package cpu

//extern gccgoGetCpuidCount
func gccgoGetCpuidCount(eaxArg, ecxArg uint32, eax, ebx, ecx, edx *uint32)

func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32) {
	var a, b, c, d uint32
	gccgoGetCpuidCount(eaxArg, ecxArg, &a, &b, &c, &d)
	return a, b, c, d
}

//extern gccgoXgetbv
func gccgoXgetbv(eax, edx *uint32)

func xgetbv() (eax, edx uint32) {
	var a, d uint32
	gccgoXgetbv(&a, &d)
	return a, d
}

// 386 does not have frame pointer register.
func (c *context) set_fp(x uintptr) {}

func prepareContextForSigResume(c *context) {
	c.edx = c.esp
	c.ecx = c.eip
}

func dumpregs(r *context) {
	print("eax     ", hex(r.eax), "\n")
	print("ebx     ", hex(r.ebx), "\n")
	print("ecx     ", hex(r.ecx), "\n")
	print("edx     ", hex(r.edx), "\n")
	print("edi     ", hex(r.edi), "\n")
	print("esi     ", hex(r.esi), "\n")

type sigctxt struct {
	info *siginfo
	ctxt unsafe.Pointer
}

//go:nosplit
//go:nowritebarrierrec
func (c *sigctxt) regs() *sigcontext { return &(*ucontext)(c.ctxt).uc_mcontext }

func (c *sigctxt) eax() uint32 { return c.regs().eax }
func (c *sigctxt) ebx() uint32 { return c.regs().ebx }
func (c *sigctxt) ecx() uint32 { return c.regs().ecx }
func (c *sigctxt) edx() uint32 { return c.regs().edx }

.model    flat

PUBLIC    _${methodName}
_TEXT     SEGMENT
_${methodName}    PROC
mov    eax, DWORD PTR 4[esp]
add    eax, DWORD PTR 8[esp]
ret    0
_${methodName}    ENDP
_TEXT   ENDS
END
"""
        }else{
            return """
.text
.globl  _${methodName}
_${methodName}:
movl    8(%esp), %eax
addl    4(%esp), %eax
ret
"""

        }
    }

	X86.HasRDRAND = isSet(30, ecx1)

	var osSupportsAVX, osSupportsAVX512 bool
	// For XGETBV, OSXSAVE bit is required and sufficient.
	if X86.HasOSXSAVE {
		eax, _ := xgetbv()
		// Check if XMM and YMM registers have OS support.
		osSupportsAVX = isSet(1, eax) && isSet(2, eax)

		if runtime.GOOS == "darwin" {
			// Darwin doesn't save/restore AVX-512 mask registers correctly across signal handlers.

package cpu

// cpuid is implemented in cpu_x86.s for gc compiler
// and in cpu_gccgo.c for gccgo.
func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32)

// xgetbv with ecx = 0 is implemented in cpu_x86.s for gc compiler
// and in cpu_gccgo.c for gccgo.

	xArgR16op:      AX,
	xArgR32:        EAX,
	xArgR32M16:     EAX,
	xArgR32M8:      EAX,
	xArgR32op:      EAX,
	xArgR64:        RAX,
	xArgR64M16:     RAX,
	xArgR64op:      RAX,
	xArgR8:         AL,
	xArgR8op:       AL,
	xArgRM16:       AX,
	xArgRM32:       EAX,
	xArgRM64:       RAX,
	xArgRM8:        AL,
	xArgRmf16:      AX,
	xArgRmf32:      EAX,
	xArgRmf64:      RAX,

//go:build dragonfly || freebsd || linux || netbsd || openbsd

package runtime

import (
	"internal/abi"
	"internal/goarch"
	"unsafe"
)

func dumpregs(c *sigctxt) {
	print("eax    ", hex(c.eax()), "\n")
	print("ebx    ", hex(c.ebx()), "\n")
	print("ecx    ", hex(c.ecx()), "\n")
	print("edx    ", hex(c.edx()), "\n")
	print("edi    ", hex(c.edi()), "\n")
	print("esi    ", hex(c.esi()), "\n")

	switch inst.Op {
	case MONITOR:
		inst.Args[0] = EDX
		inst.Args[1] = ECX
		inst.Args[2] = EAX
		if inst.AddrSize == 16 {
			inst.Args[2] = AX
		}

	case MWAIT:
		if inst.Mode == 64 {
			inst.Args[0] = RCX
			inst.Args[1] = RAX
		} else {
			inst.Args[0] = ECX
			inst.Args[1] = EAX
		}
	}

	// Adjust which prefixes will be displayed.

	SP:   "SP",
	BP:   "BP",
	SI:   "SI",
	DI:   "DI",
	R8W:  "R8W",
	R9W:  "R9W",
	R10W: "R10W",
	R11W: "R11W",
	R12W: "R12W",
	R13W: "R13W",
	R14W: "R14W",
	R15W: "R15W",
	EAX:  "EAX",
	ECX:  "ECX",
	EDX:  "EDX",
	EBX:  "EBX",
	ESP:  "ESP",
	EBP:  "EBP",
	ESI:  "ESI",
	EDI:  "EDI",
	R8L:  "R8L",
	R9L:  "R9L",
	R10L: "R10L",
	R11L: "R11L",
	R12L: "R12L",