JPH1170258A - Game machine control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a game machine control device which can prevent an illegal act using a 'hanging board' by making it impossible to find the timing of the occurrence of a jackpot. SOLUTION: When a ball passes through a pattern operating gate (S41), the value of a random number counter and the value of a counter IC which is increased with the fall of an M1 signal are read and added together (S42-S44), and if the value obtained through the addition is 347 or more (S45), 347 is subtracted (S46) from the value obtained through the addition. If the value obtained through the process of S44 or S46 coincides with one of winning values (S47), it is regarded as indicating the occurrence of a jackpot, and a jackpot process is executed (S36). Thus, because the jackpot is judged by adding to the value of the random number counter the value of the counter IC which a 'hanging board' cannot find, the hanging board cannot find the timing of the occurrence of the jackpot. Therefore, an illegal act using the hanging board can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a ball game machine represented by a pachinko game machine,
The present invention relates to a control device for a gaming machine capable of preventing an illegal act by a "hanging board" or the like.

[0002]

2. Description of the Related Art A pachinko gaming machine of this type is provided with a display device capable of displaying a plurality of types of symbols in a variable manner, and starts displaying the variation when a ball hit into a game area passes through a symbol operation gate. It is configured to be. When the variable display is stopped in accordance with a predetermined combination of symbols, a big hit occurs, a predetermined game value is given to the player, and a large number of game balls can be paid out.

[0003] The occurrence of such a big hit is determined at the timing when the hit ball passes through the symbol operation gate. That is, in a certain range periodically (eg, 1
A counter that is updated every 2 ms in the range of 0 to 346 (in the range of 0 to 346). When the hit ball passes the symbol actuation gate, the value of the counter is read, and the read value of the counter is, for example, “ If it matches a predetermined value such as "7", a big hit is generated. When a big hit occurs, a big hit command is transmitted to the display board of the display device via the cable connected to the connector of the control board. The display device controls the variable display based on the received jackpot command, and causes the jackpot display to stop at a predetermined combination of symbols to appear.

[0004]

[Problems to be solved by the invention] However, recently,
There have been reports of fraudulent activities using fraudulent substrates called "hanging substrates". This fraudulent act involves hanging an improper board (attaching an improper "hanging board") between the control board and the display board of the display device, thereby causing an unreasonable jackpot. Specifically, a counter (a counter that is periodically updated in a fixed range by one count) that functions similarly to the counter for determining the jackpot provided in the pachinko gaming machine is placed in the “hanging board”. By setting the value of the counter and resetting (clearing it to 0) when the power of the pachinko gaming machine is turned on, the timing of occurrence of a big hit in the “hanging board” is grasped. Then, in accordance with the timing of the occurrence of the jackpot that has been grasped, an illegally generated symbol passing gate operation signal for the hit ball is generated in the "hanging board" and outputted to the control board of the pachinko machine to generate an unreasonable jackpot. It is to let. At amusement arcades and the like, there has been a problem that a great deal of damage has been caused by an illegal act using the “hanging board”.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and it is impossible to determine the timing of occurrence of a jackpot due to a "hanging board" or the like. It is an object of the present invention to provide a control device for a gaming machine which can prevent the occurrence of a game machine.

[0006]

In order to achieve this object, a control device for a gaming machine according to claim 1 comprises a control means for performing control relating to a game based on a random number, and further comprises a control means for controlling the game by the control means. It is provided with a count circuit updated according to the control state, and random number generation means for generating the random number based on the value of the count circuit.

According to the first aspect of the present invention, the count value of the count circuit is updated in accordance with the control state of the game by the control means, and the random number generation means based on the count value. A random number is generated. Therefore, since the update amount of the random number changes according to the control state of the game by the control means, the change amount cannot be grasped by the “hanging board” or the like. For this reason, it is impossible to determine the timing of occurrence of a jackpot due to a “hanging substrate” or the like.

[0008]

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In this embodiment, a description will be given using a pachinko gaming machine as an example of a gaming machine, in particular, a first-type pachinko gaming machine. It should be noted that the present invention
It is of course possible to use it for seed pachinko game machines and other game machines.

FIG. 1 is a front view of the gaming board of the pachinko gaming machine P. Around the game board 1, there are provided a plurality of winning ports 2 from which 5 to 15 game balls are paid out when a hit ball wins. In the center of the game board 1, a liquid crystal (L) that displays a pattern or the like as a plurality of types of identification information
CD) display 3 is provided. The display screen of the LCD display 3 is divided horizontally into three parts.
In each of the three divided display areas, the symbol is displayed in a variable manner.

