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

   1 .include "t-macros.i"
   2
   3         start
   4
   5 ;;  The d10v implements negated addition for subtraction
   6
   7         .macro check_subi s x y r c v
   8         ;; clear carry
   9         ldi     r6,#0x8004
  10         mvtc    r6,cr0
  11         ;; subtract
  12         ldi     r10,#\x
  13         SUBI    r10,#\y
  14         ;; verify result
  15         ldi     r11, #\r
  16         cmpeq   r10, r11
  17         brf0t   1f
  18         ldi     r6, 1
  19         ldi     r2, \s
  20         trap    15
  21 1:
  22         ;; verify carry
  23         mvfc    r6, cr0
  24         and3    r6, r6, #1
  25         cmpeqi  r6, #\c
  26         brf0t   1f
  27         ldi     r6, 1
  28         ldi     r2, \s
  29         trap    15
  30 1:
  31         .endm
  32
  33         check_subi 1 0000  0x0000  0xfff0 00 ;;  0 - 0x10
  34         check_subi 2 0x0000  0x0001  0xffff 0 0
  35         check_subi 3 0x0001  0x0000  0xfff1 0 0
  36         check_subi 4 0x0001  0x0001  0x0000 1 0
  37         check_subi 5 0x8000  0x0001  0x7fff 1 1
  38
  39         exit0