JP2013162816A - Game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a game machine configured to enable early detection of a predetermined win/loss state continued due to an abnormal random number latch signal.SOLUTION: A game machine includes: a random number updating means for updating a random number value at predetermined timing; a random number storage means for storing a random number value updated by the random number updating means, on the basis of a detection signal for performing predetermined detection on a game; a random number acquisition means (step S304) for acquiring a random number value stored in the random number storage means; a lottery means for performing lottery as to whether to generate a profit state advantageous to a player by using a random number value acquired by the random number acquisition means (step S304); and a failure detection means (step S303, step S305) for detecting an abnormal condition of a random number value stored in the random number storage means in response to an abnormal detection signal.

Description

  The present invention relates to a gaming machine such as a pachinko machine, an arrangement ball machine, a sparrow ball game machine, and a slot. More specifically, the present invention can detect a malfunction that a certain winning state is continued early due to an abnormality in a random number latch signal. It relates to a possible gaming machine.

  As a conventional gaming machine such as a pachinko machine, for example, a gaming machine described in Patent Document 1 is known. This gaming machine determines whether or not the CPU has successfully acquired the hardware random number from the latch circuit. If the hardware random number has not been normally acquired, the gaming machine outputs a CPU latch signal to the latch circuit. After the hardware random number is latched in the latch register, the random number acquisition signal is output to the latch circuit, the hardware random number latched in the latch register is acquired, and the previously acquired hardware random number is overwritten.

JP 2009-183499 A

  However, although the gaming machine can detect that an abnormality has occurred in the hardware random number, it has a problem that it cannot detect that an abnormality has occurred in the latch signal itself.

  Therefore, if there is no abnormality in the hardware random number itself and there is an abnormality in the latch signal itself, the random number used for the lottery will not be updated. Therefore, if the random number that is not updated is the determination value of the loss, the gaming state of the loss will be On the other hand, there may be a disadvantage to the player, while if the random value that is not updated is a big hit judgment value, the winning gaming state is continued, which may be a disadvantage on the hall side. there were.

  In view of the above problems, an object of the present invention is to provide a gaming machine capable of early finding a problem that a certain winning state is continued due to an abnormality in a random number latch signal.

  The object of the present invention is achieved by the following means. In addition, although the code | symbol in a parenthesis attaches the referential mark of embodiment mentioned later, this invention is not limited to this.

  According to the gaming machine of the first aspect, the random number updating means (random number generating circuit 620a) for updating the random number value at a predetermined timing, and the random number value updated by the random number updating means (random number generating circuit 620a). Random number storage means (special symbol random value register 620b) for storing the symbol based on a detection signal (switch signal of the special symbol start port 42) for performing a predetermined detection relating to the game, and the random number storage means (special symbol random value) Random number acquisition means (step S53, step S304, step S3002, step S3008) for acquiring the random number value stored in the register 620b) and the random number acquisition means (step S53, step S304, step S3002, step S3008) The lottery means (sports) to draw whether or not to generate a profit state advantageous to the player using the random number S204) and an abnormality detection means for detecting an abnormality in the storage of the random number value by the random number storage means (special symbol random value register 620b) due to an abnormality of the detection signal (switch signal of the special symbol start port 42). Step S54, Step S303, Step S305, Step S3003, Step S3007, Step S3009, and a random number acquisition error flag register 6200a).

  According to the invention of claim 2, in the gaming machine according to claim 1, the symbol variation starting means for starting symbol variation based on an input signal (switch signal of the special symbol start port 42) by a predetermined input. (Step S204), and the abnormality detection means (step S54, step S303, step S305, step S3003, step S3007, step S3009) is newly added by the random number storage means (special symbol random value register 620b). An error occurs when the random number value is not stored and the process by the random number acquisition means (step S53, step S304, step S3002, step S3008) is performed based on the input signal (switch signal of the special symbol start port 42). It is characterized by being detected.

  According to the invention of claim 3, in the gaming machine of claim 2, the input signal (switch signal of the special symbol start port 42) and the detection signal (switch signal of the special symbol start port 42) are The signal is output on the basis of a common predetermined starting condition (entering the special symbol starting port 42 (winning)). Therefore, the processing can be simplified. In the slot, the operation of the start lever corresponds to a predetermined start condition.

  On the other hand, according to the invention of claim 4, in the gaming machine according to any one of claims 1 to 3, the random number value acquired by the random number acquisition means (step S53, step S3002) is used as a pending storage. It further has a hold storage means (step S304, step S3008) for storing a predetermined number, and the lottery means (step S204) uses the random number value stored in the hold storage means (step S304, step S3008). The abnormality detection means (step S54, step S305, step S3003, step S3007, step S3009) is selected by the random number acquisition means (step S53, step S3002). If the random number value is acquired, an abnormality detection flag (random number acquisition flag RAF) When the state is changed from the first state (OFF state) to the second state (ON state) and the processing by the holding storage unit (step S304, step S3008) is performed, or when the processing is performed, the abnormality detection flag ( When the random number acquisition flag RAF) is in the first state (OFF state), it is detected as an abnormality. Therefore, since the state of the abnormality detection flag is not changed after confirming the current state of the abnormality detection flag, the processing can be simplified.

  According to a fifth aspect of the present invention, in the gaming machine according to any one of the first to fourth aspects, the random number storage means (special symbol random value register 620b) includes the random number acquisition means (step S53). , Step S3002), the random number value updated by the random number updating means (random number generation circuit 620a) is newly stored based on the detection signal (switch signal of the special symbol start port 42) unless a random number value is acquired in step S3002). It is characterized by not. Therefore, it is possible to reduce a situation where an erroneous random number value is stored in the random number storage means due to noise or the like.

  According to the present invention, it is possible to detect a problem that a certain winning state is continued due to an abnormality in the random number latch signal at an early stage.

1 is a perspective view showing an appearance of a gaming machine according to a first embodiment of the present invention. It is a front view of the game board of the gaming machine according to the embodiment. It is a block diagram which shows the control apparatus of the game machine which concerns on the same embodiment. FIG. 4 is a circuit diagram of a main control board shown in FIG. 3. It is a block diagram of the random number circuit shown in FIG. (A) shows a special symbol jackpot determination table used when executing a special symbol winning lottery, and (b) shows a special symbol jackpot determining table used when executing a special symbol winning lottery. (C) is a figure which shows the determination table per normal symbol used when performing the lottery determination of a normal symbol. It is a flowchart figure explaining the main process of the main control which concerns on 1st Embodiment of this invention. It is a flowchart explaining the timer interruption process of the main control which concerns on the same embodiment. It is a flowchart figure explaining the processing content of the random number management process of the timer interruption process shown in FIG. It is a flowchart figure explaining the processing content of the normal symbol process of the timer interruption process shown in FIG. It is a flowchart figure explaining the processing content of the special symbol process of the timer interruption process shown in FIG. It is a flowchart figure explaining the processing content of the start opening check process shown in FIG. It is a flowchart figure explaining the processing content of the random number management process of the timer interruption process which concerns on 2nd Embodiment of this invention. It is a flowchart figure explaining the processing content of the start opening check processing concerning the embodiment. It is a block diagram of the random number circuit which concerns on 3rd Embodiment.

<First Embodiment>
Hereinafter, a first embodiment of a gaming machine according to the present invention will be described in detail with reference to FIGS. 1 to 12, taking a pachinko gaming machine as an example. First, the external configuration of the pachinko gaming machine according to the present embodiment will be described with reference to FIGS.

