Prior to this PR, `int`, `signed int`, and `unsigned int`
bitfields are all treated as `unsigned int`.
With this PR, `signed int` will be treated as `signed int`,
and the others remain unsigned.
Since `Type` does not distinguish between `int` and `signed int`,
add an extra `int* SignenessSpecified` param to `ParseTypeSpec`
so we can tell these apart for bit-fields and treat plain `int : N`
as `unsigned int : N` since it is more efficient to zero-extend
than sign-extend.
Fixes#1095
Extract functions g_testbitfield and g_extractbitfield from LoadExpr.
This helps prepare for #1192, since g_extractbitfield will get much
longer and call AddCodeLine.
Previously, bit-field tests were incorrectly combined with load in
`if (x.bitfield)`. Delay the test until after the shift/mask
is done. Still combine tests with load if no shift/mask is required.
Fixes#1139
be loaded as an int. This was not the case if the expression rhs was a char.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4382 b7a2c559-68d2-44c3-8de9-860c34a00d81
is bad, since information is lost when converting functions and arrays to
pointers and cannot be regained easily. So I've reverted the change and fixed
the problem in a less general manner.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3984 b7a2c559-68d2-44c3-8de9-860c34a00d81
be converted to pointer-to-function and an array to pointer-to-member resp.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3977 b7a2c559-68d2-44c3-8de9-860c34a00d81
Moved LoadExpr + support functions into a separate module.
Removed obsolete files.
Some cleanup and makefile adjustments.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3114 b7a2c559-68d2-44c3-8de9-860c34a00d81
