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authorDimitri Sokolyuk <demon@dim13.org>2017-08-19 12:15:28 +0200
committerDimitri Sokolyuk <demon@dim13.org>2017-08-19 12:15:28 +0200
commit67d25d837ac55f28a366c0a3b262e439a6e75fc3 (patch)
treedf7715c7724c5935ab87c807f3b8b4ef529315e3 /amforth-6.5/avr8/lib/forth2012/core/fm-slash-mod.frt
parente0d6784e89dba33226c0edb815bb974486fa7c48 (diff)
Add AmForth
Diffstat (limited to 'amforth-6.5/avr8/lib/forth2012/core/fm-slash-mod.frt')
-rw-r--r--amforth-6.5/avr8/lib/forth2012/core/fm-slash-mod.frt22
1 files changed, 22 insertions, 0 deletions
diff --git a/amforth-6.5/avr8/lib/forth2012/core/fm-slash-mod.frt b/amforth-6.5/avr8/lib/forth2012/core/fm-slash-mod.frt
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+++ b/amforth-6.5/avr8/lib/forth2012/core/fm-slash-mod.frt
@@ -0,0 +1,22 @@
+
+
+: fm/mod ( d1 n1 -- n2 n3 )
+ dup >r
+ 2dup xor >r
+ >r
+ dabs r@ abs um/mod
+ swap r> ?negate swap
+ r> 0< if
+ negate
+ over if
+ r@ rot - swap 1-
+ then
+ then
+ r> drop
+;
+
+\ alternative solution
+\
+\ : FM/MOD \ ( d m -- r q ) signed floored division
+\ DUP >R SM/REM 2DUP 0< AND IF 1- SWAP R> + SWAP ELSE R> DROP THEN ;
+\ \ No newline at end of file