  As shown in FIG. 1, a pachinko gaming machine 1 has a rectangular front frame 3 attached to the front surface of a wooden outer frame 2 so that it can be opened and closed, and a game board storage frame (see FIG. 1) attached to the back surface of the front frame 3. (Not shown) in which the game board 4 is mounted. The game board 4 is mounted with the game area 40 shown in FIG. 2 facing the front, and a glass door frame 5 supporting transparent glass is provided on the front side of the game area 40 as shown in FIG. . The game area 40 is an area surrounded by a ball guide rail 6 (see FIG. 2) disposed on the surface of the game board 4.

  On the other hand, as shown in FIG. 1, the pachinko gaming machine 1 is provided with a front operation panel 7 below the glass door frame 5, and the front operation panel 7 is provided with an upper tray unit 8. The unit 8 is integrally formed with an upper tray 9 for storing discharged game balls. Further, the front operation panel 7 is provided with a ball lending button 11 and a prepaid card discharge button 12 (card return button 12). A push button type effect button device 13 that can change the effect by pressing when a built-in lamp (not shown) is lit is provided on the upper plate surface portion of the upper tray 9. Further, the upper tray 9 is provided with a ball removal button 14 for pulling downward the game balls stored in the upper tray 9.

  On the other hand, as shown in FIG. 1, a launch handle 15 for operating the launch unit is provided on the right end side of the front operation panel 7, and BGM (Background music) is provided on both upper side surfaces of the front frame 3. ) Or a speaker 16 that emits sound effects. A decorative lamp such as an LED lamp is disposed on the peripheral frame of the front frame 3.

  On the other hand, in the game area 40 of the game board 4, as shown in FIG. 2, a liquid crystal display device 41 made up of an LCD (Liquid Crystal Display) or the like is disposed at a substantially central portion. The liquid crystal display device 41 divides a display area into three areas, left, middle, and right, and can independently display a variable number, character, or design (decorative design).

  On the other hand, a special symbol start port 42 is disposed directly below the liquid crystal display device 41, and a special symbol start port switch (see FIG. 3) for detecting a winning ball is provided therein. A special winning opening 43 is provided on the right side of the special symbol starting opening 42, and a large winning opening switch (see FIG. 3) for detecting a winning ball is provided therein.

  On the other hand, a normal symbol start port 44 composed of a gate is disposed in the upper right part of the liquid crystal display device 41, and a normal symbol start port switch (see FIG. 3) for detecting the passage of a game ball is provided therein. It has been. Further, on the right side of the special winning opening 43 and the left side of the special symbol starting opening 42, general winning openings 45 are respectively arranged (in the drawing, one on the right side and three on the left side). Each is provided with a general winning opening switch (see FIG. 3) for detecting the passage of the game ball.

  Further, three 7 segments are arranged side by side in the lower right periphery of the game area 40 of the game board 4, of which two 7 segments are special symbol display devices 46, and the other 7 segments are reserved. The number of balls is displayed. On the left side of the special symbol display device 46, a normal symbol display device 47 composed of two LEDs is provided. A plurality of game nails (not shown) are provided in the game area 40 of the game board 4, and a windmill 48 as a game ball drop direction changing member is provided.

  Next, a control device that performs electronic control according to the progress of the game provided in the pachinko gaming machine 1 having the above-described external configuration will be described with reference to FIG. As shown in FIG. 3, the control device includes a power supply board 50 that receives an AC voltage AC24V, which is an external power supply supplied from a transformer (not shown) installed in a game store, and generates a plurality of types of DC voltages, A main control board 60 that controls the overall operation, a payout control board 70 that pays out a game ball based on a control command from the main control board 60, and an effect process in response to the control command from the main control board 60 This is mainly composed of an effect control board 80 to be performed. The production control board 80 receives the control command from the main control board 60 via the production I / F board 90.

  As shown in FIG. 3, the power supply board 50 includes a voltage generation unit 500, a voltage monitoring unit 510, and a system reset generation unit 520. The voltage generation unit 500 generates an AC voltage AC24V, which is an external power source supplied from a transformer (not shown) installed in a game store, and generates a plurality of types of DC voltages. Of the generated DC voltages, the DC voltage DC12V and the backup power supply VBB are supplied to the payout control board 70, and the DC voltages DC12V, DC32V and the backup power supply VBB are supplied to the main control board 60. Further, DC voltages DC5V, DC12V, DC15V and DC32V are supplied to the effect I / F board 90. The payout control board 70 is supplied with the AC voltage AC24V, which is the external power supply, via the power supply board 50.

  On the other hand, the voltage monitoring unit 510 monitors the voltage of the AC voltage AC24V. When this voltage is cut off or a power failure occurs, a voltage abnormality signal ALARM is detected (see FIG. 4). Is output to the main control board 60. The voltage abnormality signal ALARM outputs an “L” level signal when the voltage is abnormal, and outputs an “H” level signal when it is normal.

  On the other hand, the system reset generation unit 520 generates a system reset signal SYS_RST (see FIG. 4) at power-on. The generated system reset signal SYS_RST is used as the main control board 60, the payout control board 70, and the effect I. / F is output to the substrate 90.

  On the other hand, the main control board 60 is connected to each game component of the game board 4 via the game board relay board 100, whereby each start port 42, 44 and each prize-winning port 43, 45 on the game board 4 are connected. While receiving a switch signal provided in the game machine, a solenoid drive signal for driving solenoids such as the big prize opening 43 is transmitted to the game board relay board 100.

  When the main control board 60 receives a switch signal from each of the winning ports 43 and 45, the main control board 60 determines how many game balls are to be paid out to the player, and uses the determined information as the payout control command PAY_CMD (FIG. 4). On the other hand, from the payout control board 70, a prize ball count signal indicating a payout operation of the game ball and a status signal STAY_SIGNAL (see FIG. 4) relating to an abnormality in the payout operation are received. Note that the status signal STAY_SIGNAL includes, for example, an out-of-supply signal, an insufficient payout error signal, and a lower plate full signal.

  Further, when the main control board 60 receives the switch signal from each of the start ports 42 and 44, the main control board 60 generates a special gaming state advantageous to the player (so-called “winning”) or special advantageous to the player. A lottery of whether or not to generate a gaming state (so-called “losing”) is performed, and the variation pattern of the special symbol, the display pattern of the stop symbol or the normal symbol is determined according to the success / failure information which is the lottery result, and the determined information is It is transmitted to the special symbol display device 46 or the normal symbol display device 47. As a result, the lottery result is displayed on the special symbol display device 46 or the normal symbol display device 47. Further, the main control board 60 generates an effect control command DI_CMD (see FIG. 4) including the determined information, and transmits it to the effect I / F board 90. The main control board 60 supplies the game board relay board 100 with the DC voltage DC32V supplied from the power supply board 50.

  On the other hand, the payout control board 70 receives the payout control command PAY_CMD from the main control board 60, generates a payout motor signal based on the received payout control command PAY_CMD, and uses the payout motor signal thus generated as a payout motor. Control M and pay out the game ball to the player. Further, the payout control board 70 transmits a prize ball count signal indicating the payout operation of the game ball and a status signal STAY_SIGNAL (see FIG. 4) relating to the abnormality of the payout operation, and plays the game ball in response to the player's operation. A firing control signal for starting or stopping the operation of the firing control board 110 to be fired is transmitted. The payout control board 70 supplies the AC voltage AC24V supplied from the power supply board 50 to the launch control board 110.

  The effect control board 80 is equipped with ROM, RAM, CPU, sound LSI, and sound ROM (not shown), and the effect control transmitted from the main control board 60 via the effect I / F board 90. Based on the command DI_CMD (see FIG. 4), a signal for realizing a light effect by driving and controlling a decorative lamp such as an LED lamp disposed on the peripheral frame of the front frame 3 is an effect I / F board. A process of transmitting to the decorative lamp substrate 120 via 90 is performed. Further, the effect control board 80 sends a signal for realizing a sound effect by driving the speaker 16 based on the effect control command DI_CMD (see FIG. 4) via the effect I / F board 90. The process which transmits to 16 is performed. In addition, the effect control board 80 controls the liquid crystal control board 130 based on the effect control command DI_CMD (see FIG. 4) and outputs a signal for realizing the image effect by the liquid crystal display device 41. The process which transmits to the liquid crystal control board 130 via this is performed. The liquid crystal control board 130 stores various image data for displaying an image according to the contents of the effect, and further includes a VDP (Video Display Processor) that controls the overall effect output. Although not shown, each DC voltage supplied to the production I / F board 90 is supplied to each of the boards 80, 120, and 130.

  Here, the main control board 60 according to the characteristic part of the present invention will be described in more detail with reference to FIGS.

  FIG. 4 is a circuit diagram showing the circuit configuration of the main control board 60. As shown in FIG. 4, the main control board 60 stores a main control CPU 600, a control program describing a series of game control procedures, and the like. A one-chip microcomputer comprising a main control ROM 601 and a main control RAM 602 that functions as a work area, a buffer memory, and the like is mounted. The DC voltage DC12V generated by the power supply substrate 50 is converted from the DC voltage DC12V to the DC voltage VCC5V by the regulator 611 through the noise filter 610 that removes noise, and the converted DC voltage VCC5V is converted into the main control. It is supplied to the CPU 600.

  The backup power supply VBB (DC5V) generated by the power supply board 50 is supplied to the main control CPU 600 via a noise filter 612 for removing noise and a resistor R1.

  On the other hand, as shown in FIG. 4, the signal line of the system reset signal SYS_RST output from the power supply board 50 includes a pull-up resistor R2, an RC circuit of the resistor R3 and the capacitor C1, and two Schmitt triggers ST1 and ST2. And a pull-up resistor R4 are connected to the main control CPU 600. A pull-up resistor R5, an RC circuit of a resistor R6 and a capacitor C2, and a Schmitt trigger ST3 are connected to the signal line of the voltage abnormality signal ALARM output from the power supply substrate 50 and connected to the main control CPU 600. Has been. When this voltage abnormality signal ALARM transitions from the “H” level to the “L” level, a backup process of the data stored in the main control RAM 602 is performed. When the backup processing of the data stored in the main control RAM 602 is performed, the storage contents in the main control RAM 602 must be maintained. In order to maintain the storage contents, a backup power source is connected to the main control RAM 602. VBB (DC5V) is supplied.

  The main control CPU 600 is connected to a crystal oscillator 613 that generates a predetermined clock signal CLK.

  On the other hand, as shown in FIG. 4, the main control board 60 has a special symbol start opening 42, a normal symbol start opening 44, a big winning opening 43, and a general winning opening 45 from the game board relay board 100 (see FIG. 3). Each signal is received. These switch signals are input to the switch monitoring unit 614 via the pull-up resistors R10 to R12 of the DC voltage DC12V, and the switch monitoring unit 614 receiving the input converts these switch signals from the DC voltage DC12V to the DC voltage DC5V. At the same time, after confirming the presence or absence of disconnection of the switch signal, it is input to the main control CPU 600 via the pull-up resistors R13 to R15 of the DC voltage VCC5V.

  The main control CPU 600 receives these switch signals and transmits a solenoid driving signal for driving solenoids such as the big prize opening 43 to the game board relay board 100. Further, when the main control CPU 600 receives the switch signals from the big winning opening 43 and the general winning opening 45, the main control CPU 600 determines how many game balls are to be paid out to the player, and uses the determined information as a payout control command PAY_CMD. Transmit to the payout control board 70.

  Further, when the main control CPU 600 receives the switch signals from the special symbol start port 42 and the normal symbol start port 44, the main control CPU 600 generates a special game state advantageous to the player (so-called “winning”), or the player A special game state that is advantageous to the game (so-called “losing”) is determined by lottery, and the variation pattern of the special symbol, the display pattern of the stop symbol, or the normal symbol is determined according to the success / failure information as the result of the lottery. The lottery result is transmitted to the special symbol display device 46 or the normal symbol display device 47.

  Here, the details of the lottery will be described in more detail with reference to FIGS. 5 and 6. When the main control CPU 600 receives a switch signal from the special symbol start port 42, it transmits it to the random number circuit 620 in the main control CPU 600. . As a result, the random values used for the special symbol lottery are determined. That is, as shown in FIG. 5, the random number circuit 620 includes a random number generation circuit 620a, a special symbol random value register 620b, and a special symbol random number latch flag register 620c.

  The random number generation circuit 620a generates a random random value within a range of, for example, 2 bytes (0 to 65535) based on the predetermined clock signal CLK generated by the crystal oscillator 613 (see FIG. 4). The generated random number value is output to the special symbol random value register 620b. In the present embodiment, an example in which a random number value is generated based on the clock signal CLK generated by the crystal oscillator 613 has been described. However, the present invention is not limited thereto, and for example, the clock signal CLK generated by the crystal oscillator 613 is used. The random number value may be generated based on the clock signal obtained by dividing the frequency, and if the clock signal is built in the main control CPU 600, the random number value may be generated based on the signal.

  On the other hand, when the special symbol random value register 620b receives the switch signal of the special symbol start port 42, the random number value generated by the random number generation circuit 620a is held (latched) by 2 bytes, for example. When the random number value is held (latched) in the special symbol random number register 620b, the special symbol random number register 620b outputs a latch signal to the special symbol random number latch flag register 620c. As a result, “1” is set in the special symbol random number latch flag register 620c. The special symbol random value register 620b is generated by the random number generation circuit 620a when the switch signal of the special symbol start port 42 is an L level or H level signal of four cycles or more of the clock signal CLK. A random value is held (latched). In this way, even if noise or the like is input to the special symbol random value register 620b via the switch signal of the special symbol start port 42, the random number value generated by the random number generation circuit 620a is erroneously held ( The situation of latching can be reduced.

  As described above, when “1” is set in the special symbol random number latch flag register 620c, the special symbol random value register 620b can receive the random number generation circuit 620a even if the switch signal of the special symbol start port 42 is newly received. The new random number value generated in step S3 cannot be held (latched), and the main control CPU 600 reads out the random number value held (latched) in the special symbol random number value register 620b, thereby generating a random number. A new random value generated by the circuit 620a can be held (latched). That is, the special symbol random value register 620b outputs a read signal to the special symbol random number latch flag register 620c when the main control CPU 600 reads the held (latched) random number value, and thereby the special symbol random number latch flag 620b. “0” is set in the register 620c. Therefore, the special symbol random value register 620b can hold (latch) the new random number value generated by the random number generation circuit 620a by newly receiving the switch signal of the special symbol start port 42. Thus, even if noise or the like occurs in the switch signal of the special symbol start port 42 by holding the random number value held (latched) in the special symbol random value register 620b until it is read by the main control CPU 600, The situation where the special symbol random value register 620b holds (latches) an erroneous random number value can be reduced.

