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-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
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+++ b/amforth-6.5/msp430/words/rshift.asm
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+;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