4 ## Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
6 ## This program is free software; you can redistribute it and/or modify
7 ## it under the terms of the GNU General Public License as published by
8 ## the Free Software Foundation; either version 2 of the License, or
9 ## (at your option) any later version.
11 ## This program is distributed in the hope that it will be useful,
12 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ## GNU General Public License for more details.
16 ## You should have received a copy of the GNU General Public License
17 ## along with this program; if not, see <http://www.gnu.org/licenses/>.
26 ## Helpers for gen_helper_prototype
39 def_helper_types_pair
= {
48 def gen_def_helper_opn(f
, tag
, regtype
, regid
, toss
, numregs
, i
):
49 if (hex_common
.is_pair(regid
)):
50 f
.write(", %s" % (def_helper_types_pair
[regtype
]))
51 elif (hex_common
.is_single(regid
)):
52 f
.write(", %s" % (def_helper_types
[regtype
]))
54 print("Bad register parse: ",regtype
,regid
,toss
,numregs
)
57 ## Generate the DEF_HELPER prototype for an instruction
58 ## For A2_add: Rd32=add(Rs32,Rt32)
60 ## DEF_HELPER_3(A2_add, s32, env, s32, s32)
62 def gen_helper_prototype(f
, tag
, tagregs
, tagimms
):
68 numscalarreadwrite
= 0
69 for regtype
,regid
,toss
,numregs
in regs
:
70 if (hex_common
.is_written(regid
)):
72 if (hex_common
.is_scalar_reg(regtype
)):
74 if (hex_common
.is_readwrite(regid
)):
75 if (hex_common
.is_scalar_reg(regtype
)):
76 numscalarreadwrite
+= 1
78 if (numscalarresults
> 1):
79 ## The helper is bogus when there is more than one result
80 f
.write('DEF_HELPER_1(%s, void, env)\n' % tag
)
82 ## Figure out how many arguments the helper will take
83 if (numscalarresults
== 0):
84 def_helper_size
= len(regs
)+len(imms
)+numscalarreadwrite
+1
85 if hex_common
.need_part1(tag
): def_helper_size
+= 1
86 if hex_common
.need_slot(tag
): def_helper_size
+= 1
87 f
.write('DEF_HELPER_%s(%s' % (def_helper_size
, tag
))
88 ## The return type is void
91 def_helper_size
= len(regs
)+len(imms
)+numscalarreadwrite
92 if hex_common
.need_part1(tag
): def_helper_size
+= 1
93 if hex_common
.need_slot(tag
): def_helper_size
+= 1
94 f
.write('DEF_HELPER_%s(%s' % (def_helper_size
, tag
))
96 ## Generate the qemu DEF_HELPER type for each result
98 for regtype
,regid
,toss
,numregs
in regs
:
99 if (hex_common
.is_written(regid
)):
100 gen_def_helper_opn(f
, tag
, regtype
, regid
, toss
, numregs
, i
)
103 ## Put the env between the outputs and inputs
107 ## Generate the qemu type for each input operand (regs and immediates)
108 for regtype
,regid
,toss
,numregs
in regs
:
109 if (hex_common
.is_read(regid
)):
110 gen_def_helper_opn(f
, tag
, regtype
, regid
, toss
, numregs
, i
)
112 for immlett
,bits
,immshift
in imms
:
115 ## Add the arguments for the instruction slot and part1 (if needed)
116 if hex_common
.need_slot(tag
): f
.write(', i32' )
117 if hex_common
.need_part1(tag
): f
.write(' , i32' )
121 hex_common
.read_semantics_file(sys
.argv
[1])
122 hex_common
.read_attribs_file(sys
.argv
[2])
123 hex_common
.read_overrides_file(sys
.argv
[3])
124 hex_common
.calculate_attribs()
125 tagregs
= hex_common
.get_tagregs()
126 tagimms
= hex_common
.get_tagimms()
128 with
open(sys
.argv
[4], 'w') as f
:
129 for tag
in hex_common
.tags
:
130 ## Skip the priv instructions
131 if ( "A_PRIV" in hex_common
.attribdict
[tag
] ) :
133 ## Skip the guest instructions
134 if ( "A_GUEST" in hex_common
.attribdict
[tag
] ) :
136 ## Skip the diag instructions
137 if ( tag
== "Y6_diag" ) :
139 if ( tag
== "Y6_diag0" ) :
141 if ( tag
== "Y6_diag1" ) :
144 if ( hex_common
.skip_qemu_helper(tag
) ):
147 gen_helper_prototype(f
, tag
, tagregs
, tagimms
)
149 if __name__
== "__main__":