diff options
Diffstat (limited to 'electronics/asm/8.asm')
| -rw-r--r-- | electronics/asm/8.asm | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/electronics/asm/8.asm b/electronics/asm/8.asm new file mode 100644 index 0000000..387f4bd --- /dev/null +++ b/electronics/asm/8.asm @@ -0,0 +1,30 @@ +start: +init: + clrf PORTA ; make sure port A output latches are low + clrf PORTB ; make sure port B output latches are low + bsf STATUS, RP0 ; select memory bank 1 + movlw b'11111111' ; set port A data direction to inputs + movwf TRISA + movlw b'00000000' ; set port B data direction to outputs + movwf TRISB + bcf STATUS, RP0 ; select memory bank 0 + + bsf INTCON, INT0IE + bsf INTCON, GIE + + goto main + +interrupt: ; this will make port b go high for a set amount of time + movlw 255 + movwf PORTB + call wait1000ms + movlw 0 + movwf PORTB + + bcf INTCON, INT0IF + + retfie + +main: + goto main + END ; ends the program |