Below the LCD display 3, there is provided a symbol operation gate (first type start port) 4. When the hit ball passes through the symbol operation gate 4, the above-described variable display of the LCD display 3 is started. Below the symbol operation gate 4, a specific winning opening (large winning opening) 5 is provided. When the display result after the change of the LCD display 3 matches one of a predetermined combination of symbols, the specific winning opening 5 becomes a big hit and a predetermined time (for example, 30) so that the hit ball can easily win. The winning opening is opened until the second elapses or until 10 hit balls are won. The specific winning opening 5 is provided with a V zone 5a. If a hit ball passes through the V zone 5a while the specific winning opening 5 is open, a continuation right is established and the specific winning opening 5 is closed. Thereafter, the specific winning opening 5 is opened again for a predetermined time (or until a predetermined number of hit balls are won in the specific winning opening 5). The opening and closing operation of the special winning opening 5 can be repeated up to 16 times (16 rounds).
A state in which the opening and closing operation can be performed is a state in which a predetermined game value is given (special game state).

FIG. 2 is a block diagram showing an electrical configuration of the pachinko gaming machine P. The control unit C of the pachinko gaming machine P includes a CPU 11 which is an arithmetic device and its CPU 1
ROM 12 storing various control programs executed by the CPU 1, a RAM 13 for temporarily storing various data and the like, and a falling edge of an M1 signal 31 (see FIG. 3) output from the CPU 11. A counter IC 14 for counting each time. The programs in the flowcharts shown in FIGS. 4 to 7 are stored in the ROM 12 as a part of the control program.

The RAM 13 has a random number counter 13a and a timer counter 13b. Random number counter 13
a is a counter for determining the occurrence of a jackpot. The value of the random number counter 13a is updated by one count every 2 ms in the range of "0 to 346" by the random number counter update process (S10) of FIG. The timer counter 13b is a counter for changing the reading time of the value of the random number counter 13a. When the ball hit into the game area of the game board 1 passes through the symbol operation gate 4,
A value obtained by adding “+1” to the count value of the counter IC 14 is written to the timer counter 13b. The written value of the timer counter 13b is decremented by one in the big hit determination process (S30) in FIG. 7, and when the count value becomes "0", the value of the random number counter 13a is read. When the read value of the random number counter 13a matches the hit value (for example, “7”), a big hit occurs. When a big hit occurs, a big hit command is sent from the control unit C to a display device D described later. Display device D
Controls the variable display of the LCD display 3 to a jackpot state based on the jackpot command.

The counter IC 14 is a counter which counts up by one every time the M1 signal 31 output from the CPU 11 falls, and is updated in the range of "0 to 255". The count value of the counter IC 14 is not initialized when the power is turned on, and starts counting up from an indefinite value when the power is turned on. Also, counter IC
The count value of 14 continues counting without being cleared even when a reset interrupt occurs every 2 ms.

Here, the M1 signal 31 output from the CPU 11 will be described with reference to FIG. M1 signal 3
1 is a signal for fetching an operation code;
Fall almost simultaneously with the rise of one clock, T3
This signal rises almost at the same time as the rise of the clock. The M1 signal 31 is always output at least once when the CPU 11 executes each instruction. For example, when the CPU 11 executes an instruction including only the first opcode, the M1 signal 31 is output only once when the instruction is executed. When the instruction is executed, the M1 signal 31 is output twice. In addition, the number of machine cycles constituting one instruction differs depending on the instruction. Therefore, the M1 signal 31
Is always output when the CPU 11 executes the instruction, but the output interval of the M1 signal 31 is not constant. That is, the output interval of the M1 signal 31 changes according to the command executed by the CPU 11 (according to the gaming state of the ball game machine 1).

In this embodiment, the value of the counter IC 14 is counted up in the range of "0 to 255" by the M1 signal 31, and the read time of the random number counter 13a is changed based on the counted value. Therefore, it is possible to make it impossible to grasp the read time of the random number counter 13a using the “hanging board”. Moreover, as described above, the count value of the counter IC 14 is
Since the counter is not initialized when the power is turned on and starts counting up from an indefinite value when the power is turned on, the random number counter 13a using the "hanging board"
It is possible to make it even more difficult to grasp the readout time. Therefore, it is impossible to grasp the timing of occurrence of the jackpot due to the “hanging board”, and it is possible to prevent an illegal act using the “hanging board”.

