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-rw-r--r--amforth-6.5/msp430/words/m-star.asm8
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diff --git a/amforth-6.5/msp430/words/m-star.asm b/amforth-6.5/msp430/words/m-star.asm
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+;C M* n1 n2 -- d signed 16*16->32 multiply
+; 2DUP XOR >R carries sign of the result
+; XT_SWAP ABS SWAP ABS UM*
+; R> ?DNEGATE ;
+ HEADER(XT_MSTAR,2,"m*",DOCOLON)
+ DW XT_2DUP,XT_XOR,XT_TO_R
+ DW XT_SWAP,XT_ABS,XT_SWAP,XT_ABS,XT_UMSTAR
+ DW XT_R_FROM,XT_QDNEGATE,XT_EXIT