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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/msp430/words/rshift.asm
parente0d6784e89dba33226c0edb815bb974486fa7c48 (diff)
Add AmForth
Diffstat (limited to 'amforth-6.5/msp430/words/rshift.asm')
-rw-r--r--amforth-6.5/msp430/words/rshift.asm11
1 files changed, 11 insertions, 0 deletions
diff --git a/amforth-6.5/msp430/words/rshift.asm b/amforth-6.5/msp430/words/rshift.asm
new file mode 100644
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+++ b/amforth-6.5/msp430/words/rshift.asm
@@ -0,0 +1,11 @@
+;C RSHIFT x1 u -- x2 logical R shift u places
+ CODEHEADER(RSHIFT,6,"rshift")
+ MOV @PSP+,W
+ AND #1Fh,TOS ; no need to shift more than 16
+ JZ RSH_X
+RSH_1: CLRC
+ RRC W
+ SUB #1,TOS
+ JNZ RSH_1
+RSH_X: MOV W,TOS
+ NEXT