Mercurial > sdl-ios-xcode
changeset 745:71ee03909f42
Greatly simplified the SDL CPU info code
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 24 Nov 2003 09:16:52 +0000 |
| parents | f601f5c05045 |
| children | 72ef7ce609ef |
| files | include/SDL_cpuinfo.h src/cpuinfo/COPYING.LIB src/cpuinfo/Makefile.am src/cpuinfo/README src/cpuinfo/SDL_cpuinfo.c src/cpuinfo/_cpuinfo.asm src/cpuinfo/_pcihelp.asm src/cpuinfo/cpuinfo.h src/cpuinfo/gcpuinfo.c src/cpuinfo/scitech.mac |
| diffstat | 10 files changed, 169 insertions(+), 2782 deletions(-) [+] |
line wrap: on
line diff
--- a/include/SDL_cpuinfo.h Mon Nov 24 00:21:24 2003 +0000 +++ b/include/SDL_cpuinfo.h Mon Nov 24 09:16:52 2003 +0000 @@ -37,6 +37,10 @@ extern "C" { #endif +/* This function returns true if the CPU has the RDTSC instruction + */ +extern DECLSPEC SDL_bool SDLCALL SDL_HasRDTSC(); + /* This function returns true if the CPU has MMX features */ extern DECLSPEC SDL_bool SDLCALL SDL_HasMMX();
--- a/src/cpuinfo/COPYING.LIB Mon Nov 24 00:21:24 2003 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,438 +0,0 @@ - GNU LIBRARY GENERAL PUBLIC LICENSE - Version 2, June 1991 - - Copyright (C) 1991 Free Software Foundation, Inc. - 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - -[This is the first released version of the library GPL. It is - numbered 2 because it goes with version 2 of the ordinary GPL.] - - Preamble - - The licenses for most software are designed to take away your -freedom to share and change it. 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--- a/src/cpuinfo/Makefile.am Mon Nov 24 00:21:24 2003 +0000 +++ b/src/cpuinfo/Makefile.am Mon Nov 24 09:16:52 2003 +0000 @@ -1,35 +1,8 @@ -########################################################################### -# -# Some consistent rules for building asm files: - -STRIP_FPIC = sh $(top_srcdir)/strip_fPIC.sh - -SUFFIXES = .asm - -.asm.lo: - $(LIBTOOL) --tag=CC --mode=compile $(STRIP_FPIC) $(NASM) -t -D __FLAT__ @NASMFLAGS@ $< -o $*.o - -########################################################################### # The cpuinfo library target noinst_LTLIBRARIES = libcpuinfo.la -if HAVE_NASM -ARCH_SRCS = \ - _cpuinfo.asm \ - _pcihelp.asm -else -ARCH_SRCS = -endif - COMMON_SRCS = \ - cpuinfo.h \ - gcpuinfo.c \ SDL_cpuinfo.c -libcpuinfo_la_SOURCES = $(ARCH_SRCS) $(COMMON_SRCS) - -EXTRA_DIST = \ - COPYING.LIB \ - README - +libcpuinfo_la_SOURCES = $(COMMON_SRCS)
--- a/src/cpuinfo/README Mon Nov 24 00:21:24 2003 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,5 +0,0 @@ -This is a stripped down version of the portable CPU detection code included -in the SciTech SNAP Graphics SDK. It is redistributed under the LGPL license, -which can be found in COPYING.LIB. - -You can visit SciTech Software Inc. at: http://www.scitechsoft.com/
--- a/src/cpuinfo/SDL_cpuinfo.c Mon Nov 24 00:21:24 2003 +0000 +++ b/src/cpuinfo/SDL_cpuinfo.c Mon Nov 24 09:16:52 2003 +0000 @@ -28,16 +28,160 @@ /* CPU feature detection for SDL */ #include "SDL.h" -//#include "SDL_cpuinfo.h" +#include "SDL_cpuinfo.h" + +#define CPU_HAS_RDTSC 0x00000001 +#define CPU_HAS_MMX 0x00000002 +#define CPU_HAS_3DNOW 0x00000004 +#define CPU_HAS_SSE 0x00000008 + +static __inline__ int CPU_haveCPUID() +{ + int has_CPUID = 0; +#if defined(__GNUC__) && defined(i386) + __asm__ ( +"push %%ecx\n" +" pushfl # Get original EFLAGS \n" +" popl %%eax \n" +" movl %%eax,%%ecx \n" +" xorl $0x200000,%%eax # Flip ID bit in EFLAGS \n" +" pushl %%eax # Save new EFLAGS value on stack \n" +" popfl # Replace current EFLAGS value \n" +" pushfl # Get new EFLAGS \n" +" popl %%eax # Store new EFLAGS in EAX \n" +" xorl %%ecx,%%eax # Can not toggle ID bit, \n" +" jz 1f # Processor=80486 \n" +" movl $1,%0 # We have CPUID support \n" +"1: \n" +"pop %%ecx\n" + : "=r" (has_CPUID) + : + : "%eax", "%ecx" + ); +#elif defined(_MSC_VER) + __asm__ { + pushfd ; Get original EFLAGS + pop eax + mov ecx, eax + xor eax, 200000h ; Flip ID bit in EFLAGS + push eax ; Save new EFLAGS value on stack + popfd ; Replace current EFLAGS value + pushfd ; Get new EFLAGS + pop eax ; Store new EFLAGS in EAX + xor eax, ecx ; Can not toggle ID bit, + jz done ; Processor=80486 + mov has_CPUID,1 ; We have CPUID support +done: + } +#endif + return has_CPUID; +} -#define CPU_HAS_MMX 0x00000001 -#define CPU_HAS_3DNOW 0x00000002 -#define CPU_HAS_SSE 0x00000004 +static __inline__ int CPU_getCPUIDFeatures() +{ + int features = 0; +#if defined(__GNUC__) && defined(i386) + __asm__ ( +"push %%ebx\n" +"push %%ecx\n" +"push %%edx\n" +" xorl %%eax,%%eax # Set up for CPUID instruction \n" +" cpuid # Get and save vendor ID \n" +" cmpl $1,%%eax # Make sure 1 is valid input for CPUID\n" +" jl 1f # We dont have the CPUID instruction\n" +" xorl %%eax,%%eax \n" +" incl %%eax \n" +" cpuid # Get family/model/stepping/features\n" +" movl %%edx,%0 \n" +"1: \n" +"pop %%edx\n" +"pop %%ecx\n" +"pop %%ebx\n" + : "=r" (features) + : + : "%eax", "%ebx", "%ecx", "%edx" + ); +#elif defined(_MSC_VER) + __asm__ { + xor eax, eax ; Set up for CPUID instruction + cpuid ; Get and save vendor ID + cmp eax, 1 ; Make sure 1 is valid input for CPUID + jl done ; We dont have the CPUID instruction + xor eax, eax + inc eax + cpuid ; Get family/model/stepping/features + mov features, edx +done: + } +#endif + return features; +} + +static __inline__ int CPU_haveRDTSC() +{ + if ( CPU_haveCPUID() ) { + return (CPU_getCPUIDFeatures() & 0x00000010); + } + return 0; +} -/* These functions come from SciTech's PM library */ -extern int CPU_haveMMX(); -extern int CPU_have3DNow(); -extern int CPU_haveSSE(); +static __inline__ int CPU_haveMMX() +{ + if ( CPU_haveCPUID() ) { + return (CPU_getCPUIDFeatures() & 0x00800000); + } + return 0; +} + +static __inline__ int CPU_have3DNow() +{ + int has_3DNow = 0; +#if defined(__GNUC__) && defined(i386) + __asm__ ( +"push %%ebx\n" +"push %%ecx\n" +"push %%edx\n" +" movl $0x80000000,%%eax # Query for extended functions \n" +" cpuid # Get extended function limit \n" +" cmpl $0x80000001,%%eax \n" +" jbe 1f # Nope, we dont have function 800000001h\n" +" movl $0x80000001,%%eax # Setup extended function 800000001h\n" +" cpuid # and get the information \n" +" testl $0x80000000,%%edx # Bit 31 is set if 3DNow! present \n" +" jz 1f # Nope, we dont have 3DNow support\n" +" movl $1,%0 # Yep, we have 3DNow! support! \n" +"1: \n" +"pop %%edx\n" +"pop %%ecx\n" +"pop %%ebx\n" + : "=r" (has_3DNow) + : + : "%eax", "%ebx", "%ecx", "%edx" + ); +#elif defined(_MSC_VER) + __asm__ { + mov eax,80000000h ; Query for extended functions + cpuid ; Get extended function limit + cmp eax,80000001h + jbe done ; Nope, we dont have function 800000001h + mov eax,80000001h ; Setup extended function 800000001h + cpuid ; and get the information + test edx,80000000h ; Bit 31 is set if 3DNow! present + jz done ; Nope, we dont have 3DNow support + mov has_3DNow,1 ; Yep, we have 3DNow! support! +done: + } +#endif + return has_3DNow; +} + +static __inline__ int CPU_haveSSE() +{ + if ( CPU_haveCPUID() ) { + return (CPU_getCPUIDFeatures() & 0x02000000); + } + return 0; +} static Uint32 SDL_CPUFeatures = 0xFFFFFFFF; @@ -45,6 +189,9 @@ { if ( SDL_CPUFeatures == 0xFFFFFFFF ) { SDL_CPUFeatures = 0; + if ( CPU_haveRDTSC() ) { + SDL_CPUFeatures |= CPU_HAS_RDTSC; + } if ( CPU_haveMMX() ) { SDL_CPUFeatures |= CPU_HAS_MMX; } @@ -58,6 +205,14 @@ return SDL_CPUFeatures; } +SDL_bool SDL_HasRDTSC() +{ + if ( SDL_GetCPUFeatures() & CPU_HAS_RDTSC ) { + return SDL_TRUE; + } + return SDL_FALSE; +} + SDL_bool SDL_HasMMX() { if ( SDL_GetCPUFeatures() & CPU_HAS_MMX ) { @@ -91,6 +246,7 @@ printf("MMX: %d\n", SDL_HasMMX()); printf("3DNow: %d\n", SDL_Has3DNow()); printf("SSE: %d\n", SDL_HasSSE()); + return 0; } #endif /* TEST_MAIN */
