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| From: | John Regehr |
| Subject: | [avr-gcc-list] accessing carry bit |
| Date: | Wed, 30 Jan 2008 09:56:59 -0700 (MST) |
| User-agent: | Alpine 1.00 (DEB 882 2007-12-20) |
microcontroller compilers support - the ability to write things like "if (CARRY) ..." can be a big win for some code.
A killer app for exposing some of the condition code flags to C may be that this facilitates very efficient integer over/under flow detection. Integer overflows are the source of many nasty security holes.
John Regehr
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