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* Fix to qvm compilation on big endian architectures

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This commit is contained in:
Tim Angus 2007-10-13 12:03:47 +00:00
parent 8f43965e13
commit 6dffd08e74
4 changed files with 24 additions and 104 deletions
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8
Makefile
View file

@ -44,12 +44,12 @@ PLATFORM=$(COMPILE_PLATFORM)
endif
export PLATFORM
ifndef ARCH
ARCH=$(COMPILE_ARCH)
ifeq ($(COMPILE_ARCH),powerpc)
COMPILE_ARCH=ppc
endif
ifeq ($(ARCH),powerpc)
ARCH=ppc
ifndef ARCH
ARCH=$(COMPILE_ARCH)
endif
export ARCH

103
code/tools/asm/cmdlib.c
View file

@ -975,13 +975,7 @@ int ParseNum (const char *str)
============================================================================
*/
#ifdef _SGI_SOURCE
#define __BIG_ENDIAN__
#endif
#ifdef __BIG_ENDIAN__
short LittleShort (short l)
short ShortSwap (short l)
{
byte b1,b2;
@ -991,13 +985,7 @@ short LittleShort (short l)
return (b1<<8) + b2;
}
short BigShort (short l)
{
return l;
}
int LittleLong (int l)
int LongSwap (int l)
{
byte b1,b2,b3,b4;
@ -1009,89 +997,20 @@ int LittleLong (int l)
return ((int)b1<<24) + ((int)b2<<16) + ((int)b3<<8) + b4;
}
int BigLong (int l)
{
return l;
}
typedef union {
float f;
unsigned int i;
} _FloatByteUnion;
float FloatSwap (const float *f) {
_FloatByteUnion out;
out.f = *f;
out.i = LongSwap(out.i);
float LittleFloat (float l)
{
union {byte b[4]; float f;} in, out;
in.f = l;
out.b[0] = in.b[3];
out.b[1] = in.b[2];
out.b[2] = in.b[1];
out.b[3] = in.b[0];
return out.f;
}
float BigFloat (float l)
{
return l;
}
#else
short BigShort (short l)
{
byte b1,b2;
b1 = l&255;
b2 = (l>>8)&255;
return (b1<<8) + b2;
}
short LittleShort (short l)
{
return l;
}
int BigLong (int l)
{
byte b1,b2,b3,b4;
b1 = l&255;
b2 = (l>>8)&255;
b3 = (l>>16)&255;
b4 = (l>>24)&255;
return ((int)b1<<24) + ((int)b2<<16) + ((int)b3<<8) + b4;
}
int LittleLong (int l)
{
return l;
}
float BigFloat (float l)
{
union {byte b[4]; float f;} in, out;
in.f = l;
out.b[0] = in.b[3];
out.b[1] = in.b[2];
out.b[2] = in.b[1];
out.b[3] = in.b[0];
return out.f;
}
float LittleFloat (float l)
{
return l;
}
#endif
//=======================================================

8
code/tools/asm/cmdlib.h
View file

@ -115,14 +115,6 @@ void ExtractFileExtension( const char *path, char *dest );
int ParseNum (const char *str);
short BigShort (short l);
short LittleShort (short l);
int BigLong (int l);
int LittleLong (int l);
float BigFloat (float l);
float LittleFloat (float l);
char *COM_Parse (char *data);
extern char com_token[1024];

9
code/tools/asm/q3asm.c
View file

@ -20,6 +20,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include "../../qcommon/q_platform.h"
#include "cmdlib.h"
#include "mathlib.h"
#include "../../qcommon/qfiles.h"
@ -1356,6 +1357,7 @@ void WriteVmFile( void ) {
vmHeader_t header;
FILE *f;
int headerSize;
int i;
report( "%i total errors\n", errorCount );
@ -1400,6 +1402,13 @@ void WriteVmFile( void ) {
report( "Writing to %s\n", imageName );
#ifdef Q3_BIG_ENDIAN
// byte swap the header
for ( i = 0 ; i < sizeof( vmHeader_t ) / 4 ; i++ ) {
((int *)&header)[i] = LittleLong( ((int *)&header)[i] );
}
#endif
CreatePath( imageName );
f = SafeOpenWrite( imageName );
SafeWrite( f, &header, headerSize );