The proper output for the byte-sized output of "setc" is "=qm".

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

The argument to an "m" constraint is an object, not a pointer to an
object.  For a void pointer it needs to be cast to an indirectable
type (like char) and then indirected.

Reported-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

The bit test instructions returns the tested bit in CF, not the
inverse of the tested bit in ZF.  I don't know how I got that idea...

Reported-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Add a centralized bitops header <sys/bitops.h> which uses x86 bitops
instructions.  This is necessary to keep gcc 4.5 from aborting
compilation due to the inlined code being larger than the non-inlined
version, and well, we should really use the bitops.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Previously, clock_t was 16 bits and counted timer ticks, now make it
32 bits and count milliseconds.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

CPUID functions were apparently broken when made PIC-safe; clean up
and fix.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Do the actual idling in protected mode.  This both allows PM code a
more efficient interface, but also handles bugs in HVM implementations
which don't handle HLT in real mode.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

Conversion macros to change between d_type and st_mode values.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Add an enum for the DT_* constants for the d_type field.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

The 16-bit API to opendir/readdir/closedir was confused, had a memory
leak, and was incompatible with Syslinux 3.x anyway.  Replace it with
a pure 32-bit API.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>