Recent Posts

21

ScriptBasic / ScriptBasic Arrays

« Last post by John Spikowski on March 15, 2025, 09:23:55 PM »

One of the best features of ScriptBasic is its array support. ScriptBasic supports index, associative and a combinations of both. There isn't a practical limitation with indices / levels or do arrays need to be predefined. The following example shows these features.

• JSON to a multi-level associative array
• Adding a new element to the arryay
• Displaying the array in a readable format
• Using the UBOUND() function to get quantity

Code: Script BASIC

1. IMPORT webext.bas
2.  
3. json = """{"id":"0001","type":"donut","name":"Cake","ppu":0.55,"batters":{"batter":[{"id":"1001","type":"Regular"},{"id":"1002","type":"Chocolate"},{"id":"1003","type":"Blueberry"},{"id":"1004","type":"Devil's Food"}]},"topping":[{"id":"5001","type":"None"},{"id":"5002","type":"Glazed"},{"id":"5005","type":"Sugar"},{"id":"5007","type":"Powdered Sugar"},{"id":"5006","type":"Chocolate with Sprinkles"},{"id":"5003","type":"Chocolate"},{"id":"5004","type":"Maple"}]}"""
4.  
5. web::json2sba(json)
6.  
7. json{"topping"}{8}{"id"} = "5008"
8. json{"topping"}{8}{"type"} = "Cherry"
9.  
10.  
11. web::sbadump(json)
12. PRINT "\n\n"
13. PRINT "Number of batter items:  ", (UBOUND(json{"batters"}{"batter"}) + 1) / 2, "\n"
14. PRINT "Number of topping items: ", (UBOUND(json{"topping"}) + 1) / 2, "\n\n"
15.  

jrs@RPi-Zero2:~/sb/examples$ sbc array_demo.sb
id = 0001
type = donut
name = Cake
ppu = 0.55
batters
   batter
      [1]
         id = 1001
         type = Regular
      [2]
         id = 1002
         type = Chocolate
      [3]
         id = 1003
         type = Blueberry
      [4]
         id = 1004
         type = Devil's Food
topping
   [1]
      id = 5001
      type = None
   [2]
      id = 5002
      type = Glazed
   [3]
      id = 5005
      type = Sugar
   [4]
      id = 5007
      type = Powdered Sugar
   [5]
      id = 5006
      type = Chocolate with Sprinkles
   [6]
      id = 5003
      type = Chocolate
   [7]
      id = 5004
      type = Maple
   [8]
      id = 5008
      type = Cherry


Number of batter items:  4
Number of topping items: 8

jrs@RPi-Zero2:~/sb/examples$

22

BBC BASIC / Re: Console Mode editions updated to version 0.48

« Last post by John Spikowski on March 07, 2025, 11:51:43 PM »

Richard,

I downloaded your console RPi Zero 32 bit version. Here are the issues I'm dealing with. I'm using the latest version of Raspian OS. Does BBC BASIC run in SSH connection?
I read the docs on your web site and I don't see any reference to supporting the RPi Zero W1 32 bit processor.


pi@raspberrypi:~ $ ldd  /lib/arm-linux-gnueabihf/libm.so.6
        /usr/lib/arm-linux-gnueabihf/libarmmem-${PLATFORM}.so => /u
sr/lib/arm-linux-gnueabihf/libarmmem-v6l.so (0xb6f06000)
        libc.so.6 => /lib/arm-linux-gnueabihf/libc.so.6 (0xb6db9000
)
        /lib/ld-linux-armhf.so.3 (0xb6f9b000)
pi@raspberrypi:~ $

• The examples aren't viewable in a text editor.
• I had to chmod 755 bbcbasic for it to execute.
• This is what I get when I try to run ./bbcbasic
  

