explanatory diagram showing an outline of access control performed by the access control unit 238. In FIG. 12, a part of the configuration is omitted for convenience of explanation.
As shown in FIG. 12, for example, it is assumed that the permitted instruction code string and the permitted address are an instruction code string “0xJKLMNOPQ” (write instruction) and an address “0x104”. At this time, the regular ROM 206 stores an instruction code string “0xJKLMNOPQ” (write instruction) at addresses “0x104” to “0x107”.

When the CPU core 204 reads and executes the instruction code string “0xJKLMNOPQ” from the addresses “0x104” to “0x107” (arrow α), the access control unit 238 permits writing of data to the register 236.
However, suppose that an illegal instruction code string “0xPOIYUTRE” (write instruction) has been written to addresses “0x200” to “0x203” as in unauthorized example 1, for example. In this case, even if the CPU core 204 reads and executes the instruction code string “0xPOIYUTRE” from the addresses “0x200” to “0x203” (arrow β), the address of the instruction code string is not a permitted address, so the access control unit 238 prohibits writing of data to the register 236 (deny write command).

  Further, for example, it is assumed that an illegal instruction code string “0xLKJHGFDS” is inserted into addresses “0x080” to “0x083” as in the illegal example 2. This illegal instruction code string is, for example, an instruction code string that changes a value written to the register 236. However, due to the insertion of this illegal instruction code string, the addresses of the instruction code string “0xJKLMNOPQ” (write instruction) that is originally permitted to be executed are “0x108” to “0x10B”.

  Therefore, even if the CPU core 204 reads and executes the instruction code string “0xJKLMNOPQ” from the addresses “0x108” to “0x10B” (arrow γ), the address of the instruction code string is not a permitted address, so the access control unit 238 Prohibits the writing of data to the register 236 (denies the write command). At this time, the CPU core 204 may perform fraud notification. As a result, even if the write value is changed by execution of the illegal instruction code string “0xLKJHGFDS”, the value is not written to the register 236, so that the possibility of an illegal act can be reduced.

On the other hand, the access control unit 238 can reduce the possibility that the CPU 202 malfunctions due to a bit error in addition to the above-mentioned fraudulent acts.
FIG. 13 is an explanatory diagram showing an outline of access control performed by the access control unit 238.
As illustrated in FIG. 13, for example, the permitted instruction code string and the permitted address include an instruction code string “0xABCDEFGH” (read instruction) and an address “0x100”, and an instruction code string “0xABCDEFGI” (write instruction) and an address “0x104”. ”. At this time, the normal ROM 206 stores an instruction code string “0xABCDEFGH” (read instruction) at addresses “0x100” to “0x103”.

When the CPU core 204 reads the instruction code string, a bit error (for example, “1” becomes “0”) may occur in the instruction code string. As a result, the instruction code string “0xABCDEFGH” (read instruction) read from the addresses “0x100” to “0x103” by the CPU core 204 may be replaced with, for example, the instruction code string “0xABCDEFGI” (write instruction) ( Arrow δ). In this case, if the CPU core 204 executes the instruction code string “0xABCDEFGI” (write instruction), the data in the access authentication device 230 may be rewritten in an unexpected manner.
However, even if the instruction code string of such a write instruction is executed (arrow ε), the address of the instruction code string is not a permitted address, so the access control unit 238 prohibits writing of data to the register 236. (Reject write command).

Next, a case where a game is played with a pachinko machine will be described.
When the connected device is authenticated, the main control unit 200 repeatedly executes a winning determination process, a jackpot determination process, an electric accessory control process, and a control command transmission process at predetermined intervals through steps S206 to S214. As a result, the pachinko machine is in a playable state. A player can play a game by loading a rented game ball into a pachinko machine and operating the launch unit 482 to fire the game ball onto the game board 101.

