few ROPL examples

examples-ropl/baz.ropl

@@ -0,0 +1,11 @@
+fun main(){
+    fmt = "%d\n"
+    x = 1+1+1
+print:
+    !printf(fmt, x)
+    x = x+1
+    cmp x, 10
+    jne print
+}
+
+

examples-ropl/fib.ropl

@@ -0,0 +1,31 @@
+fun fib(n, out){
+    x = 0
+    y = 0
+
+    cmp n, 0
+    je copy
+    cmp n, 1
+    je copy
+    
+    fib(n-1, @x)
+    fib(n-2, @y)
+
+    [out] = x+y
+    jmp exit
+copy:
+    [out] = n
+exit:
+}
+
+fun main(){
+    fmt = "%d\n"
+    i = 0
+    x = 0
+print:
+    fib(i, @x)
+    !printf(fmt, x)
+    i = i+1
+    cmp i, 11
+    jne print
+}
+

examples-ropl/foo.ropl

@@ -0,0 +1,26 @@
+fun foo(){
+    x = 1;
+}
+
+fun main(){
+    one = 1
+    odd = 0
+    even = 0
+    i = 0
+    n = 10
+sum:
+    ;foo()
+    r = i & 1
+    cmp r, 1
+    je odd
+    even = even+i
+    jmp skip
+odd:
+    odd = odd+i
+skip:
+    i = i+1
+    cmp i, n
+    jne sum
+    total = odd + even
+}
+

examples-ropl/trivial.ropl

@@ -0,0 +1,4 @@
+fun main(){
+    i = 0
+}
+