gem5  v21.2.0.0
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->setIntReg(X86ISA::INTREG_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  const int int_reg_map[] = {
80  INTREG_RDI, INTREG_RSI, INTREG_RDX,
81  INTREG_RCX, INTREG_R8, INTREG_R9
82  };
83 
84  return tc->readIntReg(int_reg_map[state++]);
85  }
86 };
87 
88 } // namespace guest_abi
89 } // namespace gem5
gem5::ThreadContext::setIntReg
virtual void setIntReg(RegIndex reg_idx, RegVal val)=0
gem5::X86PseudoInstABI::State
int State
Definition: pseudo_inst_abi.hh:46
gem5::guest_abi::Result< X86PseudoInstABI, T >::store
static void store(ThreadContext *tc, const T &ret)
Definition: pseudo_inst_abi.hh:57
gem5::X86PseudoInstABI
Definition: pseudo_inst_abi.hh:44
gem5::ThreadContext
ThreadContext is the external interface to all thread state for anything outside of the CPU.
Definition: thread_context.hh:94
int.hh
gem5::guest_abi::Argument< X86PseudoInstABI, uint64_t >::get
static uint64_t get(ThreadContext *tc, X86PseudoInstABI::State &state)
Definition: pseudo_inst_abi.hh:70
gem5::ThreadContext::readIntReg
virtual RegVal readIntReg(RegIndex reg_idx) const =0
gem5::GEM5_DEPRECATED_NAMESPACE
GEM5_DEPRECATED_NAMESPACE(GuestABI, guest_abi)
panic_if
#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
guest_abi.hh
gem5::guest_abi::Argument
Definition: definition.hh:99
gem5::guest_abi::Result
Definition: definition.hh:64
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition: tlb.cc:60

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