JP2000061087A - Game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an improper game deed using an improper substrate from occurring. SOLUTION: When a start port switch is turned on, an interruption processing is started. For the interruption processing, a CPU 56 outputs a latch pulse to a random number determining register 77 first. Then, the random number determining register 77 latches the output of a 16 bit counter 76 at that time. The CPU 56 inputs a counter value which is latched by the random number determining register 77. Then, the CPU stores the input value in a random 1 storage region. The CPU 56 extracts the value which is stored in the random 1 storage region as a random number for a big winning judgement when recognizing a sure turning-on of the start port switch.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a game machine such as a pachinko game machine, and more particularly, when a game medium is shot in a game area by a player's operation and the game medium wins a prize area provided in the game area. A predetermined value is given to the player, a special game is performed by entering the game medium into the specific winning part, and the predetermined game value is given to the player based on the result of the special game being in a predetermined mode. The present invention relates to a gaming machine that can be given.

[0002]

2. Description of the Related Art As a game machine, a game medium such as a game ball is launched into a game area by a launching device, and when a game medium is won in a prize area such as a winning opening provided in the game area, a predetermined number of prize balls are provided. There are things that are paid out to the player.
Furthermore, a variable display unit whose display state can be changed is provided,
There is one configured to give a predetermined game value to the player when the display result of the variable display section becomes a predetermined specific display mode.

The variable display section has a plurality of display areas, and is normally constructed to display the display results of the plurality of variable displays at different times. In the variable display section, for example,
A plurality of pieces of identification information such as designs are variably displayed. It is usually called "big hit" that the display result of the variable display unit is a combination of predetermined specific display modes. Note that the game value is the right for the state of the variable winning ball device provided in the game area of the gaming machine to be in an advantageous state for a player who easily wins a hit ball, or to be in an advantageous state for a player. Is to be generated. When a “big hit” occurs, for example, a player is provided with a large amount of prize balls or the like.

In the game control of such a gaming machine, a random number is generated when a predetermined condition (for example, a start winning as a variable display start condition) is satisfied, and the random number value matches a predetermined value. It becomes a "big hit". Also, the circuit portion that performs game control for reasons such as noise countermeasures is reset and activated at predetermined time intervals. Since the generation of the random number value is performed in the circuit portion that performs the game control, it has no choice but to synchronize with the time interval of starting the circuit portion that performs the game control.

Then, when the time interval of activation is detected by some means, the random value generation timing is recognized. Furthermore, the timing at which a random number value that is a "big hit" occurs is recognized. Then, it becomes possible to frequently generate the “big hit” by aiming for the start winning at the timing when the random number value of the “big hit” is generated.

There is a case where an illegal board is attached to the game machine in order to detect the activation timing of the circuit portion which controls the game. Such an illegal board introduces a signal output to the outside from the circuit part that performs game control, detects the start timing of the circuit part that performs game control based on that signal, and generates a random number value that is a "big hit" The timing to start is detected. Then, the fraudulent board can send a start winning signal to the circuit portion that performs the game control at that timing to illegally generate a "big hit".

[0007]

Since the game machine has various parts such as a variable display device, a decoration lamp, and a sound generating device, it is necessary to eliminate signal lines from the circuit part for performing game control to those parts. I can't. Therefore, there is inevitably room for the illegal game action by mounting the illegal board as described above. Therefore, how to prevent an illegal game action using an illegal board has become an important issue in the gaming machine.

Therefore, it is an object of the present invention to provide a gaming machine which can effectively prevent an attack on a game by an illegal board.

[0009]

A gaming machine according to the present invention comprises:
Perform special games by winning game media to the specific prize section,
A game machine that allows a player to be given a predetermined game value based on the result of a special game being in a predetermined mode. The game machine is activated at predetermined intervals to control the progress of the game and the result of the special game. A game control means including a game control program for performing lottery processing and an external random number generation means for updating an output value at intervals shorter than a predetermined interval at which the game control program is activated, and a program different from the game control program In addition, the program executed prior to the game control program is configured to input the output value of the external random number generation means when the winning of the game medium to the specific winning part is detected and set the value to be used in the lottery process. To be done.

The program different from the game control program may be an interrupt processing program activated by a signal for detecting the winning of the game medium to the specific winning portion. Further, a program different from the game control program is a program different from the game control program, a process of detecting the winning of the game medium to the specific winning part, and an external random number generating means based on the winning of the game medium to the specific winning part. The configuration may include only the input processing of the output value of.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. First, the overall configuration of a pachinko gaming machine, which is an example of a gaming machine, will be described. FIG. 1 is a front view of a pachinko gaming machine 1 as viewed from the front. Here, a pachinko gaming machine is shown as an example of the gaming machine, but the present invention is not limited to a pachinko gaming machine, and may be, for example, a coin gaming machine or the like, and a special game by entering a game medium into a specific winning part. The present invention can be applied to all gaming machines that can give a predetermined game value to the player based on the result of the special game having a predetermined mode.

As shown in FIG. 1, the pachinko gaming machine 1 is
It has a glass door frame 2 formed in a frame shape. On the lower surface of the glass door frame 2, there is a hit ball supply tray 3. Below the hitting ball supply tray 3, a surplus ball receiving tray 4 for storing the prize balls overflowing from the hitting ball feeder tray 3 and a hitting ball operation handle (operation knob) 5 for firing the hit ball are provided. Behind the glass door frame 2,
The game board 6 is detachably attached. Further, a game area 7 is provided on the front surface of the game board 6.

