diff ppc/test/sumarray.p @ 0:bfdcc3820b32

Basis
author Mike Spivey <mike@cs.ox.ac.uk>
date Thu, 05 Oct 2017 08:04:15 +0100
parents
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ppc/test/sumarray.p	Thu Oct 05 08:04:15 2017 +0100
@@ -0,0 +1,144 @@
+type vector = array 10 of integer;
+
+proc dovec(proc f(x: integer); var v: vector);
+  var i: integer;
+begin
+  i := 0;
+  while i < 10 do 
+    f(v[i]); i := i+1 
+  end
+end;
+
+proc sum(var v: vector): integer;
+  var s: integer;
+
+  proc add(x: integer);
+  begin
+    s := s + x
+  end;
+
+begin
+  s := 0;
+  dovec(add, v);
+  return s
+end;
+
+var a: vector; i: integer;
+
+begin
+  i := 0;
+  while i < 10 do
+    a[i] := (i+1)*(i+1);
+    i := i+1
+  end;
+  print_num(sum(a));
+  newline()
+end.
+
+(*<<
+385
+>>*)
+
+(*[[
+MODULE Main 0 0
+IMPORT Lib 0
+ENDHDR
+
+PROC _dovec 4 0 0
+!   i := 0;
+CONST 0
+STLW -4
+!   while i < 10 do 
+JUMP L2
+LABEL L1
+!     f(v[i]); i := i+1 
+LDLW 24
+LDLW -4
+LDIW
+LDLW 20
+LDLW 16
+PCALL 1
+LDLW -4
+CONST 1
+PLUS
+STLW -4
+LABEL L2
+LDLW -4
+CONST 10
+JLT L1
+RETURN
+END
+
+PROC _sum 4 0 0
+!   s := 0;
+CONST 0
+STLW -4
+!   dovec(add, v);
+LDLW 16
+LOCAL 0
+GLOBAL _add
+CONST 0
+GLOBAL _dovec
+PCALL 3
+!   return s
+LDLW -4
+RETURNW
+END
+
+PROC _add 0 0 0
+!     s := s + x
+LDLW 12
+LDNW -4
+LDLW 16
+PLUS
+LDLW 12
+STNW -4
+RETURN
+END
+
+PROC MAIN 0 0 0
+!   i := 0;
+CONST 0
+STGW _i
+!   while i < 10 do
+JUMP L5
+LABEL L4
+!     a[i] := (i+1)*(i+1);
+LDGW _i
+CONST 1
+PLUS
+LDGW _i
+CONST 1
+PLUS
+TIMES
+GLOBAL _a
+LDGW _i
+STIW
+!     i := i+1
+LDGW _i
+CONST 1
+PLUS
+STGW _i
+LABEL L5
+LDGW _i
+CONST 10
+JLT L4
+!   print_num(sum(a));
+GLOBAL _a
+CONST 0
+GLOBAL _sum
+PCALLW 1
+CONST 0
+GLOBAL lib.print_num
+PCALL 1
+!   newline()
+CONST 0
+GLOBAL lib.newline
+PCALL 0
+RETURN
+END
+
+GLOVAR _a 40
+GLOVAR _i 4
+! End
+]]*)