JP4723018B2 - Game machine - Google Patents

Description

  The present invention relates to a gaming machine that controls a game using a game control device.

  Some gaming machines use a control device to control the progress of the game. In such a control device, various counters that are updated as the control progresses are used, and based on the counter value, the content of the control related to the game (the content of the effect executed as a result of the control) is selected. May be. For example, in a pachinko machine, the progress of the game is comprehensively controlled by sending control commands (display control commands, etc.) from the game control device to various subordinate control devices (display control devices, etc.). The content of the control command is determined on the basis of the counter value that is updated each time the main routine is looped.

  However, in such a gaming machine, the counter for determining the control related to the game is updated for each main routine of the game control, so there is regularity in updating the counter for the progress of the game control. As a result, there is a possibility that the counter value acquired for determining the control related to the game is biased. If the counter value acquisition is biased, the control content determined based on the counter value is also biased. In other words, in obtaining the counter value, there is a risk that only the same counter value may be obtained. As a result, the control (effect) of various variations that are originally provided in the gaming machine is not performed, and the same value is obtained. There is a risk that control may be executed unevenly.

  The present invention has been made paying attention to such problems, and in a gaming machine equipped with a control device that performs control related to gaming, various variations of control that can be originally performed by the gaming machine are executed without bias. The purpose is to provide what can be obtained.

The present invention can display a plurality of symbols on a display device based on a winning at a start opening, and can generate a special gaming state advantageous to a player when the result of the variation display is a predetermined symbol combination mode. In a game machine, a CPU that controls game control, a ROM that stores a game control program, a RAM that can store various data even when a power failure occurs due to a backup power supply, and signals between the CPU and various devices And a power failure detection circuit that outputs a power failure detection signal notifying that a power failure has occurred when a power failure occurs, and the CPU includes a main process including a loop process that is repeatedly executed. And an interrupt process that is executed every time the interrupt timer expires for the main process. Check data storage process for storing check data used for determining whether or not the battery is normal in a predetermined area of the RAM, and an interrupt disabled state for prohibiting execution of the interrupt process based on a power failure detection signal from the power failure detection circuit Or a power failure occurrence process for storing state information indicating one of the interrupt permission states permitting the execution of the interrupt process in the RAM, and storing the information in the RAM to display the display device. An effect random number counter updating process for updating an effect random number counter for determining an effect pattern for screen display is executed in both the main process and the interrupt process, and the main process is executed prior to the loop process. When the power supply is restored, the stored data in the RAM is normal with reference to the check data. A state recovery process for recovering to the interrupt disabled state or the interrupt enabled state based on the state information when it is determined normal, and executed in the loop process and stored in the RAM. A big hit initial value random number counter updating process for updating the big hit initial value random number counter, and the interrupt process sets the interrupt to a disabled state at the beginning of the interrupt process, and then receives a game ball prize at the start opening. A special symbol random number counter that circulates and updates a special symbol random number counter that is stored in the RAM and determines whether or not to generate the special gaming state within a predetermined range. An update process, and a step of setting the value of the jackpot initial value random number counter as a new initial value of the round in the special symbol random number counter. When the special symbol random number counter makes a round and returns to the loop initial value, the loop initial value changing process is executed to execute the step, and the input process is executed before the loop initial value changing process. By doing so, it is configured not to include a step that branches from the beginning of the interrupt routine until the input processing is executed, and a game ball winning detection signal to the start port is provided every time the interrupt timer expires. It is characterized by being taken in at predetermined intervals .

  According to the present invention, by updating the production random number counter in the main routine and the interrupt routine, the number of production random number counters updated per loop of the main routine can vary (because it is irregular). The screen display effect pattern in the display device display determined based on the effect random number counter is executed without any bias based on the regularity of the update. That is, as a result of the lack of regularity in updating the effect random number counter, not only a specific pattern is executed among various patterns that can be performed by the game control device, but various patterns are executed without bias. Therefore, control with variations is realized and the interest of the game is enhanced.

  Further, since the effect pattern of screen display in the display device is determined based on the value of the effect random number counter, the effect pattern is selected without bias. Therefore, display with variations is performed on the display device, so that the fun of the game is enhanced.

It is a front view which shows the game machine in embodiment of this invention. It is a back view which similarly shows a gaming machine. It is a block diagram which similarly shows a control system. It is a flowchart which similarly shows the process sequence of a game control main process. It is a flowchart which similarly shows the process sequence (main routine part) of a game control main process. It is a flowchart which similarly shows the process sequence of a special symbol game process. It is a flowchart which shows the process sequence of a normal interruption process similarly. It is a flowchart which similarly shows the process sequence of the game random number update process. It is a flowchart which shows the process sequence (main routine part) of the game control main process in other embodiment of this invention. It is a flowchart which shows the process sequence (main routine part) of the game control main process in further another embodiment of this invention. It is a flowchart which shows the process sequence of a normal interruption process similarly.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 shows a front view of a ball game machine.

  As shown in the drawing, a front frame (inner frame) 3 is attached to the front surface of the main body frame (outer frame) 2 of the ball game machine 1 by an upper hinge 4A and a lower hinge 4B so as to be opened and closed. A game board 10 is attached to the front frame 3.

  A glass frame 5 fitted with a transparent glass 5A is attached to the front of the front frame 3 so that it can be opened and closed. The front of the game board 10 is covered with glass, and the game area 11 on the front of the game board 10 is seen through the transparent glass 5A. It can be seen.

  The glass frame 5 is provided with a key device 5B, and the front frame 3 and the glass frame 5 are usually locked. The opening of the front frame 3 is detected by a metal frame opening sensor (not shown).

  The game board 10 can be detached from the front frame 3 and can be separated from the main body of the ball and ball machine (configuration other than the game board 10 of the ball and ball machine). Thereby, the type of game determined by the type of game board 10 can be changed.

  A display device (image display device) 20 is disposed almost at the center of the game area 11. The display device 20 is controlled by the display control device 150 (see FIG. 3) and performs variable image display corresponding to the progress state of the game. For example, the display device 20 is identification information representing the game state as a main display. Three symbols (special symbol) of right symbol, middle symbol and left symbol are displayed on the liquid crystal screen. As these special symbols, for example, 16 numbers ("0" to "F") expressed in hexadecimal notation are displayed, and the band made up of these numbers can be displayed while being scrolled. It has become. The display screen portion of the display device 20 is composed of, for example, an LCD (Liquid Crystal Display), a CRT (Brown Tube) or the like.

  In addition, a special symbol memory display 21 composed of four LEDs is provided at the bottom of the display device 20. The special symbol memory display 21 displays the accumulated number of special symbol winning memories to be described later.

  Below the display device 20, a special variable winning device 12 having a large winning opening inside is arranged. The special variation winning device 12 is opened and closed by energizing a special winning opening solenoid 12A (see FIG. 3).

  In the vicinity of the display device 20 and the special variable winning device 12, a plurality of general winning ports 13 are provided, and between the display device 20 and the special variable winning device 12, a starting port 14 is provided. In addition, a discharge port (out port) 16 is provided at the lowermost end of the game area 11.

  The game balls that have been driven into the game area 11 flow down the surface of the game area 11 while changing the rolling direction by the rolling guide members 17 such as windmills arranged at various locations in the game area 11, Either the general winning port 13 or the starting port 14 is won, or it enters the outlet 16 and becomes an out ball.

  Winning at each winning opening (large winning opening, general winning opening 13 and start opening 14) is detected by a sensor provided for each winning apparatus. Specifically, the general prize opening 13 is awarded to the general prize opening sensors 51.1 to 51. With N (see FIG. 3), the winning at the start opening 14 is detected by the special symbol starting sensor 52 (see FIG. 3), and the winning at the big winning opening is detected by the count sensor 53, respectively. Based on these winning detections, the number of winning balls corresponding to the type of the winning device won is paid out from the discharging device (discharge unit) 600 (see FIGS. 2 and 3) to the supply tray 31.

  In addition, a V winning opening is provided inside the big winning opening, and when a game ball that has won the big winning opening further wins the V winning opening, it is detected by the continuation sensor 55 (see FIG. 3). It has become.

  The starting opening 14 is provided with an ordinary variable winning device (electric gate) 15. The normal variation winning device 15 operates by energizing the normal variation winning device solenoid 15A (see FIG. 3), and changes the entrance area of the start port 14.

  A pair of normal symbol start gates 18A and 18B through which game balls can pass are provided on the left and right sides of the start port 14. The passing of the game ball to the normal symbol start gates 18A and 18B is detected by a normal symbol start sensor 53 (see FIG. 3) provided respectively.

  A normal symbol display 22 and a normal symbol storage display 23 are arranged on the left and right of the special variable winning device 12, respectively. The normal symbol display 22 is a display for displaying a normal symbol (for example, a numeric display by 7-segment display). Moreover, the normal symbol memory | storage display 23 consists of four LED, and is a display which displays the accumulation number of the normal symbol starting memory mentioned later.

  A front display panel (open / close panel) 30 is provided below the front frame 3. The front display panel 30 is provided with a game ball supply tray (upper plate) 31. Game balls (prize balls or rental balls) from the discharge device (discharge unit) 600 are paid out to the supply tray 31 through the payout port 31A.

  On the front surface of the supply tray 31, a ball lending button 32 that is operated when purchasing game balls and a card return button 33 that is operated when instructing to return a prepaid card are provided.

  A front operation panel (fixed panel) 35 is provided below the front display panel. The front operation panel 35 is provided with a receiving tray (lower plate) 36, a not-shown operation unit (operation knob) 501 of a ball striking device.

  The tray 36 receives surplus game balls from the supply tray 31 through the ball receiving port 36A by operation of the operation lever. Further, the game ball in the tray 36 can be discharged downward by operating the operation lever 36B. When the tray 36 is filled with game balls (overflow), it is detected by an overflow sensor (not shown).

  The bullet ball game machine 1 is provided with various light emitting device groups 70 (see FIG. 3) such as side lamps 71A and 71B and a plurality of decorative LEDs (not shown) arranged on the game area. In addition, the ball game machine 1 is provided with a sound output device 80 (see FIG. 3) so as to output sound effects corresponding to the gaming state.

  A card unit (ball lending machine) 90 is attached to the side of the ball game machine 1. A card insertion slot 91 is provided on the front surface of the card unit 90, and a game ball discharged from the discharge device 600 by inserting a prepaid card into the card insertion slot 91 and operating the ball lending button 32 described above. Is dispensed to the supply tray 31 from the dispensing port 31A.

  FIG. 2 shows the gaming machine 1 and the back side of the card unit 90.

  On the back side of the game board 6, a winning ball collective cover (not shown) for guiding a winning ball that has won a prize winning port, a general winning port 13, and a starting port 14, a display control device 150, a decoration control device 200, and sound control The device 250, the game board external output terminal 41, and the like are attached.

  A back mechanism panel 60 is attached to the back side of the storage frame of the front frame 3. An opening window 65 for inspecting each device (display control device 150, decoration control device 200, sound control device 250, etc.) on the back side of the game board 6 is provided at the center of the back mechanism board 60. Yes.

  A ball storage tank 61 for storing game balls and a guide rod 62 for guiding the balls of the ball storage tank 61 to the basket unit portion (half-end sensor unit) 63 are attached to the upper part of the back mechanism board 60. The guide rod 62 and the rod unit 63 are formed in two channels. The heel unit 63 is provided with a half-end ball detection switch 64 that detects a shortage of game balls to be supplied to the discharge unit 600.

  A terminal board 42 is provided on the upper right side of the back mechanism panel 60. An external signal line to a management device (a host computer that manages a plurality of gaming machines 1 in a game store) is connected to the frame external output terminal 42A provided on the terminal board 42. The terminal board 42 is a relay board to which a power supply line from the outside (amusement facility island facility) is connected.

  On the right side of the opening window 65 of the back mechanism board 60, a discharge device (discharge unit) 600 that pays out the balls of the basket unit 63 to the upper plate 21 and the lower plate 23 on the front side of the gaming machine is attached.

  A power supply device 300 is attached to the upper left side of the back mechanism panel 60. Also, at the lower part of the back mechanism board 60, a game control device 100 for overall control of the game, a discharge control device 400 for controlling the discharge device 600, a launch control device 550 for controlling the hit ball launch device 500, and a card unit relay A substrate 43 or the like is attached.

  FIG. 3 is a configuration diagram showing a control system of the gaming machine 1.

  The game control device 100 is a main control device that comprehensively controls games, and includes a CPU 101, a ROM 102, a RAM 103, an input / output interface 104, and the like.

  The CPU 101 is an IC that controls the game control device 100 (game control).

  The ROM 102 stores invariant information for game control, and stores various programs and constants such as probability of jackpot in game control.

