test67.asm

汇编编译器的最新版本的源码.买了自己动手写操作系统这本书的人一定要下

;Testname=unoptimized; Arguments=-fbin -otest67.bin -O0; Files=stdout stderr test67.bin
;Testname=optimized;   Arguments=-fbin -otest67.bin -Ox; Files=stdout stderr test67.bin

	bits 16

	mov ax,[bx]
	mov ax,[foo]
	mov ax,[word foo]
	mov ax,[dword foo]
	mov ax,[ebx]
	rep movsb
	a16 rep movsb
	a32 rep movsb
	a32 mov ax,bx

	bits 32

	mov ax,[bx]
	mov ax,[foo]
	mov ax,[word foo]
	mov ax,[dword foo]
	mov ax,[ebx]
	rep movsb
	a16 rep movsb
	a32 rep movsb

	bits 64

	mov ax,[rbx]
	mov ax,[foo]
	mov ax,[qword foo]
	mov ax,[dword foo]
	mov ax,[ebx]
	rep movsb
	a32 rep movsb
	a64 rep movsb

foo: