5 #include "SDL_endian.h"
6 #include "SDL_cpuinfo.h"
9 * Watcom C flags these as Warning 201: "Unreachable code" if you just
10 * compare them directly, so we push it through a function to keep the
11 * compiler quiet. --ryan.
13 static int badsize(size_t sizeoftype, size_t hardcodetype)
15 return sizeoftype != hardcodetype;
18 int TestTypes(SDL_bool verbose)
22 if ( badsize(sizeof(Uint8), 1) ) {
24 printf("sizeof(Uint8) != 1, instead = %ul\n",
28 if ( badsize(sizeof(Uint16), 2) ) {
30 printf("sizeof(Uint16) != 2, instead = %ul\n",
34 if ( badsize(sizeof(Uint32), 4) ) {
36 printf("sizeof(Uint32) != 4, instead = %ul\n",
40 #ifdef SDL_HAS_64BIT_TYPE
41 if ( badsize(sizeof(Uint64), 8) ) {
43 printf("sizeof(Uint64) != 8, instead = %ul\n",
49 printf("WARNING: No 64-bit datatype on this platform\n");
52 if ( verbose && !error )
53 printf("All data types are the expected size.\n");
55 return( error ? 1 : 0 );
58 int TestEndian(SDL_bool verbose)
61 Uint16 value = 0x1234;
63 Uint16 value16 = 0xCDAB;
64 Uint16 swapped16 = 0xABCD;
65 Uint32 value32 = 0xEFBEADDE;
66 Uint32 swapped32 = 0xDEADBEEF;
67 #ifdef SDL_HAS_64BIT_TYPE
68 Uint64 value64, swapped64;
71 value64 |= 0xCDAB3412;
72 swapped64 = 0x1234ABCD;
74 swapped64 |= 0xDEADBEEF;
78 printf("Detected a %s endian machine.\n",
79 (SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big");
81 if ( (*((char *)&value) >> 4) == 0x1 ) {
82 real_byteorder = SDL_BIG_ENDIAN;
84 real_byteorder = SDL_LIL_ENDIAN;
86 if ( real_byteorder != SDL_BYTEORDER ) {
88 printf("Actually a %s endian machine!\n",
89 (real_byteorder == SDL_LIL_ENDIAN) ? "little" : "big");
94 printf("Value 16 = 0x%X, swapped = 0x%X\n", value16, SDL_Swap16(value16));
96 if ( SDL_Swap16(value16) != swapped16 ) {
98 printf("16 bit value swapped incorrectly!\n");
103 printf("Value 32 = 0x%X, swapped = 0x%X\n", value32, SDL_Swap32(value32));
105 if ( SDL_Swap32(value32) != swapped32 ) {
107 printf("32 bit value swapped incorrectly!\n");
111 #ifdef SDL_HAS_64BIT_TYPE
114 printf("Value 64 = 0x%I64X, swapped = 0x%I64X\n", value64, SDL_Swap64(value64));
116 printf("Value 64 = 0x%llX, swapped = 0x%llX\n", value64, SDL_Swap64(value64));
119 if ( SDL_Swap64(value64) != swapped64 ) {
121 printf("64 bit value swapped incorrectly!\n");
126 return( error ? 1 : 0 );
130 int TestCPUInfo(SDL_bool verbose)
133 printf("RDTSC %s\n", SDL_HasRDTSC() ? "detected" : "not detected");
134 printf("MMX %s\n", SDL_HasMMX() ? "detected" : "not detected");
135 printf("MMX Ext %s\n", SDL_HasMMXExt() ? "detected" : "not detected");
136 printf("3DNow %s\n", SDL_Has3DNow() ? "detected" : "not detected");
137 printf("3DNow Ext %s\n", SDL_Has3DNowExt() ? "detected" : "not detected");
138 printf("SSE %s\n", SDL_HasSSE() ? "detected" : "not detected");
139 printf("SSE2 %s\n", SDL_HasSSE2() ? "detected" : "not detected");
140 printf("AltiVec %s\n", SDL_HasAltiVec() ? "detected" : "not detected");
145 int main(int argc, char *argv[])
147 SDL_bool verbose = SDL_TRUE;
150 if ( argv[1] && (SDL_strcmp(argv[1], "-q") == 0) ) {
154 printf("This system is running %s\n",
158 /* Haiku must appear here before BeOS, since it also defines __BEOS__ */
201 "an unknown operating system! (see SDL_platform.h)"
206 status += TestTypes(verbose);
207 status += TestEndian(verbose);
208 status += TestCPUInfo(verbose);