VolksForth/8080/CPM/double.fb

\\ Double words                                          11Nov86                                                                Dieses File enthaelt Worte fuer 32-Bit Objekte.                                                                                 Im Kern bereits enthalten sind:                                                                                                    2@ 2! 2dup 2drop 2swap dnegate d+                                                                                            Hier werden definiert:                                                                                                             2Variable 2Constant 2over d*                                                                                                                                                                                                                                                                                                                                                                 \ 2over  2@  2! 2Variable 2Constant                   UH 30Oct86                                                                : 2Variable   Variable  2 allot ;                               : 2Constant   Create , ,  does>  2@ ;                                                                                           Code 2over   ( 32b1 32b2  -- 32b1 32b2 32b1 )  7 H lxi             SP dad    M D mov   H dcx   M E mov  D push                     H dcx     M D mov   H dcx   M E mov  D push Next   end-code  --> \\                                                          Code 2@   ( addr -- 32b )   H pop   H push                         H inx  H inx   M E mov   H inx   M D mov   H pop   D push       M E mov   H inx   M D mov  D push    Next   end-code                                                                         Code 2!   ( 32b addr -- )   H pop                                  D pop    E M mov   H inx   D M mov   H inx                      D pop    E M mov   H inx   D M mov   Next   end-code         \ d* d-                                                  29Jun86                                                                : d*   ( d1 d2 -- d1*d2 )                                           rot  2over  rot  um*  2swap um* d+ 2swap um* d+ ;                                                                           : d-  ( d1 d2 -- d1-d2 ) dnegate d+ ;