Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 26 | pmbaty | 1 | /* ACC -- Automatic Compiler Configuration |
| 2 | |||
| 3 | Copyright (C) 1996-2004 Markus Franz Xaver Johannes Oberhumer |
||
| 4 | All Rights Reserved. |
||
| 5 | |||
| 6 | This software is a copyrighted work licensed under the terms of |
||
| 7 | the GNU General Public License. Please consult the file "ACC_LICENSE" |
||
| 8 | for details. |
||
| 9 | |||
| 10 | Markus F.X.J. Oberhumer |
||
| 11 | <markus@oberhumer.com> |
||
| 12 | http://www.oberhumer.com/ |
||
| 13 | */ |
||
| 14 | |||
| 15 | |||
| 16 | #define __ACCLIB_RDTSC_CH_INCLUDED 1 |
||
| 17 | #if !defined(ACCLIB_PUBLIC) |
||
| 18 | # define ACCLIB_PUBLIC(r,f) r __ACCLIB_FUNCNAME(f) |
||
| 19 | #endif |
||
| 20 | |||
| 21 | #if defined(acc_int32e_t) |
||
| 22 | |||
| 23 | |||
| 24 | #if ((ACC_ARCH_AMD64 || ACC_ARCH_IA32) && ACC_CC_GNUC) |
||
| 25 | # if (ACC_CC_GNUC >= 0x020000ul) |
||
| 26 | # define __ACCLIB_RDTSC_REGS : : "r" (t) : "cc", "memory", "eax", "edx" |
||
| 27 | # else |
||
| 28 | # define __ACCLIB_RDTSC_REGS : : "r" (t) : "ax", "dx" |
||
| 29 | # endif |
||
| 30 | #elif (ACC_ARCH_IA32 && ACC_CC_INTELC) && defined(__linux__) |
||
| 31 | # define __ACCLIB_RDTSC_REGS : : "r" (t) : "memory", "eax", "edx" |
||
| 32 | #endif |
||
| 33 | |||
| 34 | |||
| 35 | /************************************************************************* |
||
| 36 | // read TSC |
||
| 37 | **************************************************************************/ |
||
| 38 | |||
| 39 | ACCLIB_PUBLIC(int, acc_tsc_read) (acc_uint32e_t* t) |
||
| 40 | { |
||
| 41 | #if (ACC_ARCH_AMD64 || ACC_ARCH_IA32) && defined(__ACCLIB_RDTSC_REGS) |
||
| 42 | __asm__ __volatile__( |
||
| 43 | "clc \n" ".byte 0x0f, 0x31\n" |
||
| 44 | "movl %%eax,(%0)\n" "movl %%edx,4(%0)\n" |
||
| 45 | __ACCLIB_RDTSC_REGS |
||
| 46 | ); |
||
| 47 | return 0; |
||
| 48 | #elif (ACC_ARCH_IA32 && (ACC_OS_DOS32 || ACC_OS_WIN32) && (ACC_CC_DMC || ACC_CC_INTELC || ACC_CC_MSC || ACC_CC_PELLESC)) |
||
| 49 | ACC_UNUSED(t); |
||
| 50 | __asm { |
||
| 51 | mov ecx, t |
||
| 52 | clc |
||
| 53 | # if (ACC_CC_MSC && (_MSC_VER < 1200)) |
||
| 54 | _emit 0x0f |
||
| 55 | _emit 0x31 |
||
| 56 | # else |
||
| 57 | rdtsc |
||
| 58 | # endif |
||
| 59 | mov [ecx], eax |
||
| 60 | mov [ecx+4], edx |
||
| 61 | } |
||
| 62 | return 0; |
||
| 63 | #else |
||
| 64 | t[0] = t[1] = 0; |
||
| 65 | return -1; |
||
| 66 | #endif |
||
| 67 | } |
||
| 68 | |||
| 69 | |||
| 70 | /************************************************************************* |
||
| 71 | // read and add TSC |
||
| 72 | **************************************************************************/ |
||
| 73 | |||
| 74 | ACCLIB_PUBLIC(int, acc_tsc_read_add) (acc_uint32e_t* t) |
||
| 75 | { |
||
| 76 | #if (ACC_ARCH_AMD64 || ACC_ARCH_IA32) && defined(__ACCLIB_RDTSC_REGS) |
||
| 77 | __asm__ __volatile__( |
||
| 78 | "clc \n" ".byte 0x0f, 0x31\n" |
||
| 79 | "addl %%eax,(%0)\n" "adcl $0,%%edx\n" "addl %%edx,4(%0)\n" |
||
| 80 | __ACCLIB_RDTSC_REGS |
||
| 81 | ); |
||
| 82 | return 0; |
||
| 83 | #elif (ACC_ARCH_IA32 && (ACC_OS_DOS32 || ACC_OS_WIN32) && (ACC_CC_DMC || ACC_CC_INTELC || ACC_CC_MSC || ACC_CC_PELLESC)) |
||
| 84 | ACC_UNUSED(t); |
||
| 85 | __asm { |
||
| 86 | mov ecx, t |
||
| 87 | clc |
||
| 88 | # if (ACC_CC_MSC && (_MSC_VER < 1200)) |
||
| 89 | _emit 0x0f |
||
| 90 | _emit 0x31 |
||
| 91 | # else |
||
| 92 | rdtsc |
||
| 93 | # endif |
||
| 94 | add [ecx], eax |
||
| 95 | adc edx, 0 |
||
| 96 | add [ecx+4], edx |
||
| 97 | } |
||
| 98 | return 0; |
||
| 99 | #else |
||
| 100 | acc_uint32e_t v[2]; |
||
| 101 | int r; |
||
| 102 | r = acc_tsc_read(v); |
||
| 103 | t[0] += v[0]; |
||
| 104 | if (t[0] < v[0]) t[1] += 1; |
||
| 105 | t[1] += v[1]; |
||
| 106 | return r; |
||
| 107 | #endif |
||
| 108 | } |
||
| 109 | |||
| 110 | |||
| 111 | #endif /* defined(acc_int32e_t) */ |
||
| 112 | |||
| 113 | |||
| 114 | /* |
||
| 115 | vi:ts=4:et |
||
| 116 | */ |