请问一个指令

hanlin11

在mips的启动代码中开始的时候出现了一条指令：

bal 1f#请问这条指令是什么意思呢，跳转到1：这个位置

1:li  t0,1fff

hanlin11

没人回答，！我现在知道什么意思了贴出来，大家共勉吧！

我最初不知道的是，bal 1f

1f 是什么意思，答案终于在see mips run chapter 9上找到了！

“In code you can use a number (decimal between 1 and 99) as a label.
This is treated as temporary, and you can use the same number as
many times as you like. In a branch instruction “1f” (forward) refers to the next “1:” label in the code and “1b” (back) refers to the previous “1:”label. This saves you thinking about names for little branches and loops.Reserve named labels for subroutine entry points or for exceptionally big jumps.“

摘自 see mips run 251 -252

That's all!

hanlin11

大家，一起探讨阿

hanlin11

我是做broadcom网络通信的

torchof2008

回复 2# hanlin11


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