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annotate src/cpuinfo/SDL_cpuinfo.c @ 1691:c901fd2a42da SDL-1.3

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I think this fixes bug #244
author Sam Lantinga <slouken@libsdl.org>
date Tue, 20 Jun 2006 05:40:57 +0000
parents 4da1ee79c9af
children
rev   line source
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
1 /*
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1229
diff changeset
3 Copyright (C) 1997-2006 Sam Lantinga
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
4
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1229
diff changeset
6 modify it under the terms of the GNU Lesser General Public
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1229
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
9
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1229
diff changeset
13 Lesser General Public License for more details.
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
14
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1229
diff changeset
15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1229
diff changeset
16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1229
diff changeset
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
18
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
19 Sam Lantinga
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
20 slouken@libsdl.org
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
21 */
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
22 #include "SDL_config.h"
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
23
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
24 /* CPU feature detection for SDL */
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
25
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
26 #include "SDL.h"
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
27 #include "SDL_cpuinfo.h"
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
28
1590
96d8c3fec479 Don't detect Altivec on MacOS X Intel
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
29 #if defined(__MACOSX__) && defined(__ppc__)
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
30 #include <sys/sysctl.h> /* For AltiVec check */
1487
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
31 #elif SDL_ALTIVEC_BLITTERS && HAVE_SETJMP
793
c20f08c4f437 Altivec detection on non-MacOS X systems
Sam Lantinga <slouken@libsdl.org>
parents: 787
diff changeset
32 #include <signal.h>
c20f08c4f437 Altivec detection on non-MacOS X systems
Sam Lantinga <slouken@libsdl.org>
parents: 787
diff changeset
33 #include <setjmp.h>
c20f08c4f437 Altivec detection on non-MacOS X systems
Sam Lantinga <slouken@libsdl.org>
parents: 787
diff changeset
34 #endif
c20f08c4f437 Altivec detection on non-MacOS X systems
Sam Lantinga <slouken@libsdl.org>
parents: 787
diff changeset
35
745
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
36 #define CPU_HAS_RDTSC 0x00000001
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
37 #define CPU_HAS_MMX 0x00000002
785
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
38 #define CPU_HAS_MMXEXT 0x00000004
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
39 #define CPU_HAS_3DNOW 0x00000010
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
40 #define CPU_HAS_3DNOWEXT 0x00000020
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
41 #define CPU_HAS_SSE 0x00000040
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
42 #define CPU_HAS_SSE2 0x00000080
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
43 #define CPU_HAS_ALTIVEC 0x00000100
745
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
44
1487
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
45 #if SDL_ALTIVEC_BLITTERS && HAVE_SETJMP && !__MACOSX__
793
c20f08c4f437 Altivec detection on non-MacOS X systems
Sam Lantinga <slouken@libsdl.org>
parents: 787
diff changeset
46 /* This is the brute force way of detecting instruction sets...
c20f08c4f437 Altivec detection on non-MacOS X systems
Sam Lantinga <slouken@libsdl.org>
parents: 787
diff changeset
47 the idea is borrowed from the libmpeg2 library - thanks!
c20f08c4f437 Altivec detection on non-MacOS X systems
Sam Lantinga <slouken@libsdl.org>
parents: 787
diff changeset
48 */
c20f08c4f437 Altivec detection on non-MacOS X systems
Sam Lantinga <slouken@libsdl.org>
parents: 787
diff changeset
49 static jmp_buf jmpbuf;
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
50 static void
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
51 illegal_instruction(int sig)
793
c20f08c4f437 Altivec detection on non-MacOS X systems
Sam Lantinga <slouken@libsdl.org>
parents: 787
diff changeset
52 {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
53 longjmp(jmpbuf, 1);
793
c20f08c4f437 Altivec detection on non-MacOS X systems
Sam Lantinga <slouken@libsdl.org>
parents: 787
diff changeset
54 }
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
55 #endif /* HAVE_SETJMP */
793
c20f08c4f437 Altivec detection on non-MacOS X systems
Sam Lantinga <slouken@libsdl.org>
parents: 787
diff changeset
56
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
57 static __inline__ int
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
58 CPU_haveCPUID(void)
745
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
59 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
60 int has_CPUID = 0;
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
61 /* *INDENT-OFF* */
745
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
62 #if defined(__GNUC__) && defined(i386)
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
63 __asm__ (
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
64 " pushfl # Get original EFLAGS \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
65 " popl %%eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
66 " movl %%eax,%%ecx \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
67 " xorl $0x200000,%%eax # Flip ID bit in EFLAGS \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
68 " pushl %%eax # Save new EFLAGS value on stack \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
69 " popfl # Replace current EFLAGS value \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
70 " pushfl # Get new EFLAGS \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
71 " popl %%eax # Store new EFLAGS in EAX \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
72 " xorl %%ecx,%%eax # Can not toggle ID bit, \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
73 " jz 1f # Processor=80486 \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
74 " movl $1,%0 # We have CPUID support \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
75 "1: \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
76 : "=m" (has_CPUID)
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
77 :
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
78 : "%eax", "%ecx"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
79 );
881
9eb85a211abd Date: Tue, 30 Mar 2004 18:18:13 -0600
Sam Lantinga <slouken@libsdl.org>
parents: 804
diff changeset
80 #elif defined(__GNUC__) && defined(__x86_64__)
9eb85a211abd Date: Tue, 30 Mar 2004 18:18:13 -0600
Sam Lantinga <slouken@libsdl.org>
parents: 804
diff changeset
81 /* Technically, if this is being compiled under __x86_64__ then it has