Near the center of the game area 7, there is provided a variable display device 8 including an image display section 9 for displaying the game contents and a variable display 10 using a 7-segment LED. On the side of the variable display device 8, a pass gate 11 for guiding a hit ball is provided. The hit ball that has passed through the passage gate 11 is guided to the starting winning opening 14 via the ball outlet 13. In the passage between the passage gate 11 and the ball outlet 13, there is a gate switch 12 that detects a hit ball that has passed through the passage gate 11. In addition, the winning ball that entered the starting winning opening 14,
It is guided to the rear surface of the game board 6 and detected by the starting opening switch 17.

A variable winning ball device 15 for opening and closing is provided below the starting winning opening 14. The variable winning ball device 15 is opened by the solenoid 16. An opening / closing plate 20 that is opened by a solenoid 21 in a specific game state (big hit state) is provided below the variable winning ball device 15. The winning ball that enters one (V zone) of the winning balls guided from the opening / closing plate 20 to the back surface of the game board 6 is detected by the V count switch 22. Also,
The winning ball from the opening / closing plate 20 is detected by the count switch 23. At the bottom of the variable display device 8, there is provided a start winning prize memory display device 18 having four display portions for displaying the number of winning balls that have entered the starting winning opening 14. In this example, with the upper limit of four, each time there is a start prize, the start prize memory display device 18 increases the number of lit display portions by one. Then, each time the variable display of the image display unit 9 is started, the number of the lit display units is reduced by one.

The game board 6 is provided with a plurality of winning openings 19, 24. Around the left and right of the game area 7, decoration lamps 25 that blink during the game are provided, and at the bottom,
There is an outlet 26 that absorbs hit balls that did not win. In addition, two speakers 27 that emit a sound effect are provided on the upper left and right sides outside the game area 7. A game effect lamp / LED 28 is provided on the outer periphery of the game area 7. In this example, a prize ball lamp 51 that lights up when paying out a prize ball is provided near one of the speakers 27, and a ball-out lamp 52 that lights up when a supply ball runs out is near the other speaker 27. It is provided. Further, in FIG. 1, it is installed adjacent to the pachinko gaming machine 1,
Also shown is a card unit 50 that allows ball lending by inserting a prepaid card.

The hit ball launched from the hit ball launch device enters the game area 7 through the hit ball rail, and thereafter, the game area 7
Come down. When a hit ball is detected by the gate switch 12 through the passage gate 11, the displayed number on the variable display 10 is continuously changed. When the ball hits the start winning opening 14 and is detected by the start opening switch 17, a predetermined variable display image is displayed in the image display section 9 if the variable display can be started. If the variable display cannot be started, the start winning memory is incremented by 1. The start winning award memory will be described later in detail.

The variable display in the image display unit 9 ends when a certain time has elapsed or when a predetermined condition is satisfied. If the conditions are met, the big hit game state is entered. That is, the opening / closing plate 20 is kept for a certain time (for example, 2
9.5 seconds or until a predetermined number (for example, 1
Open until 0 hits are won. Then, when the hit ball enters the specific winning area and is detected by the V count switch 22 while the opening / closing plate 20 is opened, the continuation right is generated and the opening / closing plate 2 is opened.
The 0 is released again. The continuation right is allowed to be generated a predetermined number of times (for example, 15 rounds).

When the combination of the images in the variable display portion 9 at the time of stop is the combination of the big hit symbols accompanied by the probability variation, the probability of the big hit next increases. That is, the high probability state is more advantageous for the player. Further, when the stop symbol on the variable display 10 is a predetermined symbol (hit 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 on the variable display 10 becomes a winning symbol is increased, and the opening time and the number of times of opening the variable winning ball device 15 are increased.

Next, the structure of the back surface of the pachinko gaming machine 1 will be described with reference to FIG. On the back surface of the variable display device 8, as shown in FIG. 2, a prize ball 38 is provided on the upper part of the mechanism plate 36, and the prize balls are provided from above the pachinko game machine 1 in a state where it is installed on the game machine installation island. Freebie ball tank 3
8 are supplied. The prize balls in the prize ball tank 38 reach the ball payout device through the guide gutter 39.

On the mechanism plate 36, a variable display control unit 29 for controlling the variable display section 9 via the relay board 30, a game control board covered with a board case 32 and having a game control microcomputer and the like (main board). ) 31, a relay board 33 for relaying signals between the variable display control unit 29 and the main board 31, and a prize ball board 3 on which a payout control microcomputer for controlling payout of prize balls and the like are mounted.
7 is installed. Further, on the mechanism plate 36, a hitting ball launching device 34 that launches a hitting ball to the game area 7 by utilizing the rotational force of the motor, the speaker 27 and the game effect lamp L.
A lamp control board 35 for transmitting a signal to the EDs 28a, 28b, 28c is installed.

FIG. 3 is a rear view of the gaming board of the pachinko gaming machine 1 as viewed from the back. On the back side of the game board 6, FIG.
As shown in FIG. 1, the winning ball aggregate cover 4 for guiding the winning balls won in the respective winning openings and the winning ball device along a predetermined winning path.
0 is provided. Among the winning balls guided to the winning ball collecting cover 40, those winning through the opening / closing plate 20 are controlled by the ball payout device 97 to pay out a relatively large number of prize balls (for example, 15). Those winning through the starting winning opening 14 are controlled by a ball payout device (not shown in FIG. 3) so as to pay out a relatively small number of prize balls (for example, 6). Then, for those winning through the other winning opening 24 and the winning ball device, the ball payout device is controlled so as to pay out a relatively medium number of prize balls (for example, 10 pieces). Note that the relay board 33 is illustrated in FIG.

