JP2006247419A - Game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a game machine which eliminates troubles in generating random numbers used in a game machine without blocking the processing to update counts of a counter for extracting a random number by processing based on an interruption. <P>SOLUTION: In a main routine, random number updating processing for deciding an initial value for updating counts of a counter to generate random numbers for deciding the initial value after setting an interruption prohibited state and processing for setting an interruption permitted state are carried out repeatedly. The counter updating processing of the counter in the random number updating processing for deciding the initial value is carried out in the interruption prohibited state. Thus, while numerical updating processing is carried out, a maskable interruption such as a timer interruption is not applied to carry out the numerical updating processing without being suspended by the interruption processing. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a gaming machine such as a pachinko gaming machine, a coin gaming machine, or a slot machine in which a game is performed in accordance with a player's operation, and in particular, a transition to a specific gaming state that is advantageous to the player when a predetermined condition is satisfied. It relates to a possible gaming machine.

  A specific game that is advantageous to the player when a variable display device having a variable display unit capable of changing the display state is provided as a gaming machine, and the display result of the variable display unit becomes a predetermined specific display mode Some are configured to transition to a state. The variable display device has a plurality of variable display units, and is usually configured to display the display results of the plurality of variable display units at different times.

  For example, a plurality of pieces of identification information such as symbols are variably displayed on the variable display section. That the display result of the variable display unit is a combination of specific display modes determined in advance is usually referred to as “big hit”. Note that the game value is the right that the state of the variable winning ball device provided in the gaming area of the gaming machine is advantageous for a player who is likely to win a ball, or the advantageous state for a player. It is to generate.

  In addition, among the combinations of “out of” display modes other than the “big hit” combination, the display results are already derived and displayed at a stage where some of the display results of the plurality of variable display portions have not yet been derived and displayed. A state in which the display mode of the variable display unit satisfies a display condition that is a combination of specific display modes is called “reach”. A player plays a game while enjoying how to generate a big hit.

  When a big hit is generated, for example, the big winning opening is opened a predetermined number of times, and the state shifts to a big hit gaming state as a specific gaming state in which a hit ball is likely to win. And in each open period, if there is a prize for a predetermined number (for example, 10) of the big prize opening, the big prize opening is closed. And the number of times the special winning opening is opened is fixed to a predetermined number (for example, 15 rounds). An opening time (for example, 29.5 seconds) is determined for each opening, and even if the number of winnings does not reach a predetermined number, the big winning opening is closed when the opening time elapses. If a predetermined condition (for example, winning in the V zone provided in the big prize opening) is not established at the time when the big prize opening is closed, the big hit gaming state is ended.

  In game control in such a gaming machine, a random number is generated when a predetermined condition (for example, a start prize that becomes a variable display start condition) is satisfied, and a “big hit” when the random number value matches a predetermined value. It becomes. Moreover, the microcomputer in the game control means for performing game control for reasons such as noise countermeasures is often configured to be restarted at a predetermined time interval (for example, 2 ms).

  In addition, it is desirable that a plurality of types of combinations of “out of” display modes occur randomly. In addition, it is desirable that combinations of “reach” display modes of a plurality of types also occur randomly. Furthermore, it is generally desirable that a plurality of combinations of “big hit” display modes are randomly generated. This is because a certain combination of one or a plurality of display modes occurs more frequently than other combinations of display modes, which may cause the player to feel suspicious. Therefore, in order to determine the combination of display modes, a random number is generated in the gaming machine, and the combination of display modes is determined according to the generated random value.

  Generally, a random number is generated by updating the count value of a predetermined counter and extracting the counter value at that time when the random value generation timing comes. In general, the change of the count value is realized by an addition process of +1. Updating the count value of the counter for extracting random numbers is often realized by a program (software) executed by a microcomputer. In that case, the count value update process is configured to be repeatedly executed in the remaining time after the necessary game control is performed (see, for example, Patent Document 1).

JP 2000-210434 A

  When the microcomputer is configured to detect that a predetermined time interval (for example, 2 ms) has elapsed using a timer interrupt of the microcomputer, the count value of the counter for generating a random number is being updated. A timer interrupt may occur. That is, a timer interrupt may occur during the execution of the update process. In such a case, game control processing is executed in response to the occurrence of a timer interrupt, and then control returns to the interrupt occurrence location in the program. However, when the memory area used in the game control process overlaps with the memory area used in the counter count value update process, if the contents of the memory area are changed in the game control process, a timer interrupt occurs. The contents of the memory area have changed between before and when the game control process based on the timer interrupt is completed. As a result, there is a possibility of causing inconvenience in the update process of the count value. In particular, in the game control process, if the counter count value update process is executed, the memory areas must be overlapped, and therefore the possibility of causing inconvenience in the count value update process is inevitable. It is.

  Therefore, the present invention provides a gaming machine in which the updating process of the count value of the counter for extracting the random number is not hindered by the processing based on the interrupt and does not cause inconvenience in the generation of the random number used in the gaming machine. The purpose is to provide.

  The gaming machine according to the present invention includes a variable display means capable of variably displaying a plurality of types of identification information that can be distinguished from each other, and starts variable display of a plurality of types of identification information based on the winning of a game medium in a specific winning portion. In addition, when the display result of the variable display of the plurality of types of identification information becomes the specific display result, the gaming machine can shift to a specific gaming state that is advantageous to the player, and power supply to the gaming machine is started. Initialization processing means for executing initialization processing including RAM clear processing at the time, a main routine for repeatedly executing predetermined processing after the initialization processing means has performed initial setting processing, and predetermined processing during execution of the main routine A game control means including an execution means for executing an interrupt routine which is activated by interrupting a main routine in response to a timer interrupt generated every time; and a piece transmitted by the game control means. And an electrical component control means for controlling electrical parts provided in the gaming machine based on the game machine, and the execution means is for determining a specific gaming state for determining whether or not to enter a specific gaming state in the interrupt routine. The numerical value update process for determining the specific gaming state for updating the numerical value within a predetermined range, and the initial value for updating the numerical value for determining the specific gaming state at a predetermined time is changed to the numerical value for the initial value stored in the predetermined address of the RAM A game control process including an initial value changing process to be performed and an initial value numerical value updating process for updating an initial value numerical value stored in a predetermined address, and also in the main routine, a predetermined address Execute numeric value update processing for initial values that updates the numeric values for initial values stored in, and by timer interruption before starting the numeric value update processing for initial values in the main routine Prohibits interruption, permits interruption by timer interruption after completion of the initial value numerical value updating process, and the initialization processing means transmits an initial setting command to the electrical component control means when executing the RAM clearing process. It is characterized by.

