Model 100 System Map Part 4 (3FA0-5122)

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This is a derived work of the "Model 100 System Map", Copyright (C) 1985, Robert D. Covington, Systems Information Management Consultants.

3FA0H -  TIME$ ON Statement

3FB2H -  TIME$ OFF Statement

3FB9H -  TIME$ STOP Statement

3FD2H -  Trigger BASIC interrupt
               HL points to interrupt table

3FF1H -  Clear BASIC interrupt
               HL points to interrupt table

4009H -  Clear all COM, TIME, and KEY interrupt definitions
               HL, A, and B destroyed

407FH -  RESTORE Statement

409AH -  STOP Statement

409FH -  END Statement

40DAH -  CONT Statement

40F1H -  Check to see if the current character in the buffer pointed 
        to by HL is an alpha character
               HL - Points to character to check
                A - Character pointed to by HL
           C flag - Reset if character is a letter

40F2H -  Check to see if the character in A is a letter
                A - Character to check
                A - Preserved
           C flag - Reset if character is a letter

40F9H -  CLEAR Statement

4174H -  NEXT Statement

4222H -  Send CRLF to screen or printer
                A = 10

4225H -  Send LF to screen or printer
                A = 10

4229H -  BEEP Statement.  Beep computer.
                A = 7

422DH -  Home cursor
                A = 11

4231H -  CLS Statement.  Clear screen
                A = 12

4235H -  Protect line 8.  An ESC T is printed.
                A = 84

423AH -  Unprotect line 8.  An ESC U is printed.
                A = 85

423FH -  Stop automatic scrolling.  An ESC V is printed.
                A = 86

4244H -  Resume automatic scrolling.  An ESC W is printed.
                A = 87

4249H -  Turn the cursor on.  An ESC P is printed.
                A = 80

424EH -  Turn the cursor off.  An ESC Q is printed.
                A = 81

4253H -  Delete current line on screen.  An ESC M is
                A = 77

4258H -  Insert line at current line.  An ESC L is printed.
                A = 76

425DH -  Erase from cursor to end of line.  An ESC K is printed.
                A = 75

4262H -  Send ESC X
                A = 88

4269H -  Start inverse character mode.  An ESC p is printed.
                A = 112

426EH -  Cancel inverse character mode.  An ESC q is         printed.
                A = 113

4270H -  Send escape sequence
                A - Character after escape (27)

427CH -  Set the current cursor position
                L - Column (1-40)
                H - Row (1-8)
                A - Destroyed

428AH -  Erase function key display
           HL & A - Destroyed

42A5H -  Set and display function keys
               HL - Start address of function key table (see 5A7CH 
                    for the format of the table)
               All registers destroyed

42A8H -  Display function key line
               All registers destroyed
4313H -  Print the character in the A register to the screen.  This 
        routine is used by RST 20H to print characters on the screen.
                A - Character to output

4373H -  Control code routine for LCD output (RST 20H)

438AH -  Start of lookup table for RST 20H control characters.  Each 
        entry starts with the ASCII value of the character followed 
        by the two byte vector address.

43A1H -  End of special ASCII character lookup table

43AFH -  ESC Y routine (Set cursor position)

43B2H -  ESCape routine (27).  This routine puts the LCD output 
        routine into ESCape mode.  The following characters processed 
        throught the video driver will be used to determine the 
        escape sequence.

43B8H -  Start of lookup table for LCD escape sequences.  Each entry 
        starts with the one byte escape letter followed by the two 
        byte vector address.

43F9H -  End of escape vector lookup table

43FAH -  ESCape sequence processor.  This routine is used after the 
       escape mode has been enabled (see 43B2H).

