JPH0796070A - Game machine control circuit - Google Patents

Abstract

PURPOSE:To generate a random number of a high quality by performing a prescribed operation to plural pieces of stored initial values and generating the random number, storing successively the generated random number as a new initial value, and generating a new random number, based on plural pieces of stored initial numbers. CONSTITUTION:This circuit is provided with an initial value storage means 2 for storing plural pieces of arbitrary values set in advance as initial values, and a random number is generated by executing a prescribed operation by a random number generating means to plural pieces of initial values stored therein, and the generated random number is stored as a new initial value in the initial value storage means 2. In the case a condition of 1<q<p (p) and (q) are natural numbers) is satisfied, and the number of bits of the random number to be generated is L bits, the initial value storage means 2 is constituted by providing an initial value number determining part 4 for determining the number of pieces (n) (n<p) of the initial value, based on (p) and L bits, and an initial value store part 5. Also, a random number generating means 3 calculates the random number, based on the initial values x0-xp-1 defined by a first and a second arithmetic parts 6, 8 and a recalculating part 7, and (p) and (q).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a game machine control circuit, and more particularly to a game machine control circuit for generating a random number used in a game.

[Background of the Invention] In recent years, in gaming machines, for example, pachinko gaming machines and the like, amusement of a game has been enhanced by a variable display game with a special symbol display device arranged substantially in the center of a game area.

In this variable display game, for example, when a predetermined game condition is satisfied (usually, when winning a prize at a starting opening).
In addition, while the symbols displayed in the special symbol display device start displaying fluctuations, the fluctuations stop after a predetermined period of time, and it is common to make a big hit when the symbols at the time of stopping are aligned with specific symbols. In such a variable display game, determination of a big hit, determination of a symbol at the time of stop (hereinafter, referred to as a stop symbol), and the like include probabilistic elements and are accompanied by a contingency, so that excitement for a game is raised. There is.

Therefore, a random number with a uniformity and irregularity (random number for determining jackpot, random number for determining stop symbol) is used for determination of jackpot, determination of stop symbol, and the like. The random number is generated by the gaming machine control circuit.

[0005]

2. Description of the Related Art Conventionally, as a game machine control circuit for generating such a random number, there is a jackpot determination device having a digit rising counter as shown in FIG.

FIG. 8 is a diagram for explaining the operation of the jackpot determining device.

The jackpot determining device shown in FIG. 8 is "00".
The big hits are controlled by the counter of the digit rising method in which the values up to “234” are regularly moving one by one at a high speed at all times. The big hit is that the value selected at a predetermined timing is preset. This is a case in which one determined winning value (in this case, “03”) is reached, and as a result, the jackpot probability is 1/235.

Incidentally, the timing of this jackpot determination is generally at the time of winning the starting opening of the game ball,
The time required to move one frame of the digit-up counter is a very short period, for example, 0.004096 seconds, and one cycle is 0.96256 seconds (= 0.004).
Since it is sufficiently short (096 × 235), it is used as a random number.

[0009]

Random numbers are variables that do not have any law in how values are changed, and the original meaning is a sequence whose values cannot be predicted. .

However, the random number generated by the above-described digit-up counter is random in the timing of selecting the value of the counter (for example, at the time of winning of the starting mouth) and the cycle of the counter is short. For this reason, the value generated by the digit-up counter is used as a random number, but is a regular arithmetic sequence that is added at a certain fixed value (added one by one in the above example). Therefore, it cannot be strictly called a random number.

That is, it is preferable that the random numbers, which are the sources of randomness that excite the interest in the game in the variable display game, are statistically independent numbers.

[Object] In view of the above problems, an object of the present invention is to generate a high-quality random number.

[0013]

According to a first aspect of the present invention, as shown in FIG. 1, in a game machine control circuit 1 for controlling a game in a game machine and generating a random number used in the game, An initial value storage means 2 for storing a plurality of set arbitrary values as initial values, and a random number for performing a predetermined operation on the plurality of initial values stored in the initial value storage means 2 to generate a random number. The random number generated by the random number generating means 3 is sequentially stored in the initial value storing means 2 as a new initial value, and is stored in the initial value storing means 2 by the random number generating means 3. The above object is achieved by generating a new random number based on the plurality of initial values thus obtained.

In this case, in addition to the invention described in claim 1, as described in claim 2, the natural numbers p and q are 1 <
If the condition of q <p is satisfied and the number of bits of the random number to be generated is L
In the case of bits, the initial value storage means 2 stores the p,
The number of initial values n (n <n
p) and the p storage areas A ₀ , A ₁ , ..., A _p−1 , and the n determined by the initial value number determination unit 4 The preset arbitrary values of L bits are set to initial values x ₀ , x ₁ , ..., X
_The random number generating means 3 has an initial value storage 5 for storing _n-1 in the storage areas A ₀ , A ₁ , ..., A _n-1.
Is a first arithmetic unit 6 that calculates in advance the arithmetic auxiliary number m required for the operation based on the n, L, and p, the arithmetic auxiliary number m calculated by the first arithmetic unit 6, and the initial value storage storage area a ₀ in part _{5, a 1, ···, a} n-1 stored in the initial value _{x 0, x 1, ···,} x n-1 and the pre-initial value x _n-1 based on Recalculating unit 7 for recalculating
, Second calculation unit 8 for pre-calculating initial values x _n , x _{n + 1} , ..., X _{p-1 based} on the above, the first calculation unit 6, the recalculation unit 7, and the second calculation unit. The initial values x ₀ , x ₁ , ...
.., x _p-1 , after being determined, initial values x ₀ , x ₁ , ... Stored in the storage areas A ₀ , A ₁ , ..., A _p-1 in the initial value storage unit 5. , X _p−1, and a third calculation unit 9 for calculating a random number to be generated based on the p and q, and in this case, in addition to the invention described in claim 2, As described in claim 3, n determined by the initial value number determination unit 4 is a minimum natural number equal to or larger than a value of p / L, and the first calculation unit 6 is m = n ×.
If m ≠ 0, the recalculation unit 7 calculates m by Lp.

[0015]

[Equation 4]

According to the above, the initial value x _n-1 is recalculated, and the second calculation unit 8

[0017]

[Equation 5]

Thus, the initial values x _n , x _{n + 1} , ...
x _p−1 is calculated, and the third calculation unit 9

[0019]

[Equation 6]

The random numbers x _p , x _{p + 1} ,
It is preferable to calculate ...

In this case, in addition to the invention described in claim 2 or claim 3, as described in claim 4, the random numbers x _p , x _{p + 1} ,.・ ・
Are sequentially stored as new initial values from the storage area A ₀ of the initial value storage unit 5 to the storage areas A ₁ , ..., A _p−1 ,
After storing in the storage area A _p-1 , it is effective to store again sequentially from the storage area A ₀ .

[0022]

According to the first aspect of the present invention, the random number generation means performs a predetermined operation based on the plurality of initial values stored in the initial value storage means to generate a random number, and the generated random number is By sequentially storing the new initial value in the initial value storage means, a high-quality random number having high randomness is generated as compared with the conventional digit-up counter.

In this case, according to the invention of claim 2,
Pn generated by the first calculation unit, the recalculation unit, and the second calculation unit based on the n initial values determined by the initial value number determination unit and the n initial values. A total of p initial values and a total of p initial values are stored in the initial value storage unit, and a random number is generated by the third operation unit based on the p initial values stored in the initial value storage unit. In addition to the invention described in claim 1, a high-quality random number is easily generated.

Further, in this case, according to the invention of claim 3, n determined by the initial value number determining unit is a minimum natural number equal to or larger than the value of p / L, and m = n by the first computing unit. ×
When m is calculated based on the equation of Lp, and m ≠ 0, the recalculation unit calculates the initial value x based on the equation of [Equation 4].
_n-1 is recalculated, the second calculation unit calculates the initial values x _n , x _{n + 1} , ..., X _{p- 1} based on the formula of the above [Formula 5], and the third calculation unit Then, the random numbers x _p , x _{p + 1} , ... Are generated based on the formula of the above [Equation 6].
After p initial values are first obtained by the first operation unit, the recalculation unit, and the second operation unit, the exclusive OR operation is only executed when the final random number is generated. Therefore, in addition to the invention described in claim 2, a high-quality random number is generated at high speed.

According to the invention described in claim 4, the random numbers x _p , x _{p + 1} , ...
A new initial value is sequentially stored from the storage area A ₀ of the initial value storage section to the storage areas A ₁ , ..., A _p-1.
After being stored in _p-1 , after being sequentially stored again from the storage area A ₀ , a plurality of initial values that are the basis of random number generation are updated. Therefore, the invention described in claim 2 or 3 above. In addition, a higher quality random number is generated.

