#ifndef UTIL_H_
#define UTIL_H_
+
#ifdef NO_STDINT_H
typedef char int8_t;
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef int int32_t;
typedef unsigned int uint32_t;
+typedef unsigned long intptr_t;
#else
#include <stdint.h>
#endif
-extern int sinlut[];
+#ifdef __GNUC__
+#define INLINE __inline
+#define PACKED __attribute__((packed))
+
+#elif defined(__WATCOMC__)
+#define INLINE __inline
+#define PACKED
+
+#else
+#define INLINE
+#define PACKED
+#endif
+
+#define BSWAP16(x) ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
+#define BSWAP32(x) \
+ ((((x) >> 24) & 0xff) | \
+ (((x) >> 8) & 0xff00) | \
+ (((x) << 8) & 0xff0000) | \
+ ((x) << 24))
-#define SIN(x) sinlut[(x) & 0xff]
-#define COS(x) sinlut[((x) + 64) & 0xff]
+
+extern short sinlut[];
+
+#define SIN(x) (int)sinlut[(x) & 0x7ff]
+#define COS(x) (int)sinlut[((x) + 512) & 0x7ff]
int mask_to_shift(unsigned int mask);
+#if defined(__i386__) || defined(__x86_64__) || defined(__386__) || defined(MSDOS)
+/* fast conversion of double -> 32bit int
+ * for details see:
+ * - http://chrishecker.com/images/f/fb/Gdmfp.pdf
+ * - http://stereopsis.com/FPU.html#convert
+ */
+static INLINE int32_t cround64(double val)
+{
+ val += 6755399441055744.0;
+ return *(int32_t*)&val;
+}
+#else
+#define cround64(x) ((int32_t)(x))
+#endif
+
+static INLINE float rsqrt(float x)
+{
+ float xhalf = x * 0.5f;
+ int32_t i = *(int32_t*)&x;
+ i = 0x5f3759df - (i >> 1);
+ x = *(float*)&i;
+ x = x * (1.5f - xhalf * x * x);
+ return x;
+}
+
+extern uint32_t perf_start_count, perf_interval_count;
+
+#ifdef __WATCOMC__
+void memset16(void *dest, uint16_t val, int count);
+#pragma aux memset16 = \
+ "cld" \
+ "test ecx, 1" \
+ "jz memset16_dwords" \
+ "rep stosw" \
+ "jmp memset16_done" \
+ "memset16_dwords:" \
+ "shr ecx, 1" \
+ "push ax" \
+ "shl eax, 16" \
+ "pop ax" \
+ "rep stosd" \
+ "memset16_done:" \
+ parm[edi][ax][ecx];
+
+#ifdef USE_MMX
+void memcpy64(void *dest, void *src, int count);
+#pragma aux memcpy64 = \
+ "cploop:" \
+ "movq mm0, [edx]" \
+ "movq [ebx], mm0" \
+ "add edx, 8" \
+ "add ebx, 8" \
+ "dec ecx" \
+ "jnz cploop" \
+ "emms" \
+ parm[ebx][edx][ecx] \
+ modify[8087];
+#else
+#define memcpy64(dest, src, count) memcpy(dest, src, (count) << 3)
+#endif
+
+void perf_start(void);
+#pragma aux perf_start = \
+ "xor eax, eax" \
+ "cpuid" \
+ "rdtsc" \
+ "mov [perf_start_count], eax" \
+ modify[eax ebx ecx edx];
+
+void perf_end(void);
+#pragma aux perf_end = \
+ "xor eax, eax" \
+ "cpuid" \
+ "rdtsc" \
+ "sub eax, [perf_start_count]" \
+ "mov [perf_interval_count], eax" \
+ modify [eax ebx ecx edx];
+
+void debug_break(void);
+#pragma aux debug_break = "int 3";
+#endif
+
+#ifdef __GNUC__
+#if defined(__i386__) || defined(__x86_64__)
+#define memset16(dest, val, count) asm volatile ( \
+ "cld\n\t" \
+ "test $1, %2\n\t" \
+ "jz 0f\n\t" \
+ "rep stosw\n\t" \
+ "jmp 1f\n\t" \
+ "0:\n\t" \
+ "shr $1, %2\n\t" \
+ "push %%ax\n\t" \
+ "shl $16, %%eax\n\t" \
+ "pop %%ax\n\t" \
+ "rep stosl\n\t" \
+ "1:\n\t"\
+ :: "D"(dest), "a"((uint16_t)(val)), "c"(count) \
+ : "memory")
+#else
+static void INLINE memset16(void *dest, uint16_t val, int count)
+{
+ uint16_t *ptr = dest;
+ while(count--) *ptr++ = val;
+}
+#endif
+
+#ifdef USE_MMX
+#define memcpy64(dest, src, count) asm volatile ( \
+ "0:\n\t" \
+ "movq (%1), %%mm0\n\t" \
+ "movq %%mm0, (%0)\n\t" \
+ "add $8, %1\n\t" \
+ "add $8, %0\n\t" \
+ "dec %2\n\t" \
+ "jnz 0b\n\t" \
+ "emms\n\t" \
+ :: "r"(dest), "r"(src), "r"(count) \
+ : "%mm0")
+#else
+#define memcpy64(dest, src, count) memcpy(dest, src, (count) << 3)
+#endif
+
+#define perf_start() asm volatile ( \
