c_headers: Correct GCC warning when we create a 32bits mask.

We can get a warning when trying to shift a 32bits '1' 32 times, so we use a 64bit '1'.

c_headers: Correct GCC warning when we create a 32bits mask.
We can get a warning when trying to shift a 32bits '1' 32 times, so we use a 64bit '1'.
fd2b6d66 · Benoit Rat · 0b711148 · fd2b6d66
Commit fd2b6d66 authored Nov 27, 2013 by Benoit Rat
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cgen_c_headers.lua cgen_c_headers.lua +1 -1

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--- a/cgen_c_headers.lua
+++ b/cgen_c_headers.lua
@@ -121,7 +121,7 @@ function cgen_c_fileheader()
   emit("");
   emit("#ifndef __WBGEN2_MACROS_DEFINED__");
   emit("#define __WBGEN2_MACROS_DEFINED__");
-   emit("#define WBGEN2_GEN_MASK(offset, size) (((1<<(size))-1) << (offset))");
+   emit("#define WBGEN2_GEN_MASK(offset, size) (((1ULL<<(size))-1) << (offset))");
   emit("#define WBGEN2_GEN_WRITE(value, offset, size) (((value) & ((1<<(size))-1)) << (offset))");
   emit("#define WBGEN2_GEN_READ(reg, offset, size) (((reg) >> (offset)) & ((1<<(size))-1))");
   emit("#define WBGEN2_SIGN_EXTEND(value, bits) (((value) & (1<<bits) ? ~((1<<(bits))-1): 0 ) | (value))");