  When the game ball launched on the game board 101 wins the start winning opening 105, the main control unit 200 acquires a big hit determination random number from the access authentication device 230 at the winning timing. This jackpot-determined random number can also be acquired only when access is permitted by the access authentication device 230, as in the case of the connected device authentication process. That is, it can be acquired only when the instruction code string relating to the acquisition of the jackpot determination random number is a permitted instruction code string and the address of the instruction code string is a permitted address. The same applies to other random numbers used for game control. Then, when the jackpot determination random number is successfully acquired, if the acquired random number value matches the jackpot value, the jackpot is determined.

When the jackpot is reached, through steps S508 and S510, the stop pattern of the effect symbol and the variation pattern at the jackpot are determined. Then, the effect symbol is variably displayed in a predetermined variation pattern, and after the predetermined variation time has elapsed, the effect symbol stops at the jackpot symbol. After the stoppage of the effect design, the jackpot effect is started.
During the big hit, the big winning opening 109 is opened in a predetermined opening / closing pattern, and when a game ball wins the big winning opening 109, a predetermined number of gaming balls are paid out as one winning ball.

[Effect of this embodiment]
In this way, in the present embodiment, the access authentication device 230 includes the registers 234 and 236, the instruction code sequence executed by the CPU core 204 and the address thereof, the acquisition unit 231 that acquires the address, and the instruction acquired by the acquisition unit 231. And an access control unit 238 for controlling access to the registers 234 and 236 by the CPU core 204 based on the code string and the address.

  This can reduce the possibility that the data in the registers 234 and 236 will be illegally rewritten or read out, thereby reducing the possibility that an illegal operation or an illegal operation due to an error will be performed. . In addition, since the access authentication device 230 that is separate from the CPU 202 realizes the access control function, the CPU core 204 itself does not need to perform unauthorized operation detection processing, and is more difficult to develop and design than in the past. It can be suppressed. Furthermore, since access is controlled based on the instruction code string and its address, it is not necessary to prepare a table having the same capacity as the ROM 206, and it is possible to suppress an increase in data capacity compared to the conventional case.

  Further, in the case of adopting the CPU 202 that is a one-chip type microprocessor made of DIP or the like, in a configuration in which the CPU core 204 performs an unauthorized operation detection process, if an unauthorized action is performed such that the CPU 202 is entirely replaced, the CPU Since the core 204 itself is exchanged, the validity of the CPU 202 cannot be authenticated. On the other hand, in this embodiment, since the access authentication device 230 is provided separately from the CPU 202, it is possible to authenticate the validity of the CPU 202 even if such an illegal act is performed.

  Further, when the CPU 202, which is a one-chip type microprocessor made of DIP or the like, is adopted, the CPU 202 is newly developed, designed, etc. in the configuration in which the circuit for realizing the access restriction function of the access authentication device 230 is built in the CPU 202. And must not be applied to existing CPUs. On the other hand, in this embodiment, it is only necessary to connect the access authentication device 230 to the CPU 202, so that the present invention can also be applied to an existing CPU.

Furthermore, in this embodiment, the access control unit 238 registers the register 234 only when the instruction code string acquired by the acquisition unit 231 is a permitted instruction code string and the address of the instruction code string is a permitted address. 236 is permitted.
As a result, an illegally rewritten instruction code string, an instruction code string whose contents have been changed due to a bit error, or an instruction code string stored at an illegal address are executed, whereby the data in the registers 234 and 236 are illegally stored. Since the possibility of being rewritten or read can be reduced, the possibility of an unauthorized operation can be further reduced.

Furthermore, in this embodiment, fraud notification is performed according to the access control status by the access authentication device 230.
Thereby, it is possible to grasp that there is a possibility that an illegal operation has been performed.
Furthermore, in this embodiment, the access authentication device 230 is applied to the CPU core 204 of the main control unit 200.

Thereby, it is possible to reduce the possibility that the CPU core 204 of the main control unit 200 operates illegally. Since the main control unit 200 performs main control that is the basis of the game, the security effect is high.
In the first embodiment, the symbol display unit 104 corresponds to the symbol display unit of the invention 1, 11 or 12, the main control unit 200 corresponds to the main control unit of the invention 10, and the CPU core 204 The ROM 206 corresponds to the instruction code storage means of the invention 4, corresponding to the data processing means of the inventions 1, 3, 4, 10 to 12. The acquisition unit 231 corresponds to the acquisition unit of the inventions 1 to 4, the registers 234 and 236 correspond to the storage unit of the invention 1, 2, 11 or 12, and the access control unit 238 and steps S102 to S112 are This corresponds to the access control means of the invention 1, 2 or 9.