Signals from the winning ball detection switch 99, the starting opening switch 17 and the V count switch 22 are sent to the main board 31 to perform the prize ball payout control. When the ON signal of the winning ball detection switch 99 is sent to the main board 31, a prize ball number signal is sent from the main board 31 to the prize ball board 37. The fact that there is a winning is detected by the winning ball detection switch 99. In that case, the main ball 31 moves from the winning ball substrate 3
A prize ball number signal is given to 7. For example, when the winning ball detection switch 99 is turned on in response to the start switch 17 being turned on, "6" is output to the prize ball number signal, and the winning ball detection is performed in response to the turning on of the count switch 23 or the V count switch 22. When the switch 99 is turned on, "15" is output to the prize ball number signal. When the winning ball detection switch 99 is turned on when those switches are not turned on, "10" is output to the prize ball number signal.

FIG. 4 is a block diagram showing an example of the circuit configuration of the main board (main board) 31. Note that FIG. 2 also shows the prize ball substrate 37, the lamp control substrate 35, the sound control substrate 70, the display control substrate 80, the launch control substrate 91, and the like. On the main board 31, a basic circuit 53 for controlling the pachinko gaming machine 1 in accordance with a game control program, and a switch circuit for giving signals from the gate switch 12, the starting opening switch 17, the V count switch 22 and the count switch 23 to the basic circuit 53. 58, a solenoid circuit 59 that drives the solenoid 16 that opens and closes the variable winning ball device 15 and the solenoid 21 that opens and closes the opening and closing plate 20 according to a command from the basic circuit 53, and turns on and off the start memory indicator 18. According to the data supplied from the lamp / LED circuit 60 that drives the variable display 10 by the 7-segment LED and blinks the decoration lamp 25, and the data supplied from the basic circuit 53, the jackpot information indicating the occurrence of the jackpot and the image of the image display unit 9 Effective starting information indicating the number of starting winning balls used to start display The probability variation information indicating that the probability change occurs and an information output circuit 64 for outputting to the host computer such as a hall management computer.

The basic circuit 53 includes a ROM 54 for storing a game control program and the like, a RAM 55 used as a work memory, a CPU 56 for performing a control operation according to the control program, and an I / O port section 57. The ROM 54 and the RAM 55 may be built in the CPU 56 in some cases.

The main circuit board 31 has a basic circuit 5 when the power is turned on.
3, an initial reset circuit 65 for resetting 3, and a regular reset circuit 66 for periodically (for example, every 2 ms) applying a reset pulse to the basic circuit 53 to re-execute the game control program from the beginning. Circuit 53
An address decode circuit 67 is provided for decoding an address signal supplied from the I / O port unit 57 and outputting a signal for selecting any one of the I / O ports 57.

Further, on the main board 31, oscillation circuits 75 and 16 which constitute external random number generating means for generating random numbers at high speed.
A bit counter 76 and a random number confirmation register 77 are also mounted.

Embodiment 1. FIG. 5 shows an oscillator circuit 75, 1.
The 6-bit counter 76 and the random number confirmation register 77 are
3 is a block diagram showing together with a CPU 56. FIG. In this embodiment, the oscillator circuit 75 generates a clock signal at 20 MHz. The clock signal from the oscillation circuit 75 is 16
It is input to the bit counter 76. The 16-bit counter 76 includes, for example, four 4-bit counters (7 in this case).
4HC161) 76a to 76d are connected in series. That is, the clock signal from the oscillator circuit 75 is input to the clock input terminal of the 4-bit counter 76a and
The carry signal of the bit counter 76a is input to the clock input terminal of the 4-bit counter 76b. Also, the carry signal of the 4-bit counter 76b is the 4-bit counter 76b.
The 4-bit counter 7 is input to the clock input terminal of c.
The carry signal of 6c is input to the clock input terminal of the 4-bit counter 76d. Therefore, the outputs of the four 4-bit counters 76a to 76d are 16-bit counter outputs.

In this example, a D flip-flop (74HC574) having two eight circuits is used as the latch circuits 77a and 77b forming the random number determination register 77. The latch circuits 77a and 77b receive the counter output of the 16-bit counter 76 and latch the counter output when a latch signal is input. In the example shown in FIG. 5, the latch signal is output from the CPU 56. Then, the latched 16-bit value is output to the CPU 56 according to the read signal (RD). Latch circuits 77a, 7
The output of 7b is input to the CPU 56 via the bus of the CPU 56. The output of the starting port switch 17 is connected to the interrupt input terminal of the CPU 56, and when the output of the starting port switch 17 is turned on, the interrupt process is started. The output of the starting port switch 17 is also output from the CP through the switch circuit 58 and the I / O port 57 as shown in FIG.
It is input to U56.

Since the oscillation frequency of the oscillator circuit 75 is 20 MHz, one clock is generated in 0.05 μs. 16
The bit counter 76 outputs a value in the range of 0-65535. Therefore, the random number period is 0.05 μs × 65535.
= 3.2768 ms.

