emul/Makefile

@@ -1,6 +1,6 @@
 TARGETS = runbin/runbin forth/forth
 # Those Forth source files are in a particular order
-FORTHSRCS = core.fs print.fs str.fs parse.fs readln.fs fmt.fs z80a.fs
+FORTHSRCS = core.fs str.fs parse.fs readln.fs fmt.fs z80a.fs
 FORTHSRC_PATHS = ${FORTHSRCS:%=../forth/%} forth/run.fs
 OBJS = emul.o libz80/libz80.o
 SLATEST = ../tools/slatest

forth/core.fs

@@ -118,3 +118,29 @@
 ( Set up initial SYSVNXT value, which is 2 bytes after its
   own address )
 46 RAM+ DUP 2 + SWAP !
+
+: (print)
+    BEGIN
+    DUP C@   ( a c )
+    ( exit if null )
+    DUP NOT IF 2DROP EXIT THEN
+    EMIT     ( a )
+    1 +      ( a+1 )
+    AGAIN
+;
+
+: ."
+    LIT
+    BEGIN
+        C< DUP          ( c c )
+        ( 34 is ASCII for " )
+        DUP 34 = IF DROP DROP 0 0 THEN
+        C,
+    0 = UNTIL
+    COMPILE (print)
+; IMMEDIATE
+
+: ABORT" [COMPILE] ." COMPILE ABORT ; IMMEDIATE
+
+: (uflw) ABORT" stack underflow" ;
+: (wnf) ABORT" word not found" ;

forth/icore.fs

@@ -53,11 +53,7 @@
     '           ( get word )
     -^          ( apply offset )
     ,           ( write! )
-;
+; IMMEDIATE
-( We can't use IMMEDIATE because the one we've just compiled
-  in z80c target's the *target*'s RAM addr, not the host's.
-  manually set namelen field. )
-0x82 CURRENT @ 1 - C!
 
 : RAM+
     [ RAMSTART LITN ] _c +
@@ -223,10 +219,7 @@
 
 ( : and ; have to be defined last because it can't be
   executed now also, they can't have their real name
-  right away. We also can't use IMMEDIATE because the offset
+  right away )
-  used for CURRENT is the *target*'s RAM offset. we're still
-  on the host.
-)
 
 : X
     _c (entry)
@@ -242,17 +235,15 @@
     ( maybe number )
     ELSE _c (parse*) _c @ EXECUTE _c LITN THEN
     AGAIN
-;
+; IMMEDIATE
 
 : Y
     ['] EXIT _c ,
     _c R> _c DROP     ( exit : )
-;
+; IMMEDIATE
 
-( Give ":" and ";" their real name and make them IMMEDIATE )
+( Give ":" and ";" their real name )
-0x81 ' X 1 - C!
 ':' ' X 4 - C!
-0x81 ' Y 1 - C!
 ';' ' Y 4 - C!
 
 ( Add dummy entry. we use CREATE because (entry) is, at this

forth/print.fs

@@ -1,30 +0,0 @@
-( Words allowing printing strings. Require core )
-( This used to be in core, but some drivers providing EMIT
-  are much much easier to write with access to core words,
-  and these words below need EMIT... )
-
-: (print)
-    BEGIN
-    DUP C@   ( a c )
-    ( exit if null )
-    DUP NOT IF 2DROP EXIT THEN
-    EMIT     ( a )
-    1 +      ( a+1 )
-    AGAIN
-;
-
-: ."
-    LIT
-    BEGIN
-        C< DUP          ( c c )
-        ( 34 is ASCII for " )
-        DUP 34 = IF DROP DROP 0 0 THEN
-        C,
-    0 = UNTIL
-    COMPILE (print)
-; IMMEDIATE
-
-: ABORT" [COMPILE] ." COMPILE ABORT ; IMMEDIATE
-
-: (uflw) ABORT" stack underflow" ;
-: (wnf) ABORT" word not found" ;

forth/z80c.fs

@@ -313,8 +313,7 @@ CODE R>
 ;CODE
 
 CODE IMMEDIATE
-    ( CURRENT == RAM+2 )
+    CURRENT LDHL(nn),
-    RAMSTART 0x02 + LDHL(nn),
     HL DECss,
     7 (HL) SETbr,
 ;CODE
@@ -394,8 +393,7 @@ L1 FSET ( found )
 CODE SCPY
     HL POPqq,
     chkPS,
-    ( HERE == RAM+4 )
+    DE HERE LDdd(nn),
-    DE RAMSTART 0x04 + LDdd(nn),
     B 0 LDrn,
 L1 BSET ( loop )
     A (HL) LDrr,
@@ -406,7 +404,7 @@ L1 BSET ( loop )
     A ORr,
     JRNZ, L1 BWR ( loop )
     DE A LD(dd)r
-    RAMSTART 0x04 + DE LD(nn)dd,
+    HERE DE LD(nn)dd,
 ;CODE
 
 CODE (im1)