9eb85a211abd Date: Tue, 30 Mar 2004 18:18:13 -0600
Sam Lantinga <slouken@libsdl.org>
parents: 804
diff changeset
82 CPUid by definition. But it's nice to be able to prove it. :) */
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
83 __asm__ (
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
84 " pushfq # Get original EFLAGS \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
85 " popq %%rax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
86 " movq %%rax,%%rcx \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
87 " xorl $0x200000,%%eax # Flip ID bit in EFLAGS \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
88 " pushq %%rax # Save new EFLAGS value on stack \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
89 " popfq # Replace current EFLAGS value \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
90 " pushfq # Get new EFLAGS \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
91 " popq %%rax # Store new EFLAGS in EAX \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
92 " xorl %%ecx,%%eax # Can not toggle ID bit, \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
93 " jz 1f # Processor=80486 \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
94 " movl $1,%0 # We have CPUID support \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
95 "1: \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
96 : "=m" (has_CPUID)
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
97 :
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
98 : "%rax", "%rcx"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
99 );
1442
e3242177fe4a Updated OS/2 build, yay!
Sam Lantinga <slouken@libsdl.org>
parents: 1426
diff changeset
100 #elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
101 __asm {
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
102 pushfd ; Get original EFLAGS
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
103 pop eax
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
104 mov ecx, eax
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
105 xor eax, 200000h ; Flip ID bit in EFLAGS
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
106 push eax ; Save new EFLAGS value on stack
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
107 popfd ; Replace current EFLAGS value
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
108 pushfd ; Get new EFLAGS
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
109 pop eax ; Store new EFLAGS in EAX
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
110 xor eax, ecx ; Can not toggle ID bit,
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
111 jz done ; Processor=80486
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
112 mov has_CPUID,1 ; We have CPUID support
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
113 done:
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
114 }
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
115 #elif defined(__sun) && defined(__i386)
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
116 __asm (
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
117 " pushfl \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
118 " popl %eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
119 " movl %eax,%ecx \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
120 " xorl $0x200000,%eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
121 " pushl %eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
122 " popfl \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
123 " pushfl \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
124 " popl %eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
125 " xorl %ecx,%eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
126 " jz 1f \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
127 " movl $1,-8(%ebp) \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
128 "1: \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
129 );
1229
1430f5fe092a Patch from Michael Bonfils to add CPUID support for x86 Solaris.
Ryan C. Gordon <icculus@icculus.org>
parents: 1198
diff changeset
130 #elif defined(__sun) && defined(__amd64)
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
131 __asm (
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
132 " pushfq \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
133 " popq %rax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
134 " movq %rax,%rcx \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
135 " xorl $0x200000,%eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
136 " pushq %rax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
137 " popfq \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
138 " pushfq \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
139 " popq %rax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
140 " xorl %ecx,%eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
141 " jz 1f \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
142 " movl $1,-8(%rbp) \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
143 "1: \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
144 );
745
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
145 #endif
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
146 /* *INDENT-ON* */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
147 return has_CPUID;
745
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
148 }
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
149
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
150 static __inline__ int
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
151 CPU_getCPUIDFeatures(void)
745
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
152 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
153 int features = 0;
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
154 /* *INDENT-OFF* */
881
9eb85a211abd Date: Tue, 30 Mar 2004 18:18:13 -0600
Sam Lantinga <slouken@libsdl.org>
parents: 804
diff changeset
155 #if defined(__GNUC__) && ( defined(i386) || defined(__x86_64__) )
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
156 __asm__ (
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
157 " movl %%ebx,%%edi\n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
158 " xorl %%eax,%%eax # Set up for CPUID instruction \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
159 " cpuid # Get and save vendor ID \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
160 " cmpl $1,%%eax # Make sure 1 is valid input for CPUID\n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
161 " jl 1f # We dont have the CPUID instruction\n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
162 " xorl %%eax,%%eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
163 " incl %%eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
164 " cpuid # Get family/model/stepping/features\n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
165 " movl %%edx,%0 \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
166 "1: \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
167 " movl %%edi,%%ebx\n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
168 : "=m" (features)
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
169 :
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
170 : "%eax", "%ecx", "%edx", "%edi"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
171 );
1442
e3242177fe4a Updated OS/2 build, yay!