  The RAM 103 is used as a work area during game control by the CPU 101. The RAM 103 is supplied with power from a backup power source 302 (to be described later) even in the event of a power failure, so that necessary data is backed up. The RAM 103 is composed of a backup area and a control area. The backup area is an area in which the data contents are not initialized in principle when returning from a power failure. In addition to the check data, the special symbol random number counter, special symbol random number memory, ordinary symbol random number counter, ordinary symbol random number counter, and ordinary symbol random number memory to be described later A random number counter, a jackpot initial value random number counter, and the like are stored in corresponding storage areas. On the other hand, the control area is an area other than the backup area and stores a timer value (for example, a special figure processing timer to be described later).

  Here, the effect random number counter is a counter used for determining the contents of the effect in the game, and is a kind of “counter used for control related to the game” in the claims. As will be described later, in the present embodiment, the display content in the display control device 20 is determined based on the effect random number counter value. This effect random number counter value is used for effect contents other than display (for example, various It can also be used to determine the light emitting operation of the light emitting device group 70 and the sound output from the sound output device 80. Details of updating the effect random number counter and determining the contents of the effect based on the effect random number counter will be described later.

  The CPU 101 receives detection signals from various detection devices (general winning opening sensors 51.1 to 51.N, special symbol start sensor 52, normal symbol start sensor 53, count sensor 54, continuation sensor 55) via the interface 104. Is entered. Based on these detection signals, the game control device 100 performs overall control (game control) of the game by a program (game program) stored in the ROM 102.

  In this game control, the game control device 100 has various subordinate control devices, that is, a display control device 150 (a control device that controls display on the display device 20), a decoration control device 200 (lamps, LEDs, etc.) via an interface 104. Control device for controlling the various light emitting device groups 70), sound control device 250 (control device for controlling sound output from the sound output device 80), and discharge control device 400 (control device for controlling the discharge device 600), respectively. The display control command, the decoration control command, the sound control command, and the prize ball control command are transmitted to control these subordinate control devices in a centralized manner.

  In addition, the game control device 100 controls the large winning opening solenoid 12A, which is a drive solenoid of the special variable winning device 12, and the normal variable winning device solenoid 15A, which is a driving solenoid of the normal variable winning device 15, via the interface 104. By transmitting (solenoid control command) and controlling energization to these solenoids, the opening / closing operation of the special variation winning device 12 and the normal variation winning device 15 is controlled. Further, a control signal is transmitted to the normal symbol display 22 via the interface 104 to control variable display on the normal symbol display 22. Furthermore, the external output data is transmitted from the interface 104 to the management device (host computer that manages the plurality of gaming machines 1 in the store) 900 via the game board external output terminal 41.

  In the game control, a lottery for a special jackpot and a special jackpot is performed.

  First, the jackpot lottery with respect to the special symbol and the control associated therewith will be described.

  When the special symbol start sensor 52 detects a winning at the start port 14, the timing of this winning (specifically, the value at the time of detecting the winning of the special symbol random number counter provided in the game control device 100) is the special symbol winning. As memory, the first to fourth special symbol random number storage areas provided in the RAM 103 of the game control device 100 are sequentially stored up to a maximum of four times. The number of special symbol winning memories stored in the special symbol random number storage area is indicated by the number of lit LEDs in the special symbol start memory display 21.

  For each special symbol winning memory stored in this way, a jackpot lottery regarding the special symbol is made. Specifically, when the special symbol random number counter value stored as the special symbol winning memory is a big win, that is, when the timing of winning a prize to the start port 14 is a predetermined jackpot timing, Otherwise, it is determined as “out of”.

  The probability (frequency) of jackpot occurrence is determined as a ratio of time for jackpot occurrence (for example, 2 milliseconds) in a reference time (for example, 600 milliseconds). In other words, it is determined as a ratio of the time (for example, 2 milliseconds) at which the special symbol random number counter takes a big hit value (for example, “7”) in one round of the special symbol random number counter (for example, 2 × 300 milliseconds).

  The probability of the jackpot is maintained at a predetermined probability (for example, 1/300) in a normal game, but the occurrence of a predetermined gaming state, for example, the occurrence of a jackpot due to a specific special symbol (for example, “777”). Changed with That is, the game shifts to a probability fluctuation state in which the jackpot occurrence probability is maintained at a higher probability (for example, 1/50) than the normal probability. This probability variation state is continued until the subsequent jackpot is a jackpot that does not involve a probability variation, that is, a jackpot with a special symbol that is not a specific special symbol (for example, “777”).

  When the presence of the special symbol winning memory is confirmed, the special symbol of the display device 20 starts to fluctuate (for example, scroll rotation) together with such a jackpot lottery (start of the fluctuating display screen). When a jackpot occurs, these special symbols stop at the jackpot (for example, three symbols stop at the same symbol), and the special variable winning device 12 that is normally closed is opened. It becomes a state, and it becomes a state where the game ball can win a big winning opening, that is, a big hit state. This jackpot state is a kind of special game state that is more advantageous to the player than the normal state.

  The special variable winning device 12 in the big hit state is opened every round. Each round is continued until the number of winning detections (count number) to the big winning opening by the count sensor 55 reaches a predetermined count (for example, 10 counts) or until a predetermined time elapses without reaching the predetermined count. Then, as long as there is a winning in the V winning opening in each of the jackpot rounds, the jackpot round is repeated up to a predetermined upper limit number of times (for example, 16 rounds). In the jackpot state, a jackpot screen is displayed on the display device 20, and the count number and the round number are displayed in the jackpot screen.

  On the other hand, when no big win has occurred due to the lottery, the display of the display device 20 stops in a mode indicating that it is not a big win after the variable display screen (for example, stops without matching three symbols) Normal (non-hit) games will continue.

  In such a symbol stop at the time of jackpot lottery, so-called reach display may be performed. Here, the reach display refers to a special display that is displayed before all of the plurality of symbols of the display device 20 stops changing. As a specific example, for example, a display in which a plurality of symbols are aligned on a line with the same symbol (a symbol that is aligned on a line may be stopped or fluctuated) Good), and a display in the previous stage, and there is also a display in which a character that does not normally appear appears.

  Next, the jackpot lottery regarding the normal symbol in the game control device 100 and the control associated therewith will be described.

  When the game ball passes through the normal symbol start gates 18A and 18B, this passage is detected by a normal symbol start sensor 53 provided for each of the gates 18A and 18B. The timing of this game ball passage (specifically, the value at the time of passage detection of the normal symbol random number counter provided in the game control device 100) is a predetermined memory in the game control device 100 as the normal symbol winning memory. In the area (ordinary symbol random number storage area), the maximum four consecutive times are stored. The stored number of the normal symbol winning memory is displayed on the normal symbol memory display 23 by the number of lit LEDs.