Next, the operation will be described. FIG. 6 is a flowchart showing the operation of the basic circuit 53 on the main board 31. As described above, this process is performed by, for example, 2 m by the reset pulse generated by the regular reset circuit 66.
It is activated every s. When the basic circuit 53 is activated, the basic circuit 53 first performs a stack set process for setting the designated address of the stack pointer (step S1). Next, initialization processing is performed (step S2).
In the initialization processing, the basic circuit 53 determines whether or not the RAM 55 contains an error, and if the error is included, the basic circuit 53 performs processing such as initialization of the RAM 55. Then, the command code sent to the display control board 80 is R
After performing the process of setting the predetermined area of the AM 55 (step S3), the process of outputting the command code as the display control data is performed (step S4).

Next, a process for transmitting a predetermined command for voice generation and LED lighting control is performed to the lamp control board 35 and the voice control board 70, and a big hit is made to the hall management computer via the information output circuit 64. A process for transmitting data such as information, starting information, and probability variation information is performed (data output process: step S5). Further, various abnormality diagnosis processing is performed by the self-diagnosis function provided inside the pachinko gaming machine 1, and an alarm is issued if necessary according to the result (error processing: step S6).

Next, processing for updating each counter indicating each judgment random number used for game control is performed (step S).
7). In step S7, the basic circuit 53 counts up (adds 1) the big hit symbol determination random number (random 3) as the determination random number. FIG. 7 is an explanatory diagram showing each random number. Each random number is used as follows. (1) Random 1: Determine whether or not to generate a big hit (for big hit judgment) (2) Random 2-1 to 2-3: For deviating symbols in the left and right middle (3) Random 3: Of big hit design Determine the combination (for jackpot design determination = for specific symbol determination) (4) Random 4: Determine whether to reach when out of reach (for reach determination) (5) Random 5: Determine reach type (reach action determination) for)

Note that random numbers other than the random numbers (1) to (5) described above are also used to enhance the game effect. In addition, in order to enhance the game effect, the variable display unit 9 also displays an image other than each symbol, such as a background or a character that makes a predetermined movement. In step S7, the basic circuit 53
Performs the count-up (1 addition) of the big hit symbol determination random number of (3). The jackpot determination random number (1) is also a determination random number, but in the main process, the jackpot determination random number is not updated.

Next, the basic circuit 53 performs a special symbol process process (step S8). In the special symbol process control, the corresponding process is selected and executed according to the special symbol process flag for controlling the pachinko gaming machine 1 in a predetermined order according to the gaming state. Then, the value of the special symbol process flag is updated during each process according to the game state. Also, a normal symbol process process is performed (step S9). Ordinary pattern process, 7 segment LE
The corresponding process is selected and executed according to the normal symbol process flag for controlling the variable display 10 by D in a predetermined order. Then, the value of the normal symbol process flag is updated during each process according to the game state. Further, the basic circuit 53 inputs the states of the gate switch 12, the start opening switch 17, and the count switch 23 via the switch circuit 58, and determines whether or not there is a winning for each winning opening or winning device (step S10). .

The basic circuit 53 further performs a process of updating the display random number (step S11). That is,
(2) Random symbol determination random numbers, (4) reach determination random numbers, and (5) reach operation random numbers are counted up (1 addition). However, the random 2-2 is
When the carry of the random 2-1 occurs, that is, when the value of the random 2-1 becomes "15" and is returned to "0", it is counted up. Also, random 2-3
Is incremented when a carry of random 2-2 occurs, that is, when the value of random 2-2 becomes "15" and is returned to "0".

The basic circuit 53 also performs signal processing with the prize ball substrate 37 (step S12). That is, when the predetermined condition is satisfied, the prize ball number signal is output to the prize ball substrate 37. CP for prize ball control mounted on the prize ball substrate 37
U drives the ball payout device 97 according to the prize ball number signal. After that, the basic circuit 53 changes the periodical reset circuit 6 next.
Until a reset pulse is given from step S1, step S1
The display random number updating process of 3 is repeated.

FIG. 8 is a flow chart showing an interrupt process of the CPU 56 which is activated by an interrupt when the starting opening switch 17 is turned on. When the starting opening switch 17 is turned on, the interrupt process is started. In interrupt processing, CPU5
6, first outputs a latch pulse to the random number determination register 77 (step S21). Then, the random number determination register 77 latches the output of the 16-bit counter 76 at that time. The CPU 56 inputs the latched counter value in the random number determination register 77 (step S22).
Then, the CPU 56 saves the input value in the random 1 storage area (step S23). The random 1 storage area is a predetermined area in the RAM 55.

FIG. 9 is a timing chart showing an example of the relationship between the normal processing (main processing) of the CPU 56 activated by the periodic reset signal and the interrupt processing based on the turning on of the starting opening switch 17. As shown in FIG.
The normal processing of 56 is restarted every 2 ms, but the turning on of the starting opening switch 17 is based on the winning of the hit ball in the game by the player, and is therefore completely asynchronous with the 2 ms cycle. In addition, 20M that drives the 16-bit counter 76 that generates a counter value that is originally random 1
The Hz clock signal is also completely asynchronous with the 2 ms period. Therefore, when the starting opening switch 17 is turned on, 1
If the count value of the 6-bit counter 76 is extracted as random 1 (random number for jackpot determination), a random 1 value that is not synchronized with the 2 ms period can be obtained.

Then, even if the signal output from the main substrate 31 is observed outside the main substrate 31, the cycle of Random 1 cannot be known. In other words, it is impossible to observe the signal output from the main board 31 and give a signal to the main board 31 that causes an illegal big hit.

