more work on switching to new COM and TIMER stack.

avr/timer.asm

@@ -148,6 +148,53 @@ Timer_Run_End:
 
 
 
+; ---------------------------------------------------------------------------
+; Set timer value.
+;
+; Setting a timer to 0 effectively stops the timer.
+;
+; IN:
+; - r16: new timer value (low)
+; - r17: new timer value (high)
+; - X  : pointer to timer value in SRAM
+; OUT:
+; - nothing
+; REGS: X
+
+Timer_SetValue:
+  push r15
+    in r15, SREG
+    cli
+    st X+, r16
+    st X+, r17
+    out SREG, r15
+  pop r15
+  ret
+
+
+
+; ---------------------------------------------------------------------------
+; Set timer value to 1s.
+;
+; IN:
+; - X  : pointer to timer value in SRAM
+; OUT:
+; - nothing
+; REGS: X
+
+Timer_SetValueTo1s:
+  push r16
+    push r17
+      ldi r16, 1
+      clr r17
+      rcall Timer_SetValue
+    pop r17
+  pop r16
+  ret
+
+
+
+
 timerInitTimers:
   ldi zl, LOW(timerList*2)
   ldi zh, HIGH(timerList*2)