+ "xor %%eax, %%eax\n" \
+ "cpuid\n" \
+ "rdtsc\n" \
+ "mov %%eax, %0\n" \
+ : "=m"(perf_start_count) \
+ :: "%eax", "%ebx", "%ecx", "%edx")
+
+#define perf_end() asm volatile ( \
+ "xor %%eax, %%eax\n" \
+ "cpuid\n" \
+ "rdtsc\n" \
+ "sub %1, %%eax\n" \
+ "mov %%eax, %0\n" \
+ : "=m"(perf_interval_count) \
+ : "m"(perf_start_count) \
+ : "%eax", "%ebx", "%ecx", "%edx")
+
+#define debug_break() \
+ asm volatile ("int $3")
+#endif
+
+#ifdef _MSC_VER
+void __inline memset16(void *dest, uint16_t val, int count)
+{
+ __asm {
+ cld
+ mov ax, val
+ mov edi, dest
+ mov ecx, count
+ test ecx, 1
+ jz memset16_dwords
+ rep stosw
+ jmp memset16_done
+ memset16_dwords:
+ shr ecx, 1
+ push ax
+ shl eax, 16
+ pop ax
+ rep stosd
+ memset16_done:
+ }
+}
+
+#define perf_start() \
+ do { \
+ __asm { \
+ xor eax, eax \
+ cpuid \
+ rdtsc \
+ mov [perf_start_count], eax \
+ } \
+ } while(0)
+
+#define perf_end() \
+ do { \
+ __asm { \
+ xor eax, eax \
+ cpuid \
+ rdtsc \
+ sub eax, [perf_start_count] \
+ mov [perf_interval_count], eax \
+ } \
+ } while(0)
+
+#define debug_break() \
+ do { \
+ __asm { int 3 } \
+ } while(0)
+#endif
+
+struct cpuid_info {
+ uint32_t maxidx; /* 0: eax */
+ char vendor[12]; /* 0: ebx, edx, ecx */
+ uint32_t id; /* 1: eax */
+ uint32_t rsvd0; /* 1: ebx */
+ uint32_t feat; /* 1: edx */
+ uint32_t feat2; /* 1: ecx */
+};
+
+#define CPUID_STEPPING(id) ((id) & 0xf)
+#define CPUID_MODEL(id) (((id) >> 4) & 0xf)
+#define CPUID_FAMILY(id) (((id) >> 8) & 0xf)
+
+#define CPUID_FEAT_FPU 0x00000001
+#define CPUID_FEAT_VME 0x00000002
+#define CPUID_FEAT_DBGEXT 0x00000004
+#define CPUID_FEAT_PSE 0x00000008
+#define CPUID_FEAT_TSC 0x00000010
+#define CPUID_FEAT_MSR 0x00000020
+#define CPUID_FEAT_PAE 0x00000040
+#define CPUID_FEAT_MCE 0x00000080
+#define CPUID_FEAT_CX8 0x00000100
+#define CPUID_FEAT_APIC 0x00000200
+#define CPUID_FEAT_SEP 0x00000800
+#define CPUID_FEAT_MTRR 0x00001000
+#define CPUID_FEAT_PGE 0x00002000
+#define CPUID_FEAT_MCA 0x00004000
+#define CPUID_FEAT_CMOV 0x00008000
+#define CPUID_FEAT_PAT 0x00010000
+#define CPUID_FEAT_PSE36 0x00020000
+#define CPUID_FEAT_PSN 0x00040000
+#define CPUID_FEAT_CLF 0x00080000
+#define CPUID_FEAT_DTES 0x00200000
+#define CPUID_FEAT_ACPI 0x00400000
+#define CPUID_FEAT_MMX 0x00800000
+#define CPUID_FEAT_FXSR 0x01000000
+#define CPUID_FEAT_SSE 0x02000000
+#define CPUID_FEAT_SSE2 0x04000000
+#define CPUID_FEAT_SS 0x08000000
+#define CPUID_FEAT_HTT 0x10000000
+#define CPUID_FEAT_TM1 0x20000000
+#define CPUID_FEAT_IA64 0x40000000
+#define CPUID_FEAT_PBE 0x80000000
+
+#define CPUID_FEAT2_SSE3 0x00000001
+#define CPUID_FEAT2_PCLMUL 0x00000002
+#define CPUID_FEAT2_DTES64 0x00000004
+#define CPUID_FEAT2_MONITOR 0x00000008
+#define CPUID_FEAT2_DS_CPL 0x00000010
+#define CPUID_FEAT2_VMX 0x00000020
+#define CPUID_FEAT2_SMX 0x00000040
+#define CPUID_FEAT2_EST 0x00000080
+#define CPUID_FEAT2_TM2 0x00000100
+#define CPUID_FEAT2_SSSE3 0x00000200
+#define CPUID_FEAT2_CID 0x00000400
+#define CPUID_FEAT2_FMA 0x00001000
+#define CPUID_FEAT2_CX16 0x00002000
+#define CPUID_FEAT2_ETPRD 0x00004000
+#define CPUID_FEAT2_PDCM 0x00008000
+#define CPUID_FEAT2_PCIDE 0x00020000
+#define CPUID_FEAT2_DCA 0x00040000
+#define CPUID_FEAT2_SSE41 0x00080000
+#define CPUID_FEAT2_SSE42 0x00100000
+#define CPUID_FEAT2_X2APIC 0x00200000
+#define CPUID_FEAT2_MOVBE 0x00400000
+#define CPUID_FEAT2_POPCNT 0x00800000
+#define CPUID_FEAT2_AES 0x02000000
+#define CPUID_FEAT2_XSAVE 0x04000000
+#define CPUID_FEAT2_OSXSAVE 0x08000000
+#define CPUID_FEAT2_AVX 0x10000000
+
+int read_cpuid(struct cpuid_info *info);
+
#endif /* UTIL_H_ */
projects / retrobench / blobdiff