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to FIGS.
Will be described with reference to. 2 to 7, in FIG.
The same reference numerals are given to the same portions as.

First, the configuration of this embodiment will be described.

FIG. 2 is a front view of the gaming board 10 in the pachinko gaming machine using the gaming machine control circuit 1 of this embodiment.

As shown in FIG. 2, a game area 12 surrounded by guide rails 11 is formed on the surface of the game board 10 of the pachinko game machine in this embodiment, and the game area 12 is located at a substantially central position. A special symbol display device 13 for performing a variable display game is provided, and in a position below the special symbol display device 13, in a variable display game on the special symbol display device 13, a variation for performing a special game when a big hit occurs. A winning device (big winning opening) 14 is provided.

A first-type starting port 15 is provided above the variable winning device (big winning port) 14.

The variable display game on the special symbol display device 13 is a game area 1 by a game ball launching device (not shown).
On condition that the game ball guided in 2 wins the first type starting opening 15, the three symbols of the left symbol, the middle symbol, and the right symbol displayed in the special symbol display device 13 are displayed in a variable display. With the start, after a predetermined time (after 5 seconds or more), the left symbol, the right symbol, the variation of the medium symbol stops in order, and when the three symbols are aligned with the specific symbol at the time of stop, it is a big hit. The jackpot decision, the stop symbol decision, etc. are performed based on the random number generated by the gaming machine control circuit 1, so that the variable display game includes a stochastic element accompanied by contingency, and excites the interest of the game. Is.

FIG. 3 is a block diagram showing a main configuration of a pachinko gaming machine including the gaming machine control circuit 1 in this embodiment.

In FIG. 3, the pachinko gaming machine in this embodiment is a gaming machine control circuit 1, a first type starting switch 2
1, continuous switch 22, count switch 23, low-pass filter 24, buffer gate 25, output port 2
6, a driver 27 and a variable winning device (big winning opening) 14 are provided. In FIG. 3, B is a bus.

The gaming machine control circuit 1 is for generating uniform random numbers with a predetermined probability (in the case of this embodiment, a probability of 1/245), a random number generation block 1a, a CPU (Ce
ntral Processing Unit) 1b, frequency divider 1c, ROM
(Read Only Memory) 1d, RAM (Random Access Me)
mory) 1e.

Here, the random number generation block 1a comprises an initial value storage means 2 and a random number generation means 3, and the initial value storage means 2 comprises an initial value number determination section 4 and an initial value storage section 5, The random number generation means 3 includes a first calculation unit 6 and a recalculation unit 7.
And a second calculation unit 8 and a third calculation unit 9. In addition, the gaming machine control circuit 1, for example, to the management device of the hall (gaming store), winning the first type starting port 15,
It also has a function of outputting various information such as the start of the variable display game and the jackpot in the variable display game. In the random number generated in this embodiment, it is necessary to prepare two parameters p and q. These two values p and q may be any numbers as long as they are positive numbers and satisfy the condition of 1 <q <p. In the following description, random numbers with good dispersion are output. Which is an empirically known combination of p and q, (p, q) = (89,38) (p, q) = (250,103) (p, q) = (521,32) (P, q) = (89, 38) is selected from the inside, and the jackpot probability in this embodiment is 1/245, and 245 <
Since it is 256, the number from “0” to “244” can be represented by 8 bits, so the number of bits of the random number to be generated is L
The case of (= 8) bits will be described.

The initial value storage means 2 is for storing a plurality of initial values (n in this case) for random number generation in the present embodiment, and the initial value number determination unit 4 is p = 89,
Based on L = 8, the smallest natural number equal to or larger than the value of p / L, that is, "12" is determined from 89/8 = 11.125 as the number of initial values n = 12 that is the source of random number generation, and the initial value is determined. The storage unit 5 has 89 storage areas A ₀ , A ₁ , ...,
Has A _88, the storage area of the 12 pieces of which are determined by the initial value number determination unit _{4 A 0, A 1, ···} , the A _11, the initial value x any value of 8 bits which is set in advance ₀ , x ₁ , ...,
It is stored as x ₁₁ . In this case, the initial value stored in the initial value storage unit 5 is C at startup.
The PU1b drives the 8-bit counter, the counter value is read 12 times at a predetermined timing, and the read values for 12 pieces each are initialized to an initial value x ₀ ,
x _1, · · ·, it is those stored as x _11, in the following, the initial value x _0, x _1, · · ·, the x ₁₁ "1",
"3", "5", "7", "11", "13", "1"
7 ”,“ 19 ”,“ 23 ”,“ 29 ”,“ 31 ”,“ 3 ”
In the following description, it is assumed that each 7 "is stored.

