rc2014: Forth Collapse OS, fully operational!

forth/readln.fs

@@ -40,12 +40,14 @@
 ;
 
 ( read one char into input buffer and returns whether we
-  should continue, that is, whether newline was not met. )
+  should continue, that is, whether CR was not met. )
 : (rdlnc)                   ( -- f )
     ( buffer overflow? same as if we typed a newline )
     IN> @ IN) @ = IF 0x0a ELSE KEY THEN     ( c )
     ( del? same as backspace )
     DUP 0x7f = IF DROP 0x8 THEN
+    ( lf? same as cr )
+    DUP 0x0a = IF DROP 0xd THEN
     ( echo back )
     DUP EMIT                    ( c )
     ( bacspace? handle and exit )
@@ -57,17 +59,17 @@
       our string )
     IN> @ ! 1 IN> +!            ( c )
     ( if newline, replace with zero to indicate EOL )
-    DUP 0xa = IF DROP 0 THEN
+    DUP 0xd = IF DROP 0 THEN
 ;
 
 ( Read one line in input buffer and make IN> point to it )
 : (rdln)
     ( Should we prompt? if we're executing a word, FLAGS bit
       0, then we shouldn't. )
-    FLAGS @ 0x1 AND NOT IF LF '>' EMIT SPC THEN
+    FLAGS @ 0x1 AND NOT IF '>' EMIT SPC THEN
     (infl)
     BEGIN (rdlnc) NOT UNTIL
-    IN( @ IN> !
+    LF IN( @ IN> !
 ;
 
 ( And finally, implement a replacement for the (c<) routine )

recipes/rc2014/README.md

@@ -95,18 +95,17 @@ identify the tty bound to it (in my case, `/dev/ttyUSB0`). Then:
 
 Press the reset button on the RC2014 to have Forth begin its bootstrap process.
 Note that it has to build more than half of itself from source. It takes a
-while (TODO: indicate how many minutes).
+while about 30 seconds to complete.
 
 Once bootstrapping is done, you'll get a and you should see the Collapse OS
 prompt. That's a full Forth interpreter. You can have fun right now.
 
-However, that multi-minutes boot is kinda annoying. Moreover, that bootstrap
-code being in source form takes precious space from our 8K ROM. We already have
-our compiled dictionary in memory. All we need to have a instant-booting Forth
-is to combine our stage1 with our compiled dict in memory, after some
-relinking.
+However, that long boot time is kinda annoying. Moreover, that bootstrap code
+being in source form takes precious space from our 8K ROM. We already have our
+compiled dictionary in memory. All we need to have a instant-booting Forth is
+to combine our stage1 with our compiled dict in memory, after some relinking.
 
-TODO: write this.
+TODO: write this, do this.
 
 [rc2014]: https://rc2014.co.uk
 [romwrite]: https://github.com/hsoft/romwrite

recipes/rc2014/run.fs

@@ -1,7 +1,7 @@
 : INIT
     ACIA$
     (c<$)
-    ." Collapse OS" LF
+    ." Collapse OS" CR LF
     ( 0c == CINPTR )
     ['] (c<) 0x0c RAM+ !
 ;