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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/q-branch.asm
parente0d6784e89dba33226c0edb815bb974486fa7c48 (diff)
Add AmForth
Diffstat (limited to 'amforth-6.5/msp430/words/q-branch.asm')
-rw-r--r--amforth-6.5/msp430/words/q-branch.asm7
1 files changed, 7 insertions, 0 deletions
diff --git a/amforth-6.5/msp430/words/q-branch.asm b/amforth-6.5/msp430/words/q-branch.asm
new file mode 100644
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--- /dev/null
+++ b/amforth-6.5/msp430/words/q-branch.asm
@@ -0,0 +1,7 @@
+;Z ?branch x -- branch if TOS zero
+ CODEHEADER(XT_DOCONDBRANCH,7,"?branch")
+ ADD #0,TOS ; 1 test TOS value
+ MOV @PSP+,TOS ; 2 pop new TOS value (doesn't change flags)
+ JZ dobran ; 2 if TOS was zero, take the branch
+ ADD #2,IP ; 1 else skip the branch destination
+ NEXT ; 4