--- a/src/cpuinfo/_cpuinfo.asm Mon Nov 24 00:21:24 2003 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,611 +0,0 @@ -;**************************************************************************** -;* -;* SciTech OS Portability Manager Library -;* -;* ======================================================================== -;* -;* Copyright (C) 1991-2002 SciTech Software, Inc. All rights reserved. -;* -;* This file may be distributed and/or modified under the terms of the -;* GNU Lesser General Public License version 2.1 as published by the Free -;* Software Foundation and appearing in the file LICENSE.LGPL included -;* in the packaging of this file. -;* -;* Licensees holding a valid Commercial License for this product from -;* SciTech Software, Inc. may use this file in accordance with the -;* Commercial License Agreement provided with the Software. -;* -;* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING -;* THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR -;* PURPOSE. -;* -;* See http://www.scitechsoft.com/license/ for information about -;* the licensing options available and how to purchase a Commercial -;* License Agreement. -;* -;* Contact license@scitechsoft.com if any conditions of this licensing -;* are not clear to you, or you have questions about licensing options. -;* -;* ======================================================================== -;* -;* Language: NASM -;* Environment: Intel 32 bit Protected Mode. -;* -;* Description: Code to determine the Intel processor type. -;* -;**************************************************************************** - -include "scitech.mac" - -header _cpuinfo - -begdataseg _cpuinfo ; Start of data segment - -cache_id db "01234567890123456" -intel_id db "GenuineIntel" ; Intel vendor ID -cyrix_id db "CyrixInstead" ; Cyrix vendor ID -amd_id db "AuthenticAMD" ; AMD vendor ID -idt_id db "CentaurHauls" ; IDT vendor ID - -CPU_IDT EQU 01000h ; Flag for IDT processors -CPU_Cyrix EQU 02000h ; Flag for Cyrix processors -CPU_AMD EQU 04000h ; Flag for AMD processors -CPU_Intel EQU 08000h ; Flag for Intel processors - -enddataseg _cpuinfo - -begcodeseg _cpuinfo ; Start of code segment - -%macro mCPU_ID 0 -db 00Fh,0A2h -%endmacro - -%macro mRDTSC 0 -db 00Fh,031h -%endmacro - -;---------------------------------------------------------------------------- -; bool _CPU_check80386(void) -;---------------------------------------------------------------------------- -; Determines if we have an i386 processor. -;---------------------------------------------------------------------------- -cprocstart _CPU_check80386 - - enter_c - - xor edx,edx ; EDX = 0, not an 80386 - mov bx, sp - and sp, ~3 - pushfd ; Push original EFLAGS - pop eax ; Get original EFLAGS - mov ecx, eax ; Save original EFLAGS - xor eax, 40000h ; Flip AC bit in EFLAGS - push eax ; Save new EFLAGS value on - ; stack - popfd ; Replace current EFLAGS value - pushfd ; Get new EFLAGS - pop eax ; Store new EFLAGS in EAX - xor eax, ecx ; Can't toggle AC bit, - ; processor=80386 - jnz @@Done ; Jump if not an 80386 processor - inc edx ; We have an 80386 - -@@Done: push ecx - popfd - mov sp, bx - mov eax, edx - leave_c - ret - -cprocend - -;---------------------------------------------------------------------------- -; bool _CPU_check80486(void) -;---------------------------------------------------------------------------- -; Determines if we have an i486 processor. -;---------------------------------------------------------------------------- -cprocstart _CPU_check80486 - - enter_c - -; Distinguish between the i486 and Pentium by the ability to set the ID flag -; in the EFLAGS register. If the ID flag is set, then we can use the CPUID -; instruction to determine the final version of the chip. Otherwise we -; simply have an 80486. - -; Distinguish between the i486 and Pentium by the ability to set the ID flag -; in the EFLAGS register. If the ID flag is set, then we can use the CPUID -; instruction to determine the final version of the chip. Otherwise we -; simply have an 80486. - - pushfd ; Get original EFLAGS - pop eax - mov ecx, eax - xor eax, 200000h ; Flip ID bit in EFLAGS - push eax ; Save new EFLAGS value on stack - popfd ; Replace current EFLAGS value - pushfd ; Get new EFLAGS - pop eax ; Store new EFLAGS in EAX - xor eax, ecx ; Can not toggle ID bit, - jnz @@1 ; Processor=80486 - mov eax,1 ; We dont have a Pentium - jmp @@Done -@@1: mov eax,0 ; We have Pentium or later -@@Done: leave_c - ret - -cprocend - -;---------------------------------------------------------------------------- -; bool _CPU_checkClone(void) -;---------------------------------------------------------------------------- -; Checks if the i386 or i486 processor is a clone or genuine Intel. -;---------------------------------------------------------------------------- -cprocstart _CPU_checkClone - - enter_c - - mov ax,5555h ; Check to make sure this is a 32-bit processor - xor dx,dx - mov cx,2h - div cx ; Perform Division - clc - jnz @@NoClone - jmp @@Clone -@@NoClone: - stc -@@Clone: - pushfd - pop eax ; Get the flags - and eax,1 - xor eax,1 ; EAX=0 is probably Intel, EAX=1 is a Clone - - leave_c - ret - -cprocend - -;---------------------------------------------------------------------------- -; bool _CPU_haveCPUID(void) -;---------------------------------------------------------------------------- -; Determines if we have support for the CPUID instruction. -;---------------------------------------------------------------------------- -cprocstart _CPU_haveCPUID - - enter_c - -ifdef flatmodel - pushfd ; Get original EFLAGS - pop eax - mov ecx, eax - xor eax, 200000h ; Flip ID bit in EFLAGS - push eax ; Save new EFLAGS value on stack - popfd ; Replace current EFLAGS value - pushfd ; Get new EFLAGS - pop eax ; Store new EFLAGS in EAX - xor eax, ecx ; Can not toggle ID bit, - jnz @@1 ; Processor=80486 - mov eax,0 ; We dont have CPUID support - jmp @@Done -@@1: mov eax,1 ; We have CPUID support -else - mov eax,0 ; CPUID requires 32-bit pmode -endif -@@Done: leave_c - ret - -cprocend - -;---------------------------------------------------------------------------- -; uint _CPU_checkCPUID(void) -;---------------------------------------------------------------------------- -; Determines the CPU type using the CPUID instruction. -;---------------------------------------------------------------------------- -cprocstart _CPU_checkCPUID - - enter_c - - xor eax, eax ; Set up for CPUID instruction - mCPU_ID ; Get and save vendor ID - cmp eax, 1 ; Make sure 1 is valid input for CPUID - jl @@Fail ; We dont have the CPUID instruction - xor eax,eax ; Assume vendor is unknown - -; Check for GenuineIntel processors - - LEA_L esi,intel_id - cmp [DWORD esi], ebx - jne @@NotIntel - cmp [DWORD esi+4], edx - jne @@NotIntel - cmp [DWORD esi+8], ecx - jne @@NotIntel - mov eax,CPU_Intel ; Flag that we have GenuineIntel - jmp @@FoundVendor - -; Check for CyrixInstead processors - -@@NotIntel: - LEA_L esi,cyrix_id - cmp [DWORD esi], ebx - jne @@NotCyrix - cmp [DWORD esi+4], edx - jne @@NotCyrix - cmp [DWORD esi+8], ecx - jne @@NotCyrix - mov eax,CPU_Cyrix ; Flag that we have CyrixInstead - jmp @@FoundVendor - -; Check for AuthenticAMD processors - -@@NotCyrix: - LEA_L esi,amd_id - cmp [DWORD esi], ebx - jne @@NotAMD - cmp [DWORD esi+4], edx - jne @@NotAMD - cmp [DWORD esi+8], ecx - jne @@NotAMD - mov eax,CPU_AMD ; Flag that we have AuthenticAMD - jmp @@FoundVendor - -; Check for CentaurHauls processors - -@@NotAMD: - LEA_L esi,idt_id - cmp [DWORD esi], ebx - jne @@NotIDT - cmp [DWORD esi+4], edx - jne @@NotIDT - cmp [DWORD esi+8], ecx - jne @@NotIDT - mov eax,CPU_IDT ; Flag that we have AuthenticIDT - jmp @@FoundVendor - -@@NotIDT: - -@@FoundVendor: - push eax - xor eax, eax - inc eax - mCPU_ID ; Get family/model/stepping/features - and eax, 0F00h - shr eax, 8 ; Isolate CPU family - and eax, 0Fh - cmp eax, 0Fh ; Check for Pentium 4 which is an 0Fh! - jne @@NotP4 - mov eax, 07h ; Change P4 ID to 7 for consistency -@@NotP4: - pop ecx - or eax,ecx ; Combine in the CPU vendor flag -@@Done: leave_c - ret - -@@Fail: xor eax,eax - jmp @@Done - -cprocend - -;---------------------------------------------------------------------------- -; uint _CPU_getCPUIDModel(void) -;---------------------------------------------------------------------------- -; Determines the CPU type using the CPUID instruction. -;---------------------------------------------------------------------------- -cprocstart _CPU_getCPUIDModel - - enter_c - - xor eax, eax ; Set up for CPUID instruction - mCPU_ID ; Get and save vendor ID - cmp eax, 1 ; Make sure 1 is valid input for CPUID - jl @@Fail ; We dont have the CPUID instruction - xor eax, eax - inc eax - mCPU_ID ; Get family/model/stepping/features - and eax, 0F0h - shr eax, 4 ; Isolate model -@@Done: leave_c - ret - -@@Fail: xor eax,eax - jmp @@Done - -cprocend - -;---------------------------------------------------------------------------- -; uint _CPU_getCPUIDStepping(void) -;---------------------------------------------------------------------------- -; Determines the CPU type using the CPUID instruction. -;---------------------------------------------------------------------------- -cprocstart _CPU_getCPUIDStepping - - enter_c - - xor eax, eax ; Set up for CPUID instruction - mCPU_ID ; Get and save vendor ID - cmp eax, 1 ; Make sure 1 is valid input for CPUID - jl @@Fail ; We dont have the CPUID instruction - xor eax, eax - inc eax - mCPU_ID ; Get family/model/stepping/features - and eax, 00Fh ; Isolate stepping -@@Done: leave_c - ret - -@@Fail: xor eax,eax - jmp @@Done - -cprocend - -;---------------------------------------------------------------------------- -; uint _CPU_getCPUIDFeatures(void) -;---------------------------------------------------------------------------- -; Determines the CPU type using the CPUID instruction. -;---------------------------------------------------------------------------- -cprocstart _CPU_getCPUIDFeatures - - enter_c - - xor eax, eax ; Set up for CPUID instruction - mCPU_ID ; Get and save vendor ID - cmp eax, 1 ; Make sure 1 is valid input for CPUID - jl @@Fail ; We dont have the CPUID instruction - xor eax, eax - inc eax - mCPU_ID ; Get family/model/stepping/features - mov eax, edx -@@Done: leave_c - ret - -@@Fail: xor eax,eax - jmp @@Done - -cprocend - -;---------------------------------------------------------------------------- -; uint _CPU_getCacheSize(void) -;---------------------------------------------------------------------------- -; Determines the CPU cache size for Intel processors -;---------------------------------------------------------------------------- -cprocstart _CPU_getCacheSize - - enter_c - xor eax, eax ; Set up for CPUID instruction - mCPU_ID ; Get and save vendor ID - cmp eax,2 ; Make sure 2 is valid input for CPUID - jl @@Fail ; We dont have the CPUID instruction - mov eax,2 - mCPU_ID ; Get cache descriptors - LEA_L esi,cache_id ; Get address of cache ID (-fPIC aware) - shr eax,8 - mov [esi+0],eax - mov [esi+3],ebx - mov [esi+7],ecx - mov [esi+11],edx - xor eax,eax - LEA_L esi,cache_id ; Get address of cache ID (-fPIC aware) - mov edi,15 -@@ScanLoop: - cmp [BYTE esi],41h - mov eax,128 - je @@Done - cmp [BYTE esi],42h - mov eax,256 - je @@Done - cmp [BYTE esi],43h - mov eax,512 - je @@Done - cmp [BYTE esi],44h - mov eax,1024 - je @@Done - cmp [BYTE esi],45h - mov eax,2048 - je @@Done - inc esi - dec edi - jnz @@ScanLoop - -@@Done: leave_c - ret - -@@Fail: xor eax,eax - jmp @@Done - -cprocend - -;---------------------------------------------------------------------------- -; uint _CPU_have3DNow(void) -;---------------------------------------------------------------------------- -; Determines the CPU type using the CPUID instruction. -;---------------------------------------------------------------------------- -cprocstart _CPU_have3DNow - - enter_c - - mov eax,80000000h ; Query for extended functions - mCPU_ID ; Get extended function limit - cmp eax,80000001h - jbe @@Fail ; Nope, we dont have function 800000001h - mov eax,80000001h ; Setup extended function 800000001h - mCPU_ID ; and get the information - test edx,80000000h ; Bit 31 is set if 3DNow! present - jz @@Fail ; Nope, we dont have 3DNow support - mov eax,1 ; Yep, we have 3DNow! support! -@@Done: leave_c - ret - -@@Fail: xor eax,eax - jmp @@Done - -cprocend - -;---------------------------------------------------------------------------- -; ulong _CPU_quickRDTSC(void) -;---------------------------------------------------------------------------- -; Reads the time stamp counter and returns the low order 32-bits -;---------------------------------------------------------------------------- -cprocstart _CPU_quickRDTSC - - mRDTSC - ret - -cprocend - -;---------------------------------------------------------------------------- -; void _CPU_runBSFLoop(ulong interations) -;---------------------------------------------------------------------------- -; Runs a loop of BSF instructions for the specified number of iterations -;---------------------------------------------------------------------------- -cprocstart _CPU_runBSFLoop - - ARG iterations:ULONG - - push _bp - mov _bp,_sp - push _bx - - mov edx,[iterations] - mov eax,80000000h - mov ebx,edx - - ALIGN 4 - -@@loop: bsf ecx,eax - dec ebx - jnz @@loop - - pop _bx - pop _bp - ret - -cprocend - -;---------------------------------------------------------------------------- -; void _CPU_readTimeStamp(CPU_largeInteger *time); -;---------------------------------------------------------------------------- -; Reads the time stamp counter and returns the 64-bit result. -;---------------------------------------------------------------------------- -cprocstart _CPU_readTimeStamp - - mRDTSC - mov ecx,[esp+4] ; Access directly without stack frame - mov [ecx],eax - mov [ecx+4],edx - ret - -cprocend - -;---------------------------------------------------------------------------- -; ulong _CPU_diffTime64(CPU_largeInteger *t1,CPU_largeInteger *t2,CPU_largeInteger *t) -;---------------------------------------------------------------------------- -; Computes the difference between two 64-bit numbers. -;---------------------------------------------------------------------------- -cprocstart _CPU_diffTime64 - - ARG t1:DPTR, t2:DPTR, t:DPTR - - enter_c - - mov ecx,[t2] - mov eax,[ecx] ; EAX := t2.low - mov ecx,[t1] - sub eax,[ecx] - mov edx,eax ; EDX := low difference - mov ecx,[t2] - mov eax,[ecx+4] ; ECX := t2.high - mov ecx,[t1] - sbb eax,[ecx+4] ; EAX := high difference - - mov ebx,[t] ; Store the result - mov [ebx],edx ; Store low part - mov [ebx+4],eax ; Store high part - mov eax,edx ; Return low part -ifndef flatmodel - shld edx,eax,16 ; Return in DX:AX -endif - leave_c - ret - -cprocend - -;---------------------------------------------------------------------------- -; ulong _CPU_calcMicroSec(CPU_largeInteger *count,ulong freq); -;---------------------------------------------------------------------------- -; Computes the value in microseconds for the elapsed time with maximum -; precision. The formula we use is: -; -; us = (((diff * 0x100000) / freq) * 1000000) / 0x100000) -; -; The power of two multiple before the first divide allows us to scale the -; 64-bit difference using simple shifts, and then the divide brings the -; final result into the range to fit into a 32-bit integer. -;---------------------------------------------------------------------------- -cprocstart _CPU_calcMicroSec - - ARG count:DPTR, freq:ULONG - - enter_c - - mov ecx,[count] - mov eax,[ecx] ; EAX := low part - mov edx,[ecx+4] ; EDX := high part - shld edx,eax,20 - shl eax,20 ; diff * 0x100000 - div [DWORD freq] ; (diff * 0x100000) / freq - mov ecx,1000000 - xor edx,edx - mul ecx ; ((diff * 0x100000) / freq) * 1000000) - shrd eax,edx,20 ; ((diff * 0x100000) / freq) * 1000000) / 0x100000 -ifndef flatmodel - shld edx,eax,16 ; Return in DX:AX -endif - leave_c - ret - -cprocend - -;---------------------------------------------------------------------------- -; ulong _CPU_mulDiv(ulong a,ulong b,ulong c); -;---------------------------------------------------------------------------- -; Computes the following with 64-bit integer precision: -; -; result = (a * b) / c -; -;---------------------------------------------------------------------------- -cprocstart _CPU_mulDiv - - ARG a:ULONG, b:ULONG, c:ULONG - - enter_c - mov eax,[a] - imul [ULONG b] - idiv [ULONG c] -ifndef flatmodel - shld edx,eax,16 ; Return in DX:AX -endif - leave_c - ret - -cprocend - -;---------------------------------------------------------------------------- -; int PM_getIOPL(void) -;---------------------------------------------------------------------------- -; Returns current IOPL, callable from any ring, any OS, any day of the week -; (as long as it's 386 compatible). Sort of CPU information too. -;---------------------------------------------------------------------------- -cprocstart PM_getIOPL - - pushfd - pop eax - and eax,0011000000000000b - shr eax,12 - ret - -cprocend - - -endcodeseg _cpuinfo - - END -