The "random number generating means for generating the random number based on the value of the count circuit" according to the first aspect includes "the random number read time based on the count circuit value" as in this embodiment. Changing means for generating random numbers ".

As shown in FIG. 2, these CPUs 11,
The ROM 12, the RAM 13, and the counter IC 14 are connected to each other via a bus line 17. Bus line 1
7 is also connected to an input / output port 15, which is connected to the display device D and other input / output devices 16
Is connected to The control unit C sends operation commands to the display device D and other input / output devices 16 via the input / output port 15 to control those devices. The variable display on the LCD display 3 and the opening / closing operation of the specific winning opening 5 are also controlled based on the operation command.

The display device D includes a CPU 21, a program ROM 22, a work RAM 23, and a video RAM 24.
, Character ROM 25, image controller 26
, An input / output port 27 and the LCD display 3. The CPU 21 of the display device D responds to the operation command output from the control unit C to the LCD display 3.
The program ROM 22 stores a program executed by the CPU 21. The work RAM 23 is a CPU
21 is a memory that stores work data used when the program is executed by the program 21.

The video RAM 24 is a memory in which data to be displayed on the LCD display 3 is stored.
The display content of the D display 3 is changed. That is, the change display of the symbol in each display area is performed by rewriting the contents of the video RAM 24. The character ROM 25 is a memory for storing character data such as symbols displayed on the LCD display 3. The image controller 26 includes a CPU 21, a video RAM 24,
By adjusting the timing of each input / output port 27,
In addition to reading and writing data, the video RAM 2
The display data stored in the LCD 4 is displayed on the LCD display 3 at a predetermined timing with reference to the character ROM 25.

Next, each process executed in the pachinko gaming machine P configured as described above will be described with reference to the flowcharts of FIGS.

FIG. 4 is a flowchart of a reset interrupt process executed every 2 ms in the control unit C of the pachinko gaming machine P. In the reset interrupt processing, first, it is checked whether or not the processing is the processing executed first after the power is turned on (S1).
1: Yes), the RAM 13 is initialized (S
2). As described above, the value of the counter IC 14 is not initialized even in the reset interrupt processing executed first after the power is turned on. For this reason, the count of the counter IC 14 is started from an indefinite value that changes each time the power is turned on. In this regard, it is also possible to make it impossible to grasp the random number value using the “hanging board”.

After the execution of the process of S2 or in the process of S1, if it is determined that the reset interrupt process is executed after the power is turned on for the second time or later (S1: No), the random number shown in FIG. A counter update process (S10) is performed.

FIG. 5 is a flowchart of the random number counter updating process. By this process, the value of the random number counter 13a is updated by one count within the range of "0 to 346". In the random number counter update process, first, the random number counter 1
It is checked whether the value of 3a is equal to or greater than "346" (S11). If the value of the random number counter 13a is less than "346" (S11: No), the value of the random number counter 13a is updated by adding "1" (S12). On the other hand, if the value of the random number counter 13a is equal to or more than "346" (S11: Ye
s), the value is cleared to “0” (S13), and this processing ends.

When the random number counter updating process (S10) is completed, the process returns to the reset interrupt process of FIG. 4, and thereafter, the switch winning process (S20) of FIG. 6 is executed. FIG. 6 is a flowchart of the switch winning process. In the switch winning process, first, it is checked whether or not the hit ball has passed the symbol operation gate 4 (S21). If the hit ball has passed (S21: Ye)
s), reading the value of the counter IC 14 (S22),
The value obtained by adding “+1” to the read value is the timer counter 1
3b (S23).

On the other hand, if the hit ball has not passed through the symbol actuation gate 4 in the process of S21 (S21: No),
This process ends without writing to the timer counter 13b. As described above, the value of the counter IC 14 is set to “+” in the timer counter 13b.
Since the value of "1" is written, any value of "1 to 256" is written, and "0" is not written. Therefore, when the hit ball passes through the symbol operation gate 4 (S21: Yes), the big hit determination is always performed through the branch of S31: No in the big hit determination processing of FIG. 7 (S35).

When the switch winning process (S20) is completed, the process returns to the reset interrupt process of FIG. 4, and thereafter, the big hit determination process (S30) of FIG. 7 is executed. FIG. 7 is a flowchart of the jackpot determination process. In the jackpot determination process, the value of the random number counter 13a is read at the timing when the value of the timer counter 13b changes from "1" to "0" to determine the occurrence of a jackpot. If a jackpot occurs, a jackpot process is performed.

