Move core's readln to xcomp core (high)

blk/420

@@ -1 +1 @@
-1 7 LOADR+ ( xcomp core high )
+1 12 LOADR+ ( xcomp core high )

blk/426

@@ -1,14 +1,12 @@
-( LITN has to be defined after the last immediate usage of
-  it to avoid bootstrapping issues )
-: LITN 32 , , ( 32 == NUMBER ) ;
+: RDLNMEM+ 0x57 RAM+ @ + ;
+( current position in INBUF )
+: IN> 0 RDLNMEM+ ;
+( points to INBUF )
+: IN( 2 RDLNMEM+ ;
+( points to INBUF's end )
+: IN) 0x40 ( buffer size ) 2+ RDLNMEM+ ;
 
-: IMMED? 1- C@ 0x80 AND ;
-
-( ';' can't have its name right away because, when created, it
-  is not an IMMEDIATE yet and will not be treated properly by
-  xcomp. )
-: _
-    ['] EXIT ,
-    R> DROP     ( exit : )
-; IMMEDIATE
+( flush input buffer )
+( set IN> to IN( and set IN> @ to null )
+: (infl) 0 IN( DUP IN> ! ! ;
 

blk/427

@@ -1,16 +1,16 @@
-XCURRENT @ ( to PSP )
-: :
-    (entry)
-    ( We cannot use LITN as IMMEDIATE because of bootstrapping
-      issues. Same thing for ",".
-      32 == NUMBER 14 == compiledWord )
-    [ 32 H@ ! 2 ALLOT 14 H@ ! 2 ALLOT ] C,
-    BEGIN
-        WORD
-        (find)
-        ( is word )
-        IF DUP IMMED? IF EXECUTE ELSE , THEN
-        ( maybe number )
-        ELSE (parse) LITN THEN
-    AGAIN ;
-( from PSP ) ';' SWAP 4 - C!
+( handle backspace: go back one char in IN>, if possible, then
+  emit SPC + BS )
+: (inbs)
+    ( already at IN( ? )
+    IN> @ IN( = IF EXIT THEN
+    IN> @ 1- IN> !
+    SPC BS
+;
+
+: KEY
+    85 RAM+ @ ( (key) override )
+    DUP IF EXECUTE ELSE DROP (key) THEN ;
+
+
+( cont.: read one char into input buffer and returns whether we
+  should continue, that is, whether CR was not met. )

blk/451 → blk/430

@@ -2,11 +2,11 @@
 : RDLN$
     ( 57 == rdln's memory )
     H@ 0x57 RAM+ !
-    ( 2 for IN>, plus 2 for extra bytes after buffer: 1 for
+    ( plus 2 for extra bytes after buffer: 1 for
       the last typed 0x0a and one for the following NULL. )
-    INBUFSZ 4 + ALLOT
+    IN) IN> - 2+ ALLOT
     (infl)
-    ['] RDLN< 0x0c RAM+ !
+    LIT< RDLN< (find) DROP 0x0c RAM+ !
     1 0x06 RAM+ !  ( 06 == C<? )
 ;
 

blk/431

@@ -0,0 +1,14 @@
+( LITN has to be defined after the last immediate usage of
+  it to avoid bootstrapping issues )
+: LITN 32 , , ( 32 == NUMBER ) ;
+
+: IMMED? 1- C@ 0x80 AND ;
+
+( ';' can't have its name right away because, when created, it
+  is not an IMMEDIATE yet and will not be treated properly by
+  xcomp. )
+: _
+    ['] EXIT ,
+    R> DROP     ( exit : )
+; IMMEDIATE
+

blk/432

@@ -0,0 +1,16 @@
+XCURRENT @ ( to PSP )
+: :
+    (entry)
+    ( We cannot use LITN as IMMEDIATE because of bootstrapping
+      issues. Same thing for ",".
+      32 == NUMBER 14 == compiledWord )
+    [ 32 H@ ! 2 ALLOT 14 H@ ! 2 ALLOT ] C,
+    BEGIN
+        WORD
+        (find)
+        ( is word )
+        IF DUP IMMED? IF EXECUTE ELSE , THEN
+        ( maybe number )
+        ELSE (parse) LITN THEN
+    AGAIN ;
+( from PSP ) ';' SWAP 4 - C!

blk/447

@@ -1,13 +0,0 @@
-64 CONSTANT INBUFSZ
-: RDLNMEM+ 0x57 RAM+ @ + ;
-( current position in INBUF )
-: IN> 0 RDLNMEM+ ;
-( points to INBUF )
-: IN( 2 RDLNMEM+ ;
-( points to INBUF's end )
-: IN) INBUFSZ 2+ RDLNMEM+ ;
-
-( flush input buffer )
-( set IN> to IN( and set IN> @ to null )
-: (infl) 0 IN( DUP IN> ! ! ;
-

blk/448

@@ -1,16 +0,0 @@
-( handle backspace: go back one char in IN>, if possible, then
-  emit SPC + BS )
-: (inbs)
-    ( already at IN( ? )
-    IN> @ IN( = IF EXIT THEN
-    IN> @ 1- IN> !
-    SPC BS
-;
-
-: KEY
-    85 RAM+ @ ( (key) override )
-    DUP IF EXECUTE ELSE DROP (key) THEN ;
-
-
-( cont.: read one char into input buffer and returns whether we
-  should continue, that is, whether CR was not met. )