diff options
Diffstat (limited to 'mesalib/src/mesa/x86/common_x86_asm.S')
-rw-r--r-- | mesalib/src/mesa/x86/common_x86_asm.S | 440 |
1 files changed, 220 insertions, 220 deletions
diff --git a/mesalib/src/mesa/x86/common_x86_asm.S b/mesalib/src/mesa/x86/common_x86_asm.S index 1d61bde58..ea4047a0e 100644 --- a/mesalib/src/mesa/x86/common_x86_asm.S +++ b/mesalib/src/mesa/x86/common_x86_asm.S @@ -1,220 +1,220 @@ -/*
- * Mesa 3-D graphics library
- * Version: 6.3
- *
- * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * Check extended CPU capabilities. Now justs returns the raw CPUID
- * feature information, allowing the higher level code to interpret the
- * results.
- *
- * Written by Holger Waechtler <holger@akaflieg.extern.tu-berlin.de>
- *
- * Cleaned up and simplified by Gareth Hughes <gareth@valinux.com>
- *
- */
-
-/*
- * NOTE: Avoid using spaces in between '(' ')' and arguments, especially
- * with macros like CONST, LLBL that expand to CONCAT(...). Putting spaces
- * in there will break the build on some platforms.
- */
-
-#include "matypes.h"
-#include "assyntax.h"
-#include "common_x86_features.h"
-
- SEG_TEXT
-
-ALIGNTEXT4
-GLOBL GLNAME(_mesa_x86_has_cpuid)
-HIDDEN(_mesa_x86_has_cpuid)
-GLNAME(_mesa_x86_has_cpuid):
-
- /* Test for the CPUID command. If the ID Flag bit in EFLAGS
- * (bit 21) is writable, the CPUID command is present */
- PUSHF_L
- POP_L (EAX)
- MOV_L (EAX, ECX)
- XOR_L (CONST(0x00200000), EAX)
- PUSH_L (EAX)
- POPF_L
- PUSHF_L
- POP_L (EAX)
-
- /* Verify the ID Flag bit has been written. */
- CMP_L (ECX, EAX)
- SETNE (AL)
- XOR_L (CONST(0xff), EAX)
-
- RET
-
-
-ALIGNTEXT4
-GLOBL GLNAME(_mesa_x86_cpuid)
-HIDDEN(_mesa_x86_cpuid)
-GLNAME(_mesa_x86_cpuid):
-
- MOV_L (REGOFF(4, ESP), EAX) /* cpuid op */
- PUSH_L (EDI)
- PUSH_L (EBX)
-
- CPUID
-
- MOV_L (REGOFF(16, ESP), EDI) /* *eax */
- MOV_L (EAX, REGIND(EDI))
- MOV_L (REGOFF(20, ESP), EDI) /* *ebx */
- MOV_L (EBX, REGIND(EDI))
- MOV_L (REGOFF(24, ESP), EDI) /* *ecx */
- MOV_L (ECX, REGIND(EDI))
- MOV_L (REGOFF(28, ESP), EDI) /* *edx */
- MOV_L (EDX, REGIND(EDI))
-
- POP_L (EBX)
- POP_L (EDI)
- RET
-
-ALIGNTEXT4
-GLOBL GLNAME(_mesa_x86_cpuid_eax)
-HIDDEN(_mesa_x86_cpuid_eax)
-GLNAME(_mesa_x86_cpuid_eax):
-
- MOV_L (REGOFF(4, ESP), EAX) /* cpuid op */
- PUSH_L (EBX)
-
- CPUID
-
- POP_L (EBX)
- RET
-
-ALIGNTEXT4
-GLOBL GLNAME(_mesa_x86_cpuid_ebx)
-HIDDEN(_mesa_x86_cpuid_ebx)
-GLNAME(_mesa_x86_cpuid_ebx):
-
- MOV_L (REGOFF(4, ESP), EAX) /* cpuid op */
- PUSH_L (EBX)
-
- CPUID
- MOV_L (EBX, EAX) /* return EBX */
-
- POP_L (EBX)
- RET
-
-ALIGNTEXT4
-GLOBL GLNAME(_mesa_x86_cpuid_ecx)
-HIDDEN(_mesa_x86_cpuid_ecx)
-GLNAME(_mesa_x86_cpuid_ecx):
-
- MOV_L (REGOFF(4, ESP), EAX) /* cpuid op */
- PUSH_L (EBX)
-
- CPUID
- MOV_L (ECX, EAX) /* return ECX */
-
- POP_L (EBX)
- RET
-
-ALIGNTEXT4
-GLOBL GLNAME(_mesa_x86_cpuid_edx)
-HIDDEN(_mesa_x86_cpuid_edx)
-GLNAME(_mesa_x86_cpuid_edx):
-
- MOV_L (REGOFF(4, ESP), EAX) /* cpuid op */
- PUSH_L (EBX)
-
- CPUID
- MOV_L (EDX, EAX) /* return EDX */
-
- POP_L (EBX)
- RET
-
-#ifdef USE_SSE_ASM
-/* Execute an SSE instruction to see if the operating system correctly
- * supports SSE. A signal handler for SIGILL should have been set
- * before calling this function, otherwise this could kill the client
- * application.
