VolksForth/8080/AmstradCPC/DOUBLE.SCR

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2022-08-18 11:29:55 +00:00
\\ 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+ ;