EBP:  "BP",
	ESI:  "SI",
	EDI:  "DI",
	R8L:  "R8",
	R9L:  "R9",
	R10L: "R10",
	R11L: "R11",
	R12L: "R12",
	R13L: "R13",
	R14L: "R14",
	R15L: "R15",
	RAX:  "AX",
	RCX:  "CX",
	RDX:  "DX",
	RBX:  "BX",
	RSP:  "SP",
	RBP:  "BP",
	RSI:  "SI",
	RDI:  "DI",
	R8:   "R8",
	R9:   "R9",
	R10:  "R10",
	R11:  "R11",
	R12:  "R12",
	R13:  "R13",
	R14:  "R14",
	R15:  "R15",

type Reg struct {
	R15    int64
	R14    int64
	R13    int64
	R12    int64
	R11    int64
	R10    int64
	R9     int64
	R8     int64
	Rdi    int64
	Rsi    int64
	Rbp    int64
	Rbx    int64
	Rdx    int64
	Rcx    int64
	Rax    int64
	Trapno uint32
	Fs     uint16
	Gs     uint16
	Err    uint32
	Es     uint16
	Ds     uint16
	Rip    int64
	Cs     int64
	Rflags int64
	Rsp    int64

	R14      uint64
	R13      uint64
	R12      uint64
	Rbp      uint64
	Rbx      uint64
	R11      uint64
	R10      uint64
	R9       uint64
	R8       uint64
	Rax      uint64
	Rcx      uint64
	Rdx      uint64
	Rsi      uint64
	Rdi      uint64
	Orig_rax uint64
	Rip      uint64
	Cs       uint64
	Eflags   uint64
	Rsp      uint64
	Ss       uint64
	Fs_base  uint64
	Gs_base  uint64

	EDI:  "%edi",
	R8L:  "%r8d",
	R9L:  "%r9d",
	R10L: "%r10d",
	R11L: "%r11d",
	R12L: "%r12d",
	R13L: "%r13d",
	R14L: "%r14d",
	R15L: "%r15d",
	RAX:  "%rax",
	RCX:  "%rcx",
	RDX:  "%rdx",
	RBX:  "%rbx",
	RSP:  "%rsp",
	RBP:  "%rbp",
	RSI:  "%rsi",
	RDI:  "%rdi",
	R8:   "%r8",
	R9:   "%r9",
	R10:  "%r10",
	R11:  "%r11",
	R12:  "%r12",
	R13:  "%r13",
	R14:  "%r14",

	xArgR64M16       // arg r64/m16
	xArgR64op        // arg r64 with +rd in opcode
	xArgR8           // arg r8
	xArgR8op         // arg r8 with +rb in opcode
	xArgRAX          // arg RAX
	xArgRDX          // arg RDX
	xArgRM           // arg r/m
	xArgRM16         // arg r/m16
	xArgRM32         // arg r/m32
	xArgRM64         // arg r/m64
	xArgRM8          // arg r/m8
	xArgReg          // arg reg

	// invoke INT3. The debugger should write the argument
	// frame for the call at SP, set up argument registers, push
	// the trapping PC on the stack, set the PC to the function to
	// call, set RDX to point to the closure (if a closure call),
	// and resume execution.
	//
	// If the function returns, this will set R12 to 1 and invoke
	// INT3. The debugger can then inspect any return value saved

		{"PtraceRegs.R9", Field, 0},
		{"PtraceRegs.Rax", Field, 0},
		{"PtraceRegs.Rbp", Field, 0},
		{"PtraceRegs.Rbx", Field, 0},
		{"PtraceRegs.Rcx", Field, 0},
		{"PtraceRegs.Rdi", Field, 0},
		{"PtraceRegs.Rdx", Field, 0},
		{"PtraceRegs.Rip", Field, 0},
		{"PtraceRegs.Rsi", Field, 0},
		{"PtraceRegs.Rsp", Field, 0},
		{"PtraceRegs.Ss", Field, 0},
		{"PtraceRegs.Uregs", Field, 0},
		{"PtraceRegs.Xcs", Field, 0},

pkg syscall (linux-amd64), type PtraceRegs struct, Rcx uint64
pkg syscall (linux-amd64), type PtraceRegs struct, Rdi uint64
pkg syscall (linux-amd64), type PtraceRegs struct, Rdx uint64
pkg syscall (linux-amd64), type PtraceRegs struct, Rip uint64
pkg syscall (linux-amd64), type PtraceRegs struct, Rsi uint64
pkg syscall (linux-amd64), type PtraceRegs struct, Rsp uint64