Sam Lantinga <slouken@libsdl.org>
parents: 1426
diff changeset
172 #elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
173 __asm {
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
174 xor eax, eax ; Set up for CPUID instruction
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
175 cpuid ; Get and save vendor ID
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
176 cmp eax, 1 ; Make sure 1 is valid input for CPUID
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
177 jl done ; We dont have the CPUID instruction
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
178 xor eax, eax
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
179 inc eax
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
180 cpuid ; Get family/model/stepping/features
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
181 mov features, edx
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
182 done:
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
183 }
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
184 #elif defined(__sun) && (defined(__i386) || defined(__amd64))
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
185 __asm(
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
186 " movl %ebx,%edi\n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
187 " xorl %eax,%eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
188 " cpuid \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
189 " cmpl $1,%eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
190 " jl 1f \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
191 " xorl %eax,%eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
192 " incl %eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
193 " cpuid \n"
1229
1430f5fe092a Patch from Michael Bonfils to add CPUID support for x86 Solaris.
Ryan C. Gordon <icculus@icculus.org>
parents: 1198
diff changeset
194 #ifdef __i386
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
195 " movl %edx,-8(%ebp) \n"
1229
1430f5fe092a Patch from Michael Bonfils to add CPUID support for x86 Solaris.
Ryan C. Gordon <icculus@icculus.org>
parents: 1198
diff changeset
196 #else
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
197 " movl %edx,-8(%rbp) \n"
1229
1430f5fe092a Patch from Michael Bonfils to add CPUID support for x86 Solaris.
Ryan C. Gordon <icculus@icculus.org>
parents: 1198
diff changeset
198 #endif
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
199 "1: \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
200 " movl %edi,%ebx\n" );
745
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
201 #endif
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
202 /* *INDENT-ON* */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
203 return features;
745
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
204 }
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
205
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
206 static __inline__ int
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
207 CPU_getCPUIDFeaturesExt(void)
785
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
208 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
209 int features = 0;
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
210 /* *INDENT-OFF* */
881
9eb85a211abd Date: Tue, 30 Mar 2004 18:18:13 -0600
Sam Lantinga <slouken@libsdl.org>
parents: 804
diff changeset
211 #if defined(__GNUC__) && (defined(i386) || defined (__x86_64__) )
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
212 __asm__ (
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
213 " movl %%ebx,%%edi\n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
214 " movl $0x80000000,%%eax # Query for extended functions \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
215 " cpuid # Get extended function limit \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
216 " cmpl $0x80000001,%%eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
217 " jl 1f # Nope, we dont have function 800000001h\n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
218 " movl $0x80000001,%%eax # Setup extended function 800000001h\n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
219 " cpuid # and get the information \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
220 " movl %%edx,%0 \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
221 "1: \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
222 " movl %%edi,%%ebx\n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
223 : "=m" (features)
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
224 :
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
225 : "%eax", "%ecx", "%edx", "%edi"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
226 );
1442
e3242177fe4a Updated OS/2 build, yay!
Sam Lantinga <slouken@libsdl.org>
parents: 1426
diff changeset
227 #elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
228 __asm {
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
229 mov eax,80000000h ; Query for extended functions
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
230 cpuid ; Get extended function limit
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
231 cmp eax,80000001h
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
232 jl done ; Nope, we dont have function 800000001h
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
233 mov eax,80000001h ; Setup extended function 800000001h
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
234 cpuid ; and get the information
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
235 mov features,edx
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
236 done:
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
237 }
1229
1430f5fe092a Patch from Michael Bonfils to add CPUID support for x86 Solaris.
Ryan C. Gordon <icculus@icculus.org>
parents: 1198
diff changeset
238 #elif defined(__sun) && ( defined(__i386) || defined(__amd64) )
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
239 __asm (
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
240 " movl %ebx,%edi\n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
241 " movl $0x80000000,%eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
242 " cpuid \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
243 " cmpl $0x80000001,%eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
244 " jl 1f \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
245 " movl $0x80000001,%eax \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
246 " cpuid \n"
1229
1430f5fe092a Patch from Michael Bonfils to add CPUID support for x86 Solaris.