  In the first embodiment, steps S102 to S112 correspond to the access control step of invention 11 or 12, and steps S412, S414, S504 and S506 correspond to the lottery means of invention 1, 11 or 12. Step S512 corresponds to the symbol variation means of the invention 1, 11 or 12.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to the drawings. 14 to 16 are views showing a second embodiment of the gaming machine, the game control program, and the game control method according to the present invention.
The present embodiment is based on the check value calculated from the instruction code string in addition to the instruction code string and its address executed by the CPU core 204, compared to the first embodiment. The point of controlling access is different. Hereinafter, only the parts different from the first embodiment will be described, and the same parts as those in the first embodiment will be denoted by the same reference numerals and the description thereof will be omitted.

[Configuration of main controller]
First, the configuration of the main control unit 200 will be described.
FIG. 14 is a block diagram illustrating a configuration of the main control unit 200.
As shown in FIG. 14, the CPU 202 calculates the check value from the instruction code string in addition to the CPU core 204, ROM 206, RAM 208, security inspection circuit 210, I / F 212, timer 214 and external device control circuit 216. A portion 220 is included. These are connected to each other via a bus 218.

  The check value calculation unit 220 acquires an instruction code string from the ROM 206. Then, a check value for checking the validity of the instruction code string is calculated from the acquired instruction code string. The check value is used for access control by the access control unit 238. Here, the check value is a value calculated from a part or all of the instruction code or instruction code string, a part of one instruction code, or a combination thereof stored in the ROM 206. The check value calculation unit 220, for example, performs error detection calculation such as calculation using a hash function, parity check, cyclic redundancy check (CRC (Cyclic Redundancy Check)) or checksum for all instruction code strings stored in the ROM 206. To calculate the check value. As described above, the check value is calculated from the instruction code string actually stored in the ROM 206. Therefore, by performing verification using the check value, it is possible to detect unauthorized rewriting of the instruction code sequence stored in the ROM 206, unauthorized replacement of the ROM 206, and the like.

The acquisition unit 231 acquires from the external device control circuit 216 the instruction code sequence executed by the CPU core 204 and its address, and the check value calculated by the check value calculation unit 220. At this time, the check value may be obtained by being divided into a plurality of parts. In this case, the check values are combined by combining the divided data.
The access control unit 238 determines that the instruction code sequence acquired by the acquisition unit 231 is a permitted instruction code sequence, the address of the instruction code sequence is a permitted address, and the check value acquired by the acquisition unit 231 is a check value. Access to the registers 234 and 236 is permitted only when there is a predetermined relationship with the expected value. The predetermined relationship is, for example, that the check value matches the expected value, that the calculated value obtained by calculating one of the check value and the expected value by the predetermined calculation method matches the other, the check value and the expected value Means that there is a magnitude relationship or other correlation. In this way, by combining the collation of the instruction code string and address with the collation of the check value, the possibility of an illegal operation can be further reduced.

  The expected value used by the access control unit 238 for verification is stored in the access control unit 238 in advance (for example, at the time of manufacture). In addition, an expected value used for collation by the access control unit 238 may be transmitted to the access control unit 238 from another component unit. The other components are, for example, a CPU core 204 and a dedicated processing unit (hereinafter referred to as an expected value calculation unit) for generating an expected value of a check value. The CPU core 204 and the expected value calculation unit may transmit an expected value stored in advance to the access control unit 238, or may generate an expected value for each matching process. Further, a coefficient or the like necessary for calculating an expected value may be received from an external device via the I / F 212 to the CPU core 204 or the expected value calculation unit. As described above, if the access control unit 238 obtains the expected value from another component without storing it in advance, the check value of the ROM 206 can be changed later.