In the jackpot determination process, first, it is checked whether the value of the timer counter 13b is "0" (S31).
If it is "0" (S31: Yes), since the hit ball has not passed through the symbol operation gate 4, the big hit determination is not performed, and the process is terminated as it is. On the other hand, if the value of the timer counter 13b is not “0” (S31: No),
The hit ball has passed through the symbol operation gate 4. Therefore, in this case, the value of the timer counter 13b is subtracted by "1" (S32), and it is determined whether or not the value of the timer counter 13b after the subtraction is "0" (S33).

If the value of the timer counter 13b after the subtraction is "0" (S33: Yes), the timing of the jackpot determination has arrived, that is, the read time of the random number counter 13a has arrived. (S34), and the read random number counter 13
It is determined whether or not the value of a matches one of the hit values (S35). If the read value of the random number counter 13a matches one of the hit values (S35: Yes), it is determined that a big hit has occurred, and a big hit process is executed (S3).
6).

On the other hand, if the value of the timer counter 13b after the subtraction is not "0" in the process of S33 (S3
3: No), since it is not the timing of the jackpot determination (the timing of reading the value of the random number counter 13a),
This processing ends. In the process of S35, if the read value of the random number counter 13a does not match any of the hit values (S35: No), the process is terminated as it is a loss.

Since the maximum value written to the timer counter 13b in the process of S23 (FIG. 6) is "256", it is necessary to wait until the value of the timer counter 13b becomes "0" in the process of S32 (FIG. 7). Is up to 512m
s (= 256 × 2 ms) is required. However, in the pachinko gaming machine P of the present embodiment, the shortest time that a hit ball can pass through the symbol operation gate 4 is 600 ms. Therefore, S23
The value of the timer counter 13b written by the above processing is surely set to "0" until the next hit ball passes the symbol operation gate 4. That is, until the value of the timer counter 13b becomes "0", the next hit ball does not pass through the symbol operation gate 4 and rewrite the value of the timer counter 13b. Therefore, the hit ball is the symbol operation gate 4
(S21: Yes), S31: N in FIG.
Through the branch of o, always determine the jackpot (S35)
You can do it.

On the other hand, in the pachinko game machine P in which the shortest time for a hit ball to pass through the symbol operation gate 4 is 512 ms or less, the time is written to the timer counter 13b within the shortest time for the hit ball to pass through the symbol operation gate 4. The maximum value of the update of the counter IC 14 may be reduced so that the maximum value becomes “0” (for example, “255” becomes “100”).
And). Also, a case where the next hit ball passes the symbol operation gate 4 before the value of the timer counter 13b becomes “0” by providing a plurality of storage memories without changing the maximum value of the update of the counter IC 14 The counter IC at that time
14 is stored in the storage memory, and the timer counter 13
After the value of b becomes "0", the value of the storage memory may be written to the timer counter 13b.

After the end of the jackpot determination process (S30),
Returning to the reset interrupt process of FIG. 4, each process (S3) is executed, and the current reset interrupt process ends.

As described above, in the pachinko gaming machine P according to the present embodiment, the read time of the random number counter 13a for determining the occurrence of the big hit (judgment time of the big hit) is fixed when the hit ball passes through the symbol operation gate 4. Counter IC
It is changed based on the 14 count values. Specifically, when the hit ball passes through the symbol operation gate 4, the counter IC
14 is read out, and "+"
The value of the random number counter 13a is read at the timing when the value "1" changes from "1" to "0". As described above, the counter IC 14 counts up each time the M1 signal 31 falls. Since the M1 signal 31 is output at irregular intervals according to the state of the game of the ball game machine P, the count value of the counter IC 14 that is counted up based on the M1 signal 31 is grasped by the “hanging board”. It is impossible to do. For this reason, since the "hanging board" cannot know the timing of the jackpot, the passing signal of the symbol operation gate 4 cannot be output to the control unit C of the pachinko gaming machine P in accordance with the timing of the jackpot. . Therefore, it is possible to prevent the fraudulent act of using the “hanging substrate” to generate an unreasonable jackpot.

Next, a second embodiment will be described with reference to FIGS. In the first embodiment, the random number counter 13 is set based on the count value of the counter IC 14.
Although the read time of a was changed, in the second embodiment,
The value of the random number counter 13a is changed based on the count value of the counter IC14. Specifically, the count value of the counter IC 14 is added to the random number counter 13a, and the occurrence of the big hit is determined based on whether or not the value after the addition matches the hit value. Hereinafter, the same portions as those of the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. Only different portions will be described.