  As described above, when the main control CPU 600 reads the random number value held (latched) in the special symbol random value register 620b, the main control CPU 600 stores the read random number value and the main control ROM 601 in FIG. Compare with the values in the table.

  That is, when the main control CPU 600 reads the random number value held (latched) in the special symbol random value register 620b, it is stored in the read random number value and the special symbol jackpot determination table SDH_TBL shown in FIG. The special symbol jackpot is determined by comparing the values. In the special symbol jackpot determination table SDH_TBL, as shown in FIG. 6A, when the gaming state is the normal state, 10001 is stored as the lower limit value and 10164 is stored as the upper limit value. In the case of a probability variation state (hereinafter referred to as a probability variation state) which is a high probability state, 10001 is stored as the lower limit value and 11640 is stored as the upper limit value. Thereby, when the gaming state is the normal state and the random number value read by the main control CPU 600 is 10001 to 10164, the special symbol is a big hit, and the other random number values are lost. When the gaming state is a probable change state and the random number value read by the main control CPU 600 is 10001-1640, the special symbol is a big hit, and the other random values are lost, and the lottery result is a special symbol display device. 46 will be transmitted.

  Further, when the main control CPU 600 reads the random value held (latched) in the special symbol random value register 620b, the main control CPU 600 stores the read random number and the special symbol small hit determination table SDP_TBL shown in FIG. 6B. The special symbol small hit determination is performed by comparing the values. In the special symbol small hit determination table SDP_TBL, as shown in FIG. 6B, 20001 is stored as the lower limit value of the special symbol small hit determination value and 20164 is stored as the upper limit value. As a result, when the random number value read from the special symbol random value register 620b by the main control CPU 600 is 20001 to 20164, the special symbol is a small hit, and the other random values are lost, and the lottery result is obtained as a special symbol. It is transmitted to the display device 46.

  On the other hand, when the main control CPU 600 receives a switch signal from the normal symbol start port 44, the value stored in the normal symbol per unit determination table NPP_TBL shown in FIG. The hit determination of a normal symbol is performed by comparing with. As shown in FIG. 6C, the normal symbol hit determination table NPP_TBL stores 249 as the lower limit value and 250 as the upper limit value when the gaming state is the normal state, and the lower limit value when the gaming state is the probable change state. 4 is stored as the upper limit value. As a result, when the gaming state is the normal state and the software random number value is 249 to 250, the normal symbol is a win, and otherwise the game is lost. If the game state is a probable change state and the software random number value is 4 to 250, the normal symbol is a win, and otherwise the game is lost. Then, the lottery result is transmitted to the normal symbol display device 47. In the present embodiment, an example is shown in which software random numbers are used as the normal symbol winning / losing lottery, but of course, hardware random values may be used.

  Incidentally, as shown in FIG. 4, the main control board 60 is supplied with the DC voltage DC32V generated by the power supply board 50, and the DC voltage DC32V is output to the game board relay board 100, and this The output voltage is used as a voltage when driving solenoids such as the big prize opening 43.

  Next, an outline of a program stored in the main control ROM 601 of the main control board 60 according to the characteristic part of the present invention will be described with reference to FIGS.

<Main processing>
First, the main process will be described with reference to FIG. The main control CPU 600 first sets itself to an interrupt disabled state (step S1), and initializes register values and the like in the main control CPU 600 (step S2).

  Subsequently, the main control CPU 600 acquires the voltage abnormality signal ALARM twice, confirms whether or not the level of the voltage abnormality signal ALARM acquired twice coincides, and stores it in an internal register (not shown) (step). S3) The level of the voltage abnormality signal ALARM is confirmed. If the level of the voltage abnormality signal ALARM is “L” level (step S4: YES), the process returns to step S3. If the level of the voltage abnormality signal ALARM is “H” level (step S4: NO), The process proceeds to step S5. That is, main control CPU 600 repeats the same processing until voltage abnormality signal ALARM changes to a normal level (that is, “H” level) (steps S3 to S4). Thus, an accurate signal can be read by acquiring the voltage abnormality signal ALARM twice.

  Next, the main control CPU 600 permits data writing to the main control RAM 602 (step S5). As described above, by prohibiting data writing to the main control RAM 602 until the normal level (normal value) of the voltage abnormality signal ALARM is detected, an unstable signal is generated before the AC voltage AC24V is stably supplied. A situation where the main control RAM 602 is accessed and data stored in the main control RAM 602 is rewritten can be prevented.

  Next, the main control CPU 600 transmits a processing command for displaying the standby screen on the liquid crystal display device 41 to the effect I / F board 90 (step S6), and determines the content of the backup flag BFL (step S7). The backup flag BFL is data indicating whether or not the operation of the voltage monitoring process shown in FIG. 8 has been executed.

  If this backup flag BFL is in the OFF state (step S7: OFF), the voltage monitoring processing operation shown in FIG. 8 to be described later is not executed, and the main control CPU 600 completes the entire area in the main control RAM 602. A clearing process is performed (step S11). On the other hand, if the backup flag BFL is in the ON state (step S7: ON), the operation of the voltage monitoring process shown in FIG. 8 to be described later is being executed, so the main control CPU 600 calculates the checksum value. The checksum operation for this is performed (step S8). The checksum operation is an 8-bit addition operation for the work area of the main control RAM 602.

  When the checksum value is calculated, the main control CPU 600 performs a process of comparing the calculation result with the stored value at the SUM address in the main control RAM 602 (step S9). The stored calculation result is maintained by the backup power supply VBB together with other data stored in the main control RAM 602.

  If the stored value at the SUM address does not match the checksum value calculated in step S8 (step S9: NO), the main control CPU 600 clears all areas in the main control RAM 602. It performs (step S11). If they match (step S9: YES), the main control CPU 600 performs a process for returning to the gaming operation at the time of power-off based on the data stored in the main control RAM 602 (step S10).

  Next, the main control CPU 600 performs setting of CTC (Counter Timer Circuit) having a function of creating a pulse output of a constant period, a function of time measurement, and the like provided therein after the processing of Step S10 and Step S11. . That is, the main control CPU 600 sets the CTC time constant register so that a timer interrupt is periodically generated every 4 ms (step S12). Next, the main control CPU 600 performs various random number counter update processing (step S14) in a state where interruption to itself is set to a prohibited state (step S13). In this various random number update processing, the initial value random number for normal symbol determination used to change the initial value of the random number for normal symbol determination used for the normal symbol success / failure lottery and the special symbol variation pattern command are determined. Update of random numbers for variation patterns used for the lottery of the above.

  After that, the main control CPU 600 returns to the interrupt permission state (step S15) and performs a process of returning to step S13.

<Timer interrupt processing>
Next, with reference to FIG. 8, a timer interrupt program started every 4 ms by interrupting the main process described above will be described. When this timer interruption occurs, a saving process for saving the contents of the register group in the main control CPU 600 to the stack area of the main control RAM 602 is executed (step S30), and then a voltage monitoring process is executed (step S31). In this voltage monitoring process, the level of the voltage abnormality signal ALARM output from the power supply board 50 is determined. If the voltage abnormality signal ALARM is “L” level (abnormal level), the data stored in the main control RAM 602 is stored. Backup process, that is, a process of calculating a checksum value of the data and storing the calculated checksum value in the main control RAM 602 as backup data.

  Next, when the voltage monitoring process (step S31) ends, the main control CPU 600 performs a timer subtraction process for a timer that manages the time of each gaming operation (step S32). The timer subtracted here is used to manage the opening time of the special winning opening 43 (see FIG. 2), the game effect time such as the normal symbol fluctuation time, the special symbol fluctuation time, the fraud information timer, and the like. Is.

