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endianness fixes 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1268 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2005-02-07 12:43:57 +00:00
parent 7ff4d2180b
commit a8d3431ae9
3 changed files with 25 additions and 2 deletions
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8
target-arm/nwfpe/double_cpdo.c
View File

@ -150,7 +150,11 @@ unsigned int DoubleCPDO(const unsigned int opcode)
case MNF_CODE: case MNF_CODE:
{ {
unsigned int *p = (unsigned int*)&rFm; unsigned int *p = (unsigned int*)&rFm;
#ifdef WORDS_BIGENDIAN
p[0] ^= 0x80000000;
#else
p[1] ^= 0x80000000; p[1] ^= 0x80000000;
#endif
fpa11->fpreg[Fd].fDouble = rFm; fpa11->fpreg[Fd].fDouble = rFm;
} }
break; break;
@ -158,7 +162,11 @@ unsigned int DoubleCPDO(const unsigned int opcode)
case ABS_CODE: case ABS_CODE:
{ {
unsigned int *p = (unsigned int*)&rFm; unsigned int *p = (unsigned int*)&rFm;
#ifdef WORDS_BIGENDIAN
p[0] &= 0x7fffffff;
#else
p[1] &= 0x7fffffff; p[1] &= 0x7fffffff;
#endif
fpa11->fpreg[Fd].fDouble = rFm; fpa11->fpreg[Fd].fDouble = rFm;
} }
break; break;

9
target-arm/nwfpe/fpa11.h
View File

@ -22,6 +22,10 @@
#ifndef __FPA11_H__ #ifndef __FPA11_H__
#define __FPA11_H__ #define __FPA11_H__
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#define GET_FPA11() (qemufpa) #define GET_FPA11() (qemufpa)
/* /*
@ -87,8 +91,6 @@ extern void resetFPA11(void);
extern void SetRoundingMode(const unsigned int); extern void SetRoundingMode(const unsigned int);
extern void SetRoundingPrecision(const unsigned int); extern void SetRoundingPrecision(const unsigned int);
#define get_user(x,y) ((x)=*(y))
#define put_user(x,y) (*(y)=(x))
static inline unsigned int readRegister(unsigned int reg) static inline unsigned int readRegister(unsigned int reg)
{ {
return (user_registers[(reg)]); return (user_registers[(reg)]);
@ -128,4 +130,7 @@ unsigned int ZF;
unsigned int EmulateAll(unsigned int opcode, FPA11* qfpa, unsigned int* qregs); unsigned int EmulateAll(unsigned int opcode, FPA11* qfpa, unsigned int* qregs);
/* included only for get_user/put_user macros */
#include "qemu.h"
#endif #endif

10
target-arm/nwfpe/fpa11_cpdt.c
View File

@ -43,8 +43,13 @@ void loadDouble(const unsigned int Fn,const unsigned int *pMem)
unsigned int *p; unsigned int *p;
p = (unsigned int*)&fpa11->fpreg[Fn].fDouble; p = (unsigned int*)&fpa11->fpreg[Fn].fDouble;
fpa11->fType[Fn] = typeDouble; fpa11->fType[Fn] = typeDouble;
#ifdef WORDS_BIGENDIAN
get_user(p[0], &pMem[0]); /* sign & exponent */
get_user(p[1], &pMem[1]);
#else
get_user(p[0], &pMem[1]); get_user(p[0], &pMem[1]);
get_user(p[1], &pMem[0]); /* sign & exponent */ get_user(p[1], &pMem[0]); /* sign & exponent */
#endif
} }
static inline static inline
@ -133,8 +138,13 @@ void storeDouble(const unsigned int Fn,unsigned int *pMem)
default: val = fpa11->fpreg[Fn].fDouble; default: val = fpa11->fpreg[Fn].fDouble;
} }
#ifdef WORDS_BIGENDIAN
put_user(p[0], &pMem[0]); /* msw */
put_user(p[1], &pMem[1]); /* lsw */
#else
put_user(p[1], &pMem[0]); /* msw */ put_user(p[1], &pMem[0]); /* msw */
put_user(p[0], &pMem[1]); /* lsw */ put_user(p[0], &pMem[1]); /* lsw */
#endif
} }
static inline static inline