Next, a method of determining the symbols variably displayed on the image display portion 9 based on the winning (starting winning) to the starting winning opening 14 will be described with reference to the flowcharts of FIGS. FIG. 10 shows a process for determining that the hit ball has won the starting winning opening 14, FIG. 11 shows a process for determining a symbol, and FIG. 12 is a flowchart showing a big hit determination process. The process shown in FIGS. 11 and 12 is executed in the special symbol process process (step S8) in the main process shown in FIG.

When a ball hits the starting winning opening 14 provided on the game board 6, the starting opening switch 17 is turned on.
Chattering (fluttering of ON waveform and OFF waveform) occurs when the starting opening switch 17 is turned on and off. In addition, noise may occur on the cable from the starting port switch 17 to the main board 31. Therefore, starting port switch 1
Immediately detecting whether or not 7 is turned on may cause a detection error. Therefore, in this embodiment, as a countermeasure against chattering and a noise, the CPU 56
When it is detected that the start port switch 17 has been turned on continuously, the start port switch 17 is recognized as turned on. The process shown in FIG. 10 is 2
Since it is executed once every ms, at least 2 ms after all
When the starting port switch 17 continuously outputs an ON signal,
The CPU 56 recognizes that the starting opening switch 17 is turned on. For gaming machines with long chattering periods,
It may be recognized that the starting opening switch 17 is turned on when it is detected that it is turned on three times or more in succession.

Further, while the processing shown in FIG. 10 takes measures against chattering and noise, the interruption processing shown in FIG. 8 does not take measures against chattering and noise. Therefore, for example, due to the flapping of the signal when the starting port switch 17 is turned on, the interrupt process may be activated many times when the starting port switch 17 is turned on. However, the value shown in the random 1 storage area is used when it is determined by the process shown in FIG. 10 that the starting opening switch 17 is surely turned on (step S4).
7) The random number value fetched by the interrupt process immediately before the CPU 56 detects the start winning is stored in the random number value storage area.

In the switch processing of step S10,
As shown in FIG. 10, the CPU 56 of the basic circuit 53 detects that the starting opening switch 17 is turned on via the switch circuit 58 and the I / O port 57 (step S).
41), it is confirmed whether or not the switch-on flag is set (step S42). The switch-on flag is a flag that is set when the switch is detected for the first time. Therefore,
When it is detected that the starting opening switch 17 is turned on and the switch-on flag is not set, the CPU 56 sets the switch-on flag (step S43).

When it is detected that the starting port switch 17 is turned on and the switch-on flag is set, the CPU 56
Resets the switch-on flag (step S44), and confirms whether or not the number of memory for winning start prize reaches the upper limit value of memory for start prize (step S45). If the number of memory for starting winning prize has not reached the upper limit value of memory for starting winning, the number of memory for starting winning prize is increased by 1 (step S46). In this embodiment, the starting memory upper limit value = 4.

Then, the number n of memory for each winning award winning prize (n = 1,
2, 3, ..., The starting memory upper limit value) is stored in the random value storage area provided corresponding to the random number 1 storage area (step S47). In addition, when the number of memory for winning a prize for winning has reached the upper limit value for starting memory,
The processes of steps S46 to S47 are not performed. In addition, in the switch processing of step S10, detection processing of switches other than the starting port switch 17 is also performed.

The basic circuit 53 performs the processing shown in the flow chart of FIG. 11 when the variable display of the image display unit 9 can be started. First, the value of the number of stored winning awards is confirmed (step S50). If the number of memory for winning a prize is not 0,
While reading the value stored in the random number value storage area corresponding to the number of memory of winning a prize for starting = 1 (step S51),
The value of the number of stored winning awards is decreased by 1, and the value of each random value storage area is shifted (step S52). That is,
The value stored in the random number value storage area corresponding to the memory number of starting winning prizes = n (n = 2, 3, ...) Is stored in the storage area of the random number value corresponding to the memory number of starting winning prizes = n−1. .

Then, the basic circuit 53 operates in step S51.
The hit / disappearance is determined based on the value read in step 1, that is, the value of the extracted big hit determination random number (step S53). In this embodiment, the big hit determination random number takes a value in the range of 0 to 65535. Then, as shown in FIG. 12, when the probability is low (when a probability variation flag described later is not set), for example, when the value is one of the 188 preset values, the “big hit” is given. Is determined, and if the value is any other value, it is determined as “out”. At the time of high probability, for example, if the value is one of the predetermined 9440 values, it is determined as "big hit", and if it is any other value, it is determined as "outlier".

The big hit determination random number takes a value in the range of 0 to 65535, and 188 of them are the winning values (“big hit”).
In this example, the jackpot probability at low probability is 188/65536 = 1 / 348.60.
Is. Also, the jackpot probability at high probability is 940/65
536 = 1 / 69.19.

When it is determined that the big hit, the basic circuit 5
3 determines the stop symbol based on the value of the special symbol determination random number (random 3). Here, if the limiter is not operating, the stop symbol is determined from the table including all symbols (steps S54, S55). When the limiter is operating, a stop symbol is determined from a table that does not include a special symbol (probability variation symbol) in which probability variation is performed (steps S54 and S56). The limiter is for limiting the continuous occurrence of a big hit due to the probability variation pattern, that is, the continuous high probability state. For example, when the high probability state continues four times in a row, the limiter is activated. Therefore, in the limiter operating state, the stop symbol is determined from the table that does not include the special symbol in which the probability variation is performed.

