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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/up.asm
parente0d6784e89dba33226c0edb815bb974486fa7c48 (diff)
Add AmForth
Diffstat (limited to 'amforth-6.5/avr8/words/up.asm')
-rw-r--r--amforth-6.5/avr8/words/up.asm29
1 files changed, 29 insertions, 0 deletions
diff --git a/amforth-6.5/avr8/words/up.asm b/amforth-6.5/avr8/words/up.asm
new file mode 100644
index 0000000..0edfc01
--- /dev/null
+++ b/amforth-6.5/avr8/words/up.asm
@@ -0,0 +1,29 @@
+; ( -- addr )
+; System Variable
+; get user area pointer
+VE_UP_FETCH:
+ .dw $ff03
+ .db "up@",0
+ .dw VE_HEAD
+ .set VE_HEAD = VE_UP_FETCH
+XT_UP_FETCH:
+ .dw PFA_UP_FETCH
+PFA_UP_FETCH:
+ savetos
+ movw tosl, upl
+ jmp_ DO_NEXT
+
+; ( addr -- )
+; System Variable
+; set user area pointer
+VE_UP_STORE:
+ .dw $ff03
+ .db "up!",0
+ .dw VE_HEAD
+ .set VE_HEAD = VE_UP_STORE
+XT_UP_STORE:
+ .dw PFA_UP_STORE
+PFA_UP_STORE:
+ movw upl, tosl
+ loadtos
+ jmp_ DO_NEXT