Code: [Select]

pi@raspberrypi:~/BBC_RPi_Zero_32 $ ls -l
total 232
-rw-r--r-- 1 pi pi  1040 Jun 25  2020 15puzzle.bbc
-rw-r--r-- 1 pi pi  1546 Jun 28  2020 8queens.bbc
-rw-r--r-- 1 pi pi  2954 Mar  1  2022 animal.bbc
-rw-r--r-- 1 pi pi  1271 Jan 30  1988 animal.dat
-rw-r--r-- 1 pi pi  1208 Apr 26  2019 basrun.bbc
-rw-r--r-- 1 pi pi 98452 Mar  2 07:14 bbcbasic
-rw-r--r-- 1 pi pi  1297 Mar 10  2021 calendar.bbc
-rw-r--r-- 1 pi pi 10992 Jul  3  2020 chess.bbc
-rw-r--r-- 1 pi pi  1149 Mar 14  2023 client.bbc
-rw-r--r-- 1 pi pi   807 Jun 23  2020 hanoi.bbc
-rw-r--r-- 1 pi pi  2979 Mar 14  2023 lanchat.bbc
drwxr-xr-x 2 pi pi  4096 Mar  7 15:33 lib
-rw-r--r-- 1 pi pi  1605 Mar  1 04:06 median.bbc
-rw-r--r-- 1 pi pi  3409 Oct 20 07:14 mysqldem.bbc
-rw-r--r-- 1 pi pi  4403 Oct 22 12:12 patience.bbc
-rw-r--r-- 1 pi pi  1379 Mar 14  2023 server.bbc
-rw-r--r-- 1 pi pi  1245 Jun 27  2020 snake.bbc
-rw-r--r-- 1 pi pi  2131 Jan 24  2022 solve.bbc
-rw-r--r-- 1 pi pi 19333 Mar 12  2021 sortdemo.bbc
-rw-r--r-- 1 pi pi  3850 Apr 28  2024 sorttest.bbc
-rw-r--r-- 1 pi pi  2712 Jul  3  2020 speed.bbc
-rw-r--r-- 1 pi pi  4799 Nov  1  2021 sudoku.bbc
-rw-r--r-- 1 pi pi   405 Dec 17  2005 sudoku.dat
-rw-r--r-- 1 pi pi  9480 Jun 30  2021 timing.bbc
pi@raspberrypi:~/BBC_RPi_Zero_32 $ chmod 755 bbcbasic
pi@raspberrypi:~/BBC_RPi_Zero_32 $ ./bbcbasic
./bbcbasic: /lib/arm-linux-gnueabihf/libm.so.6: version `GLIBC_2.29' not found (required by ./bbcbasic)
pi@raspberrypi:~/BBC_RPi_Zero_32 $


23

BBC BASIC / Re: Console Mode editions updated to version 0.48

« Last post by John Spikowski on March 04, 2025, 02:31:48 AM »

Richard,

Does your console BASIC run on the RPI Zero W1? This board is running a 32 bit version of Raspian OS. (Debian)

If so, I would like to give your BASIC a try.

John

24

BBC BASIC / Console Mode editions updated to version 0.48

« Last post by Richard Russell on March 02, 2025, 04:43:56 PM »

I have updated the BBC BASIC Console Mode editions (BBCTTY) to version 0.48: The main changes in this version are:

• Support for array slicing has been added, using the syntax array(first TO last) or array(row, first TO last).
  
  
• Compound assignment and array arithmetic can now both use the exponentiation operator ^.
  
  
• In the default *HEX32 mode, PRINT~ and STR$~ report an error if the value cannot be expressed as 32-bit hex.
  
  
• Added median.bbc as a demonstration of array slicing (it implements the Quickselect algorithm).
  

The new version can be downloaded from the usual place.

25

BaCon / piGPIO + PICO

« Last post by admin on December 29, 2024, 01:58:30 AM »

Start of pi gpio & pico pgpio

26

BBC BASIC / Re: New: Console Mode editions of BBC BASIC

« Last post by Richard Russell on October 29, 2024, 06:13:14 PM »

I have updated the Console Mode editions of BBC BASIC to version 0.47.  The changes in this version are:

• Global integer arrays are guaranteed to be 4-byte (DWORD) aligned; previously only LOCAL arrays were forcibly aligned.
  
  
• The Raspberry Pi Pico edition now supports access to WiFi networking on the Pico W.
  
  
• The mysqllib library and mysqldem example program are supplied with the Raspberry Pi Pico edition..
  

Version 0.47 may be downloaded from the usual place.