FIG. 8 is a flowchart of the reset interrupt processing of the second embodiment executed every 2 ms in the control section C of the pachinko gaming machine P. In the reset interrupt processing,
If the reset interrupt processing is executed after the power-on for the second time or later (S1: No), or after execution of the processing of S2, the random number counter update processing (S10) of FIG. 5 is executed. Is determined (S40).

FIG. 9 is a flowchart of the jackpot determining process according to the second embodiment. In the jackpot determination process, when the hit ball passes through the symbol operation gate 4, the count value of the counter IC 14 is added to the value of the random number counter 13a, and the occurrence of the jackpot is determined based on the addition result. If a jackpot occurs, a jackpot process is performed.

In the jackpot determination process, first, it is checked whether or not the hit ball has passed the symbol operation gate 4 (S41). If the hit ball has passed (S41: Yes), the count value of the counter IC 14 is read (S42). Then, the value of the random number counter 13a is read (S43), and both the read values are added (S44). The value after the addition is a random number counter 13a.
Whether or not it exceeds the upper limit value of "346" for updating
That is, it is determined whether or not “347” or more (S4).
5) If it is equal to or greater than "347" (S45: Yes), the value after the addition is set to "3" in order to set the value after the addition to "0 to 346" which is a value within the update range of the random number counter 13a.
47 "is subtracted (S46). The value after the subtraction in the process of S46 or the value after the addition in the process of S44 is “347”.
If less than (S45: No), S44 or S4
It is determined whether or not the value obtained by the processing in step 6 matches one of the hit values (S47).
es) It is determined that a jackpot has occurred, and a jackpot process is executed (S36). The addition and subtraction in the processing of S44 and S46 are performed by a register in the CPU 11.
Thus, the addition / subtraction does not destroy the value of the random number counter 13a.

On the other hand, if the value obtained by the processing of S44 or S46 does not match any of the winning values (S47: No), it is a loss, so this processing is terminated as it is. In the process of S41, if it is not confirmed that the hit ball has passed through the symbol operation gate 4 (S41: N
o), without determining the jackpot occurrence,
This processing ends.

After the end of the jackpot determination process (S40),
Returning to the reset interrupt process of FIG. 8, each process (S3) is executed, and the current reset interrupt process ends. The "random number generating means for generating the random number based on the value of the count circuit" according to claim 1 includes "random number generation means for changing the random number value based on the value of the count circuit" as in the second embodiment. Means.

As described above, in the pachinko gaming machine P of the second embodiment, the value of the random number counter 13a is not used for judging the jackpot as it is, but the value of the random number counter 13a is determined based on the count value of the counter IC 14. Change
The occurrence of the jackpot is determined based on the changed value. Specifically, when the ball passes through the symbol operation gate 4,
The value of the random number counter 13a and the count value of the counter IC 14 are read, the two values are added, and the big hit is determined based on whether or not the value after the addition matches the hit value.

As described above, since the count value of the counter IC 14 cannot be grasped by the “hanging board”, the “hanging board” sets the value of the random number counter 13a, which is changed based on the count value of the counter IC 14, to the value. I can't figure out. Therefore, "hanging board"
Cannot detect the timing of the jackpot, and cannot output the passing signal of the symbol operation gate 4 to the control unit C of the pachinko gaming machine P in accordance with the timing of the jackpot. Therefore, it is possible to prevent the fraudulent act of using the “hanging substrate” to generate an unreasonable jackpot.

In the first embodiment, the processing of S22 and S23 of FIG. 6 and the processing of S32 to S34 of FIG. 7 correspond to the random number generating means according to the first embodiment. 9 correspond to the processing from S42 to S47.

As described above, the present invention has been described based on the embodiments. However, the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. Can easily be inferred.

For example, in each of the above embodiments, the counter IC
The reading time of the random number counter 13a is changed based on the count value of the counter 14 (first embodiment), or the count value of the counter IC 14 is added to the value of the random number counter 13a (second embodiment) to obtain a big hit. The random number value for determining the occurrence was changed (random number value was generated). However, the range of the update of the random number counter 13a is “0 to 3”.
The value of the counter IC may be directly used as a random number value using the counter IC updated in the range of "46".

