diff lab4/test/rep2.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/lab4/test/rep2.p	Thu Oct 05 08:04:15 2017 +0100
@@ -0,0 +1,66 @@
+var i: integer;
+
+proc inc(var x: integer): integer;
+begin
+  x := x+1;
+  return x
+end;
+
+begin
+  i := 0;
+  repeat until inc(i) > 10;
+  print_num(i); newline()
+end.
+
+(*<<
+11
+>>*)
+
+(*[[
+@ picoPascal compiler output
+	.include "fixup.s"
+	.global pmain
+
+@ proc inc(var x: integer): integer;
+	.text
+_inc:
+	mov ip, sp
+	stmfd sp!, {r0-r1}
+	stmfd sp!, {r4-r10, fp, ip, lr}
+	mov fp, sp
+@   x := x+1;
+	ldr r4, [fp, #40]
+	ldr r0, [r4]
+	add r0, r0, #1
+	str r0, [r4]
+@   return x
+	ldr r0, [fp, #40]
+	ldr r0, [r0]
+	ldmfd fp, {r4-r10, fp, sp, pc}
+	.ltorg
+
+pmain:
+	mov ip, sp
+	stmfd sp!, {r4-r10, fp, ip, lr}
+	mov fp, sp
+@   i := 0;
+	mov r0, #0
+	set r1, _i
+	str r0, [r1]
+.L3:
+@   repeat until inc(i) > 10;
+	set r0, _i
+	bl _inc
+	cmp r0, #10
+	ble .L3
+@   print_num(i); newline()
+	set r0, _i
+	ldr r0, [r0]
+	bl print_num
+	bl newline
+	ldmfd fp, {r4-r10, fp, sp, pc}
+	.ltorg
+
+	.comm _i, 4, 4
+@ End
+]]*)