操作系统学习笔记(23)--系统内存获取

 

设置内存，首先需要获取内存大小。

 

; Use int 15h to find out size of extended memory in KB.; Extended memory is the memory above 1MB. So by; adding 1MB to this amount, we get the total amount; of system memory. We can only detect 64MB this way,; but that's OK for now.movah, 0x88int0x15addax, 1024; 1024 KB == 1 MBmov[mem_size_kbytes], ax

 

该参数传递给内核。