"PUNPCKHLQ",
	"PUNPCKHQDQ",
	"PUNPCKHWL",
	"PUNPCKLBW",
	"PUNPCKLLQ",
	"PUNPCKLQDQ",
	"PUNPCKLWL",
	"PUSHAL",
	"PUSHAW",
	"PUSHFL",
	"PUSHFQ",
	"PUSHFW",
	"PUSHL",
	"PUSHQ",
	"PUSHW",
	"PXOR",
	"QUAD",
	"RCLB",
	"RCLL",
	"RCLQ",
	"RCLW",
	"RCPPS",
	"RCPSS",
	"RCRB",
	"RCRL",
	"RCRQ",
	"RCRW",
	"RDFSBASEL",
	"RDFSBASEQ",
	"RDGSBASEL",

		}
	}
	lSSE := layout{stack: l.stack, sp: "SP"}
	for _, reg := range regNamesAMD64 {
		if strings.HasPrefix(reg, "X") {
			lSSE.add("MOVUPS", reg, 16)
		}
	}

	// TODO: MXCSR register?

	p("PUSHQ BP")
	p("MOVQ SP, BP")
	p("// Save flags before clobbering them")
	p("PUSHFQ")
	p("// obj doesn't understand ADD/SUB on SP, but does understand ADJSP")
	p("ADJSP $%d", lSSE.stack)

	MOVQ	AX, 8(SP)
	CALL	runtime·args(SB)
	CALL	runtime·osinit(SB)
	CALL	runtime·schedinit(SB)

	// create a new goroutine to start program
	MOVQ	$runtime·mainPC(SB), AX		// entry
	PUSHQ	AX
	CALL	runtime·newproc(SB)
	POPQ	AX

	// start this M
	CALL	runtime·mstart(SB)

	CALL	runtime·abort(SB)	// mstart should never return
	RET

	MOVQ AX, CR0 // 0f22c0
	MOVQ DX, CR0 // 0f22c2
	MOVQ DI, CR4 // 0f22e7
	MOVQ DR0, AX // 0f21c0
	MOVQ DR6, DX // 0f21f2
	MOVQ DR7, SI // 0f21fe
	// Test other movtab entries.
	PUSHQ GS // 0fa8
	PUSHQ FS // 0fa0
	POPQ FS  // 0fa1
	POPQ GS  // 0fa9
	// All instructions below semantically have unsigned operands,
	// but previous assembler permitted negative arguments.

	PUSHW AX
	POPW R11                                // 66418fc3 or 66415b
	PUSHQ AX
	POPQ (BX)                               // 8f03
	PUSHQ AX
	POPQ (R11)                              // 418f03
	PUSHQ AX
	POPQ DX                                 // 8fc2 or 5a
	PUSHQ AX
	POPQ R11                                // 418fc3 or 415b
	POPCNTW (BX), DX                        // 66f30fb813