The random number generation means 3 generates new initial values and random numbers based on the twelve initial values x ₀ , x ₁ , ..., X ₁₁ stored in the initial value storage unit 5. Specifically, the first calculation unit 6 calculates in advance the calculation auxiliary number m = 7 (= 12 × 8-89) based on the formula of m = n × L−p, and the recalculation unit 7 calculates the calculation auxiliary number. Only when the number m is m ≠ 0, is the calculation for supplementing the number of bits lacking the initial value given in order to set the random number period to the maximum period 2 ^P-1 (in this case, 2 ⁸⁸ ). 7] The initial value x ₁₁ is recalculated based on the equation [7], whereby the initial value x ₁₁ changes from the initial value of “37” to “159” (= ((1SHR
7) Rewritten as XOR31) OR (37SHL7)).

[0038]

[Equation 7]

Then, the second calculation unit 8 sets the initial values x _{0 to} x.
_{Based on 11} and [Equation 8], initial values x ₁₂ , x ₁₃ , ...,
x ₈₈ is calculated, and the storage areas A ₀ , A ₁ , and
..., stored in A _p-1 .

[0040]

[Equation 8]

The third calculation unit 9, the storage area A ₀ of the initial value storage unit _{5, A 1, ···, A} p-1 stored in the initial value x _0, · · ·, and x ₈₈ [equation 9] is used to calculate a random number to be generated. In this case, the third calculation unit 9
Generates a random number having a value based on an 8-bit value (that is, a maximum of 256). Therefore, in order to obtain values “0” to “244” based on the jackpot probability in the present embodiment, “245” of the final output stage is used. Output the remainder as a random number value.

[0042]

[Equation 9]

The CPU 1b is an 8-bit microprocessor which is the center of the gaming machine control circuit 1 for controlling various other circuits, and is stored in the ROM 1d in a sequence unit by a reset interrupt process based on a reset signal described later. Various program processes are executed based on the stored program process procedure. When a random number used in the game is required, the random number generation block 1a is controlled to obtain the random number.

The frequency divider circuit 1c divides the clock pulse output from the clock oscillator to generate a reset signal every 2 msec, and supplies this reset signal to the CPU 1b.

The ROM 1d is a semiconductor memory for storing various control programs and data used by the CPU 1b, and the RAM 1e stores program data and the like used during execution of program processing in the CPU 1b and is related to games. A semiconductor memory that temporarily stores data and is used as a work area.

The variable winning device (big winning opening) 14 is opened when a big hit occurs in the variable display game based on the winning timing of the first type starting opening 15, and gives the player a chance of a special game to play. This gives the player many opportunities to win prize balls.

The first type starting switch 21 is a switch which is provided in the first type starting opening 15 and detects the winning of a game ball.

Continuation switch 22 and count switch 2
3 is a proximity switch provided in the variable winning device (big winning opening) 14, and the continuation switch 22 is
The count switch 23 detects a passing ball that passes through a specific area (V zone) in the variable winning device (big winning opening) 14, and the count switch 23 wins all the winnings in the variable winning device (big winning opening) 14. It detects a sphere. The 10-count fraud prevention processing is performed based on the detection signals from the switches 22 and 23.

The low-pass filter 24 receives the output signals from the first type starting switch 21, the continuation switch 22 and the count switch 23, and also outputs from a discharge control circuit (not shown) which controls the discharge of the game balls. Request signal is input, and each of these signals is shaped and output as a pulse wave, and the buffer gate 25 amplifies the pulse wave shaped by the low-pass filter 24 and outputs the amplified pulse wave to the bus B.

The output port 26 outputs various signals input via the bus B to the driver 27. The driver 27 uses, for example, a variable winning apparatus (on the basis of the various signals input from the output port 26). The driving control signal for driving the special winning opening 14 is output, and, for example, a jackpot signal, a special figure rotation signal, a starting opening winning signal, or a special symbol display device that is output to a hall-side management device or the like. Thirteen
Other control signals such as a data signal, a control code signal, and a strobe signal to be output to the control circuit, a transmission clock signal to be output to the discharge control circuit (not shown), and a prize ball data signal.

FIG. 4 is a block diagram showing a main configuration of a pachinko gaming machine including a gaming machine control circuit 1 which replaces FIG.