  For each ordinary symbol winning memory stored in this manner, a winning lottery regarding the ordinary symbols is performed. Specifically, when the normal symbol random number counter value stored as the normal symbol winning memory is a winning value, that is, when the game ball passing timing is made at a predetermined winning timing, it is determined as “winning”, and Otherwise, it is determined as “out of”.

  The normal symbol displayed on the normal symbol display device 30 starts to change in response to detection by the normal symbol start sensor 53. Then, when the winning for the normal symbol occurs, the normal symbol stops at the winning symbol (winning number), and the normal variable winning device 15 provided in front of the start port 14 is set for a predetermined time (for example, 0. 0). 5 seconds), the possibility of winning the game ball at the start port 14 is increased.

  The probability of occurrence of hits for normal symbols is changed between the normal state and the probability variation state. For example, a probability of 1/10 in the normal state shifts to a high probability of 9/10 in the probability fluctuation state. Further, the opening time of the normal variation winning device 15 may be extended from 0.5 seconds in the normal state to 5 seconds in the probability variation state, for example. Thereby, in the game in the probability variation state, winning at the start port 14 is greatly facilitated, and the next jackpot can be obtained without substantially reducing the possession balls.

The power supply device 300 is a device that supplies power to various devices of the gaming machine 1. For example, 5V power is supplied to various control devices (game control device 100 and various subordinate control devices).
In addition, the power supply device 300 includes a power failure detection circuit 301 and a backup power source 302. When a power failure occurs, a signal notifying the occurrence of a power failure is input from the power failure detection circuit 301 to the CPU 101 of the game control device 100, and backup power is supplied from the backup power source 300 to the RAM 103 of the game control device 100.

  4 and 5 are flowcharts showing the processing procedure of the game control main process in the game control apparatus 100. FIG. In the present embodiment, the portion shown in FIG. 5 (step S5.05 to step S5.14) in the game control main process corresponds to a game control main routine.

  When the power is turned on, the inside of the CPU 101 is initialized in step S1, and all output ports of the interface 104 are set to an OFF state in step S2.

  In step S3, it is determined whether or not the check data in the inspection area in the RAM 103 is normal, and the process proceeds to a power failure recovery process in step S4.01 and subsequent steps. On the other hand, if the check data is not normal, the process proceeds to step S5.01 and subsequent steps, and the entire area of the RAM 103 including the backup area is initialized (complete initialization process in step S5.02).

  In step S4.01, the stack pointer backed up in the backup area of the RAM 103 is returned to the CPU 101. In a succeeding step S4.02, initialization processing for power failure recovery is executed. In this initialization process, a process for restoring the registers saved in the backup area of the RAM 103 when a power failure occurs to a state before the power failure occurs, a process for clearing the RAM 103 control area, and the like are executed.

  In step S4.03, data is output to the output port of the interface 104 based on the backup data, and the output port is returned to the state immediately before the occurrence of the power failure. In the data output at the time of power failure recovery, control command transmission to various subordinate control devices is executed in a predetermined order.

  In step S4.04, various subordinate control devices are notified that the power failure recovery processing has been completed. Since the discharge control device 400 can know the recovery from the power failure by changing the prize ball number data of the output port from the off data to the data other than the off data by the data output in step S4.03, this step S4 There is no need to repeat notification at .04.

  In step S4.05, an interrupt timer is started. Normal interrupt processing (see FIG. 7), which will be described later, is executed every time the interrupt timer expires.

  In step S4.06, it is determined with reference to the flag set in the power failure interrupt processing whether or not the interrupt was disabled before the power failure occurred. If the interrupt was not disabled, the process proceeds to step S4.07. If so, the process proceeds to step S4.09.

  In step S4.07, the value of the program counter saved in the backup area of the RAM 103 is restored to the original register, interrupt is permitted in the subsequent step S4.08, and the power failure recovery processing routine is terminated. On the other hand, in step S4.09, the value of the program counter saved in the backup area of the RAM 103 is restored to the original register, interrupt is prohibited in the subsequent step S4.10, and the power failure recovery processing routine is terminated. Upon completion of this power failure recovery processing routine, the CPU 101 returns to the state at the time of power failure detection, and resumes control from the position on the program at the time of power failure detection.

  On the other hand, in step S5.01, acceptance of normal interrupts is prohibited. In the subsequent complete initialization process in step S5.02, the stack pointer is set, the entire area of the RAM 103 is initialized, the check data is written into the inspection area of the RAM 103, the initial values of various registers are set, and the like. Subsequently, an interrupt timer is started in step S5.03, and an interrupt is permitted in step S5.04.

  In step S5.05, similarly to step S3, it is determined whether or not the check data in the inspection area in the RAM is normal. If normal, the process proceeds to step S5.06. If not normal, step S5.01 is determined. Return to.

  In this way, the check data is checked for each round of the main routine (the loop of steps S5.05 to S5.14), and if an abnormality is found, the initialization process is repeated. As long as no abnormality is found, the main routine is repeated.

  In step S5.06, an error monitoring process is executed to check whether various abnormalities have occurred.

  In step S5.07, a special symbol game process is executed. This special symbol game process is a core process of game control, and a jackpot determination based on a special symbol random number counter value stored in the special symbol random number storage area, determination of command contents to various subordinate control devices, and the like are made. The When determining the contents of the commands to the various subordinate control devices (deciding the display control commands to the display control device 150), processing for obtaining the effect random number counter value is executed. Details of the special symbol game process will be described later with reference to FIG.

  In step S5.08, a normal symbol game process is executed. In the normal symbol game process, as in the special symbol game process, the winning determination regarding the normal symbol is made based on the normal symbol random number counter value stored in the normal symbol random number storage area.

  In step S5.09, normal symbol variable control processing is executed, and processing such as flag setting for controlling the display of the normal symbol display device 22 is performed.

  In step S5.10, solenoid editing processing is executed, and solenoid control commands for the big prize opening solenoid 12A and the normal variation prize winning device solenoid 15A are edited. In step S5.11, external information editing processing is executed, and external output data to be transmitted to the management apparatus (hall computer) 900 is edited.

  In step S5.12, command editing processing is executed, and control commands to various subordinate control devices (display control commands to display control device 150, decoration control commands to decoration control device 200, sound control commands to sound control device). , Prize ball control command to the discharge control device 400 is edited.

  In step S5.13, the big hit initial value random number is updated by +1. This jackpot initial value random number serves as the cyclic initial value of the special symbol random number counter (see FIG. 8).

