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ICC启动函数反汇编，怎么看不懂呢

作者：NE5532　栏目：单片机

ICC启动函数反汇编，怎么看不懂呢
今天拿ICC写了个空工程弄来看启动函数的反汇编代码，C语言源程序如下：

#include <iom8v.h>
#include <macros.h>

void main (void)
{
    while(1);
}

AVRSTUDIO给出的反汇编代码如下（直接对HEX文件反汇编）：

+00000000:   C019        RJMP    PC+0x001A        Relative jump
+00000001:   FFFF        ???                      Data or UNKNOWN opcode
+00000002:   FFFF        ???                      Data or UNKNOWN opcode
+00000003:   FFFF        ???                      Data or UNKNOWN opcode
+00000004:   FFFF        ???                      Data or UNKNOWN opcode
+00000005:   FFFF        ???                      Data or UNKNOWN opcode
+00000006:   FFFF        ???                      Data or UNKNOWN opcode
+00000007:   FFFF        ???                      Data or UNKNOWN opcode
+00000008:   FFFF        ???                      Data or UNKNOWN opcode
+00000009:   FFFF        ???                      Data or UNKNOWN opcode
+0000000A:   FFFF        ???                      Data or UNKNOWN opcode
+0000000B:   FFFF        ???                      Data or UNKNOWN opcode
+0000000C:   FFFF        ???                      Data or UNKNOWN opcode
+0000000D:   FFFF        ???                      Data or UNKNOWN opcode
+0000000E:   FFFF        ???                      Data or UNKNOWN opcode
+0000000F:   FFFF        ???                      Data or UNKNOWN opcode
+00000010:   FFFF        ???                      Data or UNKNOWN opcode
+00000011:   FFFF        ???                      Data or UNKNOWN opcode
+00000012:   FFFF        ???                      Data or UNKNOWN opcode
+00000013:   FFFF        ???                      Data or UNKNOWN opcode
+00000014:   FFFF        ???                      Data or UNKNOWN opcode
+00000015:   FFFF        ???                      Data or UNKNOWN opcode
+00000016:   FFFF        ???                      Data or UNKNOWN opcode
+00000017:   FFFF        ???                      Data or UNKNOWN opcode
+00000018:   FFFF        ???                      Data or UNKNOWN opcode
+00000019:   FFFF        ???                      Data or UNKNOWN opcode
+0000001A:   EFCF        SER     R28              Set Register
+0000001B:   E0D2        LDI     R29,0x02         Load immediate
+0000001C:   BFCD        OUT     0x3D,R28         Out to I/O location
+0000001D:   BFDE        OUT     0x3E,R29         Out to I/O location
+0000001E:   51C0        SUBI    R28,0x10         Subtract immediate
+0000001F:   40D0        SBCI    R29,0x00         Subtract immediate with carry
+00000020:   EA0A        LDI     R16,0xAA         Load immediate
+00000021:   8308        STD  &n

2楼：	>>参与讨论
作者： NE5532 于 2007/3/11 20:10:00 发布：忘了说程序版本了 ICC：6.31A AVRSTUDIO：4.12

3楼：

>>参与讨论

作者： NE5532 于 2007/3/12 12:20:00 发布：

米有人响应？
是不是汇编太乱了没人看，稍微整理一下

+00000026:   30E0        CPI     R30,0x00         Compare with immediate
+00000027:   07F1        CPC     R31,R17          Compare with carry

和

+00000031:   33E4        CPI     R30,0x34         Compare with immediate
+00000032:   07F1        CPC     R31,R17          Compare with carry

两个循环似乎没有执行。

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