Force 32 bit access to device
viswanath krishnamurthy
viswak@yahoo.com
Thu Oct 27 18:19:00 GMT 2005
I have a retarded piece of hardware which only allows
32 bit access. If I use bit-fields, GCC optimizes to
uses byte/short depending on bit field size. Is there
an option to force GCC to generate 32 bit
read-modify-write for bit-fields?
e.g
struct str {
volatile unsigned int a:8;
volatile unsigned int b:24;
};
struct str s;
s.a = 5;
will generate a 8 bit access (store)
gcc 3.2.3
Target: MIPS/x86
-Viswa
__________________________________
Start your day with Yahoo! - Make it your home page!
http://www.yahoo.com/r/hs
More information about the Gcc-help
mailing list