AVR C Runtime Library - Bugs: bug #20248, FAQ#3: clarify which registers are...
You are not allowed to post comments on this tracker with your current authentication level.
bug #20248: FAQ#3: clarify which registers are safe to be used
Submitter: | Joerg Wunsch <joerg_wunsch> | ||
Submitted: | Sat 23 Jun 2007 10:06:25 PM UTC | ||
Category: | Documentation | Severity: | 3 - Normal |
Priority: | 9 - Immediate | Item Group: | Documentation |
Status: | Fixed | Assigned to: | joerg_wunsch |
Percent Complete: | 0% | Open/Closed: | Closed |
Release: | None | Fixed Release: | None |
Sun 01 Jul 2007 02:06:25 AM UTC, comment #1: |
Dmitry Xmelkov <dmix> |
Sat 23 Jun 2007 10:06:25 PM UTC, original submission:
FAQ#3 says that registers r2 through r15 could be used for
|
Joerg Wunsch <joerg_wunsch> |
No files currently attached
Depends on the following items: None found
Items that depend on this one: None found
Carbon-Copy List
Follow 4 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2007-10-30 | joerg_wunsch | Status | None | Fixed | |
Assigned to | None | joerg_wunsch | |||
Open/Closed | Open | Closed | |||
2007-09-12 | arcanum | Priority | 5 - Normal | 9 - Immediate |
Powered by Savane 3.13-4448.
Corresponding source code
Plus the next point is not clean:
Is it needed to save/restore arguments beyound r18-r25 registers?
For example, is it possible in a function
foo(int a, int b, int c, int d, int e)
to destroy r16/r17 registers?