basicmem.isa revision 3949:b6664282d899 
1// Copyright (c) 2006 The Regents of The University of Michigan
2// All rights reserved.
3//
4// Redistribution and use in source and binary forms, with or without
5// modification, are permitted provided that the following conditions are
6// met: redistributions of source code must retain the above copyright
7// notice, this list of conditions and the following disclaimer;
8// redistributions in binary form must reproduce the above copyright
9// notice, this list of conditions and the following disclaimer in the
10// documentation and/or other materials provided with the distribution;
11// neither the name of the copyright holders nor the names of its
12// contributors may be used to endorse or promote products derived from
13// this software without specific prior written permission.
14//
15// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26//
27// Authors: Ali Saidi
28//          Gabe Black
29
30////////////////////////////////////////////////////////////////////
31//
32// Mem instructions
33//
34
35def template MemDeclare {{
36        /**
37         * Static instruction class for "%(mnemonic)s".
38         */
39        class %(class_name)s : public %(base_class)s
40        {
41          public:
42
43            /// Constructor.
44            %(class_name)s(ExtMachInst machInst);
45
46            %(BasicExecDeclare)s
47
48            %(InitiateAccDeclare)s
49
50            %(CompleteAccDeclare)s
51        };
52}};
53
54let {{
55    def doMemFormat(code, execute, faultCode, name, Name, asi, opt_flags):
56        addrCalcReg = 'EA = Rs1 + Rs2;'
57        addrCalcImm = 'EA = Rs1 + imm;'
58        iop = InstObjParams(name, Name, 'Mem',
59                {"code": code, "fault_check": faultCode,
60                 "ea_code": addrCalcReg},
61                opt_flags)
62        iop_imm = InstObjParams(name, Name + "Imm", 'MemImm',
63                {"code": code, "fault_check": faultCode,
64                 "ea_code": addrCalcImm},
65                opt_flags)
66        header_output = MemDeclare.subst(iop) + MemDeclare.subst(iop_imm)
67        decoder_output = BasicConstructor.subst(iop) + BasicConstructor.subst(iop_imm)
68        decode_block = ROrImmDecode.subst(iop)
69        exec_output = doDualSplitExecute(code, addrCalcReg, addrCalcImm,
70                execute, faultCode, name, name + "Imm",
71                Name, Name + "Imm", opt_flags)
72        return (header_output, decoder_output, exec_output, decode_block)
73}};
74
75def format LoadAlt(code, asi, *opt_flags) {{
76        (header_output,
77         decoder_output,
78         exec_output,
79         decode_block) = doMemFormat(code, LoadFuncs,
80            AlternateASIPrivFaultCheck, name, Name, asi, opt_flags)
81}};
82
83def format StoreAlt(code, asi, *opt_flags) {{
84        (header_output,
85         decoder_output,
86         exec_output,
87         decode_block) = doMemFormat(code, StoreFuncs,
88            AlternateASIPrivFaultCheck, name, Name, asi, opt_flags)
89}};
90
91def format Load(code, *opt_flags) {{
92        (header_output,
93         decoder_output,
94         exec_output,
95         decode_block) = doMemFormat(code,
96             LoadFuncs, '', name, Name, 0, opt_flags)
97}};
98
99def format Store(code, *opt_flags) {{
100        (header_output,
101         decoder_output,
102         exec_output,
103         decode_block) = doMemFormat(code,
104             StoreFuncs, '', name, Name, 0, opt_flags)
105}};
106