4431H -  Escape p routine (start inverse video)

432H -  Escape q routine (cancel inverse video)

4437H -  Escape U routine (unprotect line 8)

4439H -  Escape T routine (protect line 8)

443FH -  Escape V routine (Stop automatic scrolling)

4440H -  Escape W routine (Resume automatic scrolling)

444AH -  Escape X routine

4453H -  Escape C routine (move cursor to the right)

445CH -  Escape D routine (move cursor to the left)

4461H -  Backspace routine (08H)

4469H -  Escape A routine (move cursor up one line)

446EH -  Escape B routine (move cursor down one line)

4480H -  Tab routine (09H)

4494H -  Linefeed routine (0AH)

44A8H -  Verticle tab (0BH) and ESC H routine (home cursor)

44AAH -  Carriage return routine (0DH)

44AFH -  Escape P routine (turn cursor on)

44BAH -  Escape Q routine (turn cursor off)

44C4H -  Escape M routine

44EAH -  Escape L routine (insert line on screen)

4535H -  Escape l routine (erase current cursor line)

4537H -  Escape K routine (erase from cursor to the end of the screen)

4548H -  Form feed (0CH), CLS, ESC E, and ESC j routine

454EH -  Escape J routine

463EH -  Input line and place at F685H.  Print characters as they are 
        entered.  Start input with a "? ".
            F685H - Text input from keyboard
               HL - Loaded with F685H
           C flag - Set if input aborted by a control C

4644H -  Same as 463EH but no "? " is printed.

4684H -  Input routine 463EH Control C handler

4696H -  Input routine 463EH ENTER handler

46A0H -  Input routine 463EH backspace, left arrow, control H handler

46C3H -  Input routine 463EH Control U & X handler

46CAH -  Input routine 463EH Tab handler

478BH -  DIM Statement

4790H -  Find the address of the variable in the buffer pointed to by 
        HL.  This routine returns the same result as BASIC's VARPTR 
               HL - Points to the buffer containing the variable name
               HL - Incremented past variable name
               DE - Address of variable descriptor table (like VARPTR)
          (FB65H) - Variable type

4991H -  USING Function

4B44H -  Vector of RST 20H.  Send the character in A to the screen or 
        printer (see RST 20H).

4B55H -  Print the character in the A register on the printer.  Expand 
        tabs into spaces if nescessary.
                A - Character to output

4B92H -  Reinitialize screen back to the LCD.  This routine sends a CR 
        to the printer if needed to empty the print buffer on the 

4BABH -  LCD character output routine
                A - Character to output

4BB8H -  Send a CRLF to screen if needed to end the current line.  
        This routine assures that the next text printed on the screen 
        will start at the beginning of a line.
                A - Destroyed

4BEAH -  INKEY$ Function

4C84H -  Get information for the file number in the A register.  This 
        routine performs the same as VARPTR(#x).  If A is greater 
        than MAXFILES, a BN error is generated.
                A - File number (1-maxfiles)
               HL - Points to file number descriptor table (see 
           Z flag - Set if file is not already opened

4CCBH -  OPEN Statement

4D59H -  LCD, CRT, and LPT file close routine

4D6EH -  RUN statement with text following the RUN

4D70H -  LOAD Statement

4D71H -  MERGE Statement

4DCFH -  SAVE Statement

4E28H -  CLOSE Statement

4E8EH -  INPUT$ Function

4F0AH -  Zero the memory starting at HL for B number of bytes
               HL - Start of buffer to zero
                B - Number of bytes to zero
               HL - Incremented past last byte zeroed
                A = 0
                B = 0

4F0BH -  Fill the memory starting at HL with the byte in the A 
        register for B number of bytes
               HL - Start of buffer to fill
                A - Character to fill buffer with
                B - Number of bytes to fill
               HL - Incremented past last byte filled
                B = 0

4F2EH -  Routine called by the PRINT statement to initialize a PRINT #.

4F5BH -  LINE INPUT # statement

504EH -  Generate NM error

5051H -  Generate AO error

5054H -  Generate DS error

5057H -  Generate FF error

505AH -  Generate CF error

505DH -  Generate BN error

5060H -  Generate IE error

5063H -  Generate EF error

5066H -  Generate FL error

506BH -  LOF Function

506DH -  LOC Function

506FH -  LFILES Function

5071H -  DSKO$ Function

5073H -  DSKI$ Function

50F1H -  Start of device name table.  Each entry starts with the text 
        name of the device ending with a FFH.

5112H -  End of device name table

5113H -  Start of device control block vector addresses.  Each two 
        byte pointer corresponds to the name in the device name table 
        at 50F1H.  This pointer points to the device's DCB which 
        contains the vectors for device open, close, output, and 

5122H -  End of device control block vector addresses