27

BBC BASIC / BBC BASIC for SDL 2.0 version 1.40a released

« Last post by Richard Russell on July 03, 2024, 04:40:13 PM »

I have released version 1.40a of BBC BASIC for SDL 2.0 - the cross-platform programming language for Windows, Mac OS, Linux, Raspberry Pi OS, Android, iOS and in-browser.  The changes in this version are as follows:

• Environment
  
  Added a 64-bit Windows binary for direct downloading (it was always possible to build it from source).
  
  
• BASIC Interpreter / Run Time Engine
  
  Integer arrays are now guaranteed to be 32-bit aligned, even if created on the heap.
  
  Minor improvements to outline and filled circle plotting and flood fill.
  
  
• IDEs and Utilities
  
  Fixed compiler.bbc incorrectly crunching the TOP pseudo-keyword.
  
  Improved the accessibility of touchide.bbc on an Amazon Fire TV Stick.
  
  
• Libraries
  
  Modified aagfxlib.bbc to improve B?zier curves and arcs which have arrow endcap(s).
  
  Modified pdflib.bbc to support multiple-page PDFs (with thanks to Svein Svensson).
  
  
• Example Programs
  
  Added truchet.bbc and vampire.bbc in examples/graphics.
  
  Restored functionality lost from sheet.bbc when it was originally ported from BB4W.
  

This version may be downloaded, for all the supported platforms, from the usual location (the Android and iOS editions should be installed from the appropriate App Store).  The GitHub repository has also been updated.

28

BBC BASIC / BBC BASIC for SDL 2.0 version 1.39a released

« Last post by Richard Russell on February 27, 2024, 03:58:26 PM »

I have released version 1.39a of BBC BASIC for SDL 2.0 - the cross-platform programming language for Windows, Mac OS, Linux, Raspberry Pi OS, Android, iOS and in-browser.  The changes in this version are as follows:

• Environment
  
  Updated SDL2 to version 2.30.0 and SDL2_ttf to version 2.22.0 (Windows, MacOS, Android, iOS).
  
  Increased the initial value of HIMEM to 32 Mbytes above PAGE.
  
  Increased the maximum heap size, in 64-bit editions only, to 4 Gbytes (heap pointers are 32-bits so this is the largest possible size).
  
  
• BASIC Interpreter / Run Time Engine
  
  Extended VDU 19 to be able to set colours with an alpha (opacity) value.
  
  Added *FX 19 as a synonym for *REFRESH.
  
  
• IDEs and Utilities
  
  Modified the 'compiler' to support wildcards in REM!Embed directives.
  
  Modified SDLIDE for compatibility with 'self-examining' programs.
  
  
• Libraries
  
  Added PROC_slice() and PROC_redim() (etc.) to the arraylib library.
  
  Modified the gpiolib library for compatibility with 64-bit PiOS and the Raspberry Pi 5.
  
  
• Example Programs
  
  Added smithchart.bbc, an antialiased Smith Chart graticule, in examples/graphics.
  
  Added keywords.bbc, a list of one-line keyword descriptions, principally for the Android and iOS editions.
  
  Added server_multi.bbc (in examples/general, desktop editions only) which can accept up to 8 concurrent connections.
  
  Added gpiotest.bbc (in examples/general, Raspberry Pi only) to test the gpiolib library.

This version may be downloaded, for all the supported platforms, from the usual location (the Android and iOS editions should be installed from the appropriate App Store).  The GitHub repository has also been updated.

29

BBC BASIC / Re: BBC BASIC for SDL 2.0 version 1.37a released

« Last post by John Spikowski on November 19, 2023, 08:53:34 PM »

Thanks Richard for the clarification of COM/OLE support in BBC BASIC.

30

BBC BASIC / Re: BBC BASIC for SDL 2.0 version 1.37a released

« Last post by Richard Russell on November 13, 2023, 03:37:49 PM »

Does the Windows version support COM/OLE?

Yes, BBC BASIC for Windows is supplied with the COMLIB library, and that library requires only a trivial modification to run in the Windows edition of BBC BASIC for SDL 2.0 as well.

There's an example program which uses that library to access the TTS (Text To Speech) functionality in Windows, which has a COM interface.

I also know of one user who uses it to automate Microsoft Office products like Excel, using their ActiveX interface.