Project Logs

Collapse

• My Xts-uBASIC keyword set

  Franck GALLIAT • 06/19/2018 at 11:21 • 0 comments

  Hi, Here is my current BASIC Keywords set:

  AND,OR, NOT,MOD
  PRINT -----------------------> ADDED <?> shortcut
  CLS
  LIST, LLIST ,RUN
  GOTO,GOSUB,RETURN,
  REM, ------------------------> ADDED <'> shortcut
  STOP,CONT,PAUSE
  INPUT, INKEY$ // INKEY$ : non blocking key listening ....
  IF,THEN
  FOR,TO,STEP,NEXT
  VAL()
  INT(),RND() // int(1.5) -> rounds to 1 // rnd -> returns between 0.00 & 1.00
  STR$()      // STR$(1) => "1" (allows string concat)
  LEN(),      // LEN("abc") => 3 
  RIGHT$(),MID$(),LEFT$(),
  POSITION,LOCATE <COL>,<ROW>
  LET,DIM,
  
  MEM --> function that return free ammount of RAM
  SAVE,LOAD,NEW, CHAIN, DELETE
  DIR, ----------------------> ADDED optional extension filter ex: DIR ".BAS"
  DIRARRAY ------------------> Stores FS list in "DIR$" ARRAY VARIABLE
  DIRM ----------------------> show FS content for MCU#2
  
  MUTE (toggle mute buzzer)
  BEEP 100,2        : 1-48 produces some notes, direct freq. otherwise, beeps for 2*50msec
  PLAY "ABC#"       : play some notes of OCTAVE_4
  PLAYT5K & PLAYT53 : to play audio (beep) files
  
  DRAWBPP           : display a 1bpp (B/W) picture to builtin screen
  DRAWPCT           : display a 64K colors picture
  DRAWSPRT          : draw a sprite (portion of a .PCT image file)
  CIRCLE x,y,r      : draw a circle
  LINE   x,y,x2,y2  : draw a line
  PSET   x,y        : switch ON a pixel
  PRESET x,y        : switch OFF a pixel
  RECT x,y,w,h,c,m  : c : 0,1,2,3 (black,white,gray, darkGray) // m : 0,1 (draw,fill)
  TRIANGLE x,y,x,y,x,y,c,m : as same as RECT but draws a triangle
  
  BLITT x           : 0 stop blitt / 1 trigger blitt / 2 auto blitt (default mode)
  SCREEN 0/1/2	  : switch resolution (128x64, 160x128, 320x240)
  (TEXT 0/1 -> change text overlay mode)
           
  BTN(x)            : function get button state
  LED [1..3], {0,1} : switch on/off a LED
  
  ( CONSOLE <out>,<in>,<gfx> : set I/O + GFX main devices )
  ( ECHO {0;1}        : enable/disable console output )
  
  DELAY x           : wait x msec
  SECS              : function that returns nb of seconds elapsed since boot
  MILLIS            : function that returns nb of milli-seconds elapsed since boot
  
  UPPER$(str)       : function that return UPPERCASE of str
  STRING$(nbTimes, chr) : function that returns repeating string of nbTimes * CHR$(chr)
  CHR$( chr )       : function that return a char of given ASCII code
  SPACE$(nbTimes)   : function that returns repeating string of nbTimes * CHR$(32)
  ASC( str )        : returns ascii code of 1st char of str
  INSTR( str, toFind ) : returns index of 'toFind' in 'str' (else 0)
  
  ABS(x)            : return absolute value of number
  COS(x)            : return cos( x in radians)
  SIN(x)            : return sin( x in radians)
  SQRT(x)           : return square-root of x
  POW(x,y)          : return x pow y
  MIN(x,y)		  : guess
  MAX(x,y)		  : guess ...
  
  EXEC "<extCmd>", "[<extArg>]" : to launch an extended command
  DO "? 3.14"       : ~ as eval() in JS, interprets & launch a String expr.
  
  
  DATAF "file", "SZ", "A$", "B" -> feeds A$ & B arrays w/ a PSEUDO CSV file content (ex: file.BAD) of a length of SZ
  
  (DATAU "url?", "SZ", "A$", "B" -> will do as same but with an URL)
  
  (COPY "/TOTO.PCT" -> copy an asset to MCU#2 )
  
  BYE               : to reset the MCU
  HALT              : to halt the MCU & optional connected RPI

• Dual ESP32 layout explained

  Franck GALLIAT • 06/11/2018 at 11:43 • 0 comments

  I used 2x ESP32 (instead of only 1 in #Xts-uBASIC Pocket V2 ) because I needed hudge RAM to correctly manage the 320x240px Screen ops. (& ESP32 is relatively cheap & fast) so there is an UART Bridge between BOTH MCUs in order to send commands from #1 (BASIC+BEEP+BTNs+WIFI) & #2 (SCREEN + MP3Player) Then the SX1509 boards allows me to read all buttons to #1...
  

• Try to code something on my handheld

  Franck GALLIAT • 05/23/2018 at 15:28 • 0 comments

  Hi, today I'm starting to write a little RPG demo (not a real game @ this time).

  Just for the experiment & detect lags (& try to fix those)

View all 3 project logs