  Subsequently, the main control CPU 600 receives ON / OFF signals of various switches including the switches of the winning ports 43 and 45 and the starting ports 42 and 44 (see FIG. 2), and turns ON / OFF in the work area. The signal level and its rising state are stored (step S33). This switch input process also performs a process of invalidating the standing-up state (winning invalid) when there is an illegal winning, and how many game balls are placed in the winning holes 43 and 45 in order to pay out the winning balls. We are also counting whether he won the prize.

  Thereafter, the main control CPU 600 performs error management processing (step S34). Note that the error management process includes a determination as to whether or not an abnormality has occurred inside the device, such as supply of game balls being stopped or game balls being clogged.

  Next, the main control CPU 600 executes prize ball management processing (step S35). In the prize ball management process, a payout control command PAY_CMD (see FIG. 4) for causing the payout control board 70 to perform a payout operation is output.

  Next, the main control CPU 600 executes a random number management process for updating the random number related to each variable display game (step S36). This random number management process executes a process for updating the random number value for determining the normal symbol used for the lottery determination, a process for updating the random number value for the special symbol for determining the type of the special symbol, and the like. The details of this random number management process will be described later.

  Next, the main control CPU 600 executes normal symbol processing (step S37). In this normal symbol processing, a normal symbol winning / losing lottery is executed, and the variation pattern of the normal symbol and the stop display state of the normal symbol are determined based on the lottery result. The details of this normal symbol processing will be described later.

  Next, the main control CPU 600 executes special symbol processing (step S38). In this special symbol process, whether or not a special symbol is selected is determined, and a variation pattern of the special symbol and a stop display mode of the special symbol (stop special symbol) are determined based on the result of the lottery. Details of this special symbol process will be described later.

  Next, the main control CPU 600 executes LED management processing (step S39). This LED management process is a process of creating output data to the special symbol display device 46 and the normal symbol display device 47 and outputting a control signal based on the data according to the progress of the process.

  Next, the main control CPU 600 executes a solenoid driving process for realizing the opening / closing operation of the special prize opening 43 (see FIG. 2) (step S40), returns to the interrupt permission state (step S41), and stacks the main control RAM 602. The contents of the register saved in the area are restored, and the timer interrupt is finished (step S42). As a result, the process returns from the interrupt process routine to the main process (see FIG. 7).

<Random number management processing>
Here, the random number management process (step S36 in FIG. 8) will be described in detail with reference to FIG. As shown in FIG. 9, in the random number management process, first, it is confirmed whether or not an abnormality has occurred in the random number circuit 620 (see FIG. 4). That is, the random number circuit 620 detects an error in the random number error status register built in the main control CPU 600 when an error is detected such that the random number value of the random number generation circuit 620a (see FIG. 5) is not normally updated. Set the flag to “1”. Therefore, the main control CPU 600 checks whether or not the error flag is “1”. If the error flag is “1”, the main control CPU 600 determines the random number circuit 620 (see FIG. 4). And the random number circuit 620 abnormality command is transmitted to the effect control board 80 (see FIG. 3) (step S50).

  After that, the main control CPU 600 acquires the value of the special symbol random number latch flag register 620c (see FIG. 5) (step S51). As a result, when the special symbol random number latch flag is set to “1” (step S52: ON), the main control CPU 600 acquires the random number value held (latched) in the special symbol random value register 620b, and performs the main control. The data is stored in the RAM 602 area (step S53). After that, the main control CPU 600 sets the random number acquisition flag RAF to ON (step S54), and proceeds to the process of step S55. The random number acquisition flag RAF is a random number that is normally held (latched) in the special symbol random value register 620b and that is stored (latched) in the special symbol random value register 620b. This is a flag for confirming whether or not a numerical value has been acquired.

  On the other hand, when “1” is not set in the special symbol random number latch flag (step S52: OFF), the main control CPU 600 does not perform the processes of steps S53 and S54, and proceeds to the process of step S55.

  In this way, the main control CPU 600 that has shifted to step S55 performs a random number update process. That is, the main control CPU 600 executes a random number update process such as updating the random number value for determining the normal symbol used in the lottery determination or updating the random number value for the special symbol that determines the type of the special symbol ( Step S55).

<Normal symbol processing>
Next, the normal symbol processing (step S37 in FIG. 8) will be described in detail with reference to FIG. As shown in FIG. 10, in the normal symbol processing, first, it is confirmed whether or not the passing of the game ball is detected at the normal symbol starting port 44 composed of the gate, that is, the level of the switch signal of the normal symbol starting port 44 is determined. Confirm (step S100). When the passing of the game ball is detected (step S100: YES), the main control CPU 600 stores the number of reserved balls for normal symbols in order to determine whether the number of reserved balls for normal symbols is 4 or more, for example. The main control RAM 602 area is confirmed (step S101). If the number of reserved balls for normal symbols is less than 4 (step S101: ≠ MAX), the number of reserved balls for normal symbols is incremented by 1 (step S102). After that, the main control CPU 600 obtains the normal symbol random number value used in the normal symbol success / failure lottery updated in step S55 of FIG. 9, and the obtained random number value is stored with the number of reserved balls in the normal symbol. Stored in the main control RAM 602 area (step S103), the process proceeds to step S104.

  On the other hand, when it is not detected in step S100 that a game ball has passed (step S100: NO), in step S101, when it is determined that the number of normally reserved action balls is 4 or more (step S101: = MAX) does not perform the processing of steps S102 to S103, and proceeds to the processing of step S104.

  When the main control CPU 600 proceeds to the process of step S104, the main control CPU 600 checks whether the normal symbol per operation flag is set to ON, that is, whether the normal symbol per operation flag is set to 5AH (step S104). If the normal symbol per action flag is set to 5AH (step S104: ON), it is determined that the normal symbol is hitting, and after updating the display data of the normal symbol (step S113), the normal symbol processing Is ended, and the process proceeds to the special symbol process in step S38 shown in FIG.

  On the other hand, if 5 AH is not set in the normal symbol operation flag (step S104: OFF), the processing state indicating the behavior of the normal symbol, that is, the value of the normal symbol operation status flag is confirmed (step S105). If the normal symbol operation status flag is 00H, the main control CPU 600 determines that the normal symbol is in a state prior to the start of fluctuation, and proceeds to step S106 to determine whether or not the normal symbol operation pending ball count is zero. Confirmation (step S106).

  If the main control CPU 600 confirms the main control RAM 602 area where the number of active balls for normal symbols is stored and determines that it is 0 (step S106: = 0), the display data of the normal symbol is updated. Is performed (step S113), the normal symbol process is terminated, and the process proceeds to the special symbol process of step S38 shown in FIG. On the other hand, when it is determined that it is not 0 (step S106: ≠ 0), 1 is subtracted from the number of reserved balls for normal symbols (step S107).

  After that, the main control CPU 600 makes a hit determination of a random number value corresponding to the number of operation reserved balls stored in the main control RAM 602 area using the normal symbol hit determination table NPP_TBL shown in FIG. That is, if the normal symbol probability change flag indicating the gaming state is OFF, the main control CPU 600 determines that the random number value is a lower limit value (in the drawing, the normal symbol per determination table NPP_TBL (normal state) shown in FIG. 6C). 249) or more, it is determined whether or not it is the upper limit value (250 in the figure) or not. In other cases, the normal symbol hit determination flag is turned OFF.

