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arm support
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@221 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
parent
0f533160c7
commit
a95c67907c
52
cpu-i386.h
52
cpu-i386.h
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@ -238,7 +238,10 @@ static inline void stb(void *ptr, int v)
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*(uint8_t *)ptr = v;
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}
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#ifdef WORDS_BIGENDIAN
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/* NOTE: on arm, putting 2 in /proc/sys/debug/alignment so that the
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kernel handles unaligned load/stores may give better results, but
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it is a system wide setting : bad */
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#if defined(WORDS_BIGENDIAN) || defined(__arm__)
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/* conservative code for little endian unaligned accesses */
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static inline int lduw(void *ptr)
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@ -329,16 +332,6 @@ static inline float ldfl(void *ptr)
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return u.f;
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}
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static inline double ldfq(void *ptr)
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{
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union {
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double d;
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uint64_t i;
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} u;
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u.i = ldq(ptr);
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return u.d;
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}
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static inline void stfl(void *ptr, float v)
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{
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union {
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@ -349,6 +342,42 @@ static inline void stfl(void *ptr, float v)
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stl(ptr, u.i);
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}
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#if defined(__arm__) && !defined(WORDS_BIGENDIAN)
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/* NOTE: arm is horrible as double 32 bit words are stored in big endian ! */
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static inline double ldfq(void *ptr)
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{
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union {
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double d;
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uint32_t tab[2];
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} u;
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u.tab[1] = ldl(ptr);
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u.tab[0] = ldl(ptr + 4);
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return u.d;
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}
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static inline void stfq(void *ptr, double v)
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{
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union {
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double d;
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uint32_t tab[2];
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} u;
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u.d = v;
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stl(ptr, u.tab[1]);
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stl(ptr + 4, u.tab[0]);
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}
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#else
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static inline double ldfq(void *ptr)
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{
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union {
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double d;
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uint64_t i;
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} u;
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u.i = ldq(ptr);
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return u.d;
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}
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static inline void stfq(void *ptr, double v)
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{
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union {
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@ -358,6 +387,7 @@ static inline void stfq(void *ptr, double v)
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u.d = v;
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stq(ptr, u.i);
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}
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#endif
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#else
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12
exec.h
12
exec.h
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@ -246,6 +246,18 @@ static inline int testandset (int *p)
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}
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#endif
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#ifdef __arm__
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static inline int testandset (int *spinlock)
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{
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register unsigned int ret;
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__asm__ __volatile__("swp %0, %1, [%2]"
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: "=r"(ret)
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: "0"(1), "r"(spinlock));
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return ret;
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}
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#endif
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typedef int spinlock_t;
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#define SPIN_LOCK_UNLOCKED 0
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@ -104,6 +104,16 @@ static void inline flush_icache_range(unsigned long start, unsigned long stop)
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#endif
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#ifdef __arm__
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static inline void flush_icache_range(unsigned long start, unsigned long stop)
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{
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register unsigned long _beg __asm ("a1") = start;
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register unsigned long _end __asm ("a2") = stop;
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register unsigned long _flg __asm ("a3") = 0;
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__asm __volatile__ ("swi 0x9f0002" : : "r" (_beg), "r" (_end), "r" (_flg));
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}
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#endif
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extern FILE *logfile;
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extern int loglevel;
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@ -166,6 +176,7 @@ enum {
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NB_OPS,
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};
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#include "dyngen.h"
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#include "op-i386.h"
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/* operand size */
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