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pdp11  BBC BASIC development

30-Jan-2008: Successfully starts up
31-Jan-2008: Reads input line, but dumps core
Reading words from non-word aligned addresses
01-Feb-2008: Execution dispatch works
PRINT currently justs prints the evaluation result: type, value:
string, string length, string start or integer, b16-b31, b0-b15 or real exponent, mantissa b16-b31, b0-b15.
tty settings not set, so input echoes, and BS causes a quit
05-Feb-2008: Input doesn't echo, DEL in line input
backspaces, ESC returns escape state and returns to generate
error quitting restores tty state.
12-Feb-2008: PRINT works, including all print formatting.
Number output currently returns a dummy string.
12-Feb-2008: Forgot to demo I/O commands when could
see results. All work, but with test code removed from
PRINT, can't see results of functions.


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