--- a/src/cpuinfo/_pcihelp.asm Mon Nov 24 00:21:24 2003 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,339 +0,0 @@ -;**************************************************************************** -;* -;* SciTech OS Portability Manager Library -;* -;* ======================================================================== -;* -;* Copyright (C) 1991-2002 SciTech Software, Inc. All rights reserved. -;* -;* This file may be distributed and/or modified under the terms of the -;* GNU Lesser General Public License version 2.1 as published by the Free -;* Software Foundation and appearing in the file LICENSE.LGPL included -;* in the packaging of this file. -;* -;* Licensees holding a valid Commercial License for this product from -;* SciTech Software, Inc. may use this file in accordance with the -;* Commercial License Agreement provided with the Software. -;* -;* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING -;* THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR -;* PURPOSE. -;* -;* See http://www.scitechsoft.com/license/ for information about -;* the licensing options available and how to purchase a Commercial -;* License Agreement. -;* -;* Contact license@scitechsoft.com if any conditions of this licensing -;* are not clear to you, or you have questions about licensing options. -;* -;* ======================================================================== -;* -;* Language: NASM -;* Environment: Any -;* -;* Description: Helper assembler functions for PCI access module. -;* -;**************************************************************************** - -include "scitech.mac" ; Memory model macros - -header _pcilib - -begcodeseg _pcilib - -ifdef flatmodel - -;---------------------------------------------------------------------------- -; uchar _ASMAPI _BIOS32_service( -; ulong service, -; ulong func, -; ulong *physBase, -; ulong *length, -; ulong *serviceOffset, -; PCIBIOS_entry entry); -;---------------------------------------------------------------------------- -; Call the BIOS32 services directory -;---------------------------------------------------------------------------- -cprocstart _BIOS32_service - - ARG service:ULONG, func:ULONG, physBase:DPTR, len:DPTR, off:DPTR, entry:QWORD - - enter_c - mov eax,[service] - mov ebx,[func] - call far dword [entry] - mov esi,[physBase] - mov [esi],ebx - mov esi,[len] - mov [esi],ecx - mov esi,[off] - mov [esi],edx - leave_c - ret - -cprocend - -endif - -;---------------------------------------------------------------------------- -; ushort _ASMAPI _PCIBIOS_isPresent(ulong i_eax,ulong *o_edx,ushort *oeax, -; uchar *o_cl,PCIBIOS_entry entry) -;---------------------------------------------------------------------------- -; Call the PCI BIOS to determine if it is present. -;---------------------------------------------------------------------------- -cprocstart _PCIBIOS_isPresent - - ARG i_eax:ULONG, o_edx:DPTR, oeax:DPTR, o_cl:DPTR, entry:QWORD - - enter_c - mov eax,[i_eax] -ifdef flatmodel - call far dword [entry] -else - int 1Ah -endif - _les _si,[o_edx] - mov [_ES _si],edx - _les _si,[oeax] - mov [_ES _si],ax - _les _si,[o_cl] - mov [_ES _si],cl - mov ax,bx - leave_c - ret - -cprocend - -;---------------------------------------------------------------------------- -; ulong _PCIBIOS_service(ulong r_eax,ulong r_ebx,ulong r_edi,ulong r_ecx, -; PCIBIOS_entry entry) -;---------------------------------------------------------------------------- -; Call the PCI BIOS services, either via the 32-bit protected mode entry -; point or via the Int 1Ah 16-bit interrupt. -;---------------------------------------------------------------------------- -cprocstart _PCIBIOS_service - - ARG r_eax:ULONG, r_ebx:ULONG, r_edi:ULONG, r_ecx:ULONG, entry:QWORD - - enter_c - mov eax,[r_eax] - mov ebx,[r_ebx] - mov edi,[r_edi] - mov ecx,[r_ecx] -ifdef flatmodel - call far dword [entry] -else - int 1Ah -endif - mov eax,ecx -ifndef flatmodel - shld edx,eax,16 ; Return result in DX:AX -endif - leave_c - ret - -cprocend - -;---------------------------------------------------------------------------- -; int _PCIBIOS_getRouting(PCIRoutingOptionsBuffer *buf,PCIBIOS_entry entry); -;---------------------------------------------------------------------------- -; Get the routing options for PCI devices -;---------------------------------------------------------------------------- -cprocstart _PCIBIOS_getRouting - - ARG buf:DPTR, entry:QWORD - - enter_c - mov eax,0B10Eh - mov bx,0 - _les _di,[buf] -ifdef flatmodel - call far dword [entry] -else - int 1Ah -endif - movzx eax,ah - leave_c - ret - -cprocend - -;---------------------------------------------------------------------------- -; ibool _PCIBIOS_setIRQ(int busDev,int intPin,int IRQ,PCIBIOS_entry entry); -;---------------------------------------------------------------------------- -; Change the IRQ routing for the PCI device -;---------------------------------------------------------------------------- -cprocstart _PCIBIOS_setIRQ - - ARG busDev:UINT, intPin:UINT, IRQ:UINT, entry:QWORD - - enter_c - mov eax,0B10Fh - mov bx,[USHORT busDev] - mov cl,[BYTE intPin] - mov ch,[BYTE IRQ] -ifdef flatmodel - call far dword [entry] -else - int 1Ah -endif - mov eax,1 - jnc @@1 - xor eax,eax ; Function failed! -@@1: leave_c - ret - -cprocend - -;---------------------------------------------------------------------------- -; ulong _PCIBIOS_specialCycle(int bus,ulong data,PCIBIOS_entry entry); -;---------------------------------------------------------------------------- -; Generate a special cycle via the PCI BIOS. -;---------------------------------------------------------------------------- -cprocstart _PCIBIOS_specialCycle - - ARG bus:UINT, data:ULONG, entry:QWORD - - enter_c - mov eax,0B106h - mov bh,[BYTE bus] - mov ecx,[data] -ifdef flatmodel - call far dword [entry] -else - int 1Ah -endif - leave_c - ret - -cprocend - -;---------------------------------------------------------------------------- -; ushort _PCI_getCS(void) -;---------------------------------------------------------------------------- -cprocstart _PCI_getCS - - mov ax,cs - ret - -cprocend - -;---------------------------------------------------------------------------- -; int PM_inpb(int port) -;---------------------------------------------------------------------------- -; Reads a byte from the specified port -;---------------------------------------------------------------------------- -cprocstart PM_inpb - - ARG port:UINT - - push _bp - mov _bp,_sp - xor _ax,_ax - mov _dx,[port] - in al,dx - pop _bp - ret - -cprocend - -;---------------------------------------------------------------------------- -; int PM_inpw(int port) -;---------------------------------------------------------------------------- -; Reads a word from the specified port -;---------------------------------------------------------------------------- -cprocstart PM_inpw - - ARG port:UINT - - push _bp - mov _bp,_sp - xor _ax,_ax - mov _dx,[port] - in ax,dx - pop _bp - ret - -cprocend - -;---------------------------------------------------------------------------- -; ulong PM_inpd(int port) -;---------------------------------------------------------------------------- -; Reads a word from the specified port -;---------------------------------------------------------------------------- -cprocstart PM_inpd - - ARG port:UINT - - push _bp - mov _bp,_sp - mov _dx,[port] - in eax,dx -ifndef flatmodel - shld edx,eax,16 ; DX:AX = result -endif - pop _bp - ret - -cprocend - -;---------------------------------------------------------------------------- -; void PM_outpb(int port,int value) -;---------------------------------------------------------------------------- -; Write a byte to the specified port. -;---------------------------------------------------------------------------- -cprocstart PM_outpb - - ARG port:UINT, value:UINT - - push _bp - mov _bp,_sp - mov _dx,[port] - mov _ax,[value] - out dx,al - pop _bp - ret - -cprocend - -;---------------------------------------------------------------------------- -; void PM_outpw(int port,int value) -;---------------------------------------------------------------------------- -; Write a word to the specified port. -;---------------------------------------------------------------------------- -cprocstart PM_outpw - - ARG port:UINT, value:UINT - - push _bp - mov _bp,_sp - mov _dx,[port] - mov _ax,[value] - out dx,ax - pop _bp - ret - -cprocend - -;---------------------------------------------------------------------------- -; void PM_outpd(int port,ulong value) -;---------------------------------------------------------------------------- -; Write a word to the specified port. -;---------------------------------------------------------------------------- -cprocstart PM_outpd - - ARG port:UINT, value:ULONG - - push _bp - mov _bp,_sp - mov _dx,[port] - mov eax,[value] - out dx,eax - pop _bp - ret - -cprocend - -endcodeseg _pcilib - - END