[Check value calculation processing]
Next, a check value calculation process executed by the check value calculation unit 220 will be described.
FIG. 15 is a flowchart showing the check value calculation process.
When the check value calculation unit 220 executes the check value calculation process, first, as illustrated in FIG. 15, the process proceeds to step S700.
In step S700, it is determined whether or not a check value acquisition request has been received from the access control unit 238. When it is determined that a check value acquisition request has been received (Yes), the process proceeds to step S702. (No), the process waits in step S700 until a check value acquisition request is received.

  In step S702, the instruction code string is read from the ROM 206, the process proceeds to step S704, the error detection calculation is performed on the read instruction code string, the check value is calculated, and the process proceeds to step S706, where the calculated check The value is transmitted to the access control unit 238, and the check value calculation process ends.

[Access control processing]
Next, an access control process executed by the access control unit 238 will be described.
FIG. 16 is a flowchart showing the access control process.
When executing the access control process, the access control unit 238 first proceeds to step S800 as shown in FIG.
In step S800, an instruction code string executed by the CPU core 204 and its address are input from the acquisition unit 231. The process proceeds to step S802, where it is determined whether the input instruction code string is a read instruction. When it is determined that (Yes), the process proceeds to step S804.

In step S804, it is determined whether the input instruction code string is a permitted read instruction. Whether or not the read instruction is permitted is determined by the same method as in step S104. As a result, when it is determined that the read instruction is permitted (Yes), the process proceeds to step S806.
In step S806, a check value acquisition request is transmitted to the check value calculation unit 220, the process proceeds to step S808, the check value acquired by the acquisition unit 231 is input from the acquisition unit 231 as a response, and the process proceeds to step S810. .

In step S810, the expected value of the check value is acquired by reading the expected value stored in the access control unit 238 or by receiving the expected value generated by the CPU core 204 or the expected value calculating unit. Control goes to step S812.
In step S812, it is determined whether or not the input check value matches the acquired expected value. If it is determined that the check value matches the expected value (Yes), the process proceeds to step S814. , The data held in the register 234 is output to the CPU core 204. The output data is held in the register 204c of the CPU core 204.

Next, the process proceeds to step S816, where it is determined whether or not the input instruction code string is a write instruction. If it is determined that the input instruction code string is a write instruction (Yes), the process proceeds to step S818.
In step S818, it is determined whether the input instruction code string is a write instruction to be permitted. Whether or not the write command is permitted is determined by the same method as in step S104. As a result, when it is determined that the write command is permitted (Yes), the process proceeds to step S820.

In steps S820 to S824, processing similar to that in steps S806 to S810 is executed, and the process proceeds to step S826.
In step S826, it is determined whether or not the check value matches the expected value. When it is determined that the check value matches the expected value (Yes), the process proceeds to step S828 and the CPU core 204 The data held in the register 204c is written to the register 236, and the access control process is terminated.

  On the other hand, if it is determined in step S826 that the check value does not match the expected value (No), if it is determined in step S810 that it is not an allowed write command (No), and in step S808, it is not a write command. When the determination is made (No), the access control process is terminated without writing data to the register 236. At this time, the CPU core 204 may perform fraud notification.

  On the other hand, if it is determined in step S812 that the check value does not match the expected value (No), if it is determined in step S804 that the read command is not permitted (No), and in step S802, it is not a read command. When the determination is made (No), the data held in the register 234 is not output to the CPU core 204, and the process proceeds to step S808. At this time, an illegal value is held in the register 204c of the CPU core 204, but if the value is a predetermined value, an unauthorized notification may be performed.

[Effect of this embodiment]
As described above, in this embodiment, the check value calculation unit 220 that calculates the check value from the instruction code sequence stored in the ROM 206 is provided, and the access control unit 238 allows the instruction code sequence acquired by the acquisition unit 231 to be permitted. Only when it is an instruction code string, the address of the instruction code string is a permitted address, and the check value acquired by the acquisition unit 231 is in a predetermined relationship with the expected value of the check value, to the registers 234 and 236 Allow access.

