sim/testsuite/d10v-elf/t-sub2w.s

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