gas/testsuite/gas/i386/ptwrite.s - binutils-gdb - Git at Google

 # Check 32bit PTWRITE instructions

 	.text
 _start:
 	.rept 2
 	ptwrite %ecx
 	ptwritel %ecx
 	ptwrite (%ecx)
 	ptwritel (%ecx)

 	.intel_syntax noprefix
 	ptwrite ecx
 	ptwrite [ecx]
 	ptwrite DWORD PTR [ecx]

 	.att_syntax prefix
 	.code16
 	.endr
	# Check 32bit PTWRITE instructions

	.text
	_start:
	.rept 2
	ptwrite %ecx
	ptwritel %ecx
	ptwrite (%ecx)
	ptwritel (%ecx)

	.intel_syntax noprefix
	ptwrite ecx
	ptwrite [ecx]
	ptwrite DWORD PTR [ecx]

	.att_syntax prefix
	.code16
	.endr