Further, the basic circuit sets the probability variation flag when the determined symbol is the probability variation symbol, and resets the probability variation flag when it is not (step S7).
1, S72, S73). Then, the reach type is determined according to the value of Random 5 (step S74), whether or not to be a big hit, the symbol in the case of a big hit, and the reach type are set in a predetermined storage area (step S75). In addition,
The storage area is provided in the RAM 55 of the basic circuit 53.

If it is determined that there is a deviation in step S53, the basic circuit 53 determines whether or not to reach (step S59). For example, when the value of the reach determination random number shown in FIG. 7 is any of “0” to “104”, it is determined to be reach. When it is decided to reach, the basic circuit determines the stop symbol. In this embodiment, the left and right symbols are determined according to the value of random 2-1 (step S60). Further, the middle symbol is determined according to the value of random 2-2 (step S61). Here, when the determined middle symbol matches the left and right symbols, the symbol corresponding to the value obtained by adding 1 to the value of the random number corresponding to the middle symbol is determined as the medium symbol, and does not match the big hit symbol. To do.

Further, the basic circuit determines the reach type according to the value of Random 5 (step S62). Then, "reach", a reach symbol, and a reach type are set in a predetermined storage area (step S63). If the lottery result in step S59 is out of alignment, it is set in the predetermined storage area (in step S64).

As described above, in this embodiment, the value of the external random number that circulates between 0 and 65535 without synchronizing with the regular reset interval (2 ms) given to the CPU 56 in the basic circuit 53 is periodically reset. It is latched by the start winning that occurs asynchronously with the interval, and the latched value is used as the extracted jackpot determination random number.

Then, even when observing various signals output from the main board 31 in synchronism with the start timing of 2 ms, the extraction timing of the big hit determination random number cannot be estimated. Therefore, it becomes impossible to give a signal for illegally generating a big hit to the main board 31 from the outside of the main board 31.

In this embodiment, the count value of the 16-bit counter 76 is fetched in the interrupt process,
Whether or not the start winning is won is determined by the switch process (step S10) in the main process, but in the interrupt process,
It is also possible to execute the determination up to whether or not the start winning is certainly done. In that case, in the interrupt process, a measure against chattering and a measure against noise are taken when determining whether or not the start winning is achieved. For example, if the ON state is confirmed several times in a row, it is determined that there is a start winning. With such a configuration, the CPU 56 performs the switching process including the chattering countermeasure, the noise countermeasure, and the high-speed external random number latching process when the starting opening switch 17 is turned on while executing the main process. It is executed with priority. With such a configuration, the difference between the start winning detection time and the random number acquisition timing is further shortened.

Embodiment 2. In the first embodiment, the signal from the starting port switch 17 is connected to the interrupt terminal of the CPU 56 together with the I / O port 57, and the external random number is latched by the interrupt process of the CPU 56. Alternatively, the external random number may be latched. FIG.
Is an oscillator circuit 75, a 16-bit counter 76, and a random number determination register 77 for performing such processing.
It is a block diagram shown with U56. Also in this embodiment, the external random number is latched based on the turning-on of the starting port switch 17, but unlike the first embodiment, the CPU 5
6 recognizes that the starting port switch 17 for latching the external random number is turned on by using the state of the starting port switch 17 input through the I / O port 57.

FIG. 14 is a flow chart showing the main processing of the basic circuit 53 in this embodiment. In this case, in the main processing that is restarted every 2 ms, the starting port switch processing (steps S15a, S15b, S15c) is executed at a plurality of locations (three locations in this example).

FIG. 15 is a flowchart showing the starting opening switch process (steps S15a, S15b, S15c). The CPU 56 has a switch circuit 58 and an I / O.
When it is detected that the starting port switch 17 is turned on through the port 57 (step S81), it is confirmed whether or not the switch-on counter is 10 (step S8).
2). The switch-on counter is a counter for counting the number of times the starting port switch 17 is continuously turned on. Therefore, when the ON of the starting opening switch 17 is detected and the switch-on counter has not reached 10, the CPU 56
The switch-on counter is incremented by 1 (step S83).

When the switch-on counter is 10, the switch-on counter is cleared (step S84) and a latch pulse is output to the random number confirmation register 77 (step S85). And CPU
56 inputs the counter value latched in the random number determination register 77 (step S86), and stores the input value in the random 1 storage area (step S87). Further, the starting port ON flag is set (step S88).

As described above, when it is detected that the starting port switch 17 is turned on 10 times in succession, the CPU 56 determines that the starting port switch 17 is turned on without fail and latches the count value of the 16-bit counter 76. At the same time, the start port ON flag is set. In this embodiment, since the starting opening switch process (steps S15a, S15b, S15c) is executed three times during one main process, (10 ÷ 3) × 2 ms, that is, 6 ms or more It is detected that the mouth switch 17 is definitely turned on.

In this embodiment, the number of times of continuation is set to 10 times, but the number of times of continuation is applied to the starting opening switch 1 of the game machine.
7 is set according to the chattering characteristic. In addition, in this embodiment, the starting port switch process is executed three times during one main process, but the number of starting port switch processes is not limited to three.