The signal for counting up the counter IC 14 is not necessarily limited to the M1 signal 31. If the signal is constantly output at irregular intervals, M
One signal 31 can be used instead. For example, C
Memory request signal output from PU11, IO
Request signal, read signal, write signal, refresh signal, wait signal, bus request signal, bus
An acknowledge signal, a signal on any address bus, a signal on any data bus, etc.
It can be used instead of 1. Further, these plural signals may be used in combination.

Hereinafter, modified examples of the present invention will be described. A random number counter; updating means for updating the value of the random number counter; and reading means for reading the value of the random number counter at a predetermined timing. The value of the random number counter read by the reading means is predetermined. Control means for executing the updating means and the reading means, and controlling the game by the controlling means in a ball game machine which gives a predetermined game value to the player under predetermined conditions when the value matches one of the values. A ball game machine 1 comprising: a counting circuit updated according to a state; and changing means for changing a reading time of the random number counter by the reading means based on a value of the counting circuit.

A random number counter, updating means for updating the value of the random number counter, and reading means for reading the value of the random number counter at a predetermined timing are provided, and the value of the random number counter read by the reading means is provided. A control means for executing the updating means and the reading means in a ball game machine which gives a predetermined game value to a player under predetermined conditions when the value matches one of predetermined values; A ball game machine 2 comprising: a count circuit updated according to a control state of a game; and changing means for changing a value of the random number counter based on a value of the count circuit. The change of the value of the random number counter by the changing means is performed, for example, by adding the value of the count circuit to the value of the random number counter.

The control device for a gaming machine according to claim 1, wherein said counting circuit is externally attached to said control means. Therefore, even when the control means is controlled by, for example, a reset interrupt process, the count value of the count circuit is not cleared every time the reset interrupt process is executed, and the count value is maintained and counted. Can be continued.

In the control device for a gaming machine, the control device for a gaming machine, or the ball-and-ball gaming machine according to the first aspect, the counting circuit is provided in accordance with a control state of the game by the control means. A control device 2 for a gaming machine, wherein a count value is updated based on a signal constantly output from a control means at non-equal intervals. Therefore, since the updating of the count circuit is constantly performed at irregular intervals, it is possible to make it impossible to grasp the random number value using the “hanging board” or the like.

In the game machine control device, the game machine control devices 1 and 2 or the ball and ball game machines 1 and 2, the counting circuit includes an M1 signal output from the control means and a memory. A request signal, an IO request signal, a read signal, a write signal, a refresh signal, a wait signal, a bus request signal, a bus acknowledge signal, a signal of at least one address bus, or
A control device 3 for a gaming machine, wherein a count value is updated based on any one of signals of at least one data bus. These signals are constantly output at irregular intervals in accordance with the control state of the game by the control means. Therefore, it is not necessary to separately provide a circuit for generating the signals, and the circuit cost can be reduced. Note that some of the above-described signals may be used in combination.

[0051]

According to the gaming machine control device of the present invention,
Since the update amount of the random number changes according to the control state of the game by the control means, such a change amount cannot be grasped by a “hanging board” or the like. Therefore, "hanging board"
This makes it impossible to grasp the timing of the occurrence of the jackpot due to the above-mentioned factors, so that there is an effect that it is possible to prevent an illegal act using such a “hanging board”.

[Brief description of the drawings]

FIG. 1 is a front view of a game board of a pachinko gaming machine according to one embodiment of the present invention.

FIG. 2 is a block diagram showing an electrical configuration of the pachinko gaming machine.

FIG. 3 is a timing chart of an M1 cycle (operation code fetch cycle).

FIG. 4 is a flowchart showing a reset interrupt process.

FIG. 5 is a flowchart showing a random number counter update process.

FIG. 6 is a flowchart showing a switch winning process.

FIG. 7 is a flowchart showing a jackpot determination process.

FIG. 8 is a flowchart illustrating a reset interrupt process according to the second embodiment.

FIG. 9 is a flowchart illustrating a jackpot determination process according to the second embodiment.

[Explanation of symbols]

 3 Liquid crystal (LCD) display 4 Symbol operation gate 5 Special winning opening 11 CPU of control unit 13 RAM of control unit 13a Random number counter 13b Timer counter 14 Counter IC C Control unit (control unit of gaming machine) D display device P Pachinko game machine (Game machines)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshio Yamazaki 7-49 Haruoka-dori, Chikusa-ku, Nagoya JT Co., Ltd.

Claims (1)

[Claims] 1. A control device for a gaming machine having a control means for performing control relating to a game based on a random number, comprising: a count circuit updated in accordance with a control state of the game by said control means; And a random number generation means for generating the random number based on the control information.