1 #ifndef CYGONCE_HAL_VAR_ARCH_H
2 #define CYGONCE_HAL_VAR_ARCH_H
4 //==========================================================================
8 // Architecture specific abstractions
10 //==========================================================================
11 //####ECOSGPLCOPYRIGHTBEGIN####
12 // -------------------------------------------
13 // This file is part of eCos, the Embedded Configurable Operating System.
14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
16 // eCos is free software; you can redistribute it and/or modify it under
17 // the terms of the GNU General Public License as published by the Free
18 // Software Foundation; either version 2 or (at your option) any later version.
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21 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
22 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
25 // You should have received a copy of the GNU General Public License along
26 // with eCos; if not, write to the Free Software Foundation, Inc.,
27 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
29 // As a special exception, if other files instantiate templates or use macros
30 // or inline functions from this file, or you compile this file and link it
31 // with other works to produce a work based on this file, this file does not
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33 // License. However the source code for this file must still be made available
34 // in accordance with section (3) of the GNU General Public License.
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37 // this file might be covered by the GNU General Public License.
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40 // at http://sources.redhat.com/ecos/ecos-license/
41 // -------------------------------------------
42 //####ECOSGPLCOPYRIGHTEND####
43 //==========================================================================
44 //#####DESCRIPTIONBEGIN####
47 // Contributors: nickg
49 // Purpose: Define architecture abstractions
50 // Description: This file contains any extra or modified definitions for
51 // this variant of the architecture.
52 // Usage: #include <cyg/hal/var_arch.h>
54 //####DESCRIPTIONEND####
56 //==========================================================================
58 #include <pkgconf/hal.h>
59 #include <cyg/infra/cyg_type.h>
61 //--------------------------------------------------------------------------
62 // Processor saved states:
64 typedef struct HAL_SavedRegisters
66 // These are common to all saved states and are in the order
67 // stored and loaded by the movm instruction.
68 CYG_ADDRWORD vector; /* Vector number/dummy */
69 CYG_ADDRWORD lar; /* Loop address register */
70 CYG_ADDRWORD lir; /* Loop instruction register */
71 CYG_ADDRWORD mdr; /* Multiply/Divide register */
81 /* On interrupts the PC and PSW are pushed automatically by the */
82 /* CPU and SP is pushed for debugging reasons. On a thread switch */
83 /* the saved context is made to look the same. */
85 CYG_ADDRWORD sp; /* Saved copy of SP in some states */
86 CYG_ADDRWORD psw; /* Status word */
87 CYG_ADDRWORD pc; /* Program Counter */
91 //--------------------------------------------------------------------------
92 #endif // CYGONCE_HAL_VAR_ARCH_H