Ryan C. Gordon <icculus@icculus.org>
parents: 1198
diff changeset
247 #ifdef __i386
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
248 " movl %edx,-8(%ebp) \n"
1229
1430f5fe092a Patch from Michael Bonfils to add CPUID support for x86 Solaris.
Ryan C. Gordon <icculus@icculus.org>
parents: 1198
diff changeset
249 #else
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
250 " movl %edx,-8(%rbp) \n"
1229
1430f5fe092a Patch from Michael Bonfils to add CPUID support for x86 Solaris.
Ryan C. Gordon <icculus@icculus.org>
parents: 1198
diff changeset
251 #endif
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
252 "1: \n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
253 " movl %edi,%ebx\n"
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
254 );
785
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
255 #endif
1691
c901fd2a42da I think this fixes bug #244
Sam Lantinga <slouken@libsdl.org>
parents: 1668
diff changeset
256 /* *INDENT-ON* */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
257 return features;
785
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
258 }
ca06a994f03c Fixed bugs in CPU feature detection and added extended feature detection
Sam Lantinga <slouken@libsdl.org>
parents: 784
diff changeset
259
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
260 static __inline__ int
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
261 CPU_haveRDTSC(void)
745
71ee03909f42 Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 739
diff changeset
262 {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
263 if (CPU_haveCPUID()) {
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
264 return (CPU_getCPUIDFeatures() & 0x00000010);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
265 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
266 return 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
267 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
268
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
269 static __inline__ int
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
270 CPU_haveMMX(void)
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1590
diff changeset
271 {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
272 if (CPU_haveCPUID()) {
4da1ee79c9af more tweaking indent options
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273 return (CPU_getCPUIDFeatures() & 0x00800000);
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274 }
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275 return 0;
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276 }
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277
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278 static __inline__ int
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279 CPU_haveMMXExt(void)
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280 {
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281 if (CPU_haveCPUID()) {
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282 return (CPU_getCPUIDFeaturesExt() & 0x00400000);
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283 }
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284 return 0;
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285 }
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286
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287 static __inline__ int
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288 CPU_have3DNow(void)
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289 {
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290 if (CPU_haveCPUID()) {
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291 return (CPU_getCPUIDFeaturesExt() & 0x80000000);
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292 }
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293 return 0;
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294 }
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295
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296 static __inline__ int
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297 CPU_have3DNowExt(void)
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298 {
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299 if (CPU_haveCPUID()) {
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300 return (CPU_getCPUIDFeaturesExt() & 0x40000000);
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301 }
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302 return 0;
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303 }
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304
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305 static __inline__ int
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306 CPU_haveSSE(void)
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307 {
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308 if (CPU_haveCPUID()) {
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309 return (CPU_getCPUIDFeatures() & 0x02000000);
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310 }
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311 return 0;
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312 }
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313
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314 static __inline__ int
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315 CPU_haveSSE2(void)
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316 {
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317 if (CPU_haveCPUID()) {
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318 return (CPU_getCPUIDFeatures() & 0x04000000);
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319 }
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320 return 0;
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321 }
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322
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323 static __inline__ int
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324 CPU_haveAltiVec(void)
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325 {
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326 volatile int altivec = 0;
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96d8c3fec479 Don't detect Altivec on MacOS X Intel
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327 #if defined(__MACOSX__) && defined(__ppc__)
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328 int selectors[2] = { CTL_HW, HW_VECTORUNIT };
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329 int hasVectorUnit = 0;
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330 size_t length = sizeof(hasVectorUnit);
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331 int error = sysctl(selectors, 2, &hasVectorUnit, &length, NULL, 0);
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332 if (0 == error)
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333 altivec = (hasVectorUnit != 0);
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
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334 #elif SDL_ALTIVEC_BLITTERS && HAVE_SETJMP
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335 void (*handler) (int sig);
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336 handler = signal(SIGILL, illegal_instruction);
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337 if (setjmp(jmpbuf) == 0) {
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338 asm volatile ("mtspr 256, %0\n\t" "vand %%v0, %%v0, %%v0"::"r" (-1));
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339 altivec = 1;
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340 }
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341 signal(SIGILL, handler);
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342 #endif
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343 return altivec;
778
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344 }
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345
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346 static Uint32 SDL_CPUFeatures = 0xFFFFFFFF;
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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347
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348 static Uint32
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349 SDL_GetCPUFeatures(void)
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350 {
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351 if (SDL_CPUFeatures == 0xFFFFFFFF) {
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352 SDL_CPUFeatures = 0;
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353 if (CPU_haveRDTSC()) {
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354 SDL_CPUFeatures |= CPU_HAS_RDTSC;
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355 }
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356 if (CPU_haveMMX()) {