As a result, it is possible to detect that the instruction code string stored in the ROM 206 has been illegally rewritten. Further, by combining the collation of the instruction code string and address with the collation of the check value, the possibility of an illegal operation can be further reduced. Note that check value verification is performed in combination with instruction code string and address verification, so that even if an error detection operation (for example, parity check) with a relatively low processing load is used for calculation of the check value, a certain degree of accuracy can be obtained. Obtainable.
In the second embodiment, the ROM 206 corresponds to the instruction code storage unit of the invention 5, the check value calculation unit 220 corresponds to the calculation unit of the invention 5, and the acquisition unit 231 corresponds to the acquisition unit of the invention 5. It corresponds.

[Other Embodiments]
In the second embodiment, the access authentication device 230 is configured to calculate the check value from the instruction code string. However, the present invention is not limited to this, and the following three configurations can be employed.
(1) First Configuration In the first configuration, a check value is calculated from data stored in the ROM 206 (hereinafter referred to as first calculation basic data) instead of an instruction code string. The first calculation basic data is, for example, a predetermined fixed value stored in the ROM 206. The first calculation basic data is not limited to a fixed value, and may be fluctuation data that can accurately predict data values before and after the fluctuation. To be able to accurately predict the data values before and after the fluctuation specifically refers to, for example, a case where the fluctuation range is fixed or a fluctuation rule is fixed.

The check value calculation unit 220 reads the first calculation basic data from the ROM 206, and calculates the check value from the read first calculation basic data.
The access control unit 238 stores the expected value of the first calculation basic data in advance. The access control unit 238 calculates a check value from the expected value, and determines whether or not the check value acquired by the acquisition unit 231 has a predetermined relationship with the calculated check value. In addition, it may be determined whether the check value acquired by the acquisition unit 231 has a predetermined relationship with the expected value. Note that access control may be performed based on both the check value calculated from the instruction code string and the check value calculated from the first calculation basic data.
As a result, it is possible to detect that the ROM 206 has been replaced with an illegal one.
In this case, the ROM 206 corresponds to the instruction code storage unit of the sixth aspect, the check value calculation unit 220 corresponds to the calculation unit of the sixth aspect, and the acquisition unit 231 corresponds to the acquisition unit of the sixth aspect.

(2) Second Configuration In the second configuration, a check value is calculated from an execution result of an instruction code sequence executed by the CPU core 204 (hereinafter referred to as second calculation basic data) instead of an instruction code sequence. The second calculation basic data is, for example, the value of the flag register of the CPU core 204. Note that the second calculation basic data is not limited to the value of the flag register, and is a return value of a function that returns the first value when the instruction code string is correctly executed, and otherwise returns the second value. Also good.

The check value calculation unit 220 acquires second calculation basic data from a flag register or the like, and calculates a check value from the acquired second calculation basic data.
The access control unit 238 can be configured in the same manner as in the first configuration. Note that access control may be performed based on the check value calculated from the first calculation basic data.

Further, the second calculation basic data may be used as it is without calculating the check value from the second calculation basic data. That is, the access control unit 238 has the instruction code string acquired by the acquisition unit 231 as a permitted instruction code string, the address of the instruction code string is a permitted address, and the second calculation basic data is a predetermined value. Allow access only at certain times.
As a result, there is a possibility that the data in the registers 234 and 236 may be illegally rewritten or read by executing an illegally rewritten instruction code string or an instruction code string whose contents have changed due to a bit error. Since it can reduce, possibility that an unauthorized operation will be performed can further be reduced.
In this case, the CPU core 204 corresponds to the data processing means of the seventh aspect, and the acquisition unit 231 corresponds to the acquisition means of the seventh aspect.

(3) Third Configuration In the third configuration, a check value is calculated from the address of the instruction code string (hereinafter referred to as third calculation basic data) instead of the instruction code string.

The check value calculation unit 220 acquires third calculation basic data from the bus 218 or the like, and calculates a check value from the acquired third calculation basic data.
The access control unit 238 can be configured in the same manner as in the first configuration. Note that access control may be performed based on a check value calculated from one or both of the first calculation basic data and the second calculation basic data.