--- a/src/cpuinfo/cpuinfo.h Mon Nov 24 00:21:24 2003 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,203 +0,0 @@ -/**************************************************************************** -* -* SciTech OS Portability Manager Library -* -* ======================================================================== -* -* Copyright (C) 1991-2002 SciTech Software, Inc. All rights reserved. -* -* This file may be distributed and/or modified under the terms of the -* GNU Lesser General Public License version 2.1 as published by the Free -* Software Foundation and appearing in the file LICENSE.LGPL included -* in the packaging of this file. -* -* Licensees holding a valid Commercial License for this product from -* SciTech Software, Inc. may use this file in accordance with the -* Commercial License Agreement provided with the Software. -* -* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING -* THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR -* PURPOSE. -* -* See http://www.scitechsoft.com/license/ for information about -* the licensing options available and how to purchase a Commercial -* License Agreement. -* -* Contact license@scitechsoft.com if any conditions of this licensing -* are not clear to you, or you have questions about licensing options. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* -* Description: Header file for PM library functions for querying the CPU -* type, CPU speed and CPU features. Includes support for -* high precision timing on Pentium based systems using the -* Read Time Stamp Counter. -* -****************************************************************************/ - -#ifndef __CPUINFO_H -#define __CPUINFO_H - -//#include "scitech.h" -#include "SDL.h" -#ifdef USE_ASMBLIT -#define __INTEL__ -#endif -typedef enum { - false, - true -} ibool; -typedef Uint8 uchar; -typedef Uint16 ushort; -typedef Uint32 uint; -typedef Uint32 ulong; -typedef Uint64 u64; -#define _ASMAPI SDLCALL - -/*--------------------- Macros and type definitions -----------------------*/ - -/* Define the calling conventions - C always */ - -#define ZAPI _ASMAPI - -/**************************************************************************** -REMARKS: -Defines the types of processors returned by CPU_getProcessorType. - -HEADER: -cpuinfo.h - -MEMBERS: -CPU_i386 - Intel 80386 processor -CPU_i486 - Intel 80486 processor -CPU_Pentium - Intel Pentium(R) processor -CPU_PentiumPro - Intel PentiumPro(R) processor -CPU_PentiumII - Intel PentiumII(R) processor -CPU_Celeron - Intel Celeron(R) processor -CPU_PentiumIII - Intel PentiumIII(R) processor -CPU_Pentium4 - Intel Pentium4(R) processor -CPU_UnkIntel - Unknown Intel processor -CPU_Cyrix6x86 - Cyrix 6x86 processor -CPU_Cyrix6x86MX - Cyrix 6x86MX processor -CPU_CyrixMediaGX - Cyrix MediaGX processor -CPU_CyrixMediaGXm - Cyrix MediaGXm processor -CPU_UnkCyrix - Unknown Cyrix processor -CPU_AMDAm486 - AMD Am486 processor -CPU_AMDAm5x86 - AMD Am5x86 processor -CPU_AMDK5 - AMD K5 processor -CPU_AMDK6 - AMD K6 processor -CPU_AMDK6_2 - AMD K6-2 processor -CPU_AMDK6_2plus - AMD K6-2+ processor -CPU_AMDK6_III - AMD K6-III processor -CPU_AMDK6_IIIplus - AMD K6-III+ processor -CPU_AMDAthlon - AMD Athlon processor -CPU_AMDDuron - AMD Duron processor -CPU_UnkAMD - Unknown AMD processor -CPU_WinChipC6 - IDT WinChip C6 processor -CPU_WinChip2 - IDT WinChip 2 processor -CPU_UnkIDT - Unknown IDT processor -CPU_ViaCyrixIII - Via Cyrix III -CPU_UnkVIA - Unknown Via processor -CPU_Alpha - DEC Alpha processor -CPU_Mips - MIPS processor -CPU_PowerPC - PowerPC processor -CPU_mask - Mask to remove flags and get CPU type -CPU_IDT - This bit is set if the processor vendor is IDT -CPU_Cyrix - This bit is set if the processor vendor is Cyrix -CPU_AMD - This bit is set if the processor vendor is AMD -CPU_Intel - This bit is set if the processor vendor is Intel -CPU_VIA - This bit is set if the processor vendor is Via -CPU_familyMask - Mask to isolate CPU family -CPU_steppingMask - Mask to isolate CPU stepping -CPU_steppingShift - Shift factor for CPU stepping -****************************************************************************/ -typedef enum { - CPU_i386 = 0, - CPU_i486 = 1, - CPU_Pentium = 2, - CPU_PentiumPro = 3, - CPU_PentiumII = 4, - CPU_Celeron = 5, - CPU_PentiumIII = 6, - CPU_Pentium4 = 7, - CPU_UnkIntel = 8, - CPU_Cyrix6x86 = 100, - CPU_Cyrix6x86MX = 101, - CPU_CyrixMediaGX = 102, - CPU_CyrixMediaGXm = 104, - CPU_UnkCyrix = 105, - CPU_AMDAm486 = 200, - CPU_AMDAm5x86 = 201, - CPU_AMDK5 = 202, - CPU_AMDK6 = 203, - CPU_AMDK6_2 = 204, - CPU_AMDK6_2plus = 205, - CPU_AMDK6_III = 206, - CPU_AMDK6_IIIplus = 207, - CPU_UnkAMD = 208, - CPU_AMDAthlon = 250, - CPU_AMDDuron = 251, - CPU_WinChipC6 = 300, - CPU_WinChip2 = 301, - CPU_UnkIDT = 302, - CPU_ViaCyrixIII = 400, - CPU_UnkVIA = 401, - CPU_Alpha = 500, - CPU_Mips = 600, - CPU_PowerPC = 700, - CPU_mask = 0x00000FFF, - CPU_IDT = 0x00001000, - CPU_Cyrix = 0x00002000, - CPU_AMD = 0x00004000, - CPU_Intel = 0x00008000, - CPU_VIA = 0x00010000, - CPU_familyMask = 0x00FFF000, - CPU_steppingMask = 0x0F000000, - CPU_steppingShift = 24 - } CPU_processorType; - -#pragma pack(1) -/**************************************************************************** -REMARKS: -Defines the structure for holding 64-bit integers used for storing the values -returned by the Intel RDTSC instruction. - -HEADER: -cpuinfo.h - -MEMBERS: -low - Low 32-bits of the 64-bit integer -high - High 32-bits of the 64-bit integer -****************************************************************************/ -typedef struct { - ulong low; - ulong high; - } CPU_largeInteger; -#pragma pack() - -/*-------------------------- Function Prototypes --------------------------*/ - -#ifdef __cplusplus -extern "C" { /* Use "C" linkage when in C++ mode */ -#endif - -/* Routines to obtain CPU information */ - -uint ZAPI CPU_getProcessorType(void); -ibool ZAPI CPU_haveMMX(void); -ibool ZAPI CPU_have3DNow(void); -ibool ZAPI CPU_haveSSE(void); -ibool ZAPI CPU_haveRDTSC(void); -ulong ZAPI CPU_getProcessorSpeed(ibool accurate); -void ZAPI CPU_getProcessorSpeedInHZ(ibool accurate,CPU_largeInteger *speed); -char * ZAPI CPU_getProcessorName(void); - -#ifdef __cplusplus -} /* End of "C" linkage for C++ */ -#endif - -#endif /* __CPUINFO_H */ -
--- a/src/cpuinfo/gcpuinfo.c Mon Nov 24 00:21:24 2003 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,436 +0,0 @@ -/**************************************************************************** -* -* SciTech OS Portability Manager Library -* -* ======================================================================== -* -* Copyright (C) 1991-2002 SciTech Software, Inc. All rights reserved. -* -* This file may be distributed and/or modified under the terms of the -* GNU Lesser General Public License version 2.1 as published by the Free -* Software Foundation and appearing in the file LICENSE.LGPL included -* in the packaging of this file. -* -* Licensees holding a valid Commercial License for this product from -* SciTech Software, Inc. may use this file in accordance with the -* Commercial License Agreement provided with the Software. -* -* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING -* THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR -* PURPOSE. -* -* See http://www.scitechsoft.com/license/ for information about -* the licensing options available and how to purchase a Commercial -* License Agreement. -* -* Contact license@scitechsoft.com if any conditions of this licensing -* are not clear to you, or you have questions about licensing options. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* -* Description: Main module to implement the Zen Timer support functions. -* -****************************************************************************/ - -#include "cpuinfo.h" -//#include "pmapi.h" -//#include "oshdr.h" - -/*----------------------------- Implementation ----------------------------*/ - -/* External Intel assembler functions */ -#ifdef __INTEL__ -/* {secret} */ -ibool _ASMAPI _CPU_haveCPUID(void); -/* {secret} */ -ibool _ASMAPI _CPU_check80386(void); -/* {secret} */ -ibool _ASMAPI _CPU_check80486(void); -/* {secret} */ -uint _ASMAPI _CPU_checkCPUID(void); -/* {secret} */ -uint _ASMAPI _CPU_getCPUIDModel(void); -/* {secret} */ -uint _ASMAPI _CPU_getCPUIDStepping(void); -/* {secret} */ -uint _ASMAPI _CPU_getCPUIDFeatures(void); -/* {secret} */ -uint _ASMAPI _CPU_getCacheSize(void); -/* {secret} */ -uint _ASMAPI _CPU_have3DNow(void); -/* {secret} */ -ibool _ASMAPI _CPU_checkClone(void); -/* {secret} */ -void _ASMAPI _CPU_readTimeStamp(CPU_largeInteger *time); -/* {secret} */ -void _ASMAPI _CPU_runBSFLoop(ulong iterations); -/* {secret} */ -ulong _ASMAPI _CPU_mulDiv(ulong a,ulong b,ulong c); -/* {secret} */ -#define CPU_HaveMMX 0x00800000 -#define CPU_HaveRDTSC 0x00000010 -#define CPU_HaveSSE 0x02000000 -#endif - -/*------------------------ Public interface routines ----------------------*/ - -#ifdef __INTEL__ -extern Uint8 PM_inpb(int port); -extern void PM_outpb(int port,Uint8 val); - -/**************************************************************************** -REMARKS: -Read an I/O port location. -****************************************************************************/ -static uchar rdinx( - int port, - int index) -{ - PM_outpb(port,(uchar)index); - return PM_inpb(port+1); -} - -/**************************************************************************** -REMARKS: -Write an I/O port location. -****************************************************************************/ -static void wrinx( - ushort port, - ushort index, - ushort value) -{ - PM_outpb(port,(uchar)index); - PM_outpb(port+1,(uchar)value); -} - -/**************************************************************************** -REMARKS: -Enables the Cyrix CPUID instruction to properly detect MediaGX and 6x86 -processors. -****************************************************************************/ -static void _CPU_enableCyrixCPUID(void) -{ - uchar ccr3; - - //PM_init(); - ccr3 = rdinx(0x22,0xC3); - wrinx(0x22,0xC3,(uchar)(ccr3 | 0x10)); - wrinx(0x22,0xE8,(uchar)(rdinx(0x22,0xE8) | 0x80)); - wrinx(0x22,0xC3,ccr3); -} -#endif - -/**************************************************************************** -DESCRIPTION: -Returns the type of processor in the system. - -HEADER: -cpuinfo.h - -RETURNS: -Numerical identifier for the installed processor - -REMARKS: -Returns the type of processor in the system. Note that if the CPU is an -unknown Pentium family processor that we don't have an enumeration for, -the return value will be greater than or equal to the value of CPU_UnkPentium -(depending on the value returned by the CPUID instruction). - -SEE ALSO: -CPU_getProcessorSpeed, CPU_haveMMX, CPU_getProcessorName -****************************************************************************/ -uint ZAPI CPU_getProcessorType(void) -{ -#if defined(__INTEL__) - uint cpu,vendor,model,cacheSize; - static ibool firstTime = true; - - if (_CPU_haveCPUID()) { - cpu = _CPU_checkCPUID(); - vendor = cpu & ~CPU_mask; - if (vendor == CPU_Intel) { - /* Check for Intel processors */ - switch (cpu & CPU_mask) { - case 4: cpu = CPU_i486; break; - case 5: cpu = CPU_Pentium; break; - case 6: - if ((model = _CPU_getCPUIDModel()) == 1) - cpu = CPU_PentiumPro; - else if (model <= 6) { - cacheSize = _CPU_getCacheSize(); - if ((model == 5 && cacheSize == 0) || - (model == 5 && cacheSize == 256) || - (model == 6 && cacheSize == 128)) - cpu = CPU_Celeron; - else - cpu = CPU_PentiumII; - } - else if (model >= 7) { - /* Model 7 == Pentium III */ - /* Model 8 == Celeron/Pentium III Coppermine */ - cacheSize = _CPU_getCacheSize(); - if ((model == 8 && cacheSize == 128)) - cpu = CPU_Celeron; - else - cpu = CPU_PentiumIII; - } - break; - case 7: - cpu = CPU_Pentium4; - break; - default: - cpu = CPU_UnkIntel; - break; - } - } - else if (vendor == CPU_Cyrix) { - /* Check for Cyrix processors */ - switch (cpu & CPU_mask) { - case 4: - if ((model = _CPU_getCPUIDModel()) == 4) - cpu = CPU_CyrixMediaGX; - else - cpu = CPU_UnkCyrix; - break; - case 5: - if ((model = _CPU_getCPUIDModel()) == 2) - cpu = CPU_Cyrix6x86; - else if (model == 4) - cpu = CPU_CyrixMediaGXm; - else - cpu = CPU_UnkCyrix; - break; - case 6: - if ((model = _CPU_getCPUIDModel()) <= 1) - cpu = CPU_Cyrix6x86MX; - else - cpu = CPU_UnkCyrix; - break; - default: - cpu = CPU_UnkCyrix; - break; - } - } - else if (vendor == CPU_AMD) { - /* Check for AMD processors */ - switch (cpu & CPU_mask) { - case 4: - if ((model = _CPU_getCPUIDModel()) == 0) - cpu = CPU_AMDAm5x86; - else - cpu = CPU_AMDAm486; - break; - case 5: - if ((model = _CPU_getCPUIDModel()) <= 3) - cpu = CPU_AMDK5; - else if (model <= 7) - cpu = CPU_AMDK6; - else if (model == 8) - cpu = CPU_AMDK6_2; - else if (model == 9) - cpu = CPU_AMDK6_III; - else if (model == 13) { - if (_CPU_getCPUIDStepping() <= 3) - cpu = CPU_AMDK6_IIIplus; - else - cpu = CPU_AMDK6_2plus; - } - else - cpu = CPU_UnkAMD; - break; - case 6: - if ((model = _CPU_getCPUIDModel()) == 3) - cpu = CPU_AMDDuron; - else - cpu = CPU_AMDAthlon; - break; - default: - cpu = CPU_UnkAMD; - break; - } - } - else if (vendor == CPU_IDT) { - /* Check for IDT WinChip processors */ - switch (cpu & CPU_mask) { - case 5: - if ((model = _CPU_getCPUIDModel()) <= 4) - cpu = CPU_WinChipC6; - else if (model == 8) - cpu = CPU_WinChip2; - else - cpu = CPU_UnkIDT; - break; - case 6: - vendor = CPU_VIA; - if ((model = _CPU_getCPUIDModel()) <= 6) - cpu = CPU_ViaCyrixIII; - else - cpu = CPU_UnkVIA; - break; - default: - vendor = CPU_VIA; - cpu = CPU_UnkVIA; - break; - } - } - else { - /* Assume a Pentium compatible Intel clone */ - cpu = CPU_Pentium; - } - return cpu | vendor | (_CPU_getCPUIDStepping() << CPU_steppingShift); - } - else { - if (_CPU_check80386()) - cpu = CPU_i386; - else if (_CPU_check80486()) { - /* If we get here we may have a Cyrix processor so we can try - * enabling the CPUID instruction and trying again. - */ - if (firstTime) { - firstTime = false; - _CPU_enableCyrixCPUID(); - return CPU_getProcessorType(); - } - cpu = CPU_i486; - } - else - cpu = CPU_Pentium; - if (!_CPU_checkClone()) - return cpu | CPU_Intel; - return cpu; - } -#elif defined(__ALPHA__) - return CPU_Alpha; -#elif defined(__MIPS__) - return CPU_Mips; -#elif defined(__PPC__) - return CPU_PowerPC; -#endif -} - -/**************************************************************************** -DESCRIPTION: -Returns true if the processor supports Intel MMX extensions. - -HEADER: -cpuinfo.h - -RETURNS: -True if MMX is available, false if not. - -REMARKS: -This function determines if the processor supports the Intel MMX extended -instruction set. - -SEE ALSO: -CPU_getProcessorType, CPU_getProcessorSpeed, CPU_have3DNow, CPU_haveSSE, -CPU_getProcessorName -****************************************************************************/ -ibool ZAPI CPU_haveMMX(void) -{ -#ifdef __INTEL__ - if (_CPU_haveCPUID()) - return (_CPU_getCPUIDFeatures() & CPU_HaveMMX) != 0; - return false; -#else - return false; -#endif -} - -/**************************************************************************** -DESCRIPTION: -Returns true if the processor supports AMD 3DNow! extensions. - -HEADER: -cpuinfo.h - -RETURNS: -True if 3DNow! is available, false if not. - -REMARKS: -This function determines if the processor supports the AMD 3DNow! extended -instruction set. - -SEE ALSO: -CPU_getProcessorType, CPU_getProcessorSpeed, CPU_haveMMX, CPU_haveSSE, -CPU_getProcessorName -****************************************************************************/ -ibool ZAPI CPU_have3DNow(void) -{ -#ifdef __INTEL__ - if (_CPU_haveCPUID()) - return _CPU_have3DNow(); - return false; -#else - return false; -#endif -} - -/**************************************************************************** -DESCRIPTION: -Returns true if the processor supports Intel SSE extensions. - -HEADER: -cpuinfo.h - -RETURNS: -True if Intel SSE is available, false if not. - -REMARKS: -This function determines if the processor supports the Intel SSE extended -instruction set. - -SEE ALSO: -CPU_getProcessorType, CPU_getProcessorSpeed, CPU_haveMMX, CPU_have3DNow, -CPU_getProcessorName -****************************************************************************/ -ibool ZAPI CPU_haveSSE(void) -{ -#ifdef __INTEL__ - if (_CPU_haveCPUID()) - return (_CPU_getCPUIDFeatures() & CPU_HaveSSE) != 0; - return false; -#else - return false; -#endif -} - -/**************************************************************************** -RETURNS: -True if the RTSC instruction is available, false if not. - -REMARKS: -This function determines if the processor supports the Intel RDTSC -instruction, for high precision timing. If the processor is not an Intel or -Intel clone CPU, this function will always return false. - -DESCRIPTION: -Returns true if the processor supports RDTSC extensions. - -HEADER: -cpuinfo.h - -RETURNS: -True if RTSC is available, false if not. - -REMARKS: -This function determines if the processor supports the RDTSC instruction -for reading the processor time stamp counter. - -SEE ALSO: -CPU_getProcessorType, CPU_getProcessorSpeed, CPU_haveMMX, CPU_have3DNow, -CPU_getProcessorName -****************************************************************************/ -ibool ZAPI CPU_haveRDTSC(void) -{ -#ifdef __INTEL__ - if (_CPU_haveCPUID()) - return (_CPU_getCPUIDFeatures() & CPU_HaveRDTSC) != 0; - return false; -#else - return false; -#endif -}
--- a/src/cpuinfo/scitech.mac Mon Nov 24 00:21:24 2003 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,714 +0,0 @@ -;**************************************************************************** -;* -;* ======================================================================== -;* -;* Copyright (C) 1991-2002 SciTech Software, Inc. All rights reserved. -;* -;* This file may be distributed and/or modified under the terms of the -;* GNU Lesser General Public License version 2.1 as published by the Free -;* Software Foundation and appearing in the file LICENSE.LGPL included -;* in the packaging of this file. -;* -;* Licensees holding a valid Commercial License for this product from -;* SciTech Software, Inc. may use this file in accordance with the -;* Commercial License Agreement provided with the Software. -;* -;* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING -;* THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR -;* PURPOSE. -;* -;* See http://www.scitechsoft.com/license/ for information about -;* the licensing options available and how to purchase a Commercial -;* License Agreement. -;* -;* Contact license@scitechsoft.com if any conditions of this licensing -;* are not clear to you, or you have questions about licensing options. -;* -;* ======================================================================== -;* -;* Language: NetWide Assembler (NASM) -;* Environment: Any Intel IA32 Environment -;* -;* Description: Macros to provide memory model independant assembly language -;* module for C programming. Supports the large and flat memory -;* models. -;* -;* The defines that you should use when assembling modules that -;* use this macro package are: -;* -;* __FLAT__ Assemble for 32-bit FLAT memory model -;* __NOU__ No underscore for all external C labels -;* __NOU_VAR__ No underscore for global variables only -;* -;* The default settings are for 16-bit large memory model with -;* leading underscores for symbol names. -;* -;**************************************************************************** - -%ifndef SCITECH_MAC -%define SCITECH_MAC - -; Turn off underscores for globals if disabled for all externals - -%ifdef __NOU__ -%define __NOU_VAR__ -%endif - -; Determine if we should use COFF style segment naming - -%ifdef __MSC__ -%define __COFF__ -%endif -%ifdef __GNUC__ -%define __COFF__ -%endif - -; Define the __WINDOWS__ symbol if we are compiling for any Windows -; environment - -%ifdef __WINDOWS16__ -%define __WINDOWS__ 1 -%endif -%ifdef __WINDOWS32__ -%define __WINDOWS__ 1 -%define __WINDOWS32_386__ 1 -%endif - -; Macros for accessing 'generic' registers - -%ifdef __FLAT__ -%idefine _ax eax -%idefine _bx ebx -%idefine _cx ecx -%idefine _dx edx -%idefine _si esi -%idefine _di edi -%idefine _bp ebp -%idefine _sp esp -%idefine _es -%idefine UCHAR BYTE ; Size of a character -%idefine USHORT WORD ; Size of a short -%idefine UINT DWORD ; Size of an integer -%idefine ULONG DWORD ; Size of a long -%idefine BOOL DWORD ; Size of a boolean -%idefine DPTR DWORD ; Size of a data pointer -%idefine FDPTR FWORD ; Size of a far data pointer -%idefine NDPTR DWORD ; Size of a near data pointer -%idefine CPTR DWORD ; Size of a code pointer -%idefine FCPTR FWORD ; Size of a far code pointer -%idefine NCPTR DWORD ; Size of a near code pointer -%idefine FPTR NEAR ; Distance for function pointers -%idefine DUINT dd ; Declare a integer variable -%idefine intsize 4 -%idefine flatmodel 1 -%else -%idefine _ax ax -%idefine _bx bx -%idefine _cx cx -%idefine _dx dx -%idefine _si si -%idefine _di di -%idefine _bp bp -%idefine _sp sp -%idefine _es es: -%idefine UCHAR BYTE ; Size of a character -%idefine USHORT WORD ; Size of a short -%idefine UINT WORD ; Size of an integer -%idefine ULONG DWORD ; Size of a long -%idefine BOOL WORD ; Size of a boolean -%idefine DPTR DWORD ; Size of a data pointer -%idefine FDPTR DWORD ; Size of a far data pointer -%idefine NDPTR WORD ; Size of a near data pointer -%idefine CPTR DWORD ; Size of a code pointer -%idefine FCPTR DWORD ; Size of a far code pointer -%idefine NCPTR WORD ; Size of a near code pointer -%idefine FPTR FAR ; Distance for function pointers -%idefine DUINT dw ; Declare a integer variable -%idefine intsize 2 -%endif -%idefine invert ~ -%idefine offset -%idefine use_nasm - -; Convert all jumps to near jumps, since NASM does not so this automatically - -%idefine jo jo near -%idefine jno jno near -%idefine jz jz near -%idefine jnz jnz near -%idefine je je near -%idefine jne jne near -%idefine jb jb near -%idefine jbe jbe near -%idefine ja ja near -%idefine jae jae near -%idefine jl jl near -%idefine jle jle near -%idefine jg jg near -%idefine jge jge near -%idefine jc jc near -%idefine jnc jnc near -%idefine js js near -%idefine jns jns near - -%ifdef DOUBLE -%idefine REAL QWORD -%idefine DREAL dq -%else -%idefine REAL DWORD -%idefine DREAL dd -%endif - -; Boolean truth values (same as those in debug.h) - -%idefine False 0 -%idefine True 1 -%idefine No 0 -%idefine Yes 1 -%idefine Yes 1 - -; TODO: If we wish to port VxD code to NASM, we will potentially -; need special macros in here to handle this! - -; Setup all correct segment definitions and attributes once at the -; beginning of the assembler module. This allows us to open/close -; code and data segments at will throughout the code as necessary. - -%ifdef __PIC__ -%ifdef __LINUX__ - extern _GLOBAL_OFFSET_TABLE_ -%else - extern __GLOBAL_OFFSET_TABLE_ -%endif -%endif -%ifdef __COFF__ -segment .text public class=CODE use32 flat -segment .data public class=DATA use32 flat -%else -%ifdef flatmodel -segment _TEXT public align=16 class=CODE use32 flat -segment _DATA public align=4 class=DATA use32 flat -%else -segment _TEXT public align=16 class=CODE use16 -segment _DATA public align=4 class=DATA use16 -%endif -%endif - -; Macro to be invoked at the start of all modules to set up segments for -; later use. This does nothing for 32-bit code, but for 16-bit code -; will set up a far model code segment as well for later use. - -%imacro header 1 -%ifndef flatmodel -segment %1_TEXT public align=16 class=CODE use16 -%endif -%endmacro - -; Macro to begin a data segment. Segment attributes were specified in -; the header macro that is always required. - -%imacro begdataseg 1 -%ifdef __COFF__ -segment .data -%else -segment _DATA -%endif -%endmacro - -; Macro to end a data segment - -%imacro enddataseg 1 -%endmacro - -; Macro to begin a code segment - -%imacro begcodeseg 1 -%ifdef __COFF__ -segment .text -%else -%ifdef flatmodel -segment _TEXT -%else -segment %1_TEXT -%endif -%endif -%endmacro - -; Macro to end a code segment - -%imacro endcodeseg 1 -%endmacro - -; Macro to begin a near code segment - -%imacro begcodeseg_near 0 -%ifdef __COFF__ -segment .text -%else -segment _TEXT -%endif -%endmacro - -; Macro to end a near code segment - -%imacro endcodeseg_near 0 -%endmacro - -; Macro for an extern C symbol. If the C compiler requires leading -; underscores, then the underscores are added to the symbol names, otherwise -; they are left off. The symbol name is referenced in the assembler code -; using the non-underscored symbol name. - -%imacro cextern 2 -%ifdef __NOU_VAR__ -extern %1 -%else -extern _%1 -%define %1 _%1 -%endif -%endmacro - -%imacro cexternfunc 2 -%ifdef __NOU__ -extern %1 -%else -extern _%1 -%define %1 _%1 -%endif -%endmacro - -; Macro for a public C symbol. If the C compiler requires leading -; underscores, then the underscores are added to the symbol names, otherwise -; they are left off. The symbol name is referenced in the assembler code -; using the non-underscored symbol name. - -%imacro cpublic 1 -%ifdef __NOU_VAR__ -global %1 -%1: -%else -global _%1 -_%1: -%define %1 _%1 -%endif -%endmacro - -; Macro for an global C symbol. If the C compiler requires leading -; underscores, then the underscores are added to the symbol names, otherwise -; they are left off. The symbol name is referenced in the assembler code -; using the non-underscored symbol name. - -%imacro cglobal 1 -%ifdef __NOU_VAR__ -global %1 -%else -global _%1 -%define %1 _%1 -%endif -%endmacro - -; Macro for an global C function symbol. If the C compiler requires leading -; underscores, then the underscores are added to the symbol names, otherwise -; they are left off. The symbol name is referenced in the assembler code -; using the non-underscored symbol name. - -%imacro cglobalfunc 1 -%ifdef __PIC__ -global %1:function -%else -%ifdef __NOU__ -global %1 -%else -global _%1 -%define %1 _%1 -%endif -%endif -%endmacro - -; Macro to start a C callable function. This will be a far function for -; 16-bit code, and a near function for 32-bit code. - -%imacro cprocstatic 1 -%push cproc -%1: -%ifdef flatmodel -%stacksize flat -%define ret retn -%else -%stacksize large -%define ret retf -%endif -%assign %$localsize 0 -%endmacro - -%imacro cprocstart 1 -%push cproc - cglobalfunc %1 -%1: -%ifdef flatmodel -%stacksize flat -%define ret retn -%else -%stacksize large -%define ret retf -%endif -%assign %$localsize 0 -%endmacro - -; This macro sets up a procedure to be exported from a 16 bit DLL. Since the -; calling conventions are always _far _pascal for 16 bit DLL's, we actually -; rename this routine with an extra underscore with 'C' calling conventions -; and a small DLL stub will be provided by the high level code to call the -; assembler routine. - -%imacro cprocstartdll16 1 -%ifdef __WINDOWS16__ -cprocstart _%1 -%else -cprocstart %1 -%endif -%endmacro - -; Macro to start a C callable near function. - -%imacro cprocnear 1 -%push cproc - cglobalfunc %1 -%1: -%define ret retn -%ifdef flatmodel -%stacksize flat -%else -%stacksize small -%endif -%assign %$localsize 0 -%endmacro - -; Macro to start a C callable far function. - -%imacro cprocfar 1 -%push cproc - cglobalfunc %1 -%1: -%define ret retf -%ifdef flatmodel -%stacksize flat -%else -%stacksize large -%endif -%assign %$localsize 0 -%endmacro - -; Macro to end a C function - -%imacro cprocend 0 -%pop -%endmacro - -; Macros for entering and exiting C callable functions. Note that we must -; always save and restore the SI and DI registers for C functions, and for -; 32 bit C functions we also need to save and restore EBX and clear the -; direction flag. - -%imacro enter_c 0 - push _bp - mov _bp,_sp -%ifnidn %$localsize,0 - sub _sp,%$localsize -%endif -%ifdef flatmodel - push ebx -%endif - push _si - push _di -%endmacro - -%imacro leave_c 0 - pop _di - pop _si -%ifdef flatmodel - pop ebx - cld -%endif -%ifnidn %$localsize,0 - mov _sp,_bp -%endif - pop _bp -%endmacro - -%imacro use_ebx 0 -%ifdef flatmodel - push ebx -%endif -%endmacro - -%imacro unuse_ebx 0 -%ifdef flatmodel - pop ebx -%endif -%endmacro - -; Macros for saving and restoring the value of DS,ES,FS,GS when it is to -; be used in assembly routines. This evaluates to nothing in the flat memory -; model, but is saves and restores DS in the large memory model. - -%imacro use_ds 0 -%ifndef flatmodel - push ds -%endif -%endmacro - -%imacro unuse_ds 0 -%ifndef flatmodel - pop ds -%endif -%endmacro - -%imacro use_es 0 -%ifndef flatmodel - push es -%endif -%endmacro - -%imacro unuse_es 0 -%ifndef flatmodel - pop es -%endif -%endmacro - -; Macros for loading the address of a data pointer into a segment and -; index register pair. The %imacro explicitly loads DS or ES in the 16 bit -; memory model, or it simply loads the offset into the register in the flat -; memory model since DS and ES always point to all addressable memory. You -; must use the correct _REG (ie: _BX) %imacros for documentation purposes. - -%imacro _lds 2 -%ifdef flatmodel - mov %1,%2 -%else - lds %1,%2 -%endif -%endmacro - -%imacro _les 2 -%ifdef flatmodel - mov %1,%2 -%else - les %1,%2 -%endif -%endmacro - -; Macros for adding and subtracting a value from registers. Two value are -; provided, one for 16 bit modes and another for 32 bit modes (the extended -; register is used in 32 bit modes). - -%imacro _add 3 -%ifdef flatmodel - add e%1, %3 -%else - add %1, %2 -%endif -%endmacro - -%imacro _sub 3 -%ifdef flatmodel - sub e%1, %3 -%else - sub %1, %2 -%endif -%endmacro - -; Macro to clear the high order word for the 32 bit extended registers. -; This is used to convert an unsigned 16 bit value to an unsigned 32 bit -; value, and will evaluate to nothing in 16 bit modes. - -%imacro clrhi 1 -%ifdef flatmodel - movzx e%1,%1 -%endif -%endmacro - -%imacro sgnhi 1 -%ifdef flatmodel - movsx e%1,%1 -%endif -%endmacro - -; Macro to load an extended register with an integer value in either mode - -%imacro loadint 2 -%ifdef flatmodel - mov e%1,%2 -%else - xor e%1,e%1 - mov %1,%2 -%endif -%endmacro - -; Macros to load and store integer values with string instructions - -%imacro LODSINT 0 -%ifdef flatmodel - lodsd -%else - lodsw -%endif -%endmacro - -%imacro STOSINT 0 -%ifdef flatmodel - stosd -%else - stosw -%endif -%endmacro - -; Macros to provide resb, resw, resd compatibility with NASM - -%imacro dclb 1 -times %1 db 0 -%endmacro - -%imacro dclw 1 -times %1 dw 0 -%endmacro - -%imacro dcld 1 -times %1 dd 0 -%endmacro - -; Macro to get the addres of the GOT for Linux/FreeBSD shared -; libraries into the EBX register. - -%imacro get_GOT 1 - call %%getgot -%%getgot: pop %1 - add %1,_GLOBAL_OFFSET_TABLE_+$$-%%getgot wrt ..gotpc -%endmacro - -; Macro to get the address of a *local* variable that is global to -; a single module in a manner that will work correctly when compiled -; into a Linux shared library. Note that this will *not* work for -; variables that are defined as global to all modules. For that -; use the LEA_G macro - -%macro LEA_L 2 -%ifdef __PIC__ - get_GOT %1 - lea %1,[%1+%2 wrt ..gotoff] -%else - lea %1,[%2] -%endif -%endmacro - -; Same macro as above but for global variables public to *all* -; modules. - -%macro LEA_G 2 -%ifdef __PIC__ - get_GOT %1 - mov %1,[%1+%2 wrt ..got] -%else - lea %1,[%2] -%endif -%endmacro - -; macros to declare assembler function stubs for function structures - -%imacro BEGIN_STUBS_DEF 2 -begdataseg _STUBS -%ifdef __NOU_VAR__ -extern %1 -%define STUBS_START %1 -%else -extern _%1 -%define STUBS_START _%1 -%endif -enddataseg _STUBS -begcodeseg _STUBS -%assign off %2 -%endmacro - -%imacro DECLARE_STUB 1 -%ifdef __PIC__ - global %1:function -%1: - get_GOT eax - mov eax,[eax+STUBS_START wrt ..got] - jmp [eax+off] -%else -%ifdef __NOU__ - global %1 -%1: -%else - global _%1 -_%1: -%endif - jmp [DWORD STUBS_START+off] -%endif -%assign off off+4 -%endmacro - -%imacro SKIP_STUB 1 -%assign off off+4 -%endmacro - -%imacro DECLARE_STDCALL 2 -%ifdef STDCALL_MANGLE - global _%1@%2 -_%1@%2: -%else -%ifdef STDCALL_USCORE - global _%1 -_%1: -%else - global %1 -%1: -%endif -%endif - jmp [DWORD STUBS_START+off] -%assign off off+4 -%endmacro - -%imacro END_STUBS_DEF 0 -endcodeseg _STUBS -%endmacro - -; macros to declare assembler import stubs for binary loadable drivers - -%imacro BEGIN_IMPORTS_DEF 1 -BEGIN_STUBS_DEF %1,4 -%endmacro - -ifndef LOCAL_DECLARE_IMP -%imacro DECLARE_IMP 2 -DECLARE_STUB %1 -%endmacro - -%imacro DECLARE_PTR 2 -DECLARE_STUB %1 -%endmacro - -%imacro SKIP_IMP 2 -SKIP_STUB %1 -%endmacro - -%imacro SKIP_PTR 2 -SKIP_STUB %1 -%endmacro - -%imacro SKIP_IMP2 1 -DECLARE_STUB %1 -%endmacro - -%imacro SKIP_IMP3 1 -SKIP_STUB %1 -%endmacro -endif - -%imacro END_IMPORTS_DEF 0 -END_STUBS_DEF -%endmacro - -%endif -