例6.2-2/2 asm sub a1,20h/★小写字母转换成大写* copy: asm stosb asm and al, al /*C语言中,字符串用NU(0)结尾* asm inz loop main()/*主程序*/ char str[]=This started Out As Lowercase! i char chr[100] upper(chr, str)i printf("Origin string: \n%s\n",str)i printf("Uppercase string: \nos\n", chr)iasm sub al,20h /*小写字母转换成大写*/ copy: asm stosb asm and al,al /* C语言中，字符串用NULL（0）结尾 */ asm jnz loop } main() /* 主程序 */ { char str[]="This Started Out As Lowercase!"; char chr[100]; upper(chr,str); printf("Origin string:\n%s\n",str); printf("Uppercase String:\n%s\n",chr); } 例6.2－2/2