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##=============================================================================
##
##      i386.inc
##
##      i386 assembler header file
##
##=============================================================================
## ####ECOSGPLCOPYRIGHTBEGIN####                                            
## -------------------------------------------                              
## This file is part of eCos, the Embedded Configurable Operating System.   
## Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
##
## eCos is free software; you can redistribute it and/or modify it under    
## the terms of the GNU General Public License as published by the Free     
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## version.                                                                 
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## FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
## for more details.                                                        
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## 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
##
## As a special exception, if other files instantiate templates or use      
## macros or inline functions from this file, or you compile this file      
## and link it with other works to produce a work based on this file,       
## this file does not by itself cause the resulting work to be covered by   
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## must still be made available in accordance with section (3) of the GNU   
## General Public License v2.                                               
##
## This exception does not invalidate any other reasons why a work based    
## on this file might be covered by the GNU General Public License.         
## -------------------------------------------                              
## ####ECOSGPLCOPYRIGHTEND####                                              
##=============================================================================
#######DESCRIPTIONBEGIN####
##
## Author(s):   jskov
## Contributors:jskov
## Date:        1999-01-20
## Purpose:     i386 definitions.
## Description: This file contains various definitions and macros that are
##              useful for writing assembly code for the i386
## Usage:
##              #include <cyg/hal/i386.inc>
##              ...
##              
##
######DESCRIPTIONEND####
##
##=============================================================================

#------------------------------------------------------------------------------
# Exception, interrupt and thread context save area layout
# The layout of this structure is also defined in "hal_arch.h", for C
# code. Do not change this without changing that (or vice versa).

        # See SYSV ABI4, i386 supplement (page 37-38)
        # http://www.mit.edu/afs/sipb/contrib/doc/specs/software/sysv-abi/i386-psABI-4.pdf

        # Callee save registers (eax, ecx, and edx are scratch registers)

#ifdef CYGHWR_HAL_I386_FPU
#ifdef CYGHWR_HAL_I386_FPU_SWITCH_LAZY
        .equ    i386reg_fpucontext,     0
        .equ    i386reg_edi,            i386reg_fpucontext+4
#else
        .equ    i386reg_fpstate_valid,  0
        .equ    i386reg_fpstate,        i386reg_fpstate_valid+4
#ifdef CYGHWR_HAL_I386_PENTIUM_SSE
        .equ    i386reg_simd_xmm0,      i386reg_fpstate+108
        .equ    i386reg_simd_xmm1,      i386reg_simd_xmm0+16
        .equ    i386reg_simd_xmm2,      i386reg_simd_xmm1+16
        .equ    i386reg_simd_xmm3,      i386reg_simd_xmm2+16
        .equ    i386reg_simd_xmm4,      i386reg_simd_xmm3+16
        .equ    i386reg_simd_xmm5,      i386reg_simd_xmm4+16
        .equ    i386reg_simd_xmm6,      i386reg_simd_xmm5+16
        .equ    i386reg_simd_xmm7,      i386reg_simd_xmm6+16
        .equ    i386reg_simd_mxcsr,     i386reg_simd_xmm7+16
        .equ    i386reg_fpstate_size,   i386reg_simd_mxcsr+4
#else
        .equ    i386reg_fpstate_size,   i386reg_fpstate+108
#endif
        .equ    i386reg_edi,            i386reg_fpstate_size
#endif
#else
        .equ    i386reg_edi,            0
# endif
        .equ    i386reg_esi,            i386reg_edi+4
        .equ    i386reg_ebp,            i386reg_esi+4
        .equ    i386reg_esp,            i386reg_ebp+4
        .equ    i386reg_ebx,            i386reg_esp+4
        .equ    i386reg_edx,            i386reg_ebx+4
        .equ    i386reg_ecx,            i386reg_edx+4
        .equ    i386reg_eax,            i386reg_ecx+4
        .equ    i386reg_vector,         i386reg_eax+4
        .equ    i386reg_eip,            i386reg_vector+4
        .equ    i386reg_cs,             i386reg_eip+4
        .equ    i386reg_eflags,         i386reg_cs+4
        .equ    i386reg_context_size,   i386reg_eflags+4


#if defined(CYGHWR_HAL_I386_FPU) && defined(CYGHWR_HAL_I386_FPU_SWITCH_LAZY)
        .equ    i386reg_fpucontext_valid,       0
        .equ    i386reg_fpucontext_state,       i386reg_fpucontext_valid+4
#ifdef CYGHWR_HAL_I386_PENTIUM_SSE
        .equ    i386reg_simd_xmm0,              i386reg_fpucontext_state+108
        .equ    i386reg_simd_xmm1,              i386reg_simd_xmm0+16
        .equ    i386reg_simd_xmm2,              i386reg_simd_xmm1+16
        .equ    i386reg_simd_xmm3,              i386reg_simd_xmm2+16
        .equ    i386reg_simd_xmm4,              i386reg_simd_xmm3+16
        .equ    i386reg_simd_xmm5,              i386reg_simd_xmm4+16
        .equ    i386reg_simd_xmm6,              i386reg_simd_xmm5+16
        .equ    i386reg_simd_xmm7,              i386reg_simd_xmm6+16
        .equ    i386reg_simd_mxcsr,             i386reg_simd_xmm7+16
        .equ    i386reg_fpucontext_size,        i386reg_simd_mxcsr+4
#else
        .equ    i386reg_fpucontext_size,        i386reg_fpucontext_state+108
#endif
#endif

#------------------------------------------------------------------------------
# end of i386.inc