X-Git-Url: https://hackdaworld.org/gitweb/?p=my-code%2Fatmel.git;a=blobdiff_plain;f=monolyzer%2Fport.asm;fp=monolyzer%2Fport.asm;h=d3ea5244828d24c24969b0bfc22539f4ae3263a7;hp=2e816113c66cffb2d5cc3d5880a87dcfdfeab0b4;hb=1117f788c441bc3d8caf90e5fb883e11696e1757;hpb=96c049990876625353c38ab10fd8bf0e698b3973

diff --git a/monolyzer/port.asm b/monolyzer/port.asm
index 2e81611..d3ea524 100644
--- a/monolyzer/port.asm
+++ b/monolyzer/port.asm
@@ -2,13 +2,11 @@
 
 PORT_INIT:
 
-	; port b 0-7 -> input (useless, default)
-	ldi tmp1,0x00
-	out DDRB,tmp1
+	; port d 2 -> input (useless, default)
+	cbi DDRD,2
 
-	; switch pull-up off for inputs (useless, default)
-	ldi tmp1,0x00
-	out PORTB,tmp1
+	; switch pull-up off (useless, default)
+	cbi DDRD,2
 
 	; port d pin 6 -> output
 	sbi DDRD,6
@@ -16,11 +14,37 @@ PORT_INIT:
 	; port d pin 6 -> high
 	cbi PORTD,6
 
-	; port d 2 -> output (debug 1)
-	sbi DDRD,2
-
 	; port d 3 -> output (debug 2)
 	sbi DDRD,3
 
 	ret
 
+
+INT0_IR_CONF:
+
+	; trigger interrupt on falling and rising edge
+	in tmp1,MCUCR
+	cbr tmp1,(1<<ISC01)
+	sbr tmp1,(1<<ISC00)
+	out MCUCR,tmp1
+
+	ret
+
+INT0_IR_ENABLE:
+
+	; enable interrupt
+	in tmp1,GIMSK
+	sbr tmp1,(1<<INT0)
+	out GIMSK,tmp1
+
+	ret
+
+INT0_IR_DISABLE:
+
+	; disable interrupt
+	in tmp1,GIMSK
+	cbr tmp1,(1<<INT0)
+	out GIMSK,tmp1
+
+	ret
+