if (condition) {
then_statements
} else {
else_statements
}
translates to this AVR:
# code for condition -> R2
AND R2,R2 ; set Z bit of status register
BRBS 1, else
# code for then_statements
LDI r31, hi8(pm(end))
LDI r30, lo8(pm(end))
IJMP
else:
# code for else_statements
end: