sim/testsuite/d10v/t-subi.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_subi s x y r c v
  12         ;; clear carry
  13         ldi     r6,#0x8004
  14         mvtc    r6,cr0
  15         ;; subtract
  16         ldi     r10,#\x
  17         SUBI    r10,#\y
  18         ;; verify result
  19         ldi     r11, #\r
  20         cmpeq   r10, r11
  21         brf0t   1f
  22         ldi     r6, 1
  23         ldi     r2, \s
  24         trap    15
  25 1:
  26         ;; verify carry
  27         mvfc    r6, cr0
  28         and3    r6, r6, #1
  29         cmpeqi  r6, #\c
  30         brf0t   1f
  31         ldi     r6, 1
  32         ldi     r2, \s
  33         trap    15
  34 1:
  35         .endm
  36
  37         check_subi 1 0000  0x0000  0xfff0 00 ;;  0 - 0x10
  38         check_subi 2 0x0000  0x0001  0xffff 0 0
  39         check_subi 3 0x0001  0x0000  0xfff1 0 0
  40         check_subi 4 0x0001  0x0001  0x0000 1 0
  41         check_subi 5 0x8000  0x0001  0x7fff 1 1
  42
  43         exit0