xref: /gem5/src/arch/x86/isa/insts/general_purpose/arithmetic/increment_and_decrement.py

# Copyright (c) 2007 The Hewlett-Packard Development Company
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# Authors: Gabe Black

microcode = '''
def macroop INC_R
{
    addi reg, reg, 1, flags=(OF, SF, ZF, AF, PF)
};

def macroop INC_M
{
    ldst t1, seg, sib, disp
    addi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
    st t1, seg, sib, disp
};

def macroop INC_P
{
    rdip t7
    ldst t1, seg, riprel, disp
    addi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
    st t1, seg, riprel, disp
};

def macroop INC_LOCKED_M
{
    ldstl t1, seg, sib, disp
    addi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
    stul t1, seg, sib, disp
};

def macroop INC_LOCKED_P
{
    rdip t7
    ldstl t1, seg, riprel, disp
    addi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
    stul t1, seg, riprel, disp
};

def macroop DEC_R
{
    subi reg, reg, 1, flags=(OF, SF, ZF, AF, PF)
};

def macroop DEC_M
{
    ldst t1, seg, sib, disp
    subi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
    st t1, seg, sib, disp
};

def macroop DEC_P
{
    rdip t7
    ldst t1, seg, riprel, disp
    subi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
    st t1, seg, riprel, disp
};

def macroop DEC_LOCKED_M
{
    ldstl t1, seg, sib, disp
    subi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
    stul t1, seg, sib, disp
};

def macroop DEC_LOCKED_P
{
    rdip t7
    ldstl t1, seg, riprel, disp
    subi t1, t1, 1, flags=(OF, SF, ZF, AF, PF)
    stul t1, seg, riprel, disp
};
'''