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Diffstat (limited to 'amforth-6.5/avr8/devices/atmega325a/words/sleep.asm')
-rw-r--r--amforth-6.5/avr8/devices/atmega325a/words/sleep.asm19
1 files changed, 19 insertions, 0 deletions
diff --git a/amforth-6.5/avr8/devices/atmega325a/words/sleep.asm b/amforth-6.5/avr8/devices/atmega325a/words/sleep.asm
new file mode 100644
index 0000000..256249c
--- /dev/null
+++ b/amforth-6.5/avr8/devices/atmega325a/words/sleep.asm
@@ -0,0 +1,19 @@
+; ( mode -- )
+; MCU
+; put the controller into the specified sleep mode
+VE_SLEEP:
+ .dw $ff05
+ .db "sleep", 0
+ .dw VE_HEAD
+ .set VE_HEAD = VE_SLEEP
+XT_SLEEP:
+ .dw PFA_SLEEP
+PFA_SLEEP:
+ andi tosl, 7 ; leave only legal mode bits
+ lsl tosl ; move to correct location (bits 3-1)
+ ori tosl, 1 ; set the SE bit
+ out_ SMCR, tosl ; set the sleep config
+ sleep ; nighty-night
+ out_ SMCR, zerol ; 0 protects against accidental sleeps
+ loadtos ; pop argument from stack
+ jmp_ DO_NEXT