sim/testsuite/d10v/t-sub2w.s

   1 # mach: all
   2 # output:
   3 # sim: --environment operating
   4
   5 .include "t-macros.i"
   6
   7         start
   8
   9 ;;  The d10v implements negated addition for subtraction
  10
  11         .macro check_sub2w s x y r c v
  12
  13         ;; clear carry
  14         ldi     r6,#0x8004
  15         mvtc    r6,cr0
  16
  17         ;; load opnds
  18         ld2w    r6, @(1f,r0)
  19         ld2w    r8, @(2f,r0)
  20         .data
  21 1:      .long   \x
  22 2:      .long   \y
  23         .text
  24
  25         ;; subtract
  26         SUB2W   r6, r8
  27
  28         ;; verify result
  29         ld2w    r10, @(1f,r0)
  30         .data
  31 1:      .long   \r
  32         .text
  33         cmpeq   r6, r10
  34         brf0f   2f
  35         cmpeq   r7, r11
  36         brf0t   3f
  37 2:      ldi     r4, 1
  38         ldi     r0, \s
  39         trap    15
  40 3:
  41
  42         ;; verify carry
  43         mvfc    r6, cr0
  44         and3    r6, r6, #1
  45         cmpeqi  r6, #\c
  46         brf0t   1f
  47         ldi     r4, 1
  48         ldi     r0, \s
  49         trap    15
  50 1:
  51         .endm
  52
  53 check_sub2w 1 0x00000000 0x00000000  0x00000000 1 0
  54 check_sub2w 2 0x00000000 0x00000001  0xffffffff 0 0
  55 check_sub2w 3 0x00000001 0x00000000  0x00000001 1 0
  56 check_sub2w 3 0x00000001 0x00000001  0x00000000 1 0
  57 check_sub2w 5 0x00000000 0x80000000  0x80000000 0 1
  58 check_sub2w 6 0x80000000 0x00000001  0x7fffffff 1 1
  59 check_sub2w 7 0x7fffffff 0x7fffffff  0x00000000 1 0
  60
  61         exit0