In the second embodiment, the access permission condition is that the instruction code string acquired by the acquiring unit 231 is a permitted instruction code string, the address of the instruction code string is a permitted address, and acquisition is performed. The check value acquired by the unit 231 has a predetermined relationship with the expected value of the check value. However, the present invention is not limited to this. (1) The instruction code sequence acquired by the acquisition unit 231 is a permitted instruction code sequence. 2) The address of the instruction code string is a permitted address, or (3) one or any combination of two of the check values acquired by the acquisition unit 231 being in a predetermined relationship with the expected value of the check value It can also be. Even when the first calculation basic data or the second calculation basic data is used, the access permission condition can be set by any combination of (1) to (3).
In the first and second embodiments, the access authentication device 230 is provided in the main control unit 200. However, the present invention is not limited to this, and the following three configurations can be employed.

(1) First Configuration The first configuration is a configuration in which the access authentication device 230 is provided in the effect control unit 300.
FIG. 17 is a block diagram showing the configuration of the effect control unit 300. As shown in FIG.
As shown in FIG. 17, the access authentication device 230 is connected to a bus to which the CPU 302 of the effect control unit 300 is connected. The acquisition unit 231 acquires an instruction code string executed by the CPU 302 and its address from the bus.
Thereby, possibility that CPU302 of the production | presentation control part 300 will operate | move illegally can be reduced.

The effect control unit 300 can include a CPU that is a one-chip type microprocessor made of DIP or the like, similar to the CPU 202, instead of the CPU 302, ROM 304, RAM 306, VRAM 308, and I / F 310. In this case, the access authentication device 230 has the same connection relationship as in the first and second embodiments.
In this case, the effect control unit 300 corresponds to the effect control means of the tenth aspect.

(2) Second Configuration The second configuration is a configuration in which the access authentication device 230 is provided in the prize ball control unit 400.
FIG. 18 is a block diagram illustrating a configuration of the prize ball control unit 400.
As shown in FIG. 18, the access authentication device 230 is connected to a bus to which the CPU 402 of the prize ball control unit 400 is connected. The acquisition unit 231 acquires an instruction code string executed by the CPU 402 and its address from the bus.
As a result, the possibility that the CPU 302 of the prize ball control unit 400 operates illegally can be reduced.

The prize ball control unit 400 may include a CPU that is a one-chip type microprocessor made of DIP or the like, similar to the CPU 202, instead of the CPU 402, the ROM 404, the RAM 406, and the I / F 410. In this case, the access authentication device 230 has the same connection relationship as in the first and second embodiments.
In this case, the prize ball control unit 400 corresponds to the payout control means of the tenth aspect.

(3) Third Configuration The third configuration is a configuration in which the access authentication device 230 is built in the CPU 202.
FIG. 19 is a block diagram illustrating a configuration of the main control unit 200.
The access authentication device 230 is connected to the bus 218 as shown in FIG. The acquisition unit 231 acquires an instruction code string executed by the CPU core 204 and its address from the bus 218.
In the first and second embodiments, the access control unit 238 is configured to control access to the registers 234 and 236. However, the present invention is not limited to this, and a specific address of the registers 234 and 236 is used. It can also be configured to control access to the space.

Thus, by controlling access to the address space in which important information such as confidential information is stored in the registers 234 and 236, the possibility that the important information is illegally rewritten or read is reduced. Therefore, the possibility of unauthorized operation can be further reduced.
In the first and second embodiments, the read, execute, determination and other processes are performed in units of instruction code strings. However, the present invention is not limited to this, and read and execute in units of instruction codes. Further, it can be configured to perform determination and other processing. The same applies to the other embodiments described above. As a representative example, access is permitted only when the acquired instruction code is a previously permitted code and the address of the instruction code is a permitted address. For the combination of access permission conditions, the same combination as in the case of the instruction code string can be adopted.

  In the first and second embodiments, only one access authentication device 230 is provided. However, the present invention is not limited to this, and a plurality of access authentication devices 230 may be provided. In the case of two devices, for example, the first access authentication device is configured to include an acquisition unit 231, a calculation unit 232, a register 234, and an access control unit 238. The second access authentication device includes an acquisition unit 231, a calculation unit 232, a register 236, and an access control unit 238. In this case, the access control unit 238 may be provided only in one of the access authentication devices.

In the second embodiment, the check value calculation unit 220 is configured to calculate the check value in response to the check value acquisition request. However, the check value calculation unit 220 is not limited to this, and the check value calculation unit 220 checks when a predetermined condition is satisfied. A value may be calculated, and the calculated check value may be transmitted to the access control unit 238.
In the first and second embodiments described above, the case where the control program stored in advance in the ROM 206 is executed when executing the game control processing shown in the flowcharts of FIGS. However, the present invention is not limited to this, and the program may be read into the RAM 208 and executed from the storage medium storing the program showing these procedures. The same applies to the processing shown in the flowcharts of FIGS.

  Here, the storage medium is a semiconductor storage medium such as RAM or ROM, a magnetic storage type storage medium such as FD or HD, an optical reading type storage medium such as CD, CDV, LD, or DVD, or a magnetic storage type such as MO. / Optical reading type storage media, including any storage media that can be read by a computer regardless of electronic, magnetic, optical, or other reading methods.

  In the first and second embodiments, the case where the present invention is applied to a pachinko machine has been described. However, the present invention is not limited to this, and a pachislot machine and an amusement game machine are within the scope of the present invention. It can be applied to other game machines.

1 is a front view of a game board 101. FIG. 2 is a block diagram showing a configuration of a game control device 100. FIG. 3 is a block diagram showing a configuration of a main control unit 200. FIG. FIG. 3 is a block diagram showing a configuration of a CPU core 204 and an access authentication device 230. It is a flowchart which shows an access control process. 3 is a diagram schematically showing a memory structure of a ROM 206. FIG. It is a flowchart which shows a game control process. It is a flowchart which shows operation | movement of CPU core 204 and the access authentication apparatus 230 accompanying execution of a connection apparatus authentication process. It is a flowchart which shows a winning determination process. It is a flowchart which shows a jackpot determination process. It is a flowchart which shows an electric accessory control process. It is explanatory drawing which shows the outline | summary of the access control which the access control part 238 performs. It is explanatory drawing which shows the outline | summary of the access control which the access control part 238 performs. 3 is a block diagram showing a configuration of a main control unit 200. FIG. It is a flowchart which shows a check value calculation process. It is a flowchart which shows an access control process. 4 is a block diagram showing a configuration of an effect control unit 300. FIG. 3 is a block diagram showing a configuration of a prize ball control unit 400. FIG. 3 is a block diagram showing a configuration of a main control unit 200. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 ... Game board, 102a, 102b ... Rail, 103 ... Game area, 104 ... Symbol display part, 105 ... Start winning opening, 106 ... Winning gate, 107 ... Normal winning opening, 109 ... Large winning opening, 108 ... Collection opening, DESCRIPTION OF SYMBOLS 100 ... Game control apparatus, 200 ... Main control part, 280 ... Start winning opening detection part, 282 ... Gate detection part, 284 ... Normal winning opening detection part, 286 ... Large winning opening detection part, 288 ... Large winning opening opening / closing part, 202, 302, 402 ... CPU, 204 ... CPU core, 204a ... control unit, 204b, 232 ... calculation unit, 204c, 234, 236 ... register, 206, 304, 404 ... ROM, 206a ... storage area, 208, 306, 406 ... RAM, 210 ... Security inspection circuit, 212, 310, 410 ... I / F, 214 ... Timer, 216 ... External device control circuit, 218 ... Bus, 220 ... Check value calculation unit, 230 ... Access authentication device, 231 ... Acquisition unit, 238 ... Access control unit, 240 ... Inspection port, 300 ... Production control unit, 380 ... Speaker, 382 ... Voice control unit, 384 ... Lamp, 386 ... Lamp control unit, 308 ... VRAM, 312 ... Production related device group, 400 ... Prize ball control unit, 480 ... Dispensing unit, 482 ... Launching unit, 412 ... Prize ball related device group