  According to the first aspect of the present invention, after the gaming machine performs the initial setting process, the main routine executes the predetermined process repeatedly, and the main routine according to the timer interrupt generated every predetermined time during the execution of the main routine. And a game control means including an execution means for executing an interrupt routine that is activated by interrupting, and the execution means is for determining a specific game state for determining whether or not to enter a specific game state in the interrupt routine. The numerical value update process for determining the specific gaming state for updating the numerical value within a predetermined range, and the initial value for updating the numerical value for determining the specific gaming state at a predetermined time is changed to the numerical value for the initial value stored in the predetermined address of the RAM A game control process including an initial value changing process for updating and an initial value numerical value updating process for updating an initial value numerical value stored at a predetermined address. As the predetermined process, the initial value numerical value update process for updating the initial value numerical value stored at the predetermined address is executed, and the timer interrupt is performed before starting the initial value numerical value update process in the main routine. And the timer interrupt is permitted after the initial value numerical value update process is completed, and the initialization processing means sends an initial setting command to the electrical component control means when executing the RAM clear processing. Since it is configured, the update process of the numerical value for the initial value is not hindered by the process based on the interrupt, so that the control for improving the randomness of the numerical value for determining the specific gaming state is surely executed. As a result, it is possible to effectively prevent fraud aimed at a specific gaming state.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
First, the overall configuration of a pachinko gaming machine that is an example of a gaming machine will be described. FIG. 1 is a front view of the pachinko gaming machine 1 as seen from the front. Here, a pachinko gaming machine is shown as an example of a gaming machine, but the present invention is not limited to a pachinko gaming machine and may be, for example, a coin gaming machine or a slot machine.

  As shown in FIG. 1, the pachinko gaming machine 1 has a glass door frame 2 formed in a frame shape. On the lower surface of the glass door frame 2 is a hitting ball supply tray 3. Under the hitting ball supply tray 3, there are provided an extra ball receiving tray 4 for storing game balls overflowing from the hitting ball supply tray 3 and a hitting operation handle (operation knob) 5 for firing the hitting ball. A game board 6 is detachably attached to the rear side of the glass door frame 2. A game area 7 is provided in front of the game board 6.

  Near the center of the game area 7, a variable display including a variable display unit (special symbol display device) 9 for variably displaying a plurality of types of symbols and a normal symbol display device (ordinary symbol display device) 10 using a 7-segment LED. A device 8 is provided. The variable display unit 9 has, for example, three symbol display areas of “left”, “middle”, and “right”. A passing gate 11 for guiding a hit ball is provided on the side of the variable display device 8. The hit ball that has passed through the passing gate 11 is guided to the start winning opening 14 through the ball outlet 13. In the passage between the passage gate 11 and the ball exit 13, there is a gate switch 12 that detects a hit ball that has passed through the passage gate 11. The winning ball that has entered the start winning opening 14 is guided to the back of the game board 6 and detected by the start opening switch 17. A variable winning ball device 15 that opens and closes is provided below the start winning opening 14. The variable winning ball device 15 is opened by a solenoid 16.

  An open / close plate 20 that is opened by a solenoid 21 in a specific gaming state (big hit state) is provided below the variable winning ball device 15. In this embodiment, the opening / closing plate 20 is a means for opening and closing the special winning opening. Of the winning balls guided from the opening / closing plate 20 to the back of the game board 6, the winning ball entering one (V zone) is detected by the V winning switch 22. A winning ball from the opening / closing plate 20 is detected by the count switch 23. At the bottom of the variable display device 8, a start winning memory display 18 having four display units for displaying the number of winning balls that have entered the start winning opening 14 is provided. In this example, with the upper limit being four, each time there is a start prize, the start prize storage display 18 increases the number of lit display units one by one. Then, each time the variable display of the variable display unit 9 is started, the lit display unit is reduced by one.

  The game board 6 is provided with a plurality of winning holes 19, 24, and winning of the game balls to the respective winning holes 19, 24 is performed by correspondingly provided winning hole switches 19a, 19b, 24a, 24b. Detected. Decorative lamps 25 blinking during the game are provided around the left and right sides of the game area 7, and an outlet 26 for absorbing a hit ball that has not won a prize is provided below. Two speakers 27 that emit sound effects are provided on the left and right upper portions outside the game area 7. On the outer periphery of the game area 7, a game effect LED 28a and game effect lamps 28b and 28c are provided.

  In this example, a prize ball lamp 51 that is lit when there is a remaining number of prize balls is provided in the vicinity of one speaker 27, and a sphere that is lit when a supply ball is cut near the other speaker 27. A cut lamp 52 is provided. Further, FIG. 1 also shows a card unit 50 that is installed adjacent to the pachinko gaming machine 1 and enables lending of a ball by inserting a prepaid card.

  The card unit 50 has a usable indicator lamp 151 indicating whether or not it is in a usable state, and when the remaining amount information recorded in the card has a fraction (a number less than 100 yen), the fraction is indicated as a hitting tray. 3, a fraction display switch 152 for displaying on a frequency display LED provided in the vicinity of 3, a connecting table direction indicator 153 indicating which side of the pachinko gaming machine 1 corresponds to the card unit 50, in the card unit 50 Check the card insertion indicator lamp 154 indicating that a card is inserted, the card insertion slot 155 into which a card as a recording medium is inserted, and the mechanism of the card reader / writer provided on the back of the card insertion slot 155. In some cases, a card unit lock 156 is provided for releasing the card unit 50.

  The hit ball fired from the hit ball launching device enters the game area 7 through the hit ball rail, and then descends the game area 7. When the hit ball is detected by the gate switch 12 through the passing gate 11, the display number of the normal symbol display 10 changes continuously. Further, when the hit ball enters the start winning opening 14 and is detected by the start opening switch 17, the symbol in the variable display portion 9 starts to rotate if the variation of the symbol can be started. If it is not in a state where the change of the symbol can be started, the start winning memory is increased by one.

  The rotation of the image in the variable display unit 9 stops when a certain time has elapsed. If the combination of images at the time of the stop is a combination of jackpot symbols, the game shifts to a jackpot gaming state. That is, the opening / closing plate 20 is opened until a predetermined time elapses or a predetermined number (for example, 10) of hit balls wins. When the hit ball enters the specific winning area while the opening / closing plate 20 is opened and is detected by the V winning switch 22, a continuation right is generated and the opening / closing plate 20 is opened again. The generation of the continuation right is allowed a predetermined number of times (for example, 15 rounds).

  When the combination of images in the variable display section 9 at the time of stop is a combination of jackpot symbols with probability fluctuations, the probability of the next jackpot increases. That is, it becomes a more advantageous state for the player in a high probability state. Further, when the stop symbol in the normal symbol display 10 is a predetermined symbol (winning symbol = small winning symbol), the variable winning ball device 15 is opened for a predetermined time. Further, in the high probability state, the probability that the stop symbol in the normal symbol display 10 becomes a winning symbol is increased, and the opening time and the number of times of opening of the variable winning ball device 15 are increased.

