BASIC IMPROVEMENTS------------------
* All of the original bugs in the ROM have been fixed
* 'K' mode has been replaced with a tokenizer. Keywords may be typed in full,
in upper or lower case, or abbreviated with a '.', e.g. 10 Pr. "Hello"
* You can move the cursor up and down in an edit line
* The current line cursor is inverted for better visibility
* The mode cursor is inverted to show up on 512x192 displays
* Line numbers 1 to 16383 are now accepted (and work on the orignal ROM too)
* The floating point library has been speeded up with unpacked constants and
Newton Raphson square roots
* At the cost of ZX Printer support, the screen printing routines are faster
* Cursor down in an INPUT line generates a STOP character
* 'E' mode is gone, except for control codes
* All symbols are entered with a two-key combinaiton, e.g. SYM+I = ©
* CLEAR performs RESTORE
* Scroll? is now in sentence case.
* ASCII characters 24-31 are now printable. No definition is provided but you
can use them if you use your own font in RAM.
* SCREEN$(x,y) can now detect UDGs as well as ASCII 32 to 127.
* Numbers can be entered in hexadecimal using '&' just as binary numbers are
entered using BIN.
* Decimal numbers in the range 0-65535 can be converted to a hex string with
'~'.
* The NMI button provides a warm reset routine unless an IF1 is connected, or
the NMIADD system variable is set to 0x0000. You can call your own routines
instead by changing the value of NMIADD.
* The RAM test has been replaced with a RAM wipe for faster initialization
* The COPY command has been overloaded to operate as a CALL command. Entering
COPY without a parameter or with 0 will have no effect. Any other value
will be called directly.