- *
- * -----> !!!! ATTENTION DEVELOPERS !!!! <-----
- *
- * If you're debugging with gdb and you get stopped in this function,
- * just type 'continue'! Execution will proceed normally.
- * See freedesktop.org bug #1709 for more info.
- */
-ALIGNTEXT4
-GLOBL GLNAME( _mesa_test_os_sse_support )
-HIDDEN(_mesa_test_os_sse_support)
-GLNAME( _mesa_test_os_sse_support ):
-
- XORPS ( XMM0, XMM0 )
-
- RET
-
-
-/* Perform an SSE divide-by-zero to see if the operating system
- * correctly supports unmasked SIMD FPU exceptions. Signal handlers for
- * SIGILL and SIGFPE should have been set before calling this function,
- * otherwise this could kill the client application.
- */
-ALIGNTEXT4
-GLOBL GLNAME( _mesa_test_os_sse_exception_support )
-HIDDEN(_mesa_test_os_sse_exception_support)
-GLNAME( _mesa_test_os_sse_exception_support ):
-
- PUSH_L ( EBP )
- MOV_L ( ESP, EBP )
- SUB_L ( CONST( 8 ), ESP )
-
- /* Save the original MXCSR register value.
- */
- STMXCSR ( REGOFF( -4, EBP ) )
-
- /* Unmask the divide-by-zero exception and perform one.
- */
- STMXCSR ( REGOFF( -8, EBP ) )
- AND_L ( CONST( 0xfffffdff ), REGOFF( -8, EBP ) )
- LDMXCSR ( REGOFF( -8, EBP ) )
-
- XORPS ( XMM0, XMM0 )
-
- PUSH_L ( CONST( 0x3f800000 ) )
- PUSH_L ( CONST( 0x3f800000 ) )
- PUSH_L ( CONST( 0x3f800000 ) )
- PUSH_L ( CONST( 0x3f800000 ) )
-
- MOVUPS ( REGIND( ESP ), XMM1 )
-
- DIVPS ( XMM0, XMM1 )
-
- /* Restore the original MXCSR register value.
- */
- LDMXCSR ( REGOFF( -4, EBP ) )
-
- LEAVE
- RET
-
-#endif
-
-
-#if defined (__ELF__) && defined (__linux__)
- .section .note.GNU-stack,"",%progbits
-#endif
+/* + * Mesa 3-D graphics library + * Version: 6.3 + * + * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * Check extended CPU capabilities. Now justs returns the raw CPUID + * feature information, allowing the higher level code to interpret the + * results. + * + * Written by Holger Waechtler <holger@akaflieg.extern.tu-berlin.de> + * + * Cleaned up and simplified by Gareth Hughes <gareth@valinux.com> + * + */ + +/* + * NOTE: Avoid using spaces in between '(' ')' and arguments, especially + * with macros like CONST, LLBL that expand to CONCAT(...). Putting spaces + * in there will break the build on some platforms. + */ + +#include "matypes.h" +#include "assyntax.h" +#include "common_x86_features.h" + + SEG_TEXT + +ALIGNTEXT4 +GLOBL GLNAME(_mesa_x86_has_cpuid) +HIDDEN(_mesa_x86_has_cpuid) +GLNAME(_mesa_x86_has_cpuid): + + /* Test for the CPUID command. If the ID Flag bit in EFLAGS + * (bit 21) is writable, the CPUID command is present */ + PUSHF_L + POP_L (EAX) + MOV_L (EAX, ECX) + XOR_L (CONST(0x00200000), EAX) + PUSH_L (EAX) + POPF_L + PUSHF_L + POP_L (EAX) + + /* Verify the ID Flag bit has been written. */ + CMP_L (ECX, EAX) + SETNE (AL) + XOR_L (CONST(0xff), EAX) + + RET + + +ALIGNTEXT4 +GLOBL GLNAME(_mesa_x86_cpuid) +HIDDEN(_mesa_x86_cpuid) +GLNAME(_mesa_x86_cpuid): + + MOV_L (REGOFF(4, ESP), EAX) /* cpuid op */ + PUSH_L (EDI) + PUSH_L (EBX) + + CPUID + + MOV_L (REGOFF(16, ESP), EDI) /* *eax */ + MOV_L (EAX, REGIND(EDI)) + MOV_L (REGOFF(20, ESP), EDI) /* *ebx */ + MOV_L (EBX, REGIND(EDI)) + MOV_L (REGOFF(24, ESP), EDI) /* *ecx */ + MOV_L (ECX, REGIND(EDI)) + MOV_L (REGOFF(28, ESP), EDI) /* *edx */ + MOV_L (EDX, REGIND(EDI)) + + POP_L (EBX) + POP_L (EDI) + RET + +ALIGNTEXT4 +GLOBL GLNAME(_mesa_x86_cpuid_eax) +HIDDEN(_mesa_x86_cpuid_eax) +GLNAME(_mesa_x86_cpuid_eax): + + MOV_L (REGOFF(4, ESP), EAX) /* cpuid op */ + PUSH_L (EBX) + + CPUID + + POP_L (EBX) + RET + +ALIGNTEXT4 +GLOBL GLNAME(_mesa_x86_cpuid_ebx) +HIDDEN(_mesa_x86_cpuid_ebx) +GLNAME(_mesa_x86_cpuid_ebx): + + MOV_L (REGOFF(4, ESP), EAX) /* cpuid op */ + PUSH_L (EBX) + + CPUID + MOV_L (EBX, EAX) /* return EBX */ + + POP_L (EBX) + RET + +ALIGNTEXT4 +GLOBL GLNAME(_mesa_x86_cpuid_ecx) +HIDDEN(_mesa_x86_cpuid_ecx) +GLNAME(_mesa_x86_cpuid_ecx): + + MOV_L (REGOFF(4, ESP), EAX) /* cpuid op */ + PUSH_L (EBX) + + CPUID + MOV_L (ECX, EAX) /* return ECX */ + + POP_L (EBX) + RET + +ALIGNTEXT4 +GLOBL GLNAME(_mesa_x86_cpuid_edx) +HIDDEN(_mesa_x86_cpuid_edx) +GLNAME(_mesa_x86_cpuid_edx): + + MOV_L (REGOFF(4, ESP), EAX) /* cpuid op */ + PUSH_L (EBX) + + CPUID + MOV_L (EDX, EAX) /* return EDX */ + + POP_L (EBX) + RET + +#ifdef USE_SSE_ASM +/* Execute an SSE instruction to see if the operating system correctly + * supports SSE. A signal handler for SIGILL should have been set + * before calling this function, otherwise this could kill the client + * application. + * + * -----> !!!! ATTENTION DEVELOPERS !!!! <----- + * + * If you're debugging with gdb and you get stopped in this function, + * just type 'continue'! Execution will proceed normally. + * See freedesktop.org bug #1709 for more info. + */ +ALIGNTEXT4 +GLOBL GLNAME( _mesa_test_os_sse_support ) +HIDDEN(_mesa_test_os_sse_support) +GLNAME( _mesa_test_os_sse_support ): + + XORPS ( XMM0, XMM0 ) + + RET + + +/* Perform an SSE divide-by-zero to see if the operating system + * correctly supports unmasked SIMD FPU exceptions. Signal handlers for + * SIGILL and SIGFPE should have been set before calling this function, + * otherwise this could kill the client application. + */ +ALIGNTEXT4 +GLOBL GLNAME( _mesa_test_os_sse_exception_support ) +HIDDEN(_mesa_test_os_sse_exception_support) +GLNAME( _mesa_test_os_sse_exception_support ): + + PUSH_L ( EBP ) + MOV_L ( ESP, EBP ) + SUB_L ( CONST( 8 ), ESP ) + + /* Save the original MXCSR register value. + */ + STMXCSR ( REGOFF( -4, EBP ) ) + + /* Unmask the divide-by-zero exception and perform one. + */ + STMXCSR ( REGOFF( -8, EBP ) ) + AND_L ( CONST( 0xfffffdff ), REGOFF( -8, EBP ) ) + LDMXCSR ( REGOFF( -8, EBP ) ) + + XORPS ( XMM0, XMM0 ) + + PUSH_L ( CONST( 0x3f800000 ) ) + PUSH_L ( CONST( 0x3f800000 ) ) + PUSH_L ( CONST( 0x3f800000 ) ) + PUSH_L ( CONST( 0x3f800000 ) ) + + MOVUPS ( REGIND( ESP ), XMM1 ) + + DIVPS ( XMM0, XMM1 ) + + /* Restore the original MXCSR register value. + */ + LDMXCSR ( REGOFF( -4, EBP ) ) + + LEAVE + RET + +#endif + + +#if defined (__ELF__) && defined (__linux__) + .section .note.GNU-stack,"",%progbits +#endif |