basic.isa revision 2686:f0d591379ac3 
1// -*- mode:c++ -*-
2
3// Declarations for execute() methods.
4def template BasicExecDeclare {{
5        Fault execute(%(CPU_exec_context)s *, Trace::InstRecord *) const;
6}};
7
8// Basic instruction class declaration template.
9def template BasicDeclare {{
10        /**
11         * Static instruction class for "%(mnemonic)s".
12         */
13        class %(class_name)s : public %(base_class)s
14        {
15          public:
16                /// Constructor.
17                %(class_name)s(MachInst machInst);
18                %(BasicExecDeclare)s
19        };
20}};
21
22// Basic instruction class constructor template.
23def template BasicConstructor {{
24        inline %(class_name)s::%(class_name)s(MachInst machInst)  : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s)
25        {
26                %(constructor)s;
27        }
28}};
29
30
31// Basic instruction class execute method template.
32def template BasicExecute {{
33        Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const
34        {
35                Fault fault = NoFault;
36
37                %(fp_enable_check)s;
38                %(op_decl)s;
39                %(op_rd)s;
40                %(code)s;
41
42                if(fault == NoFault)
43                {
44                    %(op_wb)s;
45                }
46                return fault;
47        }
48}};
49
50// Basic decode template.
51def template BasicDecode {{
52        return new %(class_name)s(machInst);
53}};
54
55// Basic decode template, passing mnemonic in as string arg to constructor.
56def template BasicDecodeWithMnemonic {{
57        return new %(class_name)s("%(mnemonic)s", machInst);
58}};
59
60// The most basic instruction format... used only for a few misc. insts
61def format BasicOp(code, *flags) {{
62        iop = InstObjParams(name, Name, 'MipsStaticInst', CodeBlock(code), flags)
63        header_output = BasicDeclare.subst(iop)
64        decoder_output = BasicConstructor.subst(iop)
65        decode_block = BasicDecode.subst(iop)
66        exec_output = BasicExecute.subst(iop)
67}};
68