  On the other hand, if the normal symbol probability change flag indicating the gaming state is ON, the random number is equal to or higher than the lower limit value (4 in the figure) of the normal symbol per determination table NPP_TBL (probability variation state) shown in FIG. It is determined whether or not it is equal to or less than a value (250 in the figure), and if it is greater than or equal to the lower limit value and less than or equal to the upper limit value, 5AH is set to the normal symbol hit determination flag and turned ON. In other cases, a process for setting the normal symbol hit determination flag to OFF is performed (step S108).

  The main control CPU 600 determines a stop symbol (normal symbol stop symbol) based on the lottery result determined in the random number lottery process (step S109).

  Next, the main control CPU 600 checks whether the normal symbol time reduction flag for shortening the normal symbol variation time is set to ON. If it is set to ON, the main control CPU 600 sets the normal symbol variation timer to the corresponding variation time. If it is set to OFF, a process of setting a normal fluctuation time in the normal symbol fluctuation timer is performed (step S110).

  Next, the main control CPU 600 shifts the storage area of the main control RAM 602 area in which random numbers used in the normal symbol corresponding lottery corresponding to the number of reserved balls for normal symbols are stored (step S111). That is, assuming that the maximum number of the normal design active ball holdings can be held, the random number value used in the normal symbol corresponding to the normal symbol corresponding to the normal symbol operation holding ball number of 4 is set to the normal symbol operation holding ball number 3. Shift to the main control RAM 602 area where the random number value used for the corresponding normal symbol winning lottery was stored, and the random number value used for the normal symbol corresponding lottery number 3 corresponding to the normal symbol operation holding ball number of the normal symbol It shifts to the main control RAM 602 area where the random number value used for the normal symbol corresponding to the number 2 of active reserved balls is stored, and is used for the normal symbol corresponding lottery corresponding to the number 2 of active reserved balls. A process of shifting the random number value to the main control RAM 602 area in which the random number value used for the normal design winning / slotting lottery corresponding to the number of the operation reserved balls of the normal symbol is stored is performed.

  After this processing, the main control CPU 600 sets 01H to the normal symbol operation status flag used in the above step S105, and the random number value used in the normal symbol corresponding lottery number 4 corresponding to the normal symbol operation holding ball number 4 is set. A process of setting 00H in the stored area of the main control RAM 602 is performed (step S112).

  Then, after completing the process of step S112, the main control CPU 600 updates the display data of the normal symbol (step S113), ends the normal symbol process, and proceeds to the special symbol process of step S38 shown in FIG. To do.

  On the other hand, if the processing state indicating the behavior of the normal symbol, that is, the value of the normal symbol operation status flag is 01H in step S105, the main control CPU 600 indicates that the normal symbol is changing. Judgment is made, and the process proceeds to step S114 to check whether or not the normal symbol variation timer is 0 (step S114). If the normal symbol variation timer is not 0 (step S114: ≠ 0), the normal symbol display data is updated (step S113), the normal symbol processing is terminated, and the process proceeds to the special symbol processing of step S38 shown in FIG. To do. If the normal symbol variation timer is 0 (step S114: = 0), the main control CPU 600 sets 02H to the normal symbol operation status flag used in step S105, and the normal symbol success / failure lottery result is constant. In order to maintain the time, for example, a time of about 600 ms is set in the normal symbol variation timer (step S115).

  After completing the process of step S115, the main control CPU 600 updates the display data of the normal symbol (step S113), ends the normal symbol process, and proceeds to the special symbol process of step S38 shown in FIG.

  On the other hand, if the main control CPU 600 determines that the processing state indicating the behavior of the normal symbol, that is, the value of the normal symbol operation status flag is 02H in step S105, the main control CPU 600 indicates that the normal symbol is in the confirmation time (normal It is determined that the symbol variation has ended and is stopped), and the process proceeds to step S116 to check whether or not the normal symbol variation timer is 0 (step S116). If the normal symbol variation timer is not 0 (step S116: ≠ 0), the normal symbol display data is updated (step S113), the normal symbol processing is terminated, and the process proceeds to the special symbol processing of step S38 shown in FIG. To do. If the normal symbol variation timer is 0 (step S116: = 0), the main control CPU 600 sets 00H in the normal symbol operation status flag used in step S105 (step S117), and the normal symbol hit determination is performed. It is confirmed whether the flag is set to ON (5AH is set) (step S118).

  Thereby, if the normal symbol hit determination flag is set to OFF (5AH is not set) (step S118: OFF), the main control CPU 600 updates the display data of the normal symbol (step S113). The normal symbol process is terminated, and the process proceeds to the special symbol process of step S38 shown in FIG. If the normal symbol hit determination flag is set to ON (5AH is set) (step S118: ON), the main control CPU 600 turns on the normal symbol hit flag used in step S104 (sets 5AH). (Step S119), the normal symbol process is terminated, and the process proceeds to the special symbol process of step S38 shown in FIG.

<Special symbol processing>
Next, the special symbol process (step S38 in FIG. 8) will be described in detail with reference to FIGS. As shown in FIG. 11, in the special symbol process, first, it is confirmed whether or not a game ball entry (winning ball) is detected at the special symbol start port 42 (step S200).

<Special symbol processing: Start-up check processing>
This process will be described in detail with reference to FIG. 12. The main control CPU 600 confirms whether or not a game ball has entered (wins) the special symbol start port 42, that is, the switch signal of the special symbol start port 42 The level is confirmed (step S300). Thereby, if the game ball entering (winning) is not detected (step S300: NO), the process proceeds to step S201 in FIG. 11 and if the game ball entering (winning) is detected (step S300: YES). ) The main control CPU 600 checks the main control RAM 602 area in which the number of reserved balls for special symbols is stored in order to determine whether the number of reserved balls for special symbols is 4 or more, for example (step S301).

  If the number of reserved balls for operation of the special symbol is less than 4 (step S301: ≠ MAX), the number of reserved balls for operation of the special symbol is incremented by 1 (step S302). Thereafter, the main control CPU 600 confirms whether or not the random number acquisition flag RAF (see step S54 in FIG. 9) is set to OFF, and if it is set to ON (step S303: NO), the step in FIG. The random number value stored in the main control RAM 602 is acquired in S52, and the special symbol random number value and fluctuation pattern disturbance used when stopping the special symbol updated in step S14 of FIG. 7 or step S55 of FIG. A numerical value is acquired, and each of these random numbers is stored in the main control RAM 602 area where the number of operation-suspended balls of special symbols is stored (step S304). Thereafter, the main control CPU 600 sets the random number acquisition flag RAF to OFF (step S305).

  On the other hand, if the random number acquisition flag RAF (see FIG. 9) is set to OFF, the main control CPU 600 transmits a random number circuit 620 abnormality command to the effect control board 80. As a result, the effect control board 80 transmits an abnormal command to the decorative lamp board 120 and the liquid crystal control board 130. Based on this command, the decorative lamp board 120 drives and controls the decorative lamp such as an LED lamp to turn on or blink the decorative lamp, and the liquid crystal control board 130 has an abnormality in the liquid crystal display device 41. Display the effect. In this way, the occurrence of an abnormality is notified to the outside.

  In addition, if the random number acquisition flag RAF (see FIG. 9) is set to OFF, the main control CPU 600 sets the loss value (for example, 0000H) in the main control RAM 602 area in which the number of reserved balls for special symbols is stored. Store (step S306). As a result, even if the random number value that has not been updated is a jackpot determination value, the winning gaming state is not continued, so that it is possible to prevent a disadvantage on the hole side.

