aboutsummaryrefslogtreecommitdiff
path: root/amforth-6.5/msp430/words/qdup.asm
diff options
context:
space:
mode:
Diffstat (limited to 'amforth-6.5/msp430/words/qdup.asm')
-rw-r--r--amforth-6.5/msp430/words/qdup.asm5
1 files changed, 5 insertions, 0 deletions
diff --git a/amforth-6.5/msp430/words/qdup.asm b/amforth-6.5/msp430/words/qdup.asm
new file mode 100644
index 0000000..2bb9eb0
--- /dev/null
+++ b/amforth-6.5/msp430/words/qdup.asm
@@ -0,0 +1,5 @@
+;C ?DUP x -- 0 | x x DUP if nonzero
+ CODEHEADER(XT_QDUP,4,"?dup")
+ CMP #0,TOS ; 1 test for TOS nonzero
+ JNZ PUSHTOS ; 2
+NODUP: NEXT ; 4