Claims (12)

A lottery means for performing a lottery to determine whether or not a special prize state is generated when a predetermined condition is satisfied, a symbol changing means for variably displaying a symbol on the symbol display means, and a data processing means for performing data processing relating to a game, When it is determined that the special prize state is generated by the lottery means, the gaming machine generates the special prize state after stopping the symbol in a predetermined manner,
Storage means for storing data for performing the data processing;
Obtaining means for obtaining information relating to an instruction executed by the data processing means;
A gaming machine comprising: an access control unit that controls access to the storage unit by the data processing unit based on information about the command acquired by the acquiring unit. In claim 1,
When the access control means determines that the access permission condition is satisfied based on the information related to the instruction acquired by the acquisition means, the access control means permits access to the storage means and determines that the access permission condition is not satisfied Is a game machine that restricts access to the storage means. In claim 2,
The acquisition unit acquires an instruction code or an instruction code string executed by the data processing unit,
The gaming machine characterized in that the access permission condition includes that the instruction code or instruction code string acquired by the acquiring means is a predetermined code or code string. In any one of Claim 2 and 3,
Further comprising instruction code storage means for storing the instruction code;
The acquisition means acquires storage position information indicating a storage position in the instruction code storage means of an instruction code or an instruction code string executed by the data processing means,
The access permission condition includes that the storage position of the storage position information acquired by the acquisition unit is a predetermined storage position. In any one of Claim 2 and 3,
Instruction code storage means for storing the instruction code;
A calculation means for performing a predetermined calculation using at least a part of the instruction code or the instruction code string stored in the instruction code storage means;
The acquisition unit acquires a calculation result of the calculation unit,
The gaming machine characterized in that the access permission condition includes that the calculation result acquired by the acquisition means is a predetermined result. In any one of Claim 2 and 3,
Instruction code storage means for storing the instruction code;
A calculation unit that performs a predetermined calculation using a predetermined fixed value stored in the instruction code storage unit;
The acquisition unit acquires a calculation result of the calculation unit,
The gaming machine characterized in that the access permission condition includes that the calculation result acquired by the acquisition means is a predetermined result. In any one of Claims 2 thru | or 6,
The acquisition unit acquires execution result information indicating an execution result of an instruction code or an instruction code string executed by the data processing unit,
The gaming machine characterized in that the access permission condition includes that the execution result of the execution result information acquired by the acquisition means is a predetermined result. In any one of Claims 1 thru | or 7,
The access control means controls access to a specific address space in the storage means. In any one of Claims 1 thru | or 8,
A gaming machine, further comprising a control status notification means for notifying a control status of access by the access control means. In any one of Claims 1 thru | or 9,
The data processing means includes main control means for performing main control of the game, effect control means for performing effect control of the game by control of the main control means, or payout control for performing payout control of the game medium by control of the main control means. A game machine characterized by being a data processing means. A lottery means for performing a lottery to determine whether or not a special prize state is generated when a predetermined condition is established, a symbol changing means for variably displaying a symbol on the symbol display means, a data processing means for performing data processing relating to a game, and the data A storage device for storing data for processing, and when the lottery means determines that the special prize state is to be generated, the gaming machine that generates the special prize state after stopping the symbol in a predetermined manner A game control program applied to
An acquisition step of acquiring information relating to an instruction executed by the data processing means;
A game for causing a computer to execute a process including an access control step for controlling access to the storage unit by the data processing unit based on information about the instruction acquired in the acquiring step Control program. A lottery means for performing a lottery to determine whether or not a special prize state is generated when a predetermined condition is established, a symbol changing means for variably displaying a symbol on the symbol display means, a data processing means for performing data processing relating to a game, and the data A storage device for storing data for processing, and when the lottery means determines that the special prize state is to be generated, the gaming machine that generates the special prize state after stopping the symbol in a predetermined manner A game control method applied to
An acquisition step of acquiring information relating to an instruction executed by the data processing means;
A game control method comprising: an access control step of controlling access to the storage means by the data processing means based on information relating to the command obtained in the obtaining step.

Images