  Thus, by providing the random number acquisition flag RAF as described above, an abnormality in the special symbol start port switch signal (random number latch signal) can be detected at an early stage. That is, if the switch signal of the special symbol start port 42 detects the entry, the random number value held (latched) in the special symbol random value register 620b is normally held (latched), and the special symbol random value register The random number acquisition flag RAF for confirming whether or not the random number value held (latched) at 620b has been acquired should be set to ON. If the random number acquisition flag RAF is set to OFF, a special symbol It is considered that an abnormality such as a signal disconnection occurred while the switch signal of the special symbol start port 42 was input to the random value register 620b. Therefore, the abnormality of the special symbol start port switch signal (random number latch signal) can be detected early.

  In other words, according to the above configuration, the random number value updated by the random number generation circuit 620a is not stored in the special symbol random value register 620b due to an abnormality in the switch signal (random number latch signal) of the special symbol start port 42, and the special symbol start value 42 By detecting a ball entry by the switch signal of the symbol start port 42, a random number value that is not updated is acquired from the special symbol random value register 620b, and a problem that a lottery is performed based on the random number value can be found early. .

  Regardless of the ON / OFF setting of the random number acquisition flag RAF, the random number value held (latched) in the special symbol random value register 620b is acquired and stored in the main control RAM 602 area, and then the random number acquisition flag RAF is turned ON. After setting and storing a random number value in the main control RAM 602 area where the number of reserved balls for special symbols is stored, the random number acquisition flag RAF is set to OFF. Therefore, since the random number acquisition flag RAF is not set to ON or OFF after the ON / OFF of the random number acquisition flag RAF is confirmed, the processing can be simplified.

  Next, the main control CPU 600 confirms the current gaming state (whether or not the special symbol jackpot determination flag is set to ON, etc.), and determines whether or not prefetching is prohibited (step S307). If it is not in the prefetch prohibition state (step S307: NO), the main control CPU 600 obtains a random number value used in the lottery for special symbols stored in the main control RAM 602 in step S304 (step S308), and further A start opening winning random number determination table (not shown) is acquired (step S309).

  Next, the main control CPU 600 performs a jackpot lottery using the random number value acquired in step S308 and the starting port winning random number determination table acquired in step S309, and further in the main control RAM 602 in step S304. Using the stored special symbol random value, the type of jackpot (15R probability variation jackpot, 15R non-probability variation jackpot, etc.) is determined, and the variation pattern random number value stored in the main control RAM 602 in step S304 is used to vary A pattern is determined, and a special symbol start opening prize command command corresponding to the pattern is generated (step S310).

  Next, the main control CPU 600 generates a lower byte pending addition command corresponding to the generated special symbol start port winning command, and proceeds to the process of step S311.

  On the other hand, the main control CPU 600 proceeds to the process of step S312 without performing the processes of steps S302 to S311 if the number of the operation reserved balls of the special symbol is 4 or more in step S301 (step S301: = MAX). If it is determined in step S307 that the prefetching is prohibited (step S307: YES), the process proceeds to step S312 without performing steps S308 to S311.

  In the process of step S312, the main control CPU 600 generates an upper byte hold addition command corresponding to the increased number of held balls (step S312), and then the main control CPU 600 sends the hold addition command to the effect control board 80 ( (See FIG. 3) (step S313). Thereby, the main control CPU 600 finishes the process of step S200 shown in FIG. 11, and proceeds to the process of step S201.

<Special symbol processing>
Next, returning to FIG. 11, the special symbol process will be described. After the above process, the main control CPU 600 checks whether the special symbol small hit operation flag is set to ON, that is, whether the special symbol small hit operation flag is set to 5AH (step S201). If 5AH is set in the special symbol small hit operation flag (step S201: ON), it is determined that the special symbol is in a small hit, and after updating the display data of the special symbol (step S207), the special symbol The symbol process is terminated, and the process proceeds to the LED management process in step S39 shown in FIG.

  On the other hand, if 5AH is not set in the special symbol small hit operation flag (step S201: OFF), is the special symbol big hit operation flag set to ON, that is, whether the special symbol big hit operation flag is set to 5AH? Is confirmed (step S202). If the special symbol jackpot activation flag is set to 5AH (step S202: ON), it is determined that the special symbol is being jackpotted, and after updating the display data of the special symbol (step S207), the special symbol processing And the process proceeds to the LED management process in step S39 shown in FIG.

  On the other hand, if 5AH is not set in the special symbol big hit operation flag (step S202: OFF), the processing state indicating the behavior of the special symbol, that is, the value of the special symbol operation status flag is confirmed (step S203). More specifically, if the value of the special symbol operation status flag is 00H or 01H, the main control CPU 600 is in a special symbol variation standby state (the special symbol variation is not performed and is in a standby state for the next variation. And a special symbol variation start process is performed (step S204). In this special symbol variation start process, the special symbol big hit determination table SDH_TBL shown in FIG. 6A and the special symbol small hit determination table SDP_TBL shown in FIG. 6B are stored in the main control RAM 602 area. Random value hit determination corresponding to the number of activated balls on the symbol is executed.

  That is, if the special symbol probability change flag indicating the gaming state is OFF, the main control CPU 600 determines that the random number value corresponding to the number of reserved balls in the special symbol is the special symbol jackpot determination table SDH_TBL (normally shown in FIG. 6A). It is determined whether it is greater than or equal to the lower limit value (in the figure, 10001) and less than or equal to the upper limit value (in the figure, 10164). , Turn it on. In other cases, the special symbol jackpot determination flag is turned OFF.

  On the other hand, if the special symbol probability changing flag indicating the gaming state is ON, a random value corresponding to the number of reserved balls in the special symbol is a lower limit value of the special symbol jackpot determination table SDH_TBL (probability changing state) shown in FIG. It is determined whether it is greater than or equal to (10001 in the figure) and less than or equal to the upper limit (11640 in the figure). If it is greater than or equal to the lower limit and less than or equal to the upper limit, 5AH is set in the special symbol jackpot determination flag. In other cases, processing for setting the special symbol jackpot determination flag to OFF is performed.

  Further, the main control CPU 600 determines that the random number value corresponding to the number of reserved balls for operation of the special symbol is equal to or higher than the lower limit value (20001) in the special symbol small hit determination table SDP_TBL shown in FIG. Then, it is determined whether it is less than or equal to 20164), and if it is greater than or equal to the lower limit value and less than or equal to the upper limit value, the special symbol small hit determination flag is set to 5AH and turned ON. In other cases, the special symbol small hit determination flag is turned OFF.

  Thus, the random number lottery for the special symbol is executed in the special symbol variation start process.

  On the other hand, when the value of the special symbol operation status flag is 02H, it is determined that the special symbol is changing (indicating that the special symbol is currently changing), and the special symbol changing process is performed (step S205). If the value of the special symbol operation status flag is 03H, it is determined that the special symbol is being confirmed (indicating that the special symbol has been changed and stopped), and the special symbol confirmation time processing is performed. This is performed (step S206).

  Next, when the main control CPU 600 finishes any one of the above steps S204, S205, and S206, it updates the display data of the special symbol (step S207), and then ends the special symbol processing. It will transfer to the LED management process of step S39 shown.

  Thus, according to the present embodiment described above, it is possible to detect at an early stage a problem that a certain winning state is continued due to an abnormality in the random number latch signal.

  In the present embodiment, an example in which the random number acquisition flag RAF is provided only for the special symbol processing has been described. However, it is preferable to provide the random number acquisition flag RAF in the case of using a hardware random number value for the normal symbol processing as well. .

Second Embodiment
Next, a second embodiment of the present invention will be described with reference to FIGS. In addition, about the same structure as 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  As shown in FIGS. 13 and 14, the difference between the second embodiment and the first embodiment is that the random number management process and the special symbol process (particularly, the start opening check process) are performed during the timer interrupt process shown in FIG. Only the contents are different. That is, as shown in FIG. 13, the random number management process according to the present embodiment performs only the processes of step S50 and step S55.

  On the other hand, as shown in FIG. 14, in the special symbol process starting port check process (step S200) shown in FIG. 11, first, the main control CPU 600 sets the value of the special symbol random number latch flag register 620c (see FIG. 5). Obtain (step S3000). As a result, when the special symbol random number latch flag is set to “1” (step S3001: ON), the main control CPU 600 acquires the random number value held (latched) in the special symbol random value register 620b and performs the main control. The data is stored in a register (not shown) in the CPU 600 (step S3002). Thereafter, the main control CPU 600 sets the random number acquisition flag RAF to ON (step S3003), and proceeds to the process of step S3004.

  On the other hand, when “1” is not set in the special symbol random number latch flag (step S3001: OFF), the main control CPU 600 does not perform the processes of steps S3002 and S3003, and shifts to the process of step S3004.

  After finishing the above processing, the main control CPU 600 confirms whether or not a game ball has entered (wins) the special symbol start port 42, that is, confirms the level of the switch signal at the special symbol start port 42 (step). S3004). Accordingly, if a game ball entry (winning) is not detected (step S3004: NO), the process proceeds to step S201 in FIG. 11 and if a game ball entry (winning) is detected (step S3004: YES). ) The main control CPU 600 checks the main control RAM 602 area in which the number of reserved balls for special symbols is stored in order to determine whether the number of reserved balls for special symbols is 4 or more, for example (step S3005).

  If the number of reserved balls for operation of the special symbol is less than 4 (step S3005: ≠ MAX), the number of reserved balls for operation of the special symbol is incremented by 1 (step S3006). After that, the main control CPU 600 confirms whether or not the random number acquisition flag RAF is set to OFF. If it is set to ON (step S3007: NO), the main control CPU 600 registers in the main control CPU 600 in the process of step S3002. The random value stored in (not shown) is acquired, and the random number value for the special symbol and the random number value for the variation pattern used when stopping the special symbol updated in step S14 of FIG. 7 or step S55 of FIG. And the random number values are stored in the main control RAM 602 area in which the number of suspended balls of special symbols is stored (step S3008). Thereafter, the main control CPU 600 sets the random number acquisition flag RAF to OFF (step S3009).

  On the other hand, if the random number acquisition flag RAF is set to OFF, the main control CPU 600 transmits a random number circuit 620 abnormality command to the effect control board 80. As a result, the effect control board 80 transmits an abnormal command to the decorative lamp board 120 and the liquid crystal control board 130. Based on this command, the decorative lamp board 120 drives and controls the decorative lamp such as an LED lamp to turn on or blink the decorative lamp, and the liquid crystal control board 130 has an abnormality in the liquid crystal display device 41. Display the effect. In this way, the occurrence of an abnormality is notified to the outside.

  Further, if the random number acquisition flag RAF is set to OFF, the main control CPU 600 stores the loss value (for example, 0000H) in the main control RAM 602 area in which the number of reserved balls for special symbols is stored (step S3010). ).

  And after finishing the said process, main control CPU600 performs the process of step S307-step S313.

  According to the present embodiment described above, similarly to the first embodiment, it is possible to detect at an early stage a problem that a certain winning state is continued due to an abnormality in the random number latch signal.

<Third Embodiment>
Next, a third embodiment of the present invention will be described with reference to FIG. In addition, about the same structure as 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  As shown in FIG. 15, the difference between the third embodiment and the first embodiment is that a random number circuit 6200 different from the random number circuit 620 shown in FIG. 5 is provided. That is, as shown in FIG. 15, the random number circuit 6200 mainly includes a random number generation circuit 620a, a special symbol random value register 620b, and a special symbol random number latch flag register 620c. The random number acquisition error flag register 6200a is connected to the output of the exclusive OR XOR, and the input of the exclusive OR XOR is connected to the outputs from the Q terminals of the flip-flops FF1 and FF2, respectively. Yes. Further, the switch signal of the special symbol start port 42 is connected to the D terminals of the flip-flops FF1 and FF2, and the predetermined clock signal CLK generated by the crystal oscillator 613 (see FIG. 4) is connected to the clock terminal. Has been.

  In this way, two flip-flops FF1 and FF2 are provided on the signal line of the switch signal of the special symbol start port 42 input to the special symbol random value register 620b, and the flip-flops FF1 and FF2 use the clock signal CLK. The exclusive OR XOR outputs “1” to the random number acquisition error flag register 6200a if a different value is output by taking in the switch signal of the special symbol start port 42, and if the same value is output, the exclusive OR The logical OR XOR outputs “0” to the random number acquisition error flag register 6200a.

  Thus, normally, the same value should be output, but if a different value is output, it can be considered that some abnormality has occurred in the signal line of the switch signal of the special symbol start port 42. Therefore, even with such a method, it is possible to detect a problem that a certain winning state is continued due to an abnormality in the random number latch signal at an early stage. Note that the value of the random number acquisition error flag register 6200a may be confirmed by the process of step S50 shown in FIG.

  In the first to third embodiments, the example in which the switch signal of the common special symbol start port 42 is used as the detection signal for winning the game ball (winning) and the random number latch signal is shown. It may be a separate signal. However, a common signal is preferable because the processing can be simplified.

1 Pachinko machine 42 Special design starting port 60 Main control board 620 Random number circuit 620a Random number generation circuit (random number update means)
620b Special symbol random value register (random number storage means)
6200a Random number acquisition error flag register (abnormality detection means)
RAF random number acquisition flag (abnormality detection means)

Claims (5)

Random number updating means for updating a random value at a predetermined timing;
Random number storage means for storing the random number value updated by the random number update means based on a detection signal for performing predetermined detection in relation to the game;
Random number acquisition means for acquiring a random value stored in the random number storage means;
Lottery means for performing a lottery to determine whether or not to generate a profit state advantageous to the player using the random number value acquired by the random number acquisition means;
A gaming machine comprising abnormality detecting means for detecting an abnormality in storing the random number value by the random number storing means due to an abnormality of the detection signal. It further has a symbol variation starting means for starting symbol variation based on an input signal by a predetermined input,
The abnormality detection means is characterized in that a new random number value is not stored in the random number storage means, and is detected as an abnormality when processing by the random number acquisition means is performed based on the input signal. The gaming machine according to claim 1.   The gaming machine according to claim 2, wherein the input signal and the detection signal are signals that are output based on a common predetermined starting condition. Further comprising a storage unit for storing a predetermined number of random values acquired by the random number acquisition unit as a storage unit;
The lottery means performs a lottery on whether or not to generate a profit state advantageous to the player using the random number value stored in the holding storage means,
If the abnormality detection unit acquires the random number value by the random number acquisition unit, the abnormality detection flag is changed from the first state to the second state, and before the processing by the holding storage unit is performed, or The gaming machine according to any one of claims 1 to 3, wherein when it is performed, the abnormality detection flag is detected as an abnormality when the flag is in the first state.   The random number storage unit does not newly store the random number value updated by the random number update unit based on the detection signal unless the random number acquisition unit acquires the random value. 5. The gaming machine according to any one of 4.

Images