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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/avr8/words/rot.asm
parente0d6784e89dba33226c0edb815bb974486fa7c48 (diff)
Add AmForth
Diffstat (limited to 'amforth-6.5/avr8/words/rot.asm')
-rw-r--r--amforth-6.5/avr8/words/rot.asm22
1 files changed, 22 insertions, 0 deletions
diff --git a/amforth-6.5/avr8/words/rot.asm b/amforth-6.5/avr8/words/rot.asm
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+++ b/amforth-6.5/avr8/words/rot.asm
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+; ( n1 n2 n3 -- n2 n3 n1)
+; Stack
+; rotate the three top level cells
+VE_ROT:
+ .dw $ff03
+ .db "rot",0
+ .dw VE_HEAD
+ .set VE_HEAD = VE_ROT
+XT_ROT:
+ .dw PFA_ROT
+PFA_ROT:
+ movw temp0, tosl
+ ld temp2, Y+
+ ld temp3, Y+
+ loadtos
+
+ st -Y, temp3
+ st -Y, temp2
+ st -Y, temp1
+ st -Y, temp0
+
+ jmp_ DO_NEXT