Blitz Seed Random Number Generator

Ze Emulatron · 17 September 2016, 23:29

I was thinking about coding a program for the Amiga, but I want the random number generator to generate random numbers based on the seed I give it, so I can get the same results each time I run the program.

I do not want to generate the list of numbers once and then put it in an array.

Is this possible to set the seed with Blitz Basic ? I have had a look in the manual and reference material but cannot find what I am looking for.

idrougge · 18 September 2016, 03:40

Use the Elmore library's randomiser instead.

Ze Emulatron · 25 September 2016, 02:41

Thanks, I believe I have it working like I want.

Ze Emulatron · 26 November 2017, 11:08

I had to write the code in Assembly to give me the results I wanted, It is the Linear congruential generator from Microsoft C

Code:

.randMS
  GetReg d0,MSState
  GetReg d1,0
  GetReg d2,0
  GetReg d3,0
  MOVE.w d0,d1
  MOVE.w d0,d3
  MULU #17405,d1
  SWAP d0
  MULU #17405,d0

  MOVE.l d3,d2
  ADD.l d2,d2
  ADD.l d3,d2

  ADD.l d2,d0
  SWAP d0
  MOVE.w #0,d0
  ADD.l d1,d0
  ADDI.l #2531011,d0
  ANDI.l #2147483647,d0

  PutReg d0,MSState

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17 September 2016, 23:29	#1
Ze Emulatron Registered User Join Date: Nov 2010 Location: Invercargill, New Zealand Posts: 176	Blitz Seed Random Number Generator I was thinking about coding a program for the Amiga, but I want the random number generator to generate random numbers based on the seed I give it, so I can get the same results each time I run the program. I do not want to generate the list of numbers once and then put it in an array. Is this possible to set the seed with Blitz Basic ? I have had a look in the manual and reference material but cannot find what I am looking for.

18 September 2016, 03:40	#2
idrougge Registered User Join Date: Sep 2007 Location: Stockholm Posts: 4,338	Use the Elmore library's randomiser instead.

25 September 2016, 02:41	#3
Ze Emulatron Registered User Join Date: Nov 2010 Location: Invercargill, New Zealand Posts: 176	Thanks, I believe I have it working like I want.

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