That is, in the example shown in FIG. 3, the initial value storage means 2 and the random number generation means 3 are used as the random number generation block 1a.
However, as in the example shown in FIG. 4, the CPU 1b may be configured to have the functions of the initial value storage means 2 and the random number generation means 3, respectively.
In this case, the CPU 1b drives an internal counter at the time of startup, reads the counter value at a predetermined timing, stores the read values of 12 values in an internal register or the like as initial values, and stores the above values in the above [Equation 7] ~
An 8-bit value that is a random number is calculated based on [Equation 9], and "2
A uniform random number is generated by outputting the remainder divided by 45 "as a random number value.

Next, the operation (action) of this embodiment will be described.

In the above structure, first, the game ball launched from the game ball launching device (not shown) by the handle operation is guided by the guide rail 11 and launched into the game area 12 in the game board 10.

In the gaming machine control circuit 1, the presence or absence of the input of the first type starting switch 21 is monitored, and when the game ball wins the first type starting opening 15, the first type starting switch 21 turns on the game ball. When a winning is detected, chattering of the detection signal is removed, logic conversion is performed, and input processing is performed. In addition, when the winning of the game sphere is detected in the first type starting opening 15, the number of the game spheres that won the prize is stored in a predetermined storage area (hereinafter referred to as a reserve area) up to four, and The value of the random number at the time of winning used in the variable display game is also temporarily stored in the holding area. By the way, the random number for determining the jackpot in the variable display game is
It is generated by the random number generation block 1a in the gaming machine control circuit 1.

Then, the variable display game is started in the special symbol display device 13 on the basis of the storage of the winning of the game ball into the first type starting opening 15, that is, based on the data stored in the holding area.

In the variable display game process, the gaming machine control circuit 1 is, for example, a normal operation process, an automatic stop time end monitoring process, a first symbol stop monitoring process, a second symbol stop monitoring and reach determination process, Each process such as three symbol stop monitoring process, symbol determination process, motion end monitoring process, losing motion process, and jackpot motion process is executed.

In this case, the stop symbol in the variable display game is also determined by the random number generated by the random number generation block 1a in the gaming machine control circuit 1, as in the jackpot determination described above.

FIG. 5 is a diagram showing each symbol display area A, B, C in the special symbol display device 13.

The above-mentioned holding area is provided in the RAM 1e of the gaming machine control circuit 1, and this holding area is, as shown in FIG. 5, each symbol display area A, B, C in the special symbol display device 13. As a storage area of the stop symbol corresponding to, the value is sequentially updated for each reset interrupt. Then, the data of each symbol is determined by the CPU 1b whether it is a big hit symbol or a lost symbol. At some time, it is stored in the lost storage area of the RAM 1e.

On the other hand, in the gaming machine control circuit 1, as described above, it is determined whether or not the hit is based on the random number for determining the big hit, and in the case of hitting, the hit symbol stored in the big hit storage area is stopped. In addition to confirming the symbol, in the case of loss, the stop symbol is determined by the lost symbol stored in the loss storage area.

The data relating to the special symbol display device 13 set in the variable display game process is output to the display control circuit (not shown) by the display control process.

6 and 7 are flow charts showing the control processing procedure of the pachinko gaming machine by the gaming machine control circuit 1.

When the control process is started, first, the initial information is set (for example, the stack pointer is set, the RAM 1e is set).
Access permission, reset signal clearing, etc.) are performed (step S1), the value of the internal counter is read by the CPU 1b at a predetermined timing, and the remainder obtained by dividing this counter value by “245” is set to 1 as the initial value.
Two storage areas A ₀ , A ₁ , in the initial value storage unit 5,
..., stored in A _n-1 .

Next, it is checked whether or not the power is turned on for the first time for the pachinko gaming machine (step S2), and if it is detected that the pachinko gaming machine is supplied with power by the operation of the power switch, the CPU 1b causes the pachinko gaming machine to operate. After the registers used and the RAM 1e are initialized, a wait time, which is the time required to confirm the memory contents when the power is turned on, is set (step S
3) Then, the wait time is updated by the wait time process (step S4), and the CPU 1b is in a state of waiting for an interrupt.

On the other hand, in the processing of step S2,
If the power-on is not detected, the memory including the RAM 1e is inspected, that is, the presence or absence of an abnormality in the memory is checked (step S5). If the abnormality is detected in the memory, the CPU 1b interrupts through the processes of steps S3 and S4. It will be in a waiting state.

When no abnormality is detected in the memory in the process of step S5, the gaming machine control circuit 1 performs the prize ball control by the communication process regarding the prize ball data with the discharge control circuit (not shown). While being performed (step S6), probability setting processing for setting the jackpot probability in the variable display game is performed (step S7).

Then, it is checked whether or not the power-on wait time set in step S3 has ended (step S8). If the wait time has not ended, the CPU 1b goes through the process of step S4. Waits for an interrupt, and when the wait time is over, output processing for outputting the output data set in various subroutine processing is performed (step S9) to determine the hit / miss in the variable display game. , A new random number is generated based on the initial values x ₀ , x ₁ , ..., X _p-1 stored in the initial value storage unit 5 by the random number generation block 1a, and the random number is updated by the random number update process. While being performed (step S10), input processing is performed (step S11).

In the following, a power fail monitoring process (step S12) for monitoring the power source voltage of the lamp power source, the solenoid power source, etc., a count switch winning prize monitoring process (step S).
13), continuation switch winning a prize monitoring process (step S1)
4), after the special symbol operation switch prize monitoring process (step S15) in the first type starting port 15 and fraud monitoring process (step S16) are performed, the value of the event counter for efficiently processing each sequence is set. Based on this, branching processing is performed (step S17).

That is, when the counter value is "0", the voice synthesis process (step S18), when the counter value is "1", the LED edit process (step S19), and when the counter value is "2", the lamp edit process is performed. Processing (step S20),
If the counter value is "3", the variable display game process (step S21), if the counter value is "4", the symbol control editing process (step S22), if the counter value is "5", the data transfer process (step) S23), if the counter value is "6", the external information editing process (step S24),
When the counter value is "7", the input information control process (step S25) is performed.

Next, the display data setting process for the display control circuit is performed (step S26), and the random number data used in the process of step S21 is used as a new initial value in a predetermined storage area of the initial value storage unit 5. (Step S27), the sound edit output process is performed (step S28), and the CPU 1b enters a state of waiting for an interrupt.

Then, based on the above-mentioned reset signal, the CPU 1b is designed to recover from the interrupt waiting state.

The generation of a specific random number in this embodiment will be described below.

As described above, in the initial value storage means 2, the initial value number determining unit 4 determines the number n (in this case, n = 12) of initial values necessary for generating a random number, and this number is calculated. As initial values of minutes x ₀ , x ₁ , ..., X ₁₁ , for example, “1”, “3”, “5”, “7”, “11”, “1”
3 ”,“ 17 ”,“ 19 ”,“ 23 ”,“ 29 ”,“ 3 ”
1 ”and“ 37 ”are storage areas A ₀ of the initial value storage unit 5,
It is stored in A ₁ , ..., A _n-1 .

Next, the first operation unit 6 of the random number generation means 3 calculates the operation auxiliary number m (m = 7 in this case), and m ≠
Since it is 0, the recalculation unit 7 recalculates the value of the initial value x ₁₁ based on the above [Equation 7], and x ₁₁ =
“37” is rewritten to x ₁₁ = “159”, and the second calculation unit 8 calculates the initial value x ₁₂ , based on the above [Equation 8].
x ₁₃ , ..., X ₈₈ are calculated, and initial values x _{0 to} x ₈₈ necessary for random number generation are obtained.

In the following, the random number is generated by 89 third initial values x ₀ , which are stored in the storage areas A ₀ , A ₁ , ..., A _p-1 of the initial value storage unit 5 by the third arithmetic unit 9. x ₁ , ..., x
_A random number to be generated is calculated based on _p-1 and the above [Equation 9], and the remainder of "245" is output as a random number value in the final output stage.

The random numbers x ₈₉ , x ₉₀ , ... Calculated by the third calculation unit 9 are new initial values, for example, x ₈₉ is x ₀ in the storage area A ₀ , and x _{90 is} Is x
Sequentially stored in the storage area A ₁ as ₁ , that is, t =
At 127, the initial value x ₈₉ required for the above [Equation 9] is stored in the storage area A ₀ as the initial value x ₀ . In this case, after the value is stored in the storage area A ₈₈ , it is not necessary to secure the storage area indefinitely by storing again from the storage area A ₀ .

In the pachinko gaming machine, the random number obtained by the conventional digit-up counter is the counter value obtained at the timing when the game ball wins the starting opening, but in the present embodiment, the first winning At this time, a random number x ₈₉ is calculated, and thereafter, a random number x ₉₀ is calculated at the second winning, a random number x ₉₁ is calculated at the third winning, and so on.

