pcat: begin structuring around words

blk/750

@@ -1 +1 @@
-1 5 LOADR+
+1 6 LOADR+

blk/753

@@ -3,6 +3,7 @@
 0xf4 OP1 HLT,        0xfc OP1 CLD,       0xfd OP1 STD,
 ( no argument, jumps with relative addrs are special )
 0xeb OP1 JMPs,       0xe9 OP1 JMPn,      0x74 OP1 JZ,
+                     0xe8 OP1 CALLn,
 : MOVri, SWAP 0xb0 OR A, A, ;
 : MOVxi, SWAP 0xb8 OR A, SPLITB A, A, ;
 : MOVsx, 0x8e A, SWAP 3 LSHIFT OR 0xc0 OR A, ;

blk/755

@@ -4,6 +4,7 @@
 : BREAK?, DUP 0x8000 AND IF
         0x7fff AND 1 ALLOT THEN, -1 ALLOT
     THEN ; )
-: AGAIN, ( BREAK?, ) PC - 1- A, ;
-: BWR @ AGAIN, ;
-
+: RPCs, PC - 1- A, ; : RPCn, PC - 2- A,, ;
+: AGAIN, ( BREAK?, ) RPCs, ;
+( Use RPCx with appropriate JMP/CALL op. Example:
+  JMPs, 0x42 RPCs, or CALLn, 0x1234 RPCn, )

blk/756

@@ -0,0 +1,4 @@
+: CODE ( same as CREATE, but with native word )
+    (entry)
+    23 C, ( 23 == nativeWord ) ;
+: ;CODE ;

blk/812

@@ -6,7 +6,7 @@ JMPn, 0 A,,   ( 00, main )     JMPn, 0 A,,   ( 03, find )
 JMPn, 0 A,, ( 0e compiledWord ) JMPn, 0 A,,  ( 11, pushRS )
 JMPn, 0 A,,   ( 14, popRS )
 JMPn, 0 A,,   ( 17, nativeWord )
-JMPn, 0 A,,   ( 1a, next )     JMPn, 0 A,,   ( 1d, chkPS )
+JMPn, 0 A,,   ( 1a, next )     JMPn, 0 A,,   ( 1d, unused )
 0 A, 0 A,     ( 20, numberWord ) 0 A, 0 A,   ( 22, litWord )
 0 A, 0 A,     ( 24, addrWord ) 0 A, 0 A,     ( 26, unused )
 0 A, 0 A,,    ( unused )

blk/813

@@ -1,3 +1,14 @@
-PC 3 - ORG @ 1+ ! ( main )
-    AH 0x0e MOVri, ( print char ) AL 'X' MOVri, 0x10 INT,
+( BOOT DICT: There are only 3 words in the boot dict, but
+  these words' offset need to be stable, so they're part of
+  the "stable ABI" )
+'E' A, 'X' A, 'I' A, 'T' A,
+0 A,, ( prev )
+4 A,
+H@ XCURRENT !        ( set current tip of dict, 0x42 )
+    0x17 A,          ( nativeWord )
     HLT,
+CODE FOO
+L1 BSET
+    AH 0x0e MOVri, ( print char ) AL 'X' MOVri, 0x10 INT,
+    L2 BSET JMPs, L2 @ RPCs,
+;CODE

blk/814

@@ -0,0 +1,2 @@
+PC 3 - ORG @ 1+ ! ( main )
+    JMPs, L1 @ RPCs,

recipes/pcat/xcomp.fs

@@ -1,4 +1,6 @@
-750 LOAD
-812 813 LOADR
+750 LOAD  ( 8086 asm )
+262 LOAD  ( xcomp )
+270 LOAD  ( xcomp overrides )
+812 814 LOADR
 ORG @ 256 /MOD 2 PC! 2 PC!
 H@ 256 /MOD 2 PC! 2 PC!