Next, each board | substrate arrange | positioned at the back surface of the pachinko game machine 1 is demonstrated.
As shown in FIG. 2, on the back surface of the pachinko gaming machine 1, a ball storage tank 38 is provided on the upper part of the mechanism plate in the frame 2 </ b> A, and the pachinko gaming machine 1 is installed above the gaming machine installation island. The game balls are supplied to the ball storage tank 38. The game balls in the ball storage tank 38 pass through the guide basket 39 and reach the ball payout device covered with the prize ball case 40A.

  On the back side of the gaming machine, there are installed a variable display control unit 29 for controlling the variable display unit 9, a game control board (main board) 31 on which a game control microcomputer and the like are mounted. Further, a payout control board 37 on which a payout control microcomputer for performing ball payout control and the like, and a hitting ball launching device for hitting a hitting ball into the game area 7 using the rotational force of the motor are installed. Furthermore, the sound control for controlling the sound generation from the decoration lamp 25, the game effect LED 28a, the game effect lamps 28b and 28c, the lamp control board 35 for sending signals to the prize ball lamp 51 and the ball break lamp 52, and the speaker 27. A launch control board 91 for controlling the board 70 and the ball hitting device is also provided.

  Furthermore, a power supply board 910 on which a power supply circuit for generating DC30V, DC21V, DC12V and DC5V is mounted is provided, and a terminal board 160 provided with terminals for outputting various information to the outside of the gaming machine is installed above. Has been. The terminal board 160 has at least a ball break terminal for introducing and outputting an output of the ball break detection switch, an award ball terminal for outputting the award ball number signal to the outside, and a ball lending number signal externally output. A ball lending terminal is provided. In addition, an information terminal board 34 having terminals for outputting various information from the main board 31 to the outside of the gaming machine is installed near the center. In FIG. 2, signals from the lamp control board 35 and the sound control board 70 are supplied to the game effect LED 28 a, game effect lamps 28 b and 28 c, the prize ball lamp 51, and the ball break lamp 52 provided on the frame side. Although the electrical relay board A77 for doing this is shown, other relay boards are also provided if necessary for signal relay.

  FIG. 3 is a rear view of the mechanism plate of the pachinko gaming machine 1 as seen from the back. The balls stored in the ball storage tank 38 pass through the guide rod 39 and pass through the ball break detectors (ball break switches) 187a and 187b, as shown in FIG. 3, through the ball supply rods 186a and 186b. Device 97 is reached. The ball break switches 187a and 187b are switches that detect the presence or absence of a game ball in the game ball passage, but a ball break detection switch 167 that detects a shortage of supply balls in the ball tank 38 is also provided. Hereinafter, the ball break switches 187a and 187b may be expressed as ball break switches 187.

  The game balls paid out from the ball payout device 97 are supplied to the hitting ball supply tray 3 provided on the front surface of the pachinko gaming machine 1 through the connection port 45. A surplus ball passage 46 communicating with the surplus ball receiving tray 4 provided on the front surface of the pachinko gaming machine 1 is formed on the side of the communication port 45.

  A lot of premium balls based on the winnings are paid out and the hitting ball supply tray 3 becomes full. Finally, when the game balls reach the contact port 45 and further game balls are paid out, the game balls are surplus via the surplus ball passage 46. It is guided to the ball receiving tray 4. When the game ball is further paid out, the sensing lever 47 presses the full tank switch 48 and the full tank switch 48 is turned on. In this state, the rotation of the stepping motor in the ball dispensing device 97 is stopped, the operation of the ball dispensing device 97 is stopped, and the driving of the hitting ball launching device is also stopped.

  FIG. 4 is a block diagram illustrating an example of a circuit configuration in the main board 31. 4 also shows a payout control board 37, a lamp control board 35, a sound control board 70, a launch control board 91, and a symbol control board 80. The main board 31 includes a basic circuit 53 for controlling the pachinko gaming machine 1 according to a program, a gate switch 12, a start port switch 17, a V winning switch 22, a count switch 23, winning port switches 19a, 19b, 24a, 24b, The switch circuit 58 for supplying signals from the tongue switch 48, the ball break switch 187 and the prize ball count switch 301A to the basic circuit 53, the solenoid 16 for opening / closing the variable prize ball device 15, the solenoid 21 for opening / closing the opening / closing plate 20, and the big prize A solenoid circuit 59 for driving the solenoid 21A for switching the route in the mouth according to a command from the basic circuit 53 is mounted.

  Although not shown in FIG. 4, the count switch short circuit signal is also transmitted to the basic circuit 53 via the switch circuit 58.

  Further, according to the data given from the basic circuit 53, the jackpot information indicating the occurrence of the jackpot, the effective starting information indicating the number of starting winning balls used for starting the image display of the variable display unit 9, and the fact that the probability variation has occurred. An information output circuit 64 that outputs an information output signal such as probability variation information to an external device such as a hall computer is mounted.

  The basic circuit 53 includes a ROM 54 that stores a game control program and the like, a RAM 55 that is an example of storage means used as a work memory, a CPU 56 that performs control operations according to the program, and an I / O port unit 57. In this embodiment, the ROM 54 and RAM 55 are built in the CPU 56. That is, the CPU 56 is a one-chip microcomputer. The one-chip microcomputer only needs to incorporate at least the RAM 55, and the ROM 54 and the I / O port unit 57 may be externally attached or built-in.

  Further, the main board 31 is provided with a system reset circuit 65 for resetting the basic circuit 53 when the power is turned on.

  A ball hitting device for hitting and launching a game ball is driven by a drive motor 94 controlled by a circuit on the launch control board 91. Then, the driving force of the drive motor 94 is adjusted according to the operation amount of the operation knob 5. That is, the circuit on the firing control board 91 is controlled so that the hit ball is fired at a speed corresponding to the operation amount of the operation knob 5.

  In this embodiment, the lamp control means mounted on the lamp control board 35 controls the display of the start memory indicator 18, the gate passing memory indicator 41 and the decoration lamp 25 provided on the game board. At the same time, display control of the game effect lamps / LEDs 28a, 28b, 28c, the prize ball lamp 51 and the ball break lamp 52 provided on the frame side is performed. The display control of the variable display unit 9 for variably displaying the special symbol and the normal symbol display 10 for variably displaying the normal symbol is performed by display control means mounted on the symbol control board 80.

Next, the operation of the gaming machine will be described.
FIG. 5 is a flowchart showing main processing executed by the CPU 56 on the main board 31. When the power to the gaming machine is turned on, in the main process, the CPU 56 first performs a necessary initial setting process.

  In the initial setting process, the CPU 56 first sets the interrupt prohibition (step S1). Next, the interrupt mode is set to interrupt mode 2 (step S2), and a stack pointer designation address is set to the stack pointer (step S3). Then, the built-in device register is initialized (step S4). Further, after initialization (step S5) of CTC (counter / timer) and PIO (parallel input / output port) which are built-in devices (built-in peripheral circuits), the RAM is set in an accessible state (step S6).

  The CPU 56 used in this embodiment has the following three types of maskable interrupt (INT) modes. When a maskable interrupt occurs, the CPU 56 automatically sets the interrupt disabled state and saves the contents of the program counter in the stack.

  Interrupt mode 0: The built-in device that has issued the interrupt request sends an RST instruction (1 byte) or a CALL instruction (3 bytes) onto the internal data bus of the CPU. Therefore, the CPU 56 executes the instruction at the address corresponding to the RST instruction or the address specified by the CALL instruction. At reset, the CPU 56 automatically enters interrupt mode 0. Therefore, when setting to interrupt mode 1 or interrupt mode 2, it is necessary to perform a process for setting to interrupt mode 1 or interrupt mode 2 in the initial setting process.

  Interrupt mode 1: In this mode, when an interrupt is accepted, the mode always jumps to address 0038 (h).

  Interrupt mode 2: A mode in which the address synthesized from the value (1 byte) of the specific register (I register) of the CPU 56 and the interrupt vector (1 byte: least significant bit 0) output by the built-in device indicates the interrupt address It is. That is, the interrupt address is an address indicated by 2 bytes in which the upper address is the value of the specific register and the lower address is the interrupt vector. Therefore, an interrupt process can be set at an arbitrary address (although it is skipped). Each built-in device has a function of transmitting an interrupt vector when making an interrupt request.

  Therefore, when the interrupt mode 2 is set, it becomes possible to easily process an interrupt request from each built-in device, and it is possible to install an interrupt process at an arbitrary position in the program. . Furthermore, unlike interrupt mode 1, it is also easy to prepare each interrupt process for each interrupt generation factor. As described above, in this embodiment, the CPU 56 is set to the interrupt mode 2 in step S2 of the initial setting process.

  If the clear switch provided in the gaming machine is on, the process proceeds to step S11 (step S7). Further, it is confirmed whether or not data protection processing (for example, addition of parity data) of the backup RAM area has been performed when the power is turned off (step S8). In this embodiment, when an unexpected power failure occurs, processing for protecting data in the backup RAM area is performed. When such protection processing is performed, it is assumed that there is a backup. If it is confirmed that there is no backup, the CPU 56 executes an initialization process after step S11.

  If it is confirmed that there is a backup, the CPU 56 performs a game state restoration process for returning the internal state of the game control means and the control state of the electric component control means such as the display control means to the state when the power is cut off (step S9). Then, the saved value of the PC (program counter) stored in the backup RAM area is set in the PC, and the address is restored.

  In the initialization process, the CPU 56 first performs a RAM clear process (step S11). Also, initial value setting processing is performed for setting initial values in predetermined work areas (for example, a normal symbol determination random number counter, a normal symbol determination buffer, a special symbol left middle right symbol buffer, a payout command storage pointer, etc.). Further, processing for initializing the sub-boards (lamp control board 35, payout control board 37, voice control board 70, symbol control board 80) is executed (step S13). The process of initializing the sub board is a process of sending an initial setting command, for example. As the initial setting command, for example, there is a payout enable state designation command (in the payout ready state) or a payout stop state designation command (in the payout impossible state) output to the payout control board 37. As a state where the payout is impossible, for example, there is a state where the ball break switch 187 or the full switch 48 is turned on. That is, the CPU 56 sends out a payout stop state designation command to the payout control board 37 if the ball break switch 187 or the full tank switch 48 is on, and sends out a payout possible state designation command otherwise. Note that the payout enable state designation command (in the payout enable state) or the payout stop state designation command (in the payout disable state) may be executed in the gaming state recovery process in step S9.

  Then, a CTC register set in the CPU 56 is set so that a timer interrupt is periodically generated every 2 ms (step S14). That is, a value corresponding to 2 ms is set in a predetermined register (time constant register) as an initial value.

  Thereafter, after setting the interrupt disabled state (step S15), a display random number update process for updating the count value of the counter for generating the display random number (step S16) and an initial value determining random number are generated. The initial value determination random number update process for updating the count value of the counter (step S17) is executed, and then the process for setting the interrupt enabled state (step S18) is repeatedly executed.

  Note that interrupt prohibition is realized by issuing an interrupt disable instruction, disabling the interrupt disable register, or setting a mask register. Interrupt enable issues an interrupt enable instruction. This is realized by setting the interrupt prohibition register to enable or resetting the mask register. The initial value determining random number is a random number for determining the initial value of the jackpot determining random number.

  As shown in FIG. 5, the counter update process (numerical value update process) of the counter in the display random number update process (step S16) and the initial value determination random number update process (step S17) is executed in an interrupt disabled state. Therefore, maskable interrupts such as timer interrupts do not occur when the numerical value update process is being executed. That is, the numerical value update process is executed without being interrupted by the interrupt process. In the example shown in FIG. 5, there are two random number update processes, but the display random number update process and the initial value determination random number update process may be combined into one subroutine. That is, it may be combined into one random number update process. When there is only one random number update process, the interrupt disabled state is set before the process starts, and the interrupt permitted state is set after the process ends. In addition, when there are a plurality of random number update processes, the interrupt disabled state may be set before the start of each random number update process, and the interrupt permitted state may be set after the end of each process. .

  In this embodiment, the built-in CTC of the CPU 56 is set to repeatedly generate a timer interrupt. In this embodiment, the repetition period is set to 2 ms. When a timer interrupt occurs, a timer interrupt process as illustrated in FIG. 6 is executed. In the timer interrupt process, the CPU 56 executes the game saving process of steps S21 to S32 after executing the register saving process. When the game control process is completed, a register return process is performed (step S33), and an interrupt permission state is set (step S34). When an interrupt occurs, all the bits corresponding to each interrupt in the mask register are automatically set to the on state (interrupt mask state).

  In the game control process, the CPU 56 first inputs the states of the switches such as the gate sensor 12, the start port sensor 17, the count sensor 23, and the winning port switches 19a, 19b, 24a, and 24b via the switch circuit 58, Is determined (switching process: step S21).

  Next, various abnormality diagnosis processes are performed by the self-diagnosis function provided in the pachinko gaming machine 1, and an alarm is issued if necessary according to the result (error process: step S22).

  Next, a process of updating each counter indicating each determination random number such as a big hit determination random number used for game control is performed (step S23). The CPU 56 further performs initial value determination random number update processing (step S24) and display random number update processing (step S25). Note that the processing in step S24 and step S25 is the same as the processing in step 16 and step S17.

  Further, the CPU 56 performs special symbol process processing (step S26). In the special symbol process control, corresponding processing is selected and executed according to a special symbol process flag for controlling the pachinko gaming machine 1 in a predetermined order according to the gaming state. The value of the special symbol process flag is updated during each process according to the gaming state. Further, normal symbol process processing is performed (step S27). In the normal symbol process, the corresponding process is selected and executed in accordance with the normal symbol process flag for controlling the variable display 10 using the 7-segment LED in a predetermined order. The value of the normal symbol process flag is updated during each process according to the gaming state.

  Next, the CPU 56 performs a process of setting a display control command related to the special symbol in a predetermined area of the RAM 55 and sending the display control command (special symbol command control process: step S28). In addition, a display control command related to the normal symbol is set in a predetermined area of the RAM 55, and a process of sending the display control command is performed (normal symbol command control process: step S29).

  Further, the CPU 56 performs information output processing for outputting data such as jackpot information, start information, probability variation information supplied to the hall management computer, for example (step S30).

  Further, the CPU 56 issues a drive command to the solenoid circuit 59 when a predetermined condition is satisfied (step S31). The solenoid circuit 59 drives the solenoids 16 and 21 in accordance with the drive command, thereby bringing the variable winning ball device 15 or the opening / closing plate 20 into an open state or a closed state.

  Then, the CPU 56 executes a prize ball process for setting the number of prize balls based on the detection outputs of the switches 17, 23, 19a, 19b, 24a, 24b for detecting a winning at each prize opening (step S32). ). Specifically, a payout control command is output to the payout control board 37 in response to winning detection. The payout control CPU 371 mounted on the payout control board 37 drives the ball payout device 97 according to the payout control command.

  With the above control, in this embodiment, the game control process is started every 2 ms. Also, until all of the game control processes are executed, the interrupt permission state is not set, so that no other interrupts or next timer interrupts are generated, and all the processes in the game control process are not performed. Complete execution without fail.

FIG. 7 is an explanatory diagram showing each random number. Each random number is used as follows.
(1) Random 1: Decide whether or not to generate a big hit (for big hit determination = specific game state determination)
(2) Random 2-1 to 2-3: For determining right and left middle special symbols (3) Random 3: Determining the symbol combination at the time of big hit (for big hit symbol determination = for special symbol judgment)
(4) Random 4: For determining an initial value (for determining an initial value of a jackpot determination random number)
(5) Random 5: For determining a variation pattern (for determining a variation pattern of a special symbol variably displayed on the variable display device 8)
(6) Random 6: For reach determination (if not a big hit, for determining whether to reach)
(7) Random 7: Reach design determination (for determining the combination of left and right special symbols when reaching)
(8) Random 8: For normal symbol determination (for determining a normal symbol to be stopped and displayed on the variable display 10)

  In order to enhance the game effect, random numbers other than the random numbers (1) to (8) are also used. In step S23, the CPU 56 counts up (adds 1) the counter for generating the jackpot determining random number (1), the jackpot determining random number (3), and the normal symbol determining random number (8). . That is, they are determination random numbers. In step S16 and step S25, the CPU 56 determines whether the special symbol determining random number (2), the random pattern determining random number (5), the reach determining random number (6), and the reaching symbol determining random number (7). Counts up (adds 1) the counter for generating. That is, they are display random numbers.

  The counter for generating random 2-2 is counted up when a carry of the counter for generating random 2-1 occurs (when it returns to the initial value “0” when it becomes “16”), The counter for generating random 2-3 is counted up when a carry of the counter for generating random 2-2 occurs. The counter for generating random 7 is counted up when a carry of the counter for generating random 6 occurs (when it returns to “199” and returns to the initial value “0”).

  FIG. 8 is a flowchart showing the determination random number update process. In the determination random number update process, the CPU 56 first adds 1 to a counter for generating random 1 (a big hit determination random number) (step S401). Then, it is determined whether or not the count value of the counter is smaller than “631” (step S402). If not smaller, that is, if 631 is reached, the value is returned to “0” (step S403). Further, the CPU 56 checks whether or not the count value of the counter for generating the random 1 matches the value set in the initial value buffer (step S404). If they match, the count value for generating random 4 is read, an initial value determining random number is extracted, the random value is set in a counter for generating random 1 (step S405), and an initial value buffer (Step S406).

  Through the processing in steps S404 to S406, the count value of the counter for generating random 1 is changed every time it makes one round (every 631 counts). Therefore, the randomness of the random 1 is further increased, and it is difficult to play a game aiming for a big hit. As a result, fraud can also be effectively prevented.

  Next, the CPU 56 adds 1 to a counter for generating a random 3 (a jackpot symbol determining random number) (step S407). Then, it is determined whether or not the counter value has reached “40” (step S408). If it has reached, the value is returned to “0” (step S409). Also, 1 is added to the counter for generating random 8 (ordinary symbol determination random number) (step S410). Then, it is determined whether or not the count value of the counter has reached “14” (step S411). If it has reached, the value is returned to "3" (step S412). That is, the possible range of the counter value for generating random 8 is 3 to 13.

  FIG. 9 is a flowchart showing initial value determination random number update processing. In the initial value determination random number update process, the CPU 56 adds 1 to a counter for generating random 4 (initial value determination random number) (step S421). Then, it is determined whether or not the count value of the counter has reached “631” (step S422). If reached, the value is returned to “0” (step S423).

  FIG. 10 is a flowchart showing the display random number update process. In the display random number update process, the CPU 56 adds 1 to a counter for generating random 5 (variation pattern determining random number) (step S431). Then, it is determined whether or not the count value of the counter has reached “251” (step S432). If it has reached, “251” is subtracted from the value (step S433).

  Next, the address of the counter for generating random 6 (reach determination random number) is set in the pointer (step S434). Further, the maximum judgment value of the counter is set (step S435), and the counter update processing subroutine is called (step S436). If the carry flag is set (step S437), the address of the counter for generating random 7 (reach symbol determination random number) is set in the pointer (step S438). Further, the maximum judgment value of the counter is set (step S439), and the counter update processing subroutine is called (step S440). The carry flag is set when a carry of the count value occurs in the counter update process (when the count value is returned to 0).

  Next, the CPU 56 sets the address of the counter for generating the random 2-1 (the left-side special symbol determination random number) to the pointer (step S441). Further, the maximum judgment value of the counter is set (step S442), and the counter update processing subroutine is called (step S443). If the carry flag is set (step S444), the address of a counter for generating random 2-2 (the random special symbol determining random number) is set in the pointer (step S445). Further, the maximum judgment value of the counter is set (step S446), and the counter update processing subroutine is called (step S447). If the carry flag is set (step S448), the address of the counter for generating random 2-3 (the random symbol for determining the right off special symbol) is set in the pointer (step S449). Further, the maximum judgment value of the counter is set (step S450), and the counter update processing subroutine is called (step S451).

  As described above, the reach determination random number for determining whether or not to reach, the reach design determining random number for determining the reach design, and the counter for generating the left and right special symbol determining random numbers in the left and right The count-up is executed in the counter update processing subroutine. Thus, the program capacity is saved by calling a common subroutine (module). However, random numbers 1, 3, 4, and 8 related to the occurrence of jackpots, determination of jackpot symbols, and determination of normal symbols are directly linked to the player's interests, so that each counter is used individually without using a common subroutine. The update process is performed.

  FIG. 11 is a flowchart showing a counter update processing subroutine. In the counter update processing subroutine, the CPU 56 specifies a counter to be updated based on the pointer (step S461), and adds 1 to the count value of the counter (step S462). Then, it is confirmed whether or not the count value is smaller than the maximum value (step S463). That is, it is confirmed whether or not the maximum value is reached. If the maximum value is reached, the counter value is returned to “0” (step S464). At this time, since a subtraction process is performed as an internal process of the CPU 56, a carry flag is set.

  FIG. 12 is a flowchart illustrating an example of a special symbol process processing program executed by the CPU 56. The special symbol process shown in FIG. 12 is a specific process of step S26 in the flowchart of FIG. When performing the special symbol process, the CPU 56 performs any one of steps S300 to S309 according to the internal state after performing the fluctuation shortening timer subtraction process (step S310). The variation shortening timer is a timer for setting the variation time when the variation time of the special symbol is shortened.

  Special symbol change waiting process (step S300): The start winning opening 14 is hit and the start opening switch 17 is awaited. When the start opening switch 17 is turned on, if the start winning memorized number is not full, the starting win memorized number is incremented by 1 and a jackpot determining random number or the like is extracted.

  Special symbol determination process (step S301): When variable symbol special display can be started, the number of start winning memories is confirmed. If the starting winning memorized number is not 0, it is determined whether to win or not depending on the value of the extracted jackpot determination random number.

  Stop symbol setting process (step S302): The stop symbol of the middle left and right symbols is determined.

  Reach operation setting process (step S303): When a big hit is not made, it is determined whether or not a reach operation is performed based on a reach determination random number. In the case of big hit and reach, a variation pattern for reach is determined.

  All symbol variation start processing (step S304): Control is performed so that the variation display device 8 starts variation of all symbols. At this time, the left / right middle final stop symbol and information for instructing the variation mode are transmitted to the symbol control board 80. When the process is finished, the internal state (process flag) is updated to shift to step S305.

  All symbol stop waiting process (step S305): When a predetermined time (the time indicated by the fluctuation reduction timer in step S310) has elapsed, all symbols displayed on the variable display device 8 are stopped. If the stop symbol is a combination of jackpot symbol, the internal state (process flag) is updated to shift to step S306. If not, the internal state is updated to shift to step S300.

  Big winning opening opening process (step S306): Control for opening the big winning opening is started. Specifically, the counter and the flag are initialized, and the solenoid 21 is driven to open the special winning opening. Also, a big hit flag (a flag indicating that a big hit is being made) is set. When the process is finished, the internal state (process flag) is updated to shift to step S307.

  Processing during opening of a special winning opening (step S307): Control for sending display control command data for displaying a large winning opening round to the lamp control board 35, processing for confirming the establishment of the closing condition of the special winning opening, and the like are performed. If the final closing condition of the big prize opening is satisfied, the internal state is updated to shift to step S308.

  Specific area valid time process (step S308): The presence / absence of passing of the V winning switch 22 is monitored, and the process of confirming that the big hit gaming state continuation condition is satisfied is performed. If the condition for continuing the big hit gaming state is satisfied and there are still remaining rounds, the internal state is updated to shift to step S306. In addition, when the big hit gaming state continuation condition is not satisfied within a predetermined effective time, or when all rounds are finished, the internal state is updated to shift to step S309.

  Big hit end process (step S309): A display for notifying the player that the big hit gaming state has ended is performed. When the display is completed, the internal state is updated to shift to step S300.

  FIG. 13 is a flowchart showing a process for determining that the hit ball has won the start winning opening 14. When the hit ball wins the start winning opening 14 provided in the game board, the start opening switch 17 is turned on. For example, in the special symbol variation waiting process in step S300 of the special symbol process, as shown in FIG. 13, when the CPU 56 determines that the start port switch 17 is turned on via the switch circuit 58 (step S41), the start is started. It is confirmed whether or not the number of winning prizes has reached the maximum value of 4 (step S42). If the starting winning memory number has not reached 4, the starting winning memory number is increased by 1 (step S43), and the value of each random number such as a big hit determination random number is extracted. Then, they are stored in a random value storage area corresponding to the value of the number of stored start winning prizes (step S44). When the start winning memory number has reached 4, the process for increasing the starting win memory number is not performed. That is, in this embodiment, it is possible to store the number of hit balls that have been won in a maximum of four start winning holes 17.

  In the special symbol process of step S26, the CPU 56 confirms the value of the number of start winning memories as shown in FIG. 14 (step S51). If the starting winning memory number is not 0, the value stored in the random number value storage area corresponding to the starting winning memory number = 1 is read (step S52), the value of the starting winning memory number is decreased by 1, and each The value in the random value storage area is shifted (step S53). That is, each value stored in the random number storage area corresponding to the starting winning memory number = n (n = 2, 3, 4) is stored in the random value storing area corresponding to the starting winning memory number = n−1. To do.

  Then, the CPU 56 determines the winning / losing based on the value read in step S52, that is, the extracted value of the jackpot determination random number (step S54). Here, the jackpot determination random number takes a value in the range of 0 to 630. As shown in FIG. 15, “big hit” is determined when the big hit determination random number value matches the big hit determination value, and “out of” is determined when the random value is any other value.

  When the big hit is determined, the big hit symbol determining random number (random 3) is extracted, and the big hit symbol is determined according to the value (step S55). In this embodiment, each symbol of the symbol number set in the jackpot symbol table corresponding to the extracted random 3 value is determined as a jackpot symbol. In the jackpot symbol table, left and right symbol numbers corresponding to combinations of a plurality of types of jackpot symbols are set. Further, the variation pattern of the symbol is determined based on the value read in step S52, that is, the value of the extracted random number for variation pattern determination (random 5) (step S56).

  If it is determined to be out of place, the CPU 56 determines whether or not to reach based on the extracted reach determination random number (random 6) (step S57). If it is decided to reach, the right and left middle symbols that establish the reach are determined based on the value of the reach design determining random number (random 7) (step S58). Thereafter, the process proceeds to step S56.

  If the reach is not reached, the outage stop symbol is determined. In this embodiment, the left symbol is determined according to the value read in step S52, that is, the extracted random 2-1 value (step S59). Further, the medium symbol is determined according to the value of random 2-2 (step S60). Then, the right symbol is determined according to the random 2-3 value (step S61). Here, when the determined left and right symbols match, for example, the symbol corresponding to the value obtained by adding 1 to the random number corresponding to the right symbol is set as the stop symbol of the right symbol, and the reach symbol (the symbol where the left and right symbols match) is determined. In combination). Thereafter, the process proceeds to step S56.

  FIG. 16 is a flowchart showing the normal symbol process (step S27). In the normal symbol process, the CPU 56 executes one of the processes shown in steps S72 to S76 according to the value of the normal symbol process flag after executing the gate switch process in step S71.

  In the gate switch processing, it is detected that the gate switch 12 is turned on based on the passing of the hit ball of the passing gate 11 which is a condition for starting the normal symbol variation. If the gate switch 12 is on, it is confirmed whether or not the gate passage storage counter has reached the maximum value (in this example, “4”). If not reached, the value of the gate passage storage counter is incremented by one. Note that the LED of the passage memory indicator 41 is turned on according to the value of the gate passage memory counter. And CPU56 extracts the value of the random number for normal symbol determination (random 8), and memorize | stores the value.

  In the normal symbol variation waiting process of step S72, the CPU 56 updates the value of the normal symbol process flag unless the value of the normal symbol passage storage counter is zero. If the value of the normal symbol passage storage counter is 0, nothing is done.

  If the value of the normal symbol passage storage counter is not 0, the value stored in the random number storage area corresponding to the gate passage storage number = 1 is read, and the read value, that is, the extracted normal symbol determination random number (random Based on the value of 8), hit / loss is determined (step S73). Further, in order to notify the symbol control board 80 of the stop symbol of the normal symbol, control for transmitting a display control command indicating the stop symbol is performed. Next, control for transmitting a display control command indicating the start of normal symbol variation is performed. Then, the normal symbol variation time timer is started.

  In the normal symbol variation process of step S74, it is confirmed whether or not the normal symbol variation time timer has timed out. If timed out, the normal symbol process flag is updated to a value indicating the normal symbol stop process.

  In the normal symbol stop process in step S75, control for transmitting a display control command indicating normal symbol fluctuation stop is performed. When it is decided to win, the normal symbol process flag is updated to a value indicating the start winning opening / closing process. In the start winning opening / closing process (step S76), control for opening the start winning opening (variable winning ball apparatus 15) for a predetermined period of time is performed. When it is determined to be off, the normal symbol process flag is updated to a value indicating the normal symbol variation waiting process.

  FIG. 17 is a timing chart showing an example of the relationship between the main process executed by the CPU 56 and the interrupt process. As shown in FIG. 17, when the power is turned on, first, the processes of steps S1 to S15 in the main process are performed, and then the display random number update process and the initial value determination random number update process are repeatedly executed in steps S15 to S18. Is done. When a timer interrupt occurs, the processes of steps S20 to S34 are executed in the timer interrupt process. When the execution is completed, the process returns to steps S15 to S18, and the display random number update process and the initial value determination random number update process are repeatedly performed.

  In the processes of steps S15 to S18, an interrupt prohibition process is performed before the display random number update process and the initial value determination random number update process, and an interrupt is performed after the display random number update process and the initial value determination random number update process are completed. Authorization processing is performed. Therefore, even if 2 ms elapses during the execution of the display random number update process and the initial value determination random number update process, the timer interrupt is not generated and the interrupt generation is reserved. When the display random number update process and the initial value determination random number update process are completed and the interrupt permission process is performed, a timer interrupt in a reserved state occurs.

  FIG. 18 is an explanatory diagram showing an example of the relationship between random 4 and random 1 (big hit determination random number) that are changed by the initial value determination random number update process. The counter that generates random 1 is cleared to 0 when the power is turned on. Also, since “0” is initially stored in the initial value buffer, the counter value advances to “630”, and when the value is incremented by 1 and returns to 0, the counter value matches the contents of the initial value buffer. Is detected (see step S404 in FIG. 8). Then, random 4 is extracted by the process of step S405. This time point is indicated by A in FIG.

  Here, it is assumed that the count value of the counter that generates the random 4 at that time is “19”. Then, “19” is extracted as random 4, and the value is stored in the initial value buffer (step S406), and the value is set in the counter that generates random 1 (step S405). Therefore, from this point, the counter that generates random 1 advances from the initial value “19”.

  When the value of the counter that generates random 1 again becomes “19”, it is detected that the counter value matches the contents of the initial value buffer. Then, random 4 is extracted. This time point is indicated by B in FIG. It is assumed that the count value of the counter that generates random 4 at that time is “195”. Then, “195” is extracted as random 4 and the value is stored in the initial value buffer, and the value is set in the counter that generates random 1. Accordingly, from this point, the counter that generates random 1 advances from the initial value “195”.

  When the value of the counter that generates random 1 again becomes “195”, it is detected that the counter value matches the contents of the initial value buffer. Then, random 4 is extracted. This time point is indicated by C in FIG. Assume that the count value of the counter that generates random 4 at that time is “n”. Then, “n” is extracted as random 6 and the value is stored in the initial value buffer, and the value is set in the counter that generates random 1. Therefore, from this point, the counter that generates random 1 advances from the initial value “n”.

  Thus, since the initial value of the counter for generating the big hit determination random number changes randomly according to the initial value determination random number, the randomness of the big hit determination random number is further improved.

  As described above, in this embodiment, the numerical value update process is repeatedly performed in the main process, and the game control process is executed in the timer interrupt process. When the numerical value update process is performed, Set to interrupt disabled state. Therefore, there is no possibility that the contents of the memory area handled in the numerical value update process will be altered by the game control process. Therefore, the numerical value updating process is surely executed, and the game control using the random number based on the updated numerical value is surely executed.

  In each of the above-described embodiments, the case where the image display unit 9 using a CRT for variably displaying a plurality of types of symbols has been described. However, a case where a variable display device using an LCD is used may be used. Also, a drum type or belt type variable display device may be used. Furthermore, it can also be applied to a video pachinko gaming machine in which the entire board is composed of video.

  In each of the above embodiments, the following inventions are also disclosed.

  Provided with variable display means capable of variably displaying a plurality of types of identification information capable of identifying each of them, starting variable display of the plurality of types of identification information based on the winning of the game medium in the specific winning portion, and identifying the plurality of types of identification information A gaming machine capable of shifting to a specific gaming state that is advantageous to the player when the display result of variable display of information becomes a specific display result, and repeatedly performs a predetermined process after performing an initial setting process Execution means for executing a main routine and an interrupt routine that is activated by interrupting the main routine in response to a timer interrupt that occurs every predetermined time during execution of the main routine. , A specific gaming state determination numerical value updating process for updating a specific gaming state determination numerical value for determining whether or not to enter a specific gaming state within a predetermined range, and a specific gaming state determination at a predetermined time An initial value changing process for changing an initial value for updating a numerical value to an initial value numerical value stored at a predetermined address in the RAM; and an initial value updating process for updating an initial value numerical value stored at a predetermined address; , A variation pattern determination numerical value updating process for updating the variation pattern determination numerical value stored in the specific address of the RAM, and a plurality of types determined in advance using the variation pattern determination numerical value stored in the specific address A game control process including a variable pattern determining process for determining a variable pattern of variable display of identification information performed by the variable display means from the variable pattern is executed, and also stored in a predetermined address as a predetermined process in the main routine. Initial value update processing that updates the initial value and the variable pattern stored at the specified address. The numerical value update process for determining the fluctuation pattern that updates the numerical value for determining the variable is executed, and interrupts by timer interrupts are prohibited before starting the numerical value update process for initial value and the numerical value update process for determining the fluctuation pattern in the main routine When the initial value update process and the variation pattern determination process are completed, timer interrupts are permitted.If a timer interrupt occurs in the interrupt disabled state, the timer interrupt is disabled. When the timer interrupt generation is reserved without being generated, and the interrupt prohibition is canceled and the interrupt enabled state is entered, the interrupt corresponding to the timer interrupt that has occurred in the interrupt disabled state is generated. A game machine characterized by starting execution of an embedded routine. According to such a configuration, the update process for the initial value value is not hindered by the process based on the interrupt, so that the control for improving the randomness of the numerical value for determining the specific gaming state is reliably executed. As a result, it is possible to effectively prevent fraud aimed at a specific gaming state. In addition, since the processing for updating the numerical value for determining the variation pattern for determining the variation pattern of the variable display of the identification information performed by the variable display means is not hindered by the processing based on the interrupt, the variation in the variable display of the identification information is surely performed. Patterns can be generated randomly. Furthermore, there is an effect that the execution of the game control process based on the timer interruption is not lost.

  A gaming machine configured to be set to an interrupt-disabled state during game control processing. According to such a configuration, no other interruption or next timer interruption occurs during the game control process, and all the processes in the game control process are reliably completed.

  A gaming machine configured to be set in an interrupt-permitted state before the game control process ends and the process returns to the execution of the main routine. According to such a configuration, when an occurrence of another interrupt or the next timer interrupt occurs during the execution of the game control process, the process corresponding to the interrupt is started immediately after the execution of the game control process is completed. be able to.

  In addition, the pachinko machine shown in the front view of FIG. 1 in each of the above embodiments, the special symbol stop symbol variably displayed on the image display unit 9 based on the start winning prize is a predetermined symbol. The first type pachinko gaming machine that can be given a predetermined game value to a player when it is a combination of the above, but if there is a prize in a predetermined area of the electric game that is released based on the start prize, the predetermined game value When there is a prize for a predetermined electric combination that is released when a combination of a predetermined symbol and a stop symbol of a symbol variably displayed based on a start winning prize is granted. The present invention can also be applied to a third type pachinko gaming machine in which a predetermined right is generated or continues.

  Further, the present invention is not limited to pachinko gaming machines in which the game medium is a game ball, and the present invention can be applied to slot machines and the like.

  The present invention can be applied to a game such as a pachinko gaming machine, and is particularly useful to be applied to a gaming machine capable of shifting to a specific gaming state that is advantageous to the player when a predetermined condition is satisfied.

It is the front view which looked at the pachinko machine from the front. It is a whole rear view which shows the internal structure of a pachinko gaming machine. It is the rear view which looked at the game board of the pachinko machine from the back. It is a block diagram which shows an example of the circuit structure in a game control board. It is a flowchart which shows the main process of a basic circuit. It is a flowchart which shows the interruption process of a basic circuit. It is explanatory drawing which shows each random number. It is a flowchart which shows the random number update process for determination. It is a flowchart which shows the random number update process for initial value determination. It is a flowchart which shows the random number update process for a display. It is a flowchart which shows a counter update process. It is a flowchart which shows a special symbol process process. It is a flowchart which shows the process which determines that the hit ball won the start winning opening. It is a flowchart which shows the process which determines whether it is a big hit. It is a flowchart which shows the process of jackpot determination. It is a flowchart which shows a normal symbol process process. It is a timing diagram which shows an example of the relationship between a main process and an interruption process. It is explanatory drawing which shows an example of the relationship between the random 4 and the random 1 (random number for jackpot determination).

Explanation of symbols

DESCRIPTION OF SYMBOLS 9 Variable display apparatus 10 Variable display apparatus 11 Passing gate 12 Gate switch 14 Start winning opening 15 Variable winning ball apparatus 17 Start opening switch 23 Count switch 31 Game control board (main board)
53 Basic circuit 56 CPU

Claims (1)

Provided with variable display means capable of variably displaying a plurality of types of identification information capable of identifying each of them, starting variable display of the plurality of types of identification information based on the winning of the game medium in the specific winning section, and identifying the plurality of types A gaming machine capable of shifting to a specific gaming state that is advantageous to the player when the display result of the variable display of information becomes the specific display result,
Initialization processing means for executing initialization processing including RAM clear processing when power supply to the gaming machine is started;
After the initialization processing means performs the initial setting process, the main routine is interrupted in response to a main routine that repeatedly executes a predetermined process and a timer interrupt that occurs every predetermined time during the execution of the main routine. Game control means including execution means for executing an activated interrupt routine;
Electric component control means for controlling electric components provided in the gaming machine based on the command transmitted by the game control means,
The execution means includes
In the interrupt routine, a specific gaming state determination numerical value update process for updating a specific gaming state determination numerical value for determining whether or not to enter a specific gaming state within a predetermined range, and the specific gaming state at a predetermined time An initial value change process for changing an initial value for updating a numerical value for determination to an initial value numerical value stored at a predetermined address in the RAM, and an initial value numerical value for updating the initial value numerical value stored at the predetermined address While performing game control processing including update processing,
Also in the main routine, as the predetermined process, an initial value numerical value update process for updating the initial value numerical value stored in the predetermined address is executed,
Disabling interrupts by the timer interrupt before starting the initial value update process in the main routine, permit interrupts by the timer interrupt after completion of the initial value update process,
The gaming machine according to claim 1, wherein the initialization processing means transmits an initial setting command to the electric component control means when executing the RAM clear processing.

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