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357 SDL_CPUFeatures |= CPU_HAS_MMX;
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358 }
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359 if (CPU_haveMMXExt()) {
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360 SDL_CPUFeatures |= CPU_HAS_MMXEXT;
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361 }
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362 if (CPU_have3DNow()) {
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363 SDL_CPUFeatures |= CPU_HAS_3DNOW;
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364 }
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365 if (CPU_have3DNowExt()) {
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366 SDL_CPUFeatures |= CPU_HAS_3DNOWEXT;
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367 }
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368 if (CPU_haveSSE()) {
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369 SDL_CPUFeatures |= CPU_HAS_SSE;
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370 }
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371 if (CPU_haveSSE2()) {
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372 SDL_CPUFeatures |= CPU_HAS_SSE2;
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373 }
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374 if (CPU_haveAltiVec()) {
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375 SDL_CPUFeatures |= CPU_HAS_ALTIVEC;
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376 }
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377 }
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378 return SDL_CPUFeatures;
739
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diff changeset
379 }
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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diff changeset
380
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381 SDL_bool
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382 SDL_HasRDTSC(void)
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383 {
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384 if (SDL_GetCPUFeatures() & CPU_HAS_RDTSC) {
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385 return SDL_TRUE;
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386 }
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387 return SDL_FALSE;
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388 }
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389
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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390 SDL_bool
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391 SDL_HasMMX(void)
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392 {
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393 if (SDL_GetCPUFeatures() & CPU_HAS_MMX) {
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394 return SDL_TRUE;
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395 }
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396 return SDL_FALSE;
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397 }
71ee03909f42 Greatly simplified the SDL CPU info code
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398
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399 SDL_bool
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400 SDL_HasMMXExt(void)
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401 {
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402 if (SDL_GetCPUFeatures() & CPU_HAS_MMXEXT) {
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403 return SDL_TRUE;
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404 }
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405 return SDL_FALSE;
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406 }
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407
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408 SDL_bool
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409 SDL_Has3DNow(void)
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410 {
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411 if (SDL_GetCPUFeatures() & CPU_HAS_3DNOW) {
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412 return SDL_TRUE;
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413 }
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414 return SDL_FALSE;
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415 }
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416
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417 SDL_bool
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418 SDL_Has3DNowExt(void)
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419 {
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420 if (SDL_GetCPUFeatures() & CPU_HAS_3DNOWEXT) {
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421 return SDL_TRUE;
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422 }
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423 return SDL_FALSE;
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424 }
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425
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426 SDL_bool
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427 SDL_HasSSE(void)
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428 {
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429 if (SDL_GetCPUFeatures() & CPU_HAS_SSE) {
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430 return SDL_TRUE;
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431 }
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432 return SDL_FALSE;
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433 }
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434
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435 SDL_bool
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436 SDL_HasSSE2(void)
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437 {
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438 if (SDL_GetCPUFeatures() & CPU_HAS_SSE2) {
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439 return SDL_TRUE;
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440 }
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441 return SDL_FALSE;
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442 }
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443
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444 SDL_bool
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445 SDL_HasAltiVec(void)
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446 {
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447 if (SDL_GetCPUFeatures() & CPU_HAS_ALTIVEC) {
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448 return SDL_TRUE;
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449 }
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450 return SDL_FALSE;
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8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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451 }
8ac3f46f9d09 Date: Tue, 6 Jan 2004 12:42:19 +0100
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diff changeset
452
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453 #ifdef TEST_MAIN
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454
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455 #include <stdio.h>
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456
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457 int
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458 main()
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459 {
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460 printf("RDTSC: %d\n", SDL_HasRDTSC());
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461 printf("MMX: %d\n", SDL_HasMMX());
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462 printf("MMXExt: %d\n", SDL_HasMMXExt());
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463 printf("3DNow: %d\n", SDL_Has3DNow());
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464 printf("3DNowExt: %d\n", SDL_Has3DNowExt());
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465 printf("SSE: %d\n", SDL_HasSSE());
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466 printf("SSE2: %d\n", SDL_HasSSE2());
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467 printf("AltiVec: %d\n", SDL_HasAltiVec());
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468 return 0;
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469 }
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diff changeset
470
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471 #endif /* TEST_MAIN */
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diff changeset
472
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473 /* vi: set ts=4 sw=4 expandtab: */