aboutsummaryrefslogtreecommitdiff
path: root/amforth-6.5/avr8/words/plusstore.asm
diff options
context:
space:
mode:
Diffstat (limited to 'amforth-6.5/avr8/words/plusstore.asm')
-rw-r--r--amforth-6.5/avr8/words/plusstore.asm21
1 files changed, 21 insertions, 0 deletions
diff --git a/amforth-6.5/avr8/words/plusstore.asm b/amforth-6.5/avr8/words/plusstore.asm
new file mode 100644
index 0000000..344670b
--- /dev/null
+++ b/amforth-6.5/avr8/words/plusstore.asm
@@ -0,0 +1,21 @@
+; ( n a-addr -- )
+; Arithmetics
+; add n to content of RAM address a-addr
+VE_PLUSSTORE:
+ .dw $ff02
+ .db "+!"
+ .dw VE_HEAD
+ .set VE_HEAD = VE_PLUSSTORE
+XT_PLUSSTORE:
+ .dw PFA_PLUSSTORE
+PFA_PLUSSTORE:
+ movw zl, tosl
+ loadtos
+ ldd temp2, Z+0
+ ldd temp3, Z+1
+ add tosl, temp2
+ adc tosh, temp3
+ std Z+0, tosl
+ std Z+1, tosh
+ loadtos
+ jmp_ DO_NEXT