/* arrive here in 32 bit mode */
.globl test64
test64:
	/* first of all, get our ljmp points. */
	leal	to64p,%edx
	movl	(%edx),%edx
	leal	to32p,%ecx
	movl	(%ecx),%ecx

	/* Pointer to command block */
	leal	cmdp,%eax

	/* Set up for inter-segment jump to 64 bit code mode */
	pushl	$43	/* $GSEL(GUCODE_SEL, SEL_UPL) */
	pushl	%edx	/* passed in (to64) */
	lretl

	.code64
	.p2align 4
	.globl to64
to64:

	/* get 32 bit pointers to source and dest data */
	movl	4(%rax), %ebx	/* dest */
	movl	0(%rax), %eax	/* source */

	/* Copy in a 64 bit operation */
	movq	(%rax), %rdx
	movq	%rdx, (%rbx)


	/* Get the heck out of here. Jump back to 32 bit code segment */
	pushq	$27	/* GSEL(GUCODE32_UPL, SEL_UPL) */
	pushq	%rcx	/* passed in (to32) */
	lretq

	.code32
	.p2align 4
	.globl to32
to32:
	ret