That is, the random number sequence obtained by the conventional digit-up counter shown in FIG. 8 is a regular arithmetic sequence, but in the present embodiment, the random number sequence is generated based on a plurality of initial values. Therefore, a random random number sequence can be generated.

Further, in the present embodiment, the initial calculation amount is large in order to obtain a plurality of initial values, but the calculation of the third arithmetic unit 9 at the time of taking out the random number takes the case of t = 89 as an example. , The initial value x ₀ and the initial value x ₅₁ need only be performed once by a logical OR (XOR: Exclusive OR) operation, so that random number generation is performed at high speed.

As described above, in the present embodiment, the random number generating means 3 performs a predetermined operation based on the plurality of initial values stored in the initial value storing means 2 to generate and generate a random number. By sequentially storing the generated random number as a new initial value in the initial value storage means 2, it is possible to generate a high-quality random number having high randomness at a high speed, as compared with a conventional digit-up counter.

Therefore, in this embodiment, it is possible to further increase the probability of probability in a gaming machine (pachinko gaming machine).

Although the invention made by the present inventor has been specifically described based on the preferred embodiments, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the gist of the invention. Needless to say.

For example, the combination of the values of the two parameters p and q can be arbitrarily set other than those exemplified in the present embodiment, and similarly, the initial values x ₀ , x ₁ , ...
The numbers stored as _xn-1 may also be arbitrarily set within the condition that the number of bits of the random number to be obtained is the same as the number of bits if all are not "0".

Some specific CPUs have a register called a refresh register for refreshing the dynamic memory, and the data held in this refresh register is decremented every predetermined time.

In a CPU having such a refresh register, if it is not necessary to consider the reproducibility of random numbers, the exclusive OR of the value obtained by the third operation unit 9 and the value of the refresh register is calculated. It may be used as a new initial value.

In the above description, the invention mainly made by the inventor is applied to the gaming machine control circuit in the pachinko gaming machine which is the background field of use, but the invention is not limited thereto. Absent.

For example, the present invention can be applied to control of a pachi-slot or a game machine (pachi-con) that keeps the start rate of a variable display game constant.

[0089]

According to the first aspect of the present invention, the random number generation means performs a predetermined operation based on the plurality of initial values stored in the initial value storage means to generate a random number, and the generated random number is renewed. By sequentially storing such initial values in the initial value storage means, it is possible to generate a high-quality random number with high randomness as compared with a conventional digit-up counter.

In this case, according to the second aspect of the present invention, based on the n initial values set in advance determined by the initial value number determination section and the n initial values, A total of p initial values together with pn initial values generated by the calculation unit and the second calculation unit are stored in the initial value storage unit, and the p initial values are stored in the initial value storage unit. By generating a random number on the basis of the third calculation unit, in addition to the invention described in claim 1, it is possible to easily generate a high-quality random number.

Further, in this case, in the invention described in claim 3, n determined by the initial value number determining unit is a minimum natural number equal to or larger than the value of p / L, and m = n × L by the first calculating unit.
-M is calculated based on the formula of -p, and when m ≠ 0, the recalculation unit recalculates the initial value x _n-1 based on the formula of the above [Formula 4], and the second calculation unit calculates Initial values x _n , x _{n + 1} , ..., X _p-1 are calculated based on the formula of the above [Formula 5], and a random number x is calculated by the third computing unit based on the formula of the above [Formula 6] _p, x p _{+ 1,} to produce a., the first arithmetic unit, the recalculating unit, after the first calculated p number of the initial value by the second calculation section, the final random Since only the exclusive OR operation is executed at the time of generation, a high-quality random number can be generated at high speed in addition to the invention described in claim 2.

Further, in the present invention as defined in claim 4, the random numbers x _p , x _{p + 1} , ... Calculated by the third operation unit are set as new initial values from the storage area A ₀ of the initial value storage unit. When sequentially storing in the storage areas A ₁ , ..., A _p-1, after storing in the storage area A _p-1 , the storage areas A ₀ are sequentially stored again, so that a plurality of random number generation sources are generated. Since the initial value of can be sequentially updated, in addition to the invention described in claim 2 or 3, it is possible to generate a higher-quality random number.

[Brief description of drawings]

FIG. 1 is a principle diagram of a gaming machine control circuit according to the present invention.

