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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/common/words/map-stack.asm
parente0d6784e89dba33226c0edb815bb974486fa7c48 (diff)
Add AmForth
Diffstat (limited to 'amforth-6.5/common/words/map-stack.asm')
-rw-r--r--amforth-6.5/common/words/map-stack.asm61
1 files changed, 61 insertions, 0 deletions
diff --git a/amforth-6.5/common/words/map-stack.asm b/amforth-6.5/common/words/map-stack.asm
new file mode 100644
index 0000000..48995a1
--- /dev/null
+++ b/amforth-6.5/common/words/map-stack.asm
@@ -0,0 +1,61 @@
+; ( i*x XT e-addr -- j*y true | i*x false )
+; Tools
+; Iterate over a stack
+
+.if cpu_msp430==1
+ HEADER(XT_MAPSTACK,9,"map-stack",DOCOLON)
+.endif
+
+.if cpu_avr8==1
+VE_MAPSTACK:
+ .dw $ff09
+ .db "map-stack",0
+ .dw VE_HEAD
+ .set VE_HEAD = VE_MAPSTACK
+XT_MAPSTACK:
+ .dw DO_COLON
+PFA_MAPSTACK:
+.endif
+ .dw XT_DUP
+ .dw XT_CELLPLUS
+ .dw XT_SWAP
+ .dw XT_FETCHE
+ .dw XT_CELLS
+ .dw XT_BOUNDS
+ .dw XT_QDOCHECK
+ .dw XT_DOCONDBRANCH
+ DEST(PFA_MAPSTACK3)
+ .dw XT_DODO
+PFA_MAPSTACK1:
+ .dw XT_I
+ .dw XT_FETCHE ; -- i*x XT id
+ .dw XT_SWAP
+ .dw XT_TO_R
+ .dw XT_R_FETCH
+ .dw XT_EXECUTE ; i*x id -- j*y true | i*x false
+ .dw XT_QDUP
+ .dw XT_DOCONDBRANCH
+ DEST(PFA_MAPSTACK2)
+ .dw XT_R_FROM
+ .dw XT_DROP
+ .dw XT_UNLOOP
+ .dw XT_EXIT
+PFA_MAPSTACK2:
+ .dw XT_R_FROM
+ .dw XT_TWO
+ .dw XT_DOPLUSLOOP
+ DEST(PFA_MAPSTACK1)
+PFA_MAPSTACK3:
+ .dw XT_DROP
+ .dw XT_ZERO
+ .dw XT_EXIT
+
+;
+; : map-stack ( i*x XT e-addr -- j*y )
+; dup cell+ swap @e cells bounds ?do
+; ( -- i*x XT )
+; i @e swap >r r@ execute
+; ?dup if r> drop unloop exit then
+; r>
+; 2 +loop drop 0
+; ;