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ppc port

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@36 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2003-03-20 22:33:23 +00:00
parent 68decc7c7f
commit 04369ff2f5
14 changed files with 486 additions and 35 deletions
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136
cpu-i386.h
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@ -4,6 +4,7 @@
#ifndef CPU_I386_H
#define CPU_I386_H
#include "config.h"
#include <setjmp.h>
#define R_EAX 0
@ -174,6 +175,7 @@ typedef struct CPUX86State {
int exception_index;
} CPUX86State;
/* all CPU memory access use these macros */
static inline int ldub(void *ptr)
{
return *(uint8_t *)ptr;
@ -184,6 +186,134 @@ static inline int ldsb(void *ptr)
return *(int8_t *)ptr;
}
static inline void stb(void *ptr, int v)
{
*(uint8_t *)ptr = v;
}
#ifdef WORDS_BIGENDIAN
/* conservative code for little endian unaligned accesses */
static inline int lduw(void *ptr)
{
#ifdef __powerpc__
int val;
__asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (ptr));
return val;
#else
uint8_t *p = ptr;
return p[0] | (p[1] << 8);
#endif
}
static inline int ldsw(void *ptr)
{
#ifdef __powerpc__
int val;
__asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (ptr));
return (int16_t)val;
#else
uint8_t *p = ptr;
return (int16_t)(p[0] | (p[1] << 8));
#endif
}
static inline int ldl(void *ptr)
{
#ifdef __powerpc__
int val;
__asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (ptr));
return val;
#else
uint8_t *p = ptr;
return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24);
#endif
}
static inline uint64_t ldq(void *ptr)
{
uint8_t *p = ptr;
uint32_t v1, v2;
v1 = ldl(p);
v2 = ldl(p + 4);
return v1 | ((uint64_t)v2 << 32);
}
static inline void stw(void *ptr, int v)
{
#ifdef __powerpc__
__asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*(uint16_t *)ptr) : "r" (v), "r" (ptr));
#else
uint8_t *p = ptr;
p[0] = v;
p[1] = v >> 8;
#endif
}
static inline void stl(void *ptr, int v)
{
#ifdef __powerpc__
__asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*(uint32_t *)ptr) : "r" (v), "r" (ptr));
#else
uint8_t *p = ptr;
p[0] = v;
p[1] = v >> 8;
p[2] = v >> 16;
p[3] = v >> 24;
#endif
}
static inline void stq(void *ptr, uint64_t v)
{
uint8_t *p = ptr;
stl(p, (uint32_t)v);
stl(p + 4, v >> 32);
}
/* float access */
static inline float ldfl(void *ptr)
{
union {
float f;
uint32_t i;
} u;
u.i = ldl(ptr);
return u.f;
}
static inline double ldfq(void *ptr)
{
union {
double d;
uint64_t i;
} u;
u.i = ldq(ptr);
return u.d;
}
static inline void stfl(void *ptr, float v)
{
union {
float f;
uint32_t i;
} u;
u.f = v;
stl(ptr, u.i);
}
static inline void stfq(void *ptr, double v)
{
union {
double d;
uint64_t i;
} u;
u.d = v;
stq(ptr, u.i);
}
#else
static inline int lduw(void *ptr)
{
return *(uint16_t *)ptr;
@ -204,11 +334,6 @@ static inline uint64_t ldq(void *ptr)
return *(uint64_t *)ptr;
}
static inline void stb(void *ptr, int v)
{
*(uint8_t *)ptr = v;
}
static inline void stw(void *ptr, int v)
{
*(uint16_t *)ptr = v;
@ -245,6 +370,7 @@ static inline void stfq(void *ptr, double v)
{
*(double *)ptr = v;
}
#endif
#ifndef IN_OP_I386
void cpu_x86_outb(int addr, int val);