FIG. 2 is a front view of a gaming board in a pachinko gaming machine using the gaming machine control circuit of this embodiment.

FIG. 3 is a block diagram showing a main configuration of a pachinko gaming machine including a gaming machine control circuit according to the present embodiment.

FIG. 4 is a block diagram showing a main configuration of a pachinko gaming machine including a gaming machine control circuit replacing the one shown in FIG. 3;

FIG. 5 is a diagram showing each symbol display area in the special symbol display device.

FIG. 6 is a flowchart showing a control processing procedure of a pachinko gaming machine by a gaming machine control circuit.

7 is a flow chart showing a control processing procedure of the pachinko gaming machine by the gaming machine control circuit, following FIG.

FIG. 8 is a block diagram showing an overall configuration of a conventional example.

[Explanation of symbols]

 1 Gaming Machine Control Circuit 1a Random Number Generation Block 1b CPU 1c Frequency Dividing Circuit 1d ROM 1e RAM 2 Initial Value Storage Means 3 Random Number Generating Means 4 Initial Value Number Determining Section 5 Initial Value Storage Section 6 1st Calculation Section 7 Recalculation Section 8 8th Two operation unit 9 Third operation unit 10 Game board 11 Guide rail 12 Game area 13 Special symbol display device 14 Variable winning device (big winning opening) 15 First type starting port 21 First type starting switch 22 Continuation switch 23 Count switch 24 Low-pass filter 25 Buffer gate 26 Output port 27 Driver B bus

Claims (4)

[Claims] 1. Controlling a game on a gaming machine,
In a gaming machine control circuit for generating random numbers used in the game, an initial value storage means for storing a plurality of preset arbitrary values as initial values, and a plurality of initial values stored in the initial value storage means Random number generation means for performing a predetermined operation to generate a random number, and, sequentially storing the random number generated by the random number generation means as a new initial value in the initial value storage means,
A gaming machine control circuit, wherein a new random number is generated by the random number generation means based on a plurality of initial values stored in the initial value storage means. 2. When the natural numbers p and q satisfy the condition of 1 <q <p, and the number of bits of the random number to be generated is L bits, the initial value storage means is a random number based on the p and L. An initial value number determination unit that determines the number n (n <p) of initial values that are the basis of generation, and the p storage areas A ₀ , A ₁ , ..., A _p-1 are provided. The n arbitrary preset L-bit values determined by the initial value number determination unit are set to initial values x ₀ , x
_1, ..., the storage area A ₀ As x _n-1, A _1, · ·
., A _n-1 for storing an initial value storage unit, wherein the random number generation unit calculates in advance a calculation auxiliary number m necessary for calculation based on the n, L, and p. , The auxiliary number of operations m calculated by the first operation unit, and the storage areas A ₀ , A ₁ , ..., A in the initial value storage unit.
_A recalculation unit that recalculates the initial value x _n-1 in advance based on the initial values x ₀ , x ₁ , ..., X _n-1 stored in _n−1 ; Based on the initial values x _n , x _{n + 1} , ...
, X _p-1 is calculated in advance, and the calculation result is stored in the storage areas A _n , A _{n + 1} , ..., A _p-1 in the initial value storage unit; After the initial values x ₀ , x ₁ , ..., X _p-1 are determined by the arithmetic unit, the recalculator, and the second arithmetic unit, the storage areas A ₀ , A ₁ , ... In the initial value storage unit. .., A
Initial values x ₀ , x ₁ , ..., x stored in _p-1
A gaming machine control circuit comprising: _p-1; and a third arithmetic unit that calculates a random number to be generated based on the p and q. 3. The n determined by the initial value number determination unit
Is a minimum natural number equal to or larger than the value of p / L, the first calculation unit calculates m by m = n × L−p, and the recalculation unit calculates m when n ≠ 0, ] Then, the initial value x _n-1 is recalculated, and the second calculation unit calculates The initial values x _n , x _{n + 1} , ..., X _p-1 are calculated according to 3. The gaming machine control circuit according to claim 2, wherein the random numbers x _p , x _{p + 1} , ... 4. The random numbers x _p , x _{p + 1} , ... Calculated by the third operation unit are set as new initial values from the storage area A ₀ to the storage areas A ₁ ,. .., A
sequentially stored in _p-1, the storage area A after stored in _p-1 is the gaming machine control circuit according to claim 2 or 3, wherein the sequentially stored again from the storage area A _0.