  In step S5.14, the effect random number counter is updated by one. As will be described later, the effect random number counter update process is also executed in the game random number update process in the normal interrupt process (FIG. 7) (see step S48 in FIG. 8). In this way, the effect random number counter is updated in both the main routine (the loop of steps S5.05 to S5.14 of the game control main process) and the interrupt routine (normal interrupt process). The value of the production random number counter updated per loop becomes unspecified (varies for each main routine). That is, the number of updates of the production random number counter per loop of the main routine is a fixed number in the main routine alone, but becomes unspecified by adding the number updated in the interrupt routine. As a result, regularity (bias) can be eliminated from the effect random number counter value acquired in the process of step S5.07, and the selection of the effect content in the display control device 150 based on this acquired value is also unbiased. (There is no difference between what is easily selected and what is difficult to select).

  When the effect random number counter update process in step S5.14 is completed, the process returns to step S5.05, and the processes in steps S5.05 to S5.14 are repeated.

  When a power failure occurs or when the gaming machine 1 is turned off, a signal notifying the power failure is input from the power failure detection circuit 301 to the CPU 101 of the game control device 100, and the game control device 100 executes at that time. The interrupted process is interrupted, and the power failure interrupt process is executed. In this power failure interrupt process, the value of the address (program counter) at the time of interruption is saved in the RAM 103, and when the power is turned on again, the address at the time of interruption (address indicated by the program counter) The processing is resumed from (see step S4.01 to step S4.10 in FIG. 4).

  FIG. 6 is a flowchart showing the procedure of the special symbol game process (the process of step S5.07 in FIG. 5).

  In step S101, it is determined whether or not the special figure processing timer is up. If the time is up, the process proceeds to step S102. If the time is not up, the routine is ended as it is. Here, the special figure processing timer is a timer in which a time-up time is set corresponding to the duration of various game states related to special symbols, and the processing corresponding to each special figure processing number described later is a special figure processing. It will be executed every time the timer expires. The special figure processing timer is updated in the timer update process (step S22 in FIG. 7) during the normal interrupt process.

  After step S102, the process branches according to the special figure process number, and the process corresponding to the special figure process number is executed. Here, the special figure process number is a numerical value that is an index indicating in which progress the game related to the special symbol is in, and is a numerical value of any one of “0” to “6” associated with each state. It is to take. Specifically, the special symbol process number = 0 indicates a state waiting for the start of special symbol change, the special symbol process number = 1 indicates that the special symbol is changing, and the special symbol process number = 2 indicates a special symbol. The state where the fluctuation is stopped and waiting for the jackpot determination, the special figure process number = 3 is informing the start of the big hit operation, and the special figure process number = 4 is opened by the variable winning device 12. The special figure process number = 5 is a state in which the variable winning device 12 is temporarily closed to prepare for the opening of the next round, and the special figure process number = 6 is a state in which the end of the jackpot operation is notified. Respectively.

  In step S102, it is determined whether or not the special figure process number is 0. If it is 0, the process proceeds to step S103, and if it is not 0, the process proceeds to step S108.

  In step S103, it is determined whether or not the number of special symbol starting memories is greater than 0 (whether or not there is a special symbol starting memory). If greater than 0, the process proceeds to step S104, and if not greater than 0, The routine ends as it is.

  In the jackpot determination process in step S104, the special symbol starting memory number is decremented by 1, and it is determined whether or not the oldest special symbol starting memory matches a predetermined jackpot value (for example, “7”). If it matches, the jackpot determination flag is set. If they do not match, the jackpot determination flag is cleared.

  In the stop symbol determination process of step S105, combinations of stop symbols of three special symbols of left, middle, and right are determined based on the jackpot determination flag set in step S104. Specifically, if the jackpot determination flag is set, select a combination in which the three special symbols are the same symbol (for example, a combination of double eyes such as “777”). A combination in which the special symbol is not the same symbol (for example, a combination that is not a doublet such as “248”) is selected.

  This determination of the stop symbol is one of the determinations of the contents of the effect related to the display. In this determination, the effect random number counter value at that time is acquired, and based on the acquired value of the effect random number counter, it is concretely determined. A typical symbol is selected. For example, each value of the effect random number counter is associated with a combination of a stop symbol of a special symbol when the game is not a big hit, and the game control device 100 performs an effect random number based on this correspondence. The stop symbol corresponding to the acquired value of the counter is selected.

In step S106, the special figure process number is set to 1, and the special figure process timer is set to a time value (for example, 10 seconds) required for the special symbol change.
In the command setting process of step S107, a display control command to the display control device 150, a decoration control command to the decoration control device 200, and a sound control device so that an effect corresponding to the game state of the special figure process number = 1 is performed. A sound control command to 250 is prepared. In this case, the display control command to the display control device 150 includes a variation mode of the special symbol (for example, variation in the variation speed of each symbol, the type of reach display, etc.). This is one of the contents, and is selected based on the acquired value of the effect random number counter as in the case of the stop symbol. For example, a variation mode is associated with the effect random number counter value, and a variation mode based on this correspondence is selected.

  In step S108, all the corresponding transmission preparation flags of the display control device 150, the decoration control device 200, and the sound control device 250 are set, and the routine ends. Here, the transmission preparation flag is a flag indicating that transmission is not performed even though a control command is prepared, and a corresponding transmission preparation flag is individually set for each subordinate control device. Is provided.

  On the other hand, in step S109, it is determined whether or not the special figure process number is 1. If 1, the process proceeds to step S110, and if not, the process proceeds to step S112. In step S110, 2 is set in the special figure processing number, and a time value (for example, 0.5 seconds) for showing the player to stop the special symbol is set in the special figure processing timer. Further, a display control command to the display control device 150, a decoration control command to the decoration control device 200, and a sound control command to the sound control device 250 so that an effect corresponding to the game state of the special figure process number = 2 is performed. And proceed to step S108. Also in the determination of the display control command to the display control device 150, the acquired value of the effect random number counter is used, and the contents of the effect taken by the special symbol at the time of stop (for example, whether or not a predetermined character appears at the stop position, etc.) ) Will be decided.

  In step S112, it is determined whether or not the special figure processing number is 2. If it is 2, the process proceeds to step S113, and if not, the process proceeds to step S116.

  In step S113, based on the jackpot determination flag set in step S104, it is determined whether or not a jackpot has occurred. If the big hit determination flag is cleared, the process proceeds to step S115.

  In step S114, 3 is set as the special figure processing number, and a time value (for example, 10 seconds) required for notifying the occurrence of the jackpot is set in the special figure processing timer. Further, a display control command to the display control device 150, a decoration control command to the decoration control device 200, and a sound control command to the sound control device 250 so that an effect corresponding to the game state of the special figure process number = 3 is performed. And proceed to step S108.

  In step S115, the special figure process number is set to 0, and the special figure process timer is set to 0 seconds to keep the time up. Further, a display control command to the display control device 150, a decoration control command to the decoration control device 200, and a sound control command to the sound control device 250 so that an effect corresponding to the game state of the special figure process number = 0 is performed. And proceed to step S108.

  In step S116, it is determined whether or not the special figure process number is 6. If 6, the process proceeds to step S115, and if not 6, the process proceeds to step S117.

  In step S117, it is determined whether or not the special figure processing number is 3 or 5. If 3 or 5, the process proceeds to step S118, and if not 3 or 5, the process proceeds to step S119.

  In step S118, 4 is set as the special figure processing number, and the opening time (for example, 30 seconds) of the variable winning device is set in the special figure processing timer. Also, the number of rounds for the big hit is updated by +1. Further, a display control command to the display control device 150, a decoration control command to the decoration control device 200, and a sound control command to the sound control device 250 so that an effect corresponding to the game state of the special figure process number = 4 is performed. And proceed to step S108.

  In step S119, processing differs depending on whether the jackpot state should be terminated or continued. When the jackpot state is to be terminated (when there is no winning in the V winning opening while the variable winning device 12 is opened, or when the number of rounds of the jackpot reaches a predetermined maximum value (for example, 16)) The special figure process number is set to 6, and the special figure process timer is set to a time value (for example, 20 seconds) required for notification of the jackpot end. In addition, a display control command to the display control device 150, a decoration control command to the decoration control device 200, and a sound control command to the sound control device 250 so that an effect corresponding to the game state of the special figure process number = 6 is performed. And proceed to step S108. On the other hand, when the jackpot state should be continued (other than when the jackpot state is to be terminated), the special figure processing number is set to 5, and the special chart processing timer is notified that the jackpot will continue. A required time value (for example, 2 seconds) is set. Further, a display control command to the display control device 150, a decoration control command to the decoration control device 200, and a sound control command to the sound control device 250 so that an effect corresponding to the game state of the special figure process number = 5 is performed. And proceed to step S108.

  If there are a plurality of effects that can be selected for the display that is a big hit, the preparation of the display control command in steps S114, S115, S118, and S119 is based on the acquired value of the random number counter for effects. The type of production to be performed is selected.

  FIG. 7 is a flowchart showing the normal interrupt processing procedure in the game control apparatus 100. This normal interrupt process is executed at predetermined timer interrupt times (for example, every 2 ms) as an interrupt process for the game control main process (FIGS. 4 and 5).

  In step S11, various interrupt processes other than the forced interrupt (power failure interrupt) are prohibited. In step S 12, the register value of the CPU 101 is saved (saved) in the stack area of the RAM 103.

  In step S13, the watchdog timer is reset. Here, the watchdog timer is a timer for monitoring the runaway of the CPU 101, and issues an alarm signal if not reset within a predetermined time. In other words, when the CPU 101 runs away and the normal interrupt process is not executed, the reset in step S13 is not performed, so that an alarm signal is issued and an abnormality can be detected.

  In step S14, a sensor reading process is executed, and detection signals from various detection devices (general winning opening sensors 51.1 to 51.N, special symbol start sensor 52, normal symbol start sensor 53, count sensor 54, continuation sensor 55). Are read for each detection device.

  In step S15, an output process is executed, and the solenoid control command edited in step S5.10 of the game control main process (FIG. 5) and the external output data edited in step S5.11 are set in the output port. The corresponding device is driven or stopped according to the data set in the output port.

  In step S16, if the display control command transmission process is executed and the transmission preparation flag corresponding to the display control device 150 is set, the display control command prepared in step S5.12 of the game control main process (FIG. 5). Is set as an output port, and then the transmission preparation flag corresponding to the display control device 150 is cleared. The display control command set for the output port is transmitted to the display control device 150. Therefore, the timing at which the display control command can be transmitted is generated for each normal interrupt process.

  Following step S16, any one of the discharge control command transmission process of step S17, the sound control command transmission process of step S18, and the decoration control command transmission process of step S19 is selected and executed in a time division manner. That is, with the three normal interrupt processes as one cycle, the discharge control command transmission process in step S17 is performed in the first normal interrupt process, and the sound control command transmission process in step S18 is performed in the second normal interrupt process. In the normal interruption process, the decoration control command transmission process in step S19 is executed, and this cycle is repeated.

  In these discharge control command transmission processing, sound control command transmission processing, and decoration control command transmission processing, only when transmission preparation flags corresponding to the discharge control device 400, the sound control device 250, and the decoration control device 200 are set, respectively. The discharge control command, sound control command, and decoration control command are set in the output port, respectively, and then the corresponding transmission preparation flag is cleared. Each control command set in the output port is transmitted to the discharge control device 400, the sound control device 250, and the decoration control device 200, respectively. The discharge control command is a sensor input determination process in step S21 described later, and the sound control command and the decoration control command are prepared in step S5.12 of the game control main process.

  In step S20, a game random number update process is executed, and the special symbol random number counter, the normal symbol random number counter, and the effect random number counter are updated (refer to the flowchart of FIG. 8 for detailed processing procedure).

  In step S21, a sensor input determination process is executed, the signal states of the various detection devices read in step S14 are determined, and the presence / absence of game ball detection is determined. This determination is performed separately for each detection device. And the detection device which should discharge prize balls corresponding to the detection, that is, the sensors (count sensor 53, general prize opening sensor 51. 1 to 51.N, if there is detection by the special symbol start sensor 52), a discharge control command for instructing discharge of the number of prize balls determined according to the type of the detection device (winning hole) is prepared and discharged A transmission preparation flag corresponding to the control device 400 is set. When the special symbol starting sensor 52 detects the number, the special symbol starting memory number is updated by +1 and the special symbol random number counter value at that time is stored. When the normal symbol start sensor 53 detects the normal symbol start memory 53, the normal symbol start memory number is updated by +1 and the normal symbol random number counter value at that time is stored.

  In step S22, a timer update process is executed to update the timer used in each process of the game control main process (FIGS. 4 and 5). The special figure processing timer is subtracted and updated in this timer update process, but if the time has already expired (when the special figure processing timer = 0 seconds), the timer value is held at 0 seconds. It will be.

  In step S23, the value of the register saved in the stack area is returned to the original register. In step S24, the interrupt prohibited in step S11 is permitted, and the routine is terminated.

  FIG. 8 is a flowchart showing the processing procedure of the game random number update processing (step S20 in FIG. 7).

