gas/testsuite/gas/msp430/nop-int.s

   1   .text
   2
   3 ;;; Test some common instruction patterns for disabling/enabling interrupts.
   4 ;;; "MOV &FOO,r10" is used as an artbitrary statement which isn't a NOP, to
   5 ;;; break up the instructions being tested.
   6
   7 fn1:
   8 ;;; 1: Test EINT
   9 ;; 430 ISA: NOP *not* required before *or* after EINT
  10 ;; 430x ISA: NOP *is* required before *and* after EINT
  11   MOV &FOO,r10
  12
  13   EINT
  14
  15   MOV &FOO,r10
  16
  17   BIS.W #8,SR           ; Alias for EINT
  18
  19   MOV &FOO,r10
  20 ;;; 2: Test DINT
  21 ;; 430 ISA: NOP *is* required after DINT
  22 ;; 430x ISA: NOP *is* required after DINT
  23   MOV &FOO,r10
  24
  25   DINT
  26   NOP
  27
  28   MOV &FOO,r10
  29
  30   BIC.W #8,SR           ; Alias for DINT
  31   NOP
  32
  33   MOV &FOO,r10
  34 ;;; 3: Test EINT immediately before DINT
  35 ;; 430 ISA: NOP *not* required.
  36 ;; 430x ISA: NOP *is* required between EINT and DINT
  37   MOV &FOO,r10
  38
  39   NOP
  40   EINT
  41   DINT
  42   NOP
  43
  44   MOV &FOO,r10
  45
  46   NOP
  47   BIS.W #8,SR           ; Alias for EINT
  48   BIC.W #8,SR           ; Alias for DINT
  49   NOP
  50
  51   MOV &FOO,r10
  52 ;;; 4: Test DINT immediately before EINT
  53 ;; 430 ISA: NOP *is* required after DINT.
  54 ;; 430x ISA: NOP *is* required after DINT and before EINT. Ensure only one
  55 ;; warning is emitted.
  56   MOV &FOO,r10
  57
  58   NOP
  59   DINT
  60   EINT
  61   NOP
  62
  63   MOV &FOO,r10
  64
  65   BIC.W #8,SR           ; Alias for DINT
  66   BIS.W #8,SR           ; Alias for EINT
  67   NOP
  68
  69   MOV &FOO,r10
  70
  71 ;;; 5: Test EINT last insn in file
  72
  73   NOP
  74   EINT