src/arch/x86/isa/insts/x87/arithmetic/addition.py

   1 # Copyright (c) 2007 The Hewlett-Packard Development Company
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   8 # licensed hereunder.  You may use the software subject to the license
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  14 # modification, are permitted provided that the following conditions are
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  20 # neither the name of the copyright holders nor the names of its
  21 # contributors may be used to endorse or promote products derived from
  22 # this software without specific prior written permission.
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  24 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  25 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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  34 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35 #
  36 # Authors: Gabe Black
  37
  38 microcode = '''
  39 def macroop FADD1_R
  40 {
  41     addfp st(0), sti, st(0)
  42 };
  43
  44
  45 def macroop FADD1_M
  46 {
  47     ldfp ufp1, seg, sib, disp
  48     addfp st(0), st(0), ufp1
  49 };
  50
  51 def macroop FADD1_P
  52 {
  53     rdip t7
  54     ldfp ufp1, seg, riprel, disp
  55     addfp st(0), st(0), ufp1
  56 };
  57
  58 def macroop FADD2_R
  59 {
  60     addfp sti, sti, st(0)
  61 };
  62
  63 def macroop FADD2_M
  64 {
  65     ldfp ufp1, seg, sib, disp
  66     addfp st(0), st(0), ufp1
  67 };
  68
  69 def macroop FADD2_P
  70 {
  71     rdip t7
  72     ldfp ufp1, seg, riprel, disp
  73     addfp st(0), st(0), ufp1
  74 };
  75
  76 def macroop FADDP
  77 {
  78     addfp st(1), st(0), st(1), spm=1
  79 };
  80
  81 def macroop FADDP_R
  82 {
  83     addfp sti, sti, st(0), spm=1
  84 };
  85
  86 def macroop FADDP_M
  87 {
  88     fault "new UnimpInstFault"
  89 };
  90
  91 def macroop FADDP_P
  92 {
  93    fault "new UnimpInstFault"
  94 };
  95
  96 # FIADD
  97 '''