FIG. 16 is a flowchart showing the extraction processing of the big hit determination random number according to the starting winning of the hit ball, which is executed in the switch processing of step S10 in this embodiment. The CPU 56 of the basic circuit 53 is shown in FIG.
As shown in, when it is detected that the starting port switch on flag is set (step S41a), the starting port switch on flag is reset (step S4a).
8) It is confirmed whether or not the number of memory for winning a prize for winning has reached the upper limit value for the memory for starting a memory (step S45). If the number of memory for starting winning prize has not reached the upper limit value of memory for starting winning, the number of memory for starting winning prize is increased by 1 (step S46). In this embodiment, the starting memory upper limit value = 4.

Then, the number n of memory for each winning award winning prize (n = 1,
2, 3, ..., Start memory upper limit value), the value stored in the random 1 storage area is stored in the random value storage area provided (step S47). In addition,
When the number of stored winning prizes for winning has reached the upper limit of starting memory, the processes of steps S46 to S47 are not performed. Also,
In the switch process of step S10, the starting opening switch 17
Other switch detection processing is also performed.

After that, when the CPU 56 is ready to start the variable display of the image display unit 9, the CPU 56 performs the process shown in the flowchart of FIG. 11 in the special symbol process process of step S8.

As described above, in this embodiment, since the plurality of starting opening switch processings (steps S15a, S15b, S15c) are performed during the main processing, the starting opening switch 17 is surely turned on. When it is determined, the jackpot determination random number value generated by the external random number generation means that counts up at high speed is extracted.

The turning on of the starting port switch 17 is completely asynchronous with the 2 ms period of the main processing, and in this embodiment, random 1 (random number for jackpot determination) is extracted based on turning on of the starting port switch 17. Therefore, random 1 which is not synchronized with the 2 ms period can be obtained.

In this embodiment, the count value of the 16-bit counter 76 is latched when it is determined that the starting opening switch 17 is surely turned on.
The random number value at the time when 56 detects the start winning is stored in the random value storage area. That is, there is no difference between the start winning detection time and the random number acquisition timing. However, when a certain amount of deviation is allowed between the start winning detection time and the random number acquisition timing, as in the case of the first embodiment,
The count value of the 16-bit counter 76 may be immediately input and stored in the random 1 storage area when the starting opening switch 17 indicates the ON state. In such a case, a plurality of starting port switch processes (steps S15a, S15b, S1) during the main process are performed.
In 5c) no switch-on counter is used,
When it is detected that the starting opening switch 17 is turned on, the count value of the 16-bit counter 76 is input through the random number confirmation register 77 and stored in the random 1 storage area.

Then, instead of the processing shown in FIG.
The processing shown in FIG. 10 is executed. With such a configuration, the count value of the 16-bit counter 76 is changed at any time when the start opening switch 17 is in the ON state in the plurality of start opening switch processes (steps S15a, S15b, S15c) during the main process. Since it is input, the same processing as in the case of the first embodiment is performed without using the interrupt processing as in the first embodiment. Therefore, with this configuration, the saved value of the random 1 storage area can be updated at any time without depending on the interrupt process, so that the interrupt process is already used as another process, or the interrupt process is interrupted for some reason. It is useful when it cannot be used.

Third Embodiment FIG. 17 is a block diagram showing the oscillator circuit 75, the 16-bit counter 76, and the random number determination register 77 of the third embodiment together with the CPU 56. As shown in FIG. 17, in this embodiment,
The output of the starting port switch 17 is also connected to the latch input of the random number finalizing register 77, and when the starting port switch 17 is turned on, the count value of the 16-bit counter 76 is latched in the random number finalizing register 77.

In this embodiment, the main process is as shown in FIG.
It is performed as shown in. Then, step S10
18 is executed in the switch process of FIG. That is, the CPU of the basic circuit 53
When the switch 56 detects that the starting opening switch 17 is turned on via the switch circuit 58 and the I / O port 57 (step S41), it checks whether or not the switch-on flag is set (step S42). When it is detected that the starting opening switch 17 is turned on and the switch-on flag is not set, the CPU 56 sets the switch-on flag (step S43).

When it is detected that the starting port switch 17 is turned on and the switch-on flag is set, the CPU 56
Resets the switch-on flag (step S44), and confirms whether or not the number of memory for winning start prize reaches the upper limit value of memory for start prize (step S45). If the number of memory for starting winning prize has not reached the upper limit value of memory for starting winning, the number of memory for starting winning prize is increased by 1 (step S46). In this embodiment, the starting memory upper limit value = 4.

Then, the CPU 56 inputs the counter value latched in the random number determination register 77 (step S22). Further, the CPU 56 stores the input value in a random number value storage area provided corresponding to each of the starting prize winning memory numbers n (n = 1, 2, 3, ..., Starting memory upper limit value) ( Step S47a). It should be noted that if the number of memory for winning a prize for winning has reached the upper limit value for the memory for starting, a step S4 is performed.
The processing of 6 to S47a is not performed. Also, step S10
In the switch processing of (1), detection processing of switches other than the starting port switch 17 is also performed. After that, the CPU 56 performs the process shown in the flowchart of FIG. 11 in the special symbol process process of step S8 when the variable display of the image display unit 9 can be started.

As described above, in this embodiment, the output of the starting port switch 17 is input to the I / O port 57 and the random number confirmation register 77 as a latch signal. Therefore, the random number determination register 77 is based on the output of the starting port switch 17 and the 16-bit counter 7 at any time.
The count value of 6 is latched. And the CPU 56
When it is determined that the output of the starting port switch 17 input via the I / O port 57 is surely turned on, the counter inputs the counter value latched in the random number confirmation register 77. Therefore, there is no difference between the start winning detection time and the random number acquisition timing. Further, since the latch in the random number determination register 77 is performed by hardware, the load on the basic circuit 53 for extracting the big hit determination random number is reduced.

Also in this embodiment, the regular reset interval (2 ms) given to the CPU 56 in the basic circuit 53.
The value of the external random number that circulates between 0 and 65535 without being synchronized with is latched with the start winning that occurs asynchronously with the regular reset interval, and the latched value is used as the extracted jackpot determination random number. . Therefore, even when observing various signals output from the main board 31 in synchronization with the startup timing of 2 ms, the extraction timing of the jackpot determination random number cannot be estimated. Therefore, it becomes impossible to give a signal for illegally generating a big hit to the main board 31 from the outside of the main board 31.

The gaming machine of each of the above-mentioned embodiments, that is, the pachinko gaming machine shown in the front view of FIG. 1, has a special symbol stop symbol that is variably displayed on the image display section 9 based on the winning prize. Although it was a first-class pachinko gaming machine in which a predetermined game value could be given to a player when a predetermined combination of symbols was obtained, it was predetermined that there was a prize in a predetermined area for an electric auditor to be released based on a start prize. The second kind of pachinko machine that allows the game value of the game to be given to the player, and the winning of the predetermined electric accessory that is released when the stop symbols of the symbols that are variably displayed based on the start winning are a combination of the certain symbols The present invention can be applied even to a type 3 pachinko gaming machine in which a predetermined right is generated or continues when there is.

[0076]

As described above, according to the present invention, the game control means including the game control program for starting the game machine at a predetermined interval to control the progress of the game and to perform the lottery process regarding the result of the special game. And a random number generating means for updating the output value at a time shorter than a predetermined interval at which the game control program is activated, and the program executed in preference to the game control program, wins the game medium to the specific winning portion. When it is detected, the output value of the external random number generating means is input and the value used in the lottery process is configured.
Even when observing various signals output from the game control means in synchronization with a predetermined start timing, it becomes impossible to estimate the extraction timing of the big hit determination random number, and the big hit is illegally generated from outside the game control means. Since it is not possible to give a signal for making it happen, there is an effect that an illegal game action can be effectively prevented. Also, since the program executed prior to the game control program detects the winning of the game medium to the specific winning part and inputs the output value of the external random number generating means, the winning of the specific winning part and the external random number are performed. The deviation of the acquisition timing is small.

When the program different from the game control program is an interrupt processing program activated by a signal for detecting the winning of the game medium to the specific winning portion, the output value of the external random number generating means can be easily input. effective. Also,
The program different from the game control program includes only the process of detecting the winning of the game medium to the specific winning part, and the process of inputting the output value of the external random number generating means based on the winning of the game medium to the specific winning part. When configured, only the necessary processing is included in the program different from the game control program, so that the program can be simply configured.

[Brief description of drawings]

FIG. 1 is a front view of a pachinko gaming machine as viewed from the front.

FIG. 2 is a block diagram showing an example of a circuit configuration on a main board and a peripheral board.

FIG. 3 is a block diagram showing a main part of a peripheral circuit of a CPU.

FIG. 4 is a flowchart showing an operation of a basic circuit on the main board.

FIG. 5 is a block diagram showing a configuration of an external random number generation means in the first exemplary embodiment.

FIG. 6 is a flowchart showing main processing of a basic circuit.

FIG. 7 is an explanatory diagram showing each random number.

FIG. 8 is a flowchart showing an interrupt process.

FIG. 9 is a timing chart showing an example of a relationship between main processing and interrupt processing.

FIG. 10 is a flowchart showing a process of determining that a hit ball has won a starting winning opening according to the first embodiment.

FIG. 11 is a flowchart showing a process of determining a symbol.

FIG. 12 is a flowchart showing a big hit determination process.

FIG. 13 is a block diagram showing a configuration of an external random number generation means in the second exemplary embodiment.

FIG. 14 is a flowchart showing main processing according to the second embodiment.

FIG. 15 is a flowchart showing a starting opening switch check process.

FIG. 16 is a flowchart showing a process of determining that a hit ball has won a starting winning opening according to the second embodiment.

FIG. 17 is a block diagram showing a configuration of external random number generation means in the third exemplary embodiment.

FIG. 18 is a flowchart showing a process of determining that a hit ball has won a starting winning opening according to the third embodiment.

[Explanation of symbols]

8 variable display 31 Main board 53 Basic circuit 56 CPU 75 oscillator circuit 76 16-bit counter 77 Random number confirmation register

Claims (3)

[Claims] 1. A gaming machine in which a special game is played by winning a game medium to a specific winning part, and a predetermined game value can be given to a player based on the result of the special game being in a predetermined mode. There is a game control means including a game control program that is activated at a predetermined interval, controls the progress of the game, and performs a lottery process regarding the result of the special game, and updates the output value at an interval shorter than the predetermined interval. The external random number generation means for detecting the winning of the game medium to the specific winning portion by a program different from the game control program and executed prior to the game control program. A game machine characterized in that the output value of the means is input and used as a value used in the lottery process. 2. The game machine according to claim 1, wherein the program different from the game control program is an interrupt processing program activated by a signal for detecting a winning of a game medium to a specific winning portion. 3. A program different from the game control program is a process of detecting a winning of a game medium to a specific winning part,
3. The gaming machine according to claim 1 or 2, which includes only input processing of an output value of an external random number generation means based on winning of a game medium to a specific winning portion that detects a state of a switch.