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作者 SILee 在 PTT [ ASM ] 看板的留言(推文), 共61則
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1F推:GDB直接下info stack就可以直接看到這些資訊了11/14 22:08
1F推:你是用modelsim嗎?01/12 22:24
2F→:我印象中modelsim好像不能這樣作01/12 22:24
3F→:by the way, HDL相關的問題請去electronics板01/12 22:25
4F→:寫HDL的邏輯跟一般的programming languages有一些不同01/12 22:28
5F→:你跑到programming相關板應該很少人有辦法回答你問題01/12 22:30
1F推:他的意思應該是如果不需要用到fp就不要多此一舉去動它12/19 00:17
2F→:因為function如果需要動用到fp時必須先把原先的fp放到stack12/19 00:18
3F→:而且function return時還要再pop出來 會浪費掉很多時間12/19 00:19
4F→:某一些小function如果不需動用到很多local variable的話12/19 00:20
5F→:是可以不使用到fp的 因為local variables全部放在register裡12/19 00:22
6F→:fp的存在是為了方便fetch到存在stack中的local variables12/19 00:23
7F→:當你不需要利用stack來暫存一些intermediate value時12/19 00:24
8F→:去存取fp這個動作就是redundancy的instructions12/19 00:25
4F→:我論原P清楚什麼是ASM的可能性11/11 18:22
3F→:那本書最後appendix的地方有啊11/08 19:35
1F推:計組是整個數位電路的基本架構01/09 03:03
2F→:就算不是要走計算機相關的領域還是很重要01/09 03:04
3F→:因為很多數位電路設計的概念都是從計組衍伸出來的01/09 03:05
4F→:如果連計組都學不好 說電路設計很強絕對是騙人的01/09 03:05
2F推:這應該是要看compiler, assembler, linker怎麼實作的吧12/03 00:57
3F→:每間公司出的tool chain會有些不同12/03 00:58
1F推:那個ARM的官網就有了10/19 15:56
4F推:用gcc做complie時下-S這個flag就會輸出組語檔了10/19 01:21
1F→:FPGA跟DSP差很多....10/14 21:55