xref: /gem5/src/arch/x86/isa/insts/x87/arithmetic/division.py

# Copyright (c) 2007 The Hewlett-Packard Development Company
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#
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# licensed hereunder.  You may use the software subject to the license
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# modification, are permitted provided that the following conditions are
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# this software without specific prior written permission.
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# Authors: Gabe Black

microcode = '''
def macroop FDIV1_R
{
    divfp st(0), st(0), sti
};


def macroop FDIV1_M
{
    ldfp87 ufp1, seg, sib, disp
    divfp st(0), st(0), ufp1
};

def macroop FDIV1_P
{
    rdip t7
    ldfp87 ufp1, seg, riprel, disp
    divfp st(0), st(0), ufp1
};

def macroop FDIV2_R
{
    divfp sti, sti, st(0)
};

def macroop FDIV2_M
{
    ldfp87 ufp1, seg, sib, disp
    divfp st(0), st(0), ufp1
};

def macroop FDIV2_P
{
    rdip t7
    ldfp87 ufp1, seg, riprel, disp
    divfp st(0), st(0), ufp1
};

def macroop FDIVP
{
    divfp st(1), st(1), st(0), spm=1
};

def macroop FDIVP_R
{
    divfp sti, sti, st(0), spm=1
};

def macroop FDIVP_M
{
    fault "std::make_shared<UnimpInstFault>()"
};

def macroop FDIVP_P
{
   fault "std::make_shared<UnimpInstFault>()"
};

# FIDIV
# FDIVR
# FDIVRP
# FIDIVR
'''