xemu/target/arm/vfp-uncond.decode

# AArch32 VFP instruction descriptions (unconditional insns)
#
#  Copyright (c) 2019 Linaro, Ltd
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, see <http://www.gnu.org/licenses/>.

#
# This file is processed by scripts/decodetree.py
#
# Encodings for the unconditional VFP instructions are here:
# generally anything matching A32
#  1111 1110 .... .... .... 101. ...0 ....
# and T32
#  1111 110. .... .... .... 101. .... ....
#  1111 1110 .... .... .... 101. .... ....
# (but those patterns might also cover some Neon instructions,
# which do not live in this file.)
target/arm: Add stubs for AArch32 VFP decodetree Add the infrastructure for building and invoking a decodetree decoder for the AArch32 VFP encodings. At the moment the new decoder covers nothing, so we always fall back to the existing hand-written decode. We need to have one decoder for the unconditional insns and one for the conditional insns, as otherwise the patterns for conditional insns would incorrectly match against the unconditional ones too. Since translate.c is over 14,000 lines long and we're going to be touching pretty much every line of the VFP code as part of the decodetree conversion, we create a new translate-vfp.inc.c to hold the code which deals with VFP in the new scheme. It should be possible to convert this into a standalone translation unit eventually, but the conversion process will be much simpler if we simply #include it midway through translate.c to start with. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> 2019-06-11 15:39:41 +00:00			`# AArch32 VFP instruction descriptions (unconditional insns)`
			`#`
			`# Copyright (c) 2019 Linaro, Ltd`
			`#`
			`# This library is free software; you can redistribute it and/or`
			`# modify it under the terms of the GNU Lesser General Public`
			`# License as published by the Free Software Foundation; either`
			`# version 2 of the License, or (at your option) any later version.`
			`#`
			`# This library is distributed in the hope that it will be useful,`
			`# but WITHOUT ANY WARRANTY; without even the implied warranty of`
			`# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU`
			`# Lesser General Public License for more details.`
			`#`
			`# You should have received a copy of the GNU Lesser General Public`
			`# License along with this library; if not, see <http://www.gnu.org/licenses/>.`

			`#`
			`# This file is processed by scripts/decodetree.py`
			`#`
			`# Encodings for the unconditional VFP instructions are here:`
			`# generally anything matching A32`
			`# 1111 1110 .... .... .... 101. ...0 ....`
			`# and T32`
			`# 1111 110. .... .... .... 101. .... ....`
			`# 1111 1110 .... .... .... 101. .... ....`
			`# (but those patterns might also cover some Neon instructions,`
			`# which do not live in this file.)`