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1 /* Machine description for Visium.
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2 Copyright (C) 2014-2018 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 3, or (at your option)
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9 any later version.
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10
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11 GCC is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with GCC; see the file COPYING3. If not see
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18 <http://www.gnu.org/licenses/>. */
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19
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20 /* Add any extra modes needed to represent the condition code.
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21
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22 We have a CCNZ mode which is used for implicit comparisons with zero when
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23 arithmetic instructions set the condition code. Only the N and Z flags
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24 are valid in this mode, which means that only the =,!= and <,>= operators
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25 can be used in conjunction with it.
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26
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27 We also have a CCCmode which is used by the arithmetic instructions when
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28 they explicitly set the C flag (unsigned overflow) and by the bit-test
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29 instruction. Only the =,!= and unsigned <,>= operators can be used in
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30 conjunction with it.
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31
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32 We also have a CCVmode which is used by the arithmetic instructions when
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33 they explicitly set the V flag (signed overflow). Only the =,!= operators
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34 can be used in conjunction with it.
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35
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36 We also have two modes to indicate that the condition code is set by the
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37 the floating-point unit. One for comparisons which generate an exception
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38 if the result is unordered (CCFPEmode) and one for comparisons which never
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39 generate such an exception (CCFPmode). */
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40
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41 CC_MODE (CCNZ);
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42 CC_MODE (CCC);
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43 CC_MODE (CCV);
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44 CC_MODE (CCFP);
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45 CC_MODE (CCFPE);
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