  In step S41, the special symbol random number counter is updated by +1. In the subsequent step S42, it is determined whether or not the special symbol random number counter has reached an upper limit value (for example, 300) or more as a result of the update. 0) is set, the process proceeds to step S44, and if it is not equal to or greater than the upper limit value, the process proceeds to step S44. In this way, the special symbol random number counter is cyclically updated between the lower limit value and the upper limit value −1 (for example, 0 to 299).

  In step S44, it is determined whether or not the value of the special symbol random number counter is the circulation initial value. If it is the circulation initial value, the process proceeds to step S45, and if not, the process proceeds to step S47.

  In step S45, the jackpot initial value random number (see steps S5 and S13 in FIG. 5) is set as the circulation initial value. In the following step S46, the circulation initial value set in step S45 is set in the special symbol random number counter, and the process proceeds to step S47. In this way, the special symbol random number counter value starts from the round initial value and is counted until it returns to the round initial value. A new count is started from the newly set round initial value based on this.

  In step S47, the normal symbol random number counter update process is executed. In this updating process, the normal symbol random number counter is updated in increments of +1 in a predetermined range. In step S48, the effect random number counter is updated, and the routine ends.

  As described above, according to the present embodiment, the effect random number counter update process is performed in steps S5.S5.S5.15 in the main routine (steps S5.05 to S5.14 of the game control main process (FIG. 5)). 14 and step S48 of the normal interrupt process (FIG. 7) which is an interrupt routine. Therefore, the number of renditions of the production random number counter that is updated per loop of the main routine becomes unspecified (irregular) by the amount of renewal of the production random number counter in the interrupt routine. Thereby, the bias based on the regularity of the effect random number counter update can be eliminated from the acquired value of the effect random number counter acquired in the special symbol game process (step S5.07) of the main routine. Therefore, in the display on the display device 20, various types of effects are displayed without bias, and the entertainment of the game is enhanced by the display with variations. For this reason, since the same update process only needs to be performed in the main routine and the interrupt routine, the control is not complicated.

  In addition, since the special symbol game process which is “the process relating to the occurrence of the special game state” is arranged in the main routine (step S5.07), a complicated calculation is performed in the “process relating to the occurrence of the special game state”. It is possible to perform various kinds of effect patterns (display patterns on the display device 20) in relation to the special gaming state. In other words, if “processing related to the occurrence of a special gaming state” is placed in the interrupt routine, the processing time of the entire interrupt routine must be within the interrupt cycle. Although the processing time is limited, there is no such limitation when it is placed in the main routine, so it is possible to take a sufficient time for `` processing related to the occurrence of a special gaming state '' and perform complex calculations it can. And, from among a large number of production patterns that can be obtained by this complicated calculation, the production pattern is selected without bias based on the value of the production random number counter for which the number of updates per loop of the main routine is indefinite. As a result, an effect with a variation (display on the display device 20) is realized.

  FIG. 9 shows a part of a game control main process (main routine part of game control) in another embodiment of the present invention.

  This embodiment is the same as the above embodiment except that the main routine of game control is changed from FIG. 5 to FIG. . That is, in the game control main process of the present embodiment, the processes in steps S1 to S5.04 in FIG. 4 are executed in the same manner as in the above-described embodiment, and subsequently the process in the flowchart in FIG. Main routine) will be executed.

  The flowcharts of FIGS. 5 and 9 are common to steps S5.05 to S5.12, and the processing after step S5.13 in FIG. 5 is changed to the processing after step S6.01 in FIG. It differs only in that point. Therefore, in the following description, processing in step S6.01 and subsequent steps different from FIG. 4 will be described in the flowchart of FIG.

  In step S6.01, the value of the lower 4 bits of the refresh register is acquired and set to “number of updates”. Here, the refresh register is a well-known register used for refreshing the dynamic RAM (rewriting the memory contents at regular intervals), and stores a non-constant value that changes with each refresh.

  In step S6.02, the jackpot initial value random number is updated by +1. In the subsequent step S6.03, the effect random number counter is updated by +1.

  In step S6.04, it is determined whether or not the number of updates has become 0. If it is not 0, the process proceeds to step S6.05, the update count is decremented by -1, and then the process returns to step S6.02. If the number of updates becomes 0, the process returns to step S5.05. Thereby, the update process of the jackpot initial value random number and the effect random number counter is repeated over the number of times of update + 1.

  As described above, in this embodiment, the effect random number counter is updated in one loop of the main routine (the loop from the end of the special game process in step S5.07 to the step S5.07). The number is determined by the lower 4 bits (0 to 15) of the unspecified refresh counter, and varies between 1 and 16. Therefore, regularity can be eliminated from the updating of the production random number counter, and as in the first embodiment, the selection of display can be prevented from being biased, and the entertainment of the game is enhanced by the display with variations. be able to.

  In this embodiment, since the number of updates of the production random number counter per loop of the main routine varies even with the main routine alone, the production random number counter is not updated in the normal interrupt process (interrupt routine). Also good.

  10 to 11 show still another embodiment of the present invention.

  In the present embodiment, FIG. 5 (game control main routine) is changed to FIG. 10 and FIG. 7 (normal interrupt processing) is changed to FIG. It differs only in the point which was done.

  First, the game control main routine of FIG. 10 will be described. From step S5.05 to step S5.14, exactly the same processing as the step with the same number in FIG. 5 is executed.

  In step S7 following step S5.14, it is determined whether or not the time-division counter is 0. If it is not 0, the process returns to step S5.13 to update the big hit initial value random number and the effect random number counter. repeat. If the time division counter reaches 0, the process returns to step S5.05. Thus, in the present embodiment, the effect random number counter value updated in one loop of the main routine is changed by the time division counter.

  Next, the normal interrupt processing of FIG. 11 will be described. In steps S11 to S24, processing exactly the same as the step having the same number in FIG. 7 is executed.

  In step S25 following step S24, the time division counter is updated by +1. That is, the time division counter is updated every normal interrupt process that is an interrupt routine.

  As described above, according to the present embodiment, one time loop of the main routine (the special game process in step S5.07 is completed after the time division counter value updated for each interrupt routine is completed, and then step S5 is performed again. The number of updates of the production random number counter in the loop up to .07 becomes indefinite, so the number of production random number counter updates per loop of the main routine becomes irregular, and based on this production random number counter The selected display effect has no bias. Therefore, the entertainment of the game can be enhanced by the display with variations.

  In the present embodiment, the number of updates of the effect random number counter per loop of the main routine varies even with the main routine alone. Therefore, in the game random number update process of the normal interrupt process of FIG. The random number counter need not be updated.

