gem5  v22.1.0.0
pseudo_inst_abi.hh
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37 
38 #include "arch/x86/regs/int.hh"
39 #include "sim/guest_abi.hh"
40 
41 namespace gem5
42 {
43 
45 {
46  using State = int;
47 };
48 
49 GEM5_DEPRECATED_NAMESPACE(GuestABI, guest_abi);
50 namespace guest_abi
51 {
52 
53 template <typename T>
55 {
56  static void
57  store(ThreadContext *tc, const T &ret)
58  {
59  // This assumes that all pseudo ops have their return value set
60  // by the pseudo op instruction. This may need to be revisited if we
61  // modify the pseudo op ABI in util/m5/m5op_x86.S
62  tc->setReg(X86ISA::int_reg::Rax, ret);
63  }
64 };
65 
66 template <>
67 struct Argument<X86PseudoInstABI, uint64_t>
68 {
69  static uint64_t
71  {
72  // The first 6 integer arguments are passed in registers, the rest
73  // are passed on the stack.
74 
75  panic_if(state >= 6, "Too many psuedo inst arguments.");
76 
77  using namespace X86ISA;
78 
79  constexpr RegId int_reg_map[] = {
82  };
83 
84  return tc->getReg(int_reg_map[state++]);
85  }
86 };
87 
88 } // namespace guest_abi
89 } // namespace gem5
Register ID: describe an architectural register with its class and index.
Definition: reg_class.hh:91
ThreadContext is the external interface to all thread state for anything outside of the CPU.
virtual RegVal getReg(const RegId &reg) const
virtual void setReg(const RegId &reg, RegVal val)
#define panic_if(cond,...)
Conditional panic macro that checks the supplied condition and only panics if the condition is true a...
Definition: logging.hh:204
atomic_var_t state
Definition: helpers.cc:188
constexpr RegId R9
Definition: int.hh:195
constexpr RegId R8
Definition: int.hh:194
constexpr RegId Rsi
Definition: int.hh:138
constexpr RegId Rax
Definition: int.hh:132
constexpr RegId Rdx
Definition: int.hh:134
constexpr RegId Rdi
Definition: int.hh:139
constexpr RegId Rcx
Definition: int.hh:133
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
GEM5_DEPRECATED_NAMESPACE(GuestABI, guest_abi)
static uint64_t get(ThreadContext *tc, X86PseudoInstABI::State &state)
static void store(ThreadContext *tc, const T &ret)

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