  Further, in each of the above-described embodiments, the present invention is applied to the effect random number counter as a “counter used for control related to the game” in the claims, but it is used for “control related to the game” in the claims. What can be a “counter” is not limited to a random number counter for performance. For example, the present invention may be applied to a special symbol random number counter or a normal symbol random number counter as a “counter used for control relating to a game”.

  In each of the above embodiments, the game control device 100 is a “control device that performs control related to a game”, but the present invention is not limited to such a form, and may be provided in a gaming machine other than the game control device. It can be applied to any control device.

  The following are typical examples of aspects of the present invention other than those described in the claims.

  (1) In a gaming machine including a control device that performs control related to a game and a counter used for control related to a game in the control device, the control device includes a main routine that is repeated as a loop process, and the main routine The number of times the counter is updated per loop of the main routine, while performing processing related to the occurrence of a special gaming state advantageous to the player in the main routine. A game machine characterized in that it can change.

  (2) By updating the counter in the interrupt routine in addition to updating in the main routine, the number of updates of the counter updated per loop of the main routine can be changed. The gaming machine according to (1), which is characterized.

  (3) In a gaming machine provided with a control device that performs control related to a game and a counter used for control related to the game in this control device, it is updated per loop of a main routine of control related to the game in the control device. The number of updates of the counter to be updated is determined based on the value of a register in which a variable unspecified value is stored, thereby changing the number of updates of the counter updated per loop of the main routine. A gaming machine characterized by being able to do so.

  (4) The gaming machine according to (3), wherein the register in which the fluctuating unspecified value is stored is a refresh register.

  (5) In a gaming machine including a control device that performs control related to a game and a counter used for control related to a game in the control device, the control device includes a main routine that is repeated as a loop process, and the main routine An update number determination counter that is updated by the interrupt routine, and the update number of the counter that is updated per loop of the main routine is determined by the update number determination counter. The game machine is characterized in that the number of updates of the counter updated per loop of the main routine can be varied by determining based on the value of.

  (6) A display device that displays a screen according to the progress of the game is provided, and the control device selects an effect pattern of the screen display on the display device based on a counter value used for the control related to the game. The gaming machine according to any one of (1) to (5), characterized in that:

  In the invention of (1), the control in the control device (for example, the game control device 100 in the embodiment) is performed by using a counter (for example, an effect random number counter in the embodiment) used for control related to the game. However, in the main routine of this control device, a process related to the occurrence of a special game state (for example, a big win) (for example, a process such as a lottery of a special game state, etc., which corresponds to a special symbol game process in the embodiment) ) Is executed, the processing time of the interrupt routine can be made relatively short, the interrupt routine can be surely executed within the interrupt cycle, and updated for each loop of the main routine. Since the number of updates of the counter can vary (because it is irregular), a special game executed in the main routine is performed. Including the process relating to generation of the state control is determined based on the counter value is performed without bias based on the updated regularity occur. In other words, as a result of the lack of regularity in updating the counter used for the control related to the game, the control related to the game performed by the control device based on the counter value is limited to a specific pattern among various patterns that can be performed by the control device. Are not executed, but various patterns are executed without bias. Therefore, control with variations is realized and the interest of the game is enhanced.

  In the invention of (2), the counter used for control relating to the game is updated by the interrupt routine together with the main routine so that the number of updates of the counter can be changed, so that variations can be made without complicating the control. A certain control can be realized.

  In the inventions of (3) and (4), the number of counter updates is determined based on the value of a register (refresh register) in which a variable unspecified value is stored. Can be varied, and control with variations can be realized.

  In the invention of (5), since the number of updates of the counter in the main routine is changed based on the update number determination counter (for example, the time division counter in the embodiment) updated in the interrupt routine, the control is complicated. This makes it possible to implement control with variations.

  In the invention of (6), the selection of the display pattern of the screen display on the display device (for example, determination of the display control command in the game control device 100) is changed to the counter value in which the number of updates per loop of the main routine varies. Since it performs based on, production pattern is selected without bias. Therefore, display with variations is performed on the display device, so that the fun of the game is enhanced.

  Moreover, the embodiment disclosed this time is illustrative in all points and is not restrictive. The scope of the present invention is defined by the terms of the claims, and includes all modifications within the scope of the claims.

100 game control device 150 display control device

Claims (1)

In a gaming machine capable of variably displaying a plurality of symbols on a display device based on a winning at a starting opening and generating a special gaming state advantageous to a player when the result of the variation display is a predetermined symbol combination mode ,
CPU for controlling game control, ROM for storing game control program,
RAM that can store various data even when a power failure occurs when backup power is supplied,
An input / output interface for inputting and outputting signals between the CPU and various devices;
A power failure detection circuit that outputs a power failure detection signal to notify that a power failure has occurred when a power failure occurs,
The CPU
A main process including a loop process that is repeatedly executed and an interrupt process that is executed every time the interrupt timer expires can be executed for this main process.
A check data storage process for storing check data used to determine whether or not the storage content of the RAM is normal in a predetermined area of the RAM;
Based on a power failure detection signal from the power failure detection circuit, the RAM stores state information indicating one of an interrupt disabled state for prohibiting execution of the interrupt processing and an interrupt enabled state for permitting execution of the interrupt processing. Power outage generation processing to be stored in
An effect random number counter update process for updating an effect random number counter for determining an effect pattern of screen display in the display of the display device stored in the RAM is executed in both the main process and the interrupt process.
The main process is:
Prior to the loop processing, when power supply is restored, the check data is referred to determine whether or not the storage content of the RAM is normal, and based on the status information when it is determined normal State recovery processing for recovering to the interrupt disabled state or the interrupt enabled state,
A jackpot initial value random number counter update process executed in the loop process and updating a jackpot initial value random number counter stored in the RAM;
The interrupt process is
After setting the interrupt disabled state at the beginning of the interrupt processing,
An input process for taking in a detection signal of a game ball winning prize to the start opening;
A special symbol random number counter update process for circulating and updating a special symbol random number counter stored in the RAM within a predetermined range for determining whether or not to generate the special gaming state;
Including the step of setting the value of the jackpot initial value random number counter as a new round initial value in the special symbol random number counter, and executing the step when the special symbol random number counter makes a round and returns to the round initial value Lap initial value change processing
By executing the input process before the lap initial value change process, it is configured not to include a step that branches from the start of the interrupt routine to the execution of the input process. A gaming machine characterized in that a game ball winning